bluuebunny/crossref_metadata_2025 huggingface dataset:
Underwater Optical Imaging Technology and its Applications
Authors: Zeng Rong , He Jun Hua , Lv Pei
Published: June 2013

The applications of underwater optical imaging technology are reviewed. The main types of underwater laser imaging technology are introduced, such as underwater laser scanning imaging and underwater distance selected imaging. The respective imaging principle and characteristics are presented. Furthermore, the newest imaging technology, such as underwater compressive sensing imaging technology is described in detail. The recent researching status is included.
Two Methods of Improving the Focus Survey Precision Based on CCD Camera
Authors: Zhao Mei , Sha Yu Fang , Guo Fei , Zhao Ying , Xie Jun , Han Wei
Published: June 2013

The principium of measuring focus of aerial camera and the location of the actual image plane with CCD camera are introduced, and the methods to improve survey precision are described. The image is received by area CCD camera. The accuracy of orientation of the imaging central line is improved by means of fit the curve method or by center of gravity method. Therefore, the distance between imaging central lines is refinedly calculated. The experimented turn out that the two methods on measuring focus of aerial camera have high precision, and the survey errors are in accordance with the theoretical ones (0.12%). The two methods on deterministic result of the location of the actual image plane are identical, with their precision reaching 100%.
Characterization and Preparation of Polyamide 66/OV-POSS Nanocomposite Fibre
Authors: Lin Xiao Xia , Shao Qun , Wang Yi Min
Published: June 2013

Poly hexamethylene adipamide (PA66) nanocomposite fibers were prepared by using PA66 and polyhedral oligomeric silsesquioxanc (POSS). Rheological behavior, mechanical and thermal properties were characterized. Rheological study showed that a small amount of POSS can improve the flowing property and reduce PA66 viscosity. The onset decomposition temperature was improved with the addition of POSS as indicated by TGA analysis. Nearly all the mechanical properties were found to be increased with the adding of POSS. However, it was seen that higher POSS loading would not improve fiber performance due to serious of agglomeration.
Electronspun Thermal Responsive and Photocatalytic Zn(NO3)2/PNIPAAm Nanofibers
Authors: Jiang En Ying , Tang Dong Yan , Yu Zai Qian
Published: June 2013

Zn (NO3)2/PNIPAAm fibrous films were fabricated via electrospinning method, and then the morphologies of the films were investigated by high resolution scanning electron microscopy (SEM). The diameters and the alignment of fibers were analyzed using Image J software. The functional groups within the nanofibers were analyzed using Fourier Transform Infrared Spectroscopy (FTIR). The thermal responsive properties of the hybrid films were investigated using contact angle (CA) measurement method. Photocatalytic efficient activities were evaluated by degradation of methylene blue (MB) under 100W UV light at room temperature.
Digitized Multi-Exponential Deep-Level Transient Spectroscopy (DLTS) Using the Padé-Laplace Algorithm
Authors: Martin Patrick , Matouat Abdelaziz El , Lefebvre Jean Luc , Descamps Philippe
Published: June 2013

We apply the Padé-Laplace algorithm to automatically extract from DLTS multi-exponential transient decay measurements, the amplitude and the time constant of each discrete exponential component as well as the number of components without a priori assumption. Then, after setting restriction on the resolution of the multi-exponential problem itself due to noise, we present the field of this method numerical validity. Finally, the performance obtained on real signals is shown.
Incremental Tensor Principal Component Analysis for Image Recognition
Authors: Zhao Wei Dong , Liu Chang , Yan Tao
Published: June 2013

Aiming at the disadvantages of the traditional off-line vector-based learning algorithm, this paper proposes a kind of Incremental Tensor Principal Component Analysis (ITPCA) algorithm. It represents an image as a tensor data and processes incremental principal component analysis learning based on update-SVD technique. On the one hand, the proposed algorithm is helpful to preserve the structure information of the image. On the other hand, it solves the training problem for new samples. The experiments on handwritten numeral recognition have demonstrated that the algorithm has achieved better performance than traditional vector-based Incremental Principal Component Analysis (IPCA) and Multi-linear Principal Component Analysis (MPCA) algorithms.
Study of Physical Properties of Poly(vinyl alcohol) - Collagen Hydrogels Using a Response Surface Methodology
Authors: Hu Yang , Lin Hai , Liu Lan , Dan Wei Hua
Published: June 2013

A novel covalent bond cross-linked poly (vinyl alcohol) (PVA) collagen hydrogel was prepared and the physical properties were studied. The carboxyl groups were introduced into PVA through the reaction with chloroacetic acid. The EDC and NHS were used as cross-linker. The hydrogels were prepared by repeated freezing and thawing. For a better understanding of the influence of the parameters and their interaction, three factors were investigated by a response surface methodology. The physical properties of the hydrogels were analyzed. The results indicated that the response surface models could significantly fit the response values. Moreover, comparing with the single factor, the interactions between factors had more obvious effects to the physical properties of PVA-Collagen hydrogels. After the analysis of factors influences and investigation of the data and trends, the structure of the hydrogels might be the driving force of the different physical behaviors.
Abnormal Image Monitoring for Transmission Line Based on Digital Image Processing
Authors: Wang Chun Jie , Xin Bo Xiang
Published: June 2013

In the high-voltage transmission line system, the accidents have often occurred, and as a result of power line icing accidents are particularly prominent. In this paper, the author presents a DSP-based image monitoring of high voltage transmission line method. This method is use of high-voltage transmission tower-lines camera to collect the high voltage transmission line image in real time, and directly processing the image in DSP. If wires normal, it will not send pictures to the center and if the abnormal occurred, it will calculate the thickness of ice covering wires, converting the image to JPEG. This article designed and implemented the DSP-based image monitoring of high voltage transmission line algorithm exception, run successfully in the simulation and emulation system which can be used for monitoring of high voltage transmission line icing conditions online.
Multi-Objective Optimization of Automobile Powertrain Based on Genetic Algorithm
Authors: Chang Min , Zhu Hua
Published: June 2013

Simulation model of automobile power train has been built using ADVISOR, on the basis of Genetic Algorithm Tool Box, the paper takes a mini car as example to carry out performance simulation calculation and power train parametric optimization design. The result show that automobile power performance and fuel economy and emission performance have been greatly improved
Study on the Architecture and Key Technology for Internet of Things
Authors: Li Yong , Gan Xin Ling
Published: June 2013

The technology of the Internet of Things (IoT) has attracted highly attention of academia,industry,and news media. There are still many open issues in the definition, internal principles, architectures and system models of the IoT. Through the analysis of current technical materials, we first analyze three basic concepts and features of the IoT. Then we introduce the architecture composed of three layers of the IoT. Furthermore we summarize the key technologies of the IoT. Finally several development proposals are suggested for the IoT.
Fluorescence Enhancement of Methyl Orange by Silver Nanopartiles
Authors: Wang Y.
Published: June 2013

The effects of silver nanoparticles on fluorescent properties of methyl orange were studied. When silver colloid was added into methyl orange solution, a decrease of intensity of the absorption peak and the position of peak blue-shifted were observed. The intensities of fluorescence caused by S2-S0electronic transition and S1-S0electronic transition were quenched and enhanced respectively, and the effect trend increases with the increasing of concentration of silver colloid. Same trends were observed in the methyl orange solution with different pH values. The largest and smallest fluorescence enhancement ratios were observed at pH 2.1 and 4.8, respectively. The effects of silver colloid on the fluorescent properties of the methyl orange solution were attributed to the local field enhancement and non-radiative energy transfer and the enhancement of conjugated effect.
AVS Quick Mode Selection Algorithm Based on Adaptive Threshold
Authors: Zhang Xi Nan , Liu Ai Lin
Published: June 2013

In accordance with the complexity of AVS motion search and block mode selection algorithm, the paper poses a AVS quick mode selection algorithm based on premature termination norm and adaptive threshold. The algorithm can avoid much cost calculation of the useless macro block and save a lot of time on moving search and block mode selection in encoding process. Experimental results show that the computational capacity saved by the algorithm can amount to 78.6% at most, and the dropped level of Bits is larger than PSNR. The encoding speed can be effectively increased without the lower encoding performance.
An Evolutionary Annealing Approach to Alloy Tensile Organization Evolution
Authors: Zhang Shu
Published: June 2013

Annealing evolutionary algorithm is a method optimization and hybrid the genetic algorithm and simulated annealing algorithm; it is the genetic algorithm has a strong grasp of the overall capacity, but also the algorithm using simulated annealing local search ability of stronger populations of genetic algorithm the probability of acceptance, to avoid the mature problem of genetic algorithm. Using γ'/γ ordered from a passage in the interface of the atom spread to another channel to analyze g raft form of fancies of ordered the width of the matrix channel with changes, thinks a photograph of the raft form at high temperatures of element diffusion occur. But the high temperature pull/pressure creep during different orientations of γ' phase happen, the rate of different raft form reason and in different orientations of single crystal alloy phase during the microstructure evolution ordered γ solute elements of the directional migration patterns are still unclear.
Applying Fuzzy Set in Elevator Safety Management Evaluation Method
Authors: Liu Bai Lin , Zou Hui Yun , Chen Xi
Published: June 2013

In order to solve low accuracy, human effects and complexity in elevator safety management evaluation, a method based on machine learning was proposed. The method adopts safety checklist to collect data of elevator safety related conditions, comprehensively considering the importance and influence of every factor, which influences the safety on the basis of the safety checklist analysis and fuzzy set. To complete the process of the risk assessment and evaluation, we use machine learning combined with maintenance knowledge of evaluation, which provide users with comprehensive and effective corrective measures and suggestions. Applications show that the method can find potential leak of elevator system management.
Radial Basis Neural Network Based CAD System for Welding Material
Authors: Wang Juan , Lai Si Yu
Published: June 2013

The formula of industrial welding material is directly related to their physical properties, in order to study the relationship between the two factors. A computer-aided design system for welding materials based on RBF (Radial Basis Function) neural network theory is designed and implemented. The system is able to establish the artificial neural network model for impact factors and performance index, based on which the performance prediction, formula prediction and analysis modules can be generated. The simulated results show that the predicted results enjoys related error less than 5% compared with the measured data, which have great practical significance to guide welding material researchers to explore the correlation between impact factors and performance index.
Filtering of Digital Hologram
Authors: Guo Fei , Zhou Mai Yu , Zhao Mei , Fan Xiu Yng , Zhao Man
Published: June 2013

With the development of computer technology and high-resolution charge coupled device (CCD), digital holography is widely used. However, there are noises in digital hologram inevitably, which is very unfavorable to reconstruct hologram and analysis fringes. From two aspects: frequency domain and space domain, we adopted mean filter, medium filter and Butterworth low-pass filter to remove the noise in digital hologram obtained with experiment. The experimental result showed that digital hologram was clearer and its contrast was enhanced. There was better reconstructing effect.
Research on the Variety Discrimination of Apple Using a Hybrid Possibilistic Clustering
Authors: Wu Xiao Hong , Cai Tong Xiang , Wu Bin , Sun Jun
Published: June 2013

Near infrared reflectance (NIR) spectroscopy has been used to obtain NIR spectra of two varieties of apple samples. The dimensionality of NIR spectra was reduced by principal component analysis (PCA), and discriminant information was extracted by linear discriminant analysis (LDA). Last, a hybrid possibilistic clustering algorithm (HPCA) was utilized as classifier to discriminate the apple samples of different varieties. HPCA integrates possibilistic clustering algorithm (PCA) and improved possibilistic c-means (IPCM) clustering algorithm, and produces not only the membership values but also typicality values by simple computation of the sample co-variance. Experimental results showed that HPCA, as an unsupervised learning algorithm, could quickly and easily discriminate the apple varieties.
Research on the Evaluation Index of Product Design Based on Consumer, Designer and Manufacturer
Authors: Li Pu Hong , Shang Kai
Published: June 2013

Product design research is a systematic process with a specific target. For the manufacturer, market and consumer, the target is to meet the requirements, while for the designer, it's the design scheme. Therefore, this paper analyses the evaluation index from consumers, designers and manufactures to design product to meet trilateral interest.
The Effects of Advanced Materials on Aircraft Production Cost
Authors: Jia Ling Tong , Guo Ji Lian , Shen An Wei
Published: June 2013

Properties and application of advanced materials, such as composites, titanium, aluminum-lithium, is introduced. The weighted material cost factor is defined and the equation is given. A quantitative analysis of advanced materials on aircraft production cost is given based on DAPCA(Development and Procurement Costs of Aircraft)IV model by Rand Corporation. Calculation and analysis are given based on some active military aircraft to the feasibility and validity of the optimized model.
Crystallization Behavior of Poly(lactic acid) Nucleated by a Hydrazide Compound
Authors: Li Cheng Lang , Dou Qiang
Published: June 2013

A hydrazide compound (N-4) was used as a nucleating agent to induce the crystallization of poly (lactic acid) (PLA). PLA/N-4 samples were prepared by melt blending in an internal mixer. The melting and crystallization behavior and spherulitic morphology of the samples doped with different contents of N-4 were investigated by means of differential scanning calorimetry (DSC) and polarized light microscopy (PLM). It is found that the crystallization temperature and crystallinity increased but the spherulitic size of PLA decreased for the nucleated samples. It is indicated that N-4 is an effective nucleating agent for PLA.
Specimen's Short Fatigue Crack Fabrication Test for Q420qE
Authors: Yu Qi Ming
Published: June 2013

According to the BS7448 fracture toughness test standard, this paper conducted a CTOD(crack tip open displacement) fatigue crack precast test with the bridge steel and analysis the tests results, thus obtained the related conclusions. With the increase of thickness and strength of the steel plate, the security of fatigue performance and toughness of the plate is becoming more important for the structure. So the evaluation of fatigue performance is a very significant work for engineer. This dissertation through the text study the CTOD Specimens Fatigue Crack Prefabricated process of bridge steel and its characteristics, and its results will provide the important experimental basis and computation basis.
Drug Release from a pH/Temperature Sensitive Hydrogel Bead of Poly(Lysine Methyl Ester-Diacetoxy Tartaric Acid) and Sodium Alginate
Authors: Deng Kui Lin , Shen Hui Juan , Wang Shu Liang , Wang Meng , Ma Xin , Fan Xue Ying , Jin Wen Hui , Li Chun Xiu
Published: June 2013

In this study, a pH/temperature sensitive polymeric hydrogel from poly (lysine methyl ester-diacetoxy tartaric acid) and sodium alginate (PLMD-SA) was prepared via the condensation polymerization. Using indomethacin as the model drug, the controlled drug-release from the resulting pH/temperature sensitive PLMD-SA was evaluated as functions of pH, PLMD content and temperature by UV spectrophotometer. It was found that the release amount of indomethacin in pH=7.4 phosphate buffer solution (PBS) was evidently higher than in pH=2.3 PBS.
Numerical Simulation Analysis on the Temperature Field in Indirect Selective Laser Sintering of 316L
Authors: Ren Nai Fei , Jia Lei , Wang Dian
Published: June 2013

Using APDL programming language, an appropriate finite element model is created and the moving cyclic loads of Gauss heat source are realized. From the detailed qualitative analysis of the results, the variety laws of temperature field in indirect SLS are obtained. Plot results at different moments, temperature cyclic curves of key points and the curves of depth of fusion and width of fusion on the set paths, are of important guiding significance for subsequent physical experiments.
Research of Element Segregation to Large Wheel Hub Hardness and Mechanical Properties
Authors: Meng Fan Sheng , Min Hao Nian , Zhang Wei Wen , Zhang Wen , Shao Ming
Published: June 2013

This paper focused on the Cu alloy elements macro segregation of large squeeze casting wheel hub, analysed element segregation on the wheel axle, wheel arm and wheel rim. Three positions on the hardness and mechanical properties were tested, researched the influence of element segregation on the hardness and mechanical properties.
Experimental Monitoring of HB Hardness and Ultimate Tensile Strength UTS of Pressure of Al-Si Castings Depending on the Increase Pressure Changes
Authors: Pasko Ján , Gaspar Stefan
Published: June 2013

The paper analyses the impact of increase pressure on the value of ultimate tensile strength UTS and the Brinell hardness of HB castings made of silumin ENAC 47100 (AlSi12Cu1 (Fe)). Experimental observations enable to determine the dependency between the observed mechanical properties of pressure Al-Si castings and one of the basic parameters of die casting increase pressure.
Experimental Study of the Influencing Factors of Elevator Cable Magnetic Flux Leakage Detection Signal
Authors: Su Yi , Zhang Zhen , Zhang Tao , Yang Ming Li , Lin Mei , Lv Ling
Published: June 2013

The detection mechanism of Magnetic Flux Leakage (MFL) Method of elevator cable is proposed. Using Gauss-Mercury method to analyze the influence of different factors that lift-off value, fracture width, broken wires number and diameter and depth all that based on the collecting experimental system of MFL signals. The method can be used to optimize the detection probe design and detection signal processing.
Modeling and Design of High Power Half-Bridge LLC Resonant Converter
Authors: Gao Tian , Wang Qi , Yang Yan , He He
Published: June 2013

ntroduction was made to the working principle of topology for the half-bridge LLC resonant converter. Steady-state models of the high power LLC resonant network were researched. The high power half-bridge LLC converter was modeled and analyzed with First Harmonic Approach so as to obtain the optimal parameters. The turn ration of the converter was selected. The resonant inductance, resonant capacitance and excitation inductance were designed. The feasibility of the high power LLC converter design has been verified through simulation.
Heterogeneous Sensor Data Fusion Method for Temperature Monitoring in Carbon Fiber Carbonization Process
Authors: Li Hai Nan , Ren Li Hong , Ding Yong Sheng
Published: June 2013

Certain error exists in the data collected from multi-sensor network, which is caused by the external interference and defect of sensors. Thus, data fusion algorithm is applied in such monitoring to improve the reliability. In this paper, we propose a heterogeneous sensor data fusion algorithm for temperature monitoring in carbon fiber carbonization process. Through an improved adaptive weighting algorithm and iteration algorithm based on the average value, data from heterogeneous sensors are merged to obtain data closer to the real values. The feasibility of the method is verified in experiment.
Based on Sliding Mode Variable Structure Current Controller for Induction Motor Vector Control Technology
Authors: Cui Chun Yan , Li Kui , Li Bing , Fu Chao , Guo Jia
Published: June 2013

In this paper, according to the induction motor in rotating coordinate system mathematical model, established based on rotor flux oriented vector control model and realized flux linkage and torque decoupling. In order to solve the current high coupling, designed the sliding mode variable structure control algorithm of current controller. Based on the sliding mode variable structure control algorithm achievable conditions and Lyapunov stability theorem, proved that the sliding mode of accessibility and stability, determined the sliding model parameters. The simulation results show that the sliding mode variable structure control of induction motor vector control system, can reduce the torque ripple and the speed overshoot and improve the system parameter perturbation and external disturbance signal robustness.
Applied Research of Composite Weights – TOPSIS Method in Real Estate Investment Decision
Authors: Xu Yong Ge , Fu Yang
Published: June 2013

According to the shortage of the method in real estate investment decision, in order to supplement the deficiency of this one.this paper on the basis of comprehensive consideration of Effects of various factors of real estate project decision, this paper constructs the real estate investment decision-making multi-objective planning evaluation model.Into composite weights,determined by weightthrough the subjective evaluation method combined with the objective evaluation method,and by using the ideal point method (TOPSIS) to evaluate the real estate investment decision-making. This kind of method in view of the present real estate investment decision method is the present situation of the lack of certain to give support and complement, because real estate investment decision is a multi-objective process, so the method is introduced in this paper the method will be more close to the actual situation. Finally, combining with an example, this method is feasible and simple and practical, scientific and reasonable.
On-Board Training System Design and Research on Related Technologies
Authors: Xiao Jian Bo , Hu Da Bin , Hu Jin Hui
Published: June 2013

On-Board Training System (OBTS), which binds the simulator training with real equipment training and use of simulation technology, embedded simulation training into platform of real weapons, using real weapons system for high-fidelity training. OBTS can be used for training purposes to individual, department and whole ship while it is in port, under sail or in active service without disturbing its mission. This paper first introduces the principle of OBTS, and summarizes the status of the development of domestic and international on-board training system. Based on the training scale of system, OBTS is divided into three levels. Related technologies to achieve OBTS are analyzed. Navy's training system is shifted from the shore-based to on-board and from a single system to the level of cooperative training. Thus, the development of OBTS, and by the top-level design, introducing the design of OBTS in warship design phase has a very real sense to Navy.
Design of Micro-Computer Controlling System for Batch Asphalt Mixing Equipment in Measurement and Gradation
Authors: Liu Wen Ling , Yang Yu Liang , Fan Shu Li , Zheng Xiao Shen
Published: June 2013

The paper illustrates the design theory and method of micro-computer controlling system for batch asphalt mixing equipment in measurement and gradation. Then combined with the practical application, the paper introduces the solution of factors of affecting the quality of asphalt mixture.
A Virtual Human's Driving Method Based on Motion Capture Data
Authors: Wang Song Shan , Qi Yan Qing
Published: June 2013

This article gives a method about driving a virtual human by motion capture data in software Jack. Firstly simplify Jack's skeleton model according to the skeleton of capturing data BVH. Secondly set up an Euler angle rotation equation to mapping joint angles between BVH and Jack. Finally, program the method and give an example to show that it is available to improve Jacks human motion simulating by the human capturing data.
Design and Analysis of Cam Mechanisms with a Flat-Faced Follower by the Application of Support Function
Authors: Chang Yong , Lin Rong Fu
Published: June 2013

By employing the concepts of support line and support function of the integral geometry, this paper presents an method for analyzing cam mechanisms with a flat-faced follower, including a translating follower, oscillating follower and planar motion follower. Then the condition that the whole segments of the cam profile are convex, and the coordinates of the cam profile are provided. Moreover, the formulas of the radius of curvature, perimeter and area of the cam mechanism are derived. Finally, an example is presented.
The Measurement of Dielectric Constant and Electrical Conductivity of ER Fluids
Authors: Yu Nan Hui , Fan Ji Jun
Published: June 2013

In this paper, the dielectric constants of ER fluids with different particle concentration were measured by frequency method, and their electrical conductivities under different external electrical fields were also measured by method of conductivity cell constant. The results obtained from above measurements are as follows: the dielectric constant of ER fluid increases with the increasing of concentration; its electrical conductivity of the same concentration increases with the increasing of electrical field strength; for gradually increasing concentration, the conductivity first increases, then decreases. From analysis, it is suggested that the change of effective ion concentration of ER fluid is an important reason for its variation of conductivity.
Isomer Spectrum and Evolution Spectrum of C36 Isomers in Buffer Gas
Authors: Gao Juan , Meng Ying , Ni Jin Bo
Published: June 2013

A technology of ‘Time-going-backwards’ is used to search isomers of C36, molecular dynamic simulations of C36isomer evolution in He buffer gas at 2500K demonstrate that the isomers of low energy are important roles in the dynamics of C36and the lowest energy isomer—D2dare the most important role.
Research of Reconfigurable Virtual Instrument Technology
Authors: Lai Hong , Wang Yin Feng , Xu Zhi Liang
Published: June 2013

Reconfigurable system is desired in measurement applcation for low-cost products and short time to market. In this paper, we propose a software architecture of dynamical reconfigrualbe virtual instrument, which is built on component based array. In our architecture, the measurement system software is viewed as an integration of a set of reusable components, which are modelled with a set of event-based extern interfaces, internal interfaces for modifing own properties, a data process logic for executing own behavioural specifications and a series of communication ports for data exchange with others. The behaviours of the measurement system software can be viewed as an integration of components and their interactions, which is based on Extend Markup Language (XVIML). XVIML based dynamical interpreter and components based reassembled model are introduced to implement reassemble. The software can be easily reconfigured by changing reusable components and their interactions to adapt to the changing application requirements. Finally, a reconfigurable measurement platform based on above software architecture for testing engineering signal has been developed.
Virtual Reality Simulation of High Firing Rate Weapon
Authors: Xing Jie , Duo Yin Xian
Published: June 2013

In order to analyze the typical target damage efficiency of high speed aerial gatling-gun in different tactical environments, an Efficiency Evaluation System of Gatling-Gun based on STAGE has been researched and developed. It can get the damage probability of the target by setting the combat environment, the technical parameters of the weapon system, the operating parameters of the typical target and other technical indexes, and reconstruct the attack process through three-dimensional simulation. The technical parameters of the weapon system can be modified so as to achieve ideal damage effect of the typical target.It can be a reference for the configuration of the weapon platforms as well as its next research and develop goals.The reliability of the simulation model has already been verified through simulation analysis of intercepting flying targets of 0-2 Mach taken in a variety of radio frequencies.
Manufacturing Systems Integration Using Real Time QoS-Aware Middleware
Authors: Almadani Basem , Al-Roubaiey Anas , Ahmed Rashad
Published: June 2013

In recent years, there has been a growth in the amount of data used to improve the production processes. As a result, the cross communication and interaction between components has increased and became a key property of modern production system. To reduce the cost of communication and to increase the efficiency of these systems, middleware technology such as CORBA, COM+, Java RMI, and Web services are being used. Middleware is becoming more and more the essential factor in improving current Manufacturing Process Automation and Control Systems, and their applications have witnessed an increased demand in real time Manufacturing Distributed Applications. In this paper, we propose publish-subscribe middleware architecture based on the Data Distribution System (DDS) open standard. The proposed architecture aims to seamlessly integrate the existing heterogeneous manufacturing systems, such as SCADA system, DCS, PLCs, and databases; and improve the communication and real time data delivery among system components; also, it provides a QoS support layer between the communicating components. Furthermore, the proposed architecture is implemented and evaluated by intensive experiments.
New Digital Predistortion Technique with RLS Method for Wide-Band OFDM Signals
Authors: Du Qing Zhi , Yu Wei , Yang Jun , Ma Jing Jing , Xie Pei
Published: June 2013

In this paper,a new digital predistortion (DPD) approach is presented for linearization of power amplifies wide-band orthogonal frequency division multiplexing (OFDM) signals using a QRD-RLS method. The proposed DPD technique employs the improved QR decomposition of input OFDM signals' matrix and can significantly improve the error magnitude of vector (EMV) and performance to offset the nonlinear distortion of RF PAs. In addition, the proposed DPD approach provide a less complex and faster speed linearization system compared with LMS algorithm.
Research on Cloud Computing Industrial Cluster Innovation Evaluation Model
Authors: Zhuang Yi Jie , Wang Min , Pan Xiao Chong
Published: June 2013

In this paper, a Bayesian network-based assessment model used for evaluating the innovation of cloud computing industry is presented. Firstly, the innovation measurement model of cloud computing industrial clusters is designed. Then Bayesian network assessment and the self-learning method to the model are proposed. Finally, accompanying with empirical data, the most likely innovation status value of cloud computing industrial clusters and key variables influencing the innovation status value can be predicted. This model can provide the theory basis for researching the innovative development of cloud computing industries.
Laboratory Management Based on Internet of Things
Authors: Huang Jian Ming
Published: June 2013

University Laboratory is an important base to develop students' creative ability and practice ability, the traditional management model is inefficient. Laboratory management mainly includes the experimental teaching management, equipment management, laboratory safety. This paper introduces the key technology and architecture of the Internet of Things, and then puts forward a laboratory management mode Based on the technology of Internet of things; its application in laboratory management was expounded. The results show that it can effectively improve the management efficiency and management level.
Chinese Industrialization Process - Take Creative Industries for Example
Authors: Jiang Lin
Published: June 2013

Understanding of the status quo of the industrial structure is very important to determine the stage of China's industrialization process and be able to help us to a correct understanding of the current situation of the creative industries, to forecast the trend of the development of creative industries, and to provide a proper basis for guiding policy for the development of creative industries. The article concluded that the development of creative industries in China based on the park and the base for the development of creative industries to promote industrial organic interaction and common development of different industries within the creative industries.
Product Innovative Development for the Toilet Seat Cover
Authors: Lin Rui Lin
Published: June 2013

Generally, there are two types of toilets, squat toilets and pedestal toilets. There is no infection problem with squat toilets because users dont have to touch the toilets they use. However, the elderly have problem going down to a squat position or getting up from a squat position. And children often have problem aiming at right direction so that they may pee on their paints or on floors. Pedestal toilets are relatively more convenient for the elderly or children. However, inevitable skin-to-seat contact causes doubts in sanitation. Therefore, people usually use pedestal toilets in a squat position or step on toilet seats, leaving excrements on floors or stains on seats. Cleaners workload is thus increased, and images of public toilets are damaged. It is necessary to come up with a solution to the pedestal toilet user behavior problem. This study innovatively developed a toilet seat cover using eco-friendly materials to completely solve the problem with public pedestal toilets.
Humanizing Design Research on Automatic Watering Machine
Authors: Liu Yuan
Published: June 2013

With the high speed of scientific technology, people now lead a more hurried, fashionable and convenient life. The products which pay more attention to humanism are appreciated by the market. The article clarifies the humanizing design of this product mainly through three aspects: appearance design, product function and aesthetic value.
Challenges Posed by Multi Variety and Small Batch Production Mode and Countermeasures Acted by Chinese Small and Medium Enterprises
Authors: Chang Xue Fei
Published: June 2013

Multi variety and small batch production mod has brought such challenges to China's small and medium enterprises as more difficult of production planning increased difficulty of material requirement planning, and difficult of clearance after order completion. How to adapt to the developments and changes in the market and respond effectively to "multi variety and small batch" production mode, Chinese SMEs should adopt such strategies as changing employee values, reshaping corporate culture, developing complex human resources, building internal efficiency and information management systems.
Effects of Rare Earth on the Inclusions and Mechanical Properties of Austenitic Stainless Steel
Authors: Liu Xiao , Liang Jing Long
Published: June 2013

The effects of rare earth metals on the inclusions and the mechanical properties of 21Cr11Ni austenitic steel were studied by scanning electron microscope (SEM) and energy spectrum analysis. The results show that the morphologies and sizes of inclusions in 21Cr11Ni stainless steel are changed, and rare earth played a very good role of modifying inclusions. The fracture mode of 21Cr11Ni stainless steel is typical cleavage fracture, but quasi-cleavage and dimple fracture after adding RE into the steel. The transverse impact toughness of 21Cr11Ni stainless steel is improved obviously by RE. In comparison with 21Cr11Ni stainless steel without RE, the transverse impact toughness of 21Cr11Ni stainless steel with RE is increased 25.33% at-40°C, and the room temperature strength are improved, the elongation and reduction of area have been improved 9.18%, 12.71% respectively.
Analysis of the Design Method for the Casual Anchor Skeleton at the Closure for PC Continuous Box Girder Bridge
Authors: Li Ting , Sheng Xing Wang , Zhang Hua Shuai
Published: June 2013

A finite element study was performed to investigate the design method of the casual anchor skeleton at the closure of a PC continuous box girder bridge. Based on a finite element model of a certain four spans PC continuous box girder bridge, we found that the stresses of skeleton calculated with the finite model were 5 percent beyond those with the traditional analytic method. Besides, the tensile stresses increased 19 percent and the compressive ones were 14 percent decreased considered the vertical unbalance temperature and both increased 8 percent for the wind, which were totally ignored in the traditional analytic method. So, the traditional analytic method is inaccurate and unsafe for the casual anchor skeleton design, and the general temperature difference, the vertical unbalance temperature and the wind are better to be considered.
Modal Analysis of Compressor Impeller with Crack and Blade Fracture
Authors: Li Mei Jiao , Wang Hua Qing , Wang Wei Min
Published: June 2013

The research of impeller dynamic characteristics by modal analysis technology is a kind of practical and effective fault diagnosis method, which has the vital significance to realize the security of machinery. Crack and blade fracture often occur in centrifugal compressor impeller. In order to study the impeller dynamic characteristic with crack and the blade fracture, a three-dimension finite element model (FEM) was built using ANSYS program, and an experimental modal analysis was also carried out. The compared results show that the preceding four orders natural frequencies and vibration models are basically consistent, and those also verified the reliability of the simulation results. In addition, two kinds of failure mode were also simulated, such as crack and blade fracture. It concluded that all orders natural frequencies decrease clearly, compared with the normal impeller. How the severity of crack and blade fracture affects the natural frequency was also discussed.
The Finite Element Analysis of Pile-Raft Foundation after Optimization of the Raft Thickness
Authors: Wang Wei Yu , Zhao Tuo
Published: June 2013

The numerical analysis model about pile-raft foundation was bulited by using finite element analysis software.The raft settlement, pile-top counterforce and soil counter force were analyzed by changing the thickness of raft .The thickness were 0.15m,0.20m,0.25m and 0.30m. It was said that it could effectively reduce the raft uneven settlement and realize the redistribution of the pile and soil counterforce by increasing raft thickness.After changing the pile length and the raft thickness The rule of raft settlement were analyzed. After the pile length and thickness of optimization,it was good to control settlement of the pile raft foundation.
Stiffness Calculation of Boiler Horizontal Support
Authors: Liu Hong Jun , Zhi Shu Ya
Published: June 2013

In this paper,the calculation methods of the horizontal stiffness of the Boiler horizontal support are given to calculate the boiler level support rigidity simple and accurate, and can be applied in boiler design.,and the conditions of horizontal stiffness of the Boiler horizontal support are given to ensure the stability of the intermediate columns in the boiler frame.
A Software of Pre-Buckling Analysis of Laminated Plates and Shells Based on Stiffness Matrix Determinant
Authors: Cheng Zai Ling , Han Cheng Shuang , Zhang Hong Mei
Published: June 2013

The development of computer technology has provided advanced methods for the analysis of complex mechanics problems. Along with the enhancement of computer speed, the computational time used in a finite element analysis is reduced significantly. The main work in a pre-bucking finite element analysis will concentrate on structuring the analytical model and the software model. A normalized factor of the normalized determinant DET of stiffness matrix is defined in this article.The finite element analysis model used in the pre-bucking analysis of laminated composite plates and shells is presented based on the characteristic of the DET. An algorithm for controlling computational procedure and determining critical load is also presented. Numerical examples are given to validate the proposed method and satisfactory results are obtained.
Solidworks Engineering Drawing Automatically Adjust Technology and Implementation
Authors: Zhang Guang Feng , Yang Yan Fang , Hu Ji Quan , Yang Yi , Ma Hong Wei
Published: June 2013

Aiming at the problem of the engineering drawing after generating from parametric design including unreasonable layout, disharmonious proportions and nonstandard labeling, with VB6.0 software for the tool, combined with the Access database, the paper proposes the method of engineering drawing automatic adjustment. It realizes automatic adding of the project chart attribute, automatic adjustment of view scale, view position, annotation position and generating of material list automatically. Through this technology, it can develop automatic system of adjusting engineering drawing, which greatly improves the efficiency of parametric design and applying to actual production.
Research of 3D Parametric Design System of Worm Drive Based on Pro/E
Authors: Niu Hong Bin , Li Xiao Hua
Published: June 2013

Parametric design is one of reliable and effective modern mechanical design technologies. The process of 3D parametric design system of worm gear was developed to aim directly the character of worm drive. Establishment of CAD model of worm gear, design and calculation of parameters of worm drive and the output of design documents and drawings were solved based on the secondary development for Pro/E. Then a relative example is given to prove its feasibility and efficiency. The operation result show design efficiency of worm gear is enhanced greatly by using this 3D parametric design system, which meets the needs of modern mechanical design. This study also provides a reference to 3D parametric design for other parts.
Handling and Roll Prediction of Electric Drive Mining Trucks
Authors: Yin Yu Ming , Yang Jue , Zhang Wen Ming
Published: June 2013

A method is proposed to predict the handling and roll properties of electric drive mining trucks and evaluate their safety status. Trucksim is used to simulate the truck dynamics and Simulink is used to model the electric drive system, the truck model takes a double-lane change manoeuvre according to ISO 3888-1. A 190t mining truck is demonstrated and the understeer gradient and roll angle results respect its safety status well. Using this method, mining truck designers could make the handling and roll prediction before manufacture and modify their design.
Exploration of Non-Revolved Parts Modeling Based on MBD and Pro/ENGINEER
Authors: Wang Li Xin , Guo Yu , Guo Ming Yue
Published: June 2013

A great change in mechanical industry has occurred after several successful practices using MBD (Model Based Definition) of The Boeing Company. It is an inevitable trend from two-dimensional product definition to three-dimensional product definition in mechanical industry. Several standards for MBD have emerged around the world. This paper explores the non-revolved parts modeling methods based on MBD and Pro/ENGINEER, presents several key steps about full-annotated model per MBD and then makes a conclusion. Following these methods we successfully build a typical non-revolved model which conforms to MBD standards correctly and efficiently.
Product Distribution and Sulfur Migration in Rubber Pyrolysis
Authors: Guo Long , He De Min , Guan Jun , Zhang Qiu Min
Published: June 2013

Pyrolysis of vulcanized rubber (VR) with high total sulfur was carried out in the fixed-bed reactor. The effect of heating temperature and on the formation and distrubtion of tar, gas and char and sulfide in pyrolysis products were investigated.The maximal tar yield can reach 55.79% (wt,dry), water yield 1.30% (wt,dry). With increase in temperature, sulfur in char decreases and more sulfur migrates into gases and sulfur removal varies from 66.08% to 77.39 %, and the contents of H2S, CS2 and COS increase. Comparing with COS and CS2 , the content of H2S is overwhelming, since sulfur radicals from crack of VR is easier for hydrogenation reaction to produce H2S. GC-FPD (Flame Photometric Detector) was used to determine the sulfides in tar. The result indicates sulfides in tar are mainly present in form of sulfides with aromatic group. When temperature grows, sulfur transfers into pyrolysis gas instead of char and total content of detected sulfides in tar rises and then declines.
Numerical Simulation of Tip Vortex in Air Refueling
Authors: Liu Xiao Lei , Li Song , Jiao Jing Shan , Liu Yong Xue , Ming Lei , Liu Xiu Juan
Published: June 2013

Based on analysis on the tip vortex in air refueling, a model for simulating the tip vortex of air refueling is established in this paper, and the simulation results is studied. The results show that the established model is suitable for different aerial environments and mission requirements.
Numerical Simulation of Two-Phase Flow under High Acceleration in SRM with Submerged Nozzle
Authors: Xue Hai Feng , Chen Xiong , Wang Yong Ping , Zheng Ya
Published: June 2013

The two-dimension axisymmetric and two-phase flow in a full-size solid rocket motor with submerged nozzle under high acceleration condition has been simulated with Euler-Lagrange model. Without acceleration and under high axial acceleration on particle trajectories, the influences of different particle diameters were analyzed. The difference between gas flow field and two-phase flow field is significant. The particle accumulation zone above the inner wall of chamber and nozzle is mainly concentrated in two regions. The axial acceleration will intensify the impaction to the end of the chamber. The accretion of the particle phase diameter will increase the inertia of the particle phase, which may cause the following property worse, and the particles can easily form a highly-concentrated aggregation flow.