bluuebunny/crossref_metadata_2025 huggingface dataset:
Research and Design of Distributed Data Integration and Management for Electric Energy Information
Authors: Li Xi , Ye Hui Sheng , Wang Qi , Liu Jin , Liu Xiao Xiao
Published: June 2012

The fact that development and construction of electric energy information systems are based on different time periods and business needs results in the distribution of electric energy information in geographically dispersed databases, but in many cases there is need to browse, query, analyze and do other operations on all of the electrical energy information. Therefore, the integration of electric energy information is a key issue in the current power marketing work. This paper, based on current popular data integration methods, designs a distributed electric energy information integration and management model utilizing Oracle products to meet different business needs. It also gives a detailed description of the model structure and various components therein. Finally a brief analysis is given on the advantages and significance of this proposed platform.
Multiagent Based Dynamic Resource Control for Decentralized Multi-Project Using Combinatorial Exchange
Authors: Wang Lei , Zhan De Chen , Nie Lan Shun , Chu Dian Hui , Xu Xiao Fei
Published: June 2012

Decentralized multi-project environment is very common in modern times, and the dynamic resource control problem for this project environment has attracted more attention. Traditional optimization method for multi-project based on the centralization in decision making does not suit for solving this problem any more. In this paper, we analyze the distributed decision making process for the dynamic resource control in the decentralized multi-project environment, and present a multi-agent system model for this problem. Using combinatorial exchange based on market, we design a negotiation mechanism to cope with the time disruptions in the stage of project execution. Computational results show that the combinatorial exchange mechanism could solve the problem effectively and has a powerful controllability for the different weights of the multiple projects.
Network Performance of a PLC Protocol for Smart Grid
Authors: Lu Li Ping , Xu Ping Xia
Published: June 2012

Implementing smart grid demands a wide area communication network for connecting all the feeder equipments, consumers’ meters and high-consuming appliances, etc, for both utilities’ and consumers’ applications. Using power line itself as a communication medium is an ideal solution for construction of a cost-effective and high speed transmission network. A new flooding-based routing protocol has been developed. The PLC (Power Line Communication) network performances of this protocol are evaluated using theoretical analysis.
Research of RFID Intelligent Access Control System in the Internet of Things
Authors: Wang Ke Chao , Wang Tian Tian , Jia Zong Fu , Zong Ming Kui
Published: June 2012

Traditional access control system is relatively simple, low efficiency, small storage capacity, which can not meet the initiative, timeliness, and flexibility requirements of security technology in the Internet of Things. To solve this problem, this paper researches and designs the intelligent access control system based on Radio Frequency Identification (RFID) technology. The system consists of an access control management system and an access controller. The system can not only be used as the import and export of safety management, but also contribute to the internal order management, achieve effective control and management of access control region.
Design and Implement of Dynamic Context-Aware Monitoring System Based on OWL
Authors: Xue Dong Juan , Zhang Wen Xiao
Published: June 2012

Context-aware applications can sense and explore the context of production processes to provide proper and useful services to managers in workshop. The monitoring levels are partitioned and designed in this article. And the multi-level ontology model of materials is found which is expressed in the Web Ontology Language (i.e. OWL) as a ontology collection of describing places ages and events and associated properties among them. Within an intelligent monitoring system, dynamic adjusting algorithm of linking local coordination with global coordination for lacking parts is brought forward and dynamic coordination structure is put up based on event-driven architecture. Context-aware reactive behaviors can be expressed by using rules written in OWL Language, especially developed for context-aware applications.
Synthesis and Characterization of Terthiophene-Based Rod-Like Liquid Crystals
Authors: Liu Xiao Hui , Li Zhong Xiao , Zhang Song Ya , Pu Jia Ling
Published: June 2012

With 2,2',5',2''-Terthiophene as starting material, two liquid crystalline compounds containing Schiff’s base unit were synthesized in this paper. The structure of the compounds was confirmed by FTIR and 1H NMR. The thermally induced phase transition behaviors were investigated by POM and DSC, and the temperature ranges of liquid crystal phase of the two compounds were compared. Results showed that the symmetric compound exhibited a lower clearing point temperature and broader temperature range of liquid crystal phase.
Equipment Command Simulation Based on Workflow
Authors: Chen Le , Yu Hong Min , Jia Tao , Ye Chao
Published: June 2012

Based on the introduction of workflow management software, this paper analyzed the feasibility for simulating Equipment Command Office (ECO) operations with workflow product-LiveFlow. It demonstrated the simulation process and simulation object model (SOM) of ECO explicitly. Consequently, the ECO federate was designed using LiveFlow within HLA infrastructure. The “Human-in-Loop” simulation was realized by invoking the business process object (BPO) library of LiveFlow. This research is significant to the deployment, training and working-efficiency evaluation of ECO staffs. It’s also the foundation of business process reengineering (BPR) of ECO.
An New Agent Based Distributed Adaptive Intrusion Detection System
Authors: Liu Yang Bin , Shi Liang , Wang Bei Zhan , Wu Yuan Qin , Wang Pan Hong
Published: June 2012

In order to overcome the excessive dependence among the traditional intrusion detection system components, high rate false-alarm phenomenon caused by multiple alarms to the same invasion, inability to adaptively replace mining algorithm when testing environment has changed and other issues, this paper puts forward an Agent based distributed adaptive intrusion detection system, which employs Joint Detection mechanism for mining algorithm module, and Dynamic Election algorithm for the recovery mechanism, thereby improving the system adaptive ability to the external change.
Face Detection Based on Statistical Color Model and Haar Classifier
Authors: Jia Xi Bin , Li Lu Yi
Published: June 2012

The paper realizes the face detection algorithm based on the combination of the skin model and the Haar algorithm. Firstly, a platform for sample labeling was constructed, which combines the contour extraction algorithm with manual labeling. By labeling more than 10000 images obtained randomly from the Internet, a large training dataset is available. Then, a skin histogram, a non-skin histogram and a statistical skin model are constructed by analyzing the distribution of the skin and the non-skin color on the basis of a large training dataset. Based on this statistical color model, the skin area is detected and split from video files frame by frame. With the Haar Object Detection algorithm and the morphology algorithm such as erosion and dilation, the background noise and non-face areas are removed from the detected skin area and facial area is detected, which provides the basis for face recognition and the video-based visual speech synthesis. Compared with the Haar-based face detection method, our algorithm greatly improves the rate of correct detection and reduces the rate of the false positives.
Damage Evaluation Method for Integrated Electronic Information
Authors: Zhang Cheng , Shi Quan , Liu Tie Lin , Zhao Wu Kui
Published: June 2012

Battle damage level classification and judgment rule are established in order to evaluate battle damage for integrated electronic information system. The function index system of integrated electronic information system is established based on its function hierarchy decomposition through analyzing its function requirements. Using the ideas of fuzzy comprehensive evaluation method and analytic hierarchy process, an evaluation method of battle damage assessment for integrated electronic information system is proposed based on the function index system. The correctness and validity of the proposed method is verified through a calculation example. The result of the example indicates that the damage level of integrated electronic information system can be achieved from the proposed method correctly.
The Optimized Analysis to Stock Management of Spare Parts Used for Maintenance and Ensurence
Authors: Liu Tao , Zhang Lin , Chen Yong Ge , Xu Peng , Lian Ke
Published: June 2012

The stock management problems of weapon system’s maintenance and insurance spare part are analyzed, and the advanced experiences about spare part maintenance are summed up. After calculating the compartmentalize, structure and proportion of weapon system’s spare part, analyzing the proportions of spare part concretely, one reasonable stock structure model and the actualized direction are proposed in succession, which can be used as the design-making foundation of consummating the management system about weapon system’s spare part. At last the advice about spare part structure’s optimization is given.
Study on the Microstructure in Weld Metal of Cr-Ni Stainless Steel under Different Welding Technology
Authors: Li Hong Bo , Li Hai Tao , Li Mu Qin , Su Xing Jun , Li Chun Jie
Published: June 2012

According to Cr-Ni stainless steel, three different welding technology and the appropriate welding process parameters were selected. Three welded joints of Cr-Ni stainless steel were prepared. The microstructure in weld metal zone of Cr-Ni stainless steel under different welding methods was studied by X-fluorescent chemical composition analysis and microstructure analysis. The results show that alloy composition of the weld metal are different and distribute unequally under different welding methods, microstructure morphology and grain size of the weld layer are quite different. the structure of bottom is small amount of γ phase and a little δ phase are combined together and cover is γ phase and Cu-wealthy phases in the welds under TIG-MAG welding. the structure of bottom is coarse columnar crystal and cover is typical cellular dendrite in the welds under TIG- TIG welding. the structure of bottom is tiny equiaxial dendrites and columnar crystal and cover is some γ phase and a little δ phase are combined together in the welds under TIG-SMAW welding.
Implementing Online Viterbi Algorithm as Standard Relational Queries over Streaming Data
Authors: Li Rui , Zhang Lei
Published: June 2012

In this paper, we discuss a method for implementing online Viterbi algorithm as standard relational queries over streaming data. Our primary contribution is an approach to storing and manipulating most probable state paths, the candidate solutions to the problem, within a relational data model. We evaluate our prototype implementation over real-world sensor data from the Intel Lab dataset.
Feature Extraction Technique of Acoustic Target Based on Wavelet Packet Energy and Principal Component Analysis
Authors: Lü Yong Lin , Zi Zheng Hua
Published: June 2012

A feature extraction method based on wavelet packet energy distribution and correlation coefficient has been put forward to recognize the different acoustic targets in this paper. In view of the characteristics of acoustic target, we employed principal component analysis (PCA) to compress data set of the features extracted based on wavelet packet energy distribution and correlation coefficient. The results have been inputted into the neural network as eigenvectors for pattern recognition. Simulation results indicate that the method suggested in this paper have a recognition rate better than 8% with only wavelet packet energy method, thus verifying its effectiveness .
The Detection Method of Image Regional Forgery Based DWT and 2DIMPCA
Authors: Pan Xiao Zhong , Wang Hao Ming
Published: June 2012

Copy-Move is a common forgery in the research ﬁeld of digital image forensics, this paper proposes a detection approach based on wavelet transform and two-dimensional image principal component analysis. After reducing the image dimension by Discrete Wavelet Transform(DWT)，2DIMPCA is applied to the fixed sized overlapping blocks of a low-frequency image in the wavelet sub-band to yield a reduced dimension representation from the horizontal direction and the vertical direction. The eigenvectors are then lexicographically sorted, the forgery part are localized by detecting for all neighborhood vectors by a certain threshold. The experiments demonstrate that the proposed approach can not only localize the copy forgery regions accurately, but also reduce the amount of computation and improve the detection efﬁciency.
Fabrication of SnO2/Zn2SnO4/ZnO Nanocables through Thermal Oxidation of Zn and Sn Mixture Powders
Authors: Yu Ling Min , Fan Xin Hui , Shui Jing Yi , Cao Lei , Yan Wen
Published: June 2012

We demonstrate the synthesis of a three-layer-coaxial SnO2/ZnSn2O4/ZnO core–shell nanocable heterostructures with diameters 80-150 nm via thermal oxidation of Zn and Sn mixture powders. The products are characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and field emission transmission electron microscopy (TEM). The structural analysis shows the formation of ZnSnO4 in the interface region between the SnO2 core and ZnO shell, which is resulted from inter－diffusion of Sn and Zn ions during thermal evaporation. The selected area electron diffraction (SAED) pattern was composed of two series of overlapped polycrystalline rings attributed to SnO2 and Zn2SnO4, one set of hexahedron diffraction spots that can be indexed to the hexagonal ZnO. On the basis of investigation of the microstructures, the possible formation mechanism of Zn2SnO4 is discussed.
Doppler Signal Denoising Based on Feature Adaptive Wavelet Shrinkage Method
Authors: Yin Zhao , Jin Jing , Wang Yan , Shen Yi
Published: June 2012

The envelope extraction of Doppler signal spectrum is very important in ultrasonic blood flow detection, due to the fact that it can provide the diagnosis information of blood circulatory system. Doppler signals are often polluted by noises, which will affect the performance of the envelope extraction. Therefore, it is necessary to remove the noises before extracting the spectrum envelope. In this paper, a Doppler denoising method based on the Feature Adaptive Wavelet Shrinkage is proposed. The advantage of this method is that the threshold of each coefficient is set by using the coefficient at the current location and its two neighbor coefficients. Simulation results demonstrate that the proposed method can remove the noises of Doppler signals more effectively compared to the traditional wavelet threshold method.
Implementing and Optimizing DES on Stream Processor
Authors: Yang Liu , Ni Xiao Qiang , Liu Heng Zhu
Published: June 2012

Processors using stream architecture can make good use of the on-chip resources and explore the data locality and parallelism. DES algorithm is one of the most popular cipher algorithms. This paper proposes the novel implementation of DES algorithm on stream architecture based on both stream programming model and DES algorithm and the speedup is 1.27 times.
An Improvement of the Response Surface Method Based on Successive Linear Interpolation
Authors: Zhao Wei Tao , Yu Tian Jun , Yang Yi
Published: June 2012

The response surface method (RSM) is widely used to alleviate the computational burden of engineering analyses. For reliability analysis, the common approach in the RSM is to use a linear interpolation technique. However, the experimental points are all arranged using the classical RSM in each process of interpolation. Therefore, the number of experimental points is large that resulting in the efficiency is lower. In this study, an improvement of the RSM for structural reliability analysis has been proposed based on the technique of successive linear interpolation. As seen from the example, the proposed method yields better results than those of the classical RSM, and the number of experimental points using the proposed method is less than that of classical RSM. It seems that the proposed method improves the convergence speed and reduces the computational effort.
Texture Image Segmentation Based on MRMRF in Contourlet Domain
Authors: Wang Xi Jie , Zhao Xiao Fan
Published: June 2012

This paper presents a new multi-resolution Markov random field model in Contourlet domain for unsupervised texture image segmentation. In order to make full use of the merits of Contourlet transformation, we introduce the taditional MRMRF model into Contourlet domain, in a manner of variable interation between two components in the tradtional MRMRF model. Using this method, the new model can automatically estimate model parameters and produce accurate unsupervised segmentation results. The results obtained on synthetic texture images and remote sensing images demonstrate that a better segmentation is achieved by our model than the traditional MRMRF model.
Eight-Neighborhood Based Background Modeling
Authors: Lu Yan , Dai Ming , Jiang Lei
Published: June 2012

In order to solve the Gaussian kernel density-based background modeling, we propose a background modeling method based on an 8-neighborhood pixels sample set. In this method, we use the target pixel and its surrounding 8-neighborhood pixels to analyze whether it is included in the background or in the foreground sample space. Experimental results show that the method can judge the object as the background interference caused by the cyclical movement. By practical verification, the algorithm of the background modeling can full meet the requirements of the target detection algorithm.
Based on Immune Algorithm Heat Treatment Analysis of the Alloy
Authors: Zhang Shu , Meng Lei
Published: June 2012

We have used the metaphor of ant colonies to define "the immune system", a class of distributed algorithms for combinatorial optimization. In this paper we analyze some properties of Ant-cycle, the up to now best performing of the ant algorithms we have tested. 4.2% Re alloy 1320 °C solution treatment can significantly reduce the elements in the interdendritic / arm region segregation, after the high temperature air-cooling solution, γ'-phase combination of butterfly present form, after aging at 1100 °C, the size of about 0.45 m to cubic γ'-phase coherent manner mosaic in g matrix, aging temperature increased, γ' phase size too grew up.
A Multiagent-Based Network Information Filtering System
Authors: Mu Zhen Hai
Published: June 2012

Many issues such as low accuracy rate, poor filtration efficiency, and too much network resource occupancy exist in most information filtering systems in the current market. Therefore, there is a great demand to develop a new network filtering system. In this paper, agent techniques are first reviewed, and then the architecture and the working mechanism of a multiagent-based information filtering system is presented. Finally, the design method for core components of the system is given.
Study on the Interface Bonding Mechanism of Steel Sheet/Aluminum Foam/ Steel Sheet Sandwiches
Authors: Zhang Min , Chen Chang Jun , Chang Qing Ming
Published: June 2012

Steel sheet/aluminum foam/steel sheet sandwich structure have higher stiffness than aluminum sheet/aluminum foam/aluminum sheet sandwich. So in this study the aim is to manufacture steel/Al-foam core/steel sandwich panels by rolling of two steel-face sheet and Al-Si powders. The deformation of the rolled-piece, powder grains and the joining deformation of the composite interface are discussed and analyzed in this paper. SEM and EDS of the compound interface are investigated. It was concluded that a metallurgy bonding interface was formed by diffusion reaction and a brittle compound generated.
The Application of IaCLA Model to Adaptive Image Quantization
Authors: Jiang Yuan , Wu Lu Shen , Huang Tao
Published: June 2012

The quantization scheme proposed in this paper uses a nonlinear transform to exploit the visual masking such as brightness masking and contrast masking, etc. It’s based on the IaCLA model derived from the intra-band masking. The application of the proposed strategy to JPEG2000 coding framework is presented, and the experimental results show the proposed approach can efficiently protect low amplitude wavelet coefficient and discriminate the simple edge even in the smooth region.
Two-Photon Three-Dimensional Optical Storage of a New Photobleaching Material
Authors: Cai Jian Wen
Published: June 2012

Two-photon three-dimensional optical data storage is an important method to realize high density storage and ultra-high density storage. This paper introduces the the basic principle of two-photon photobleaching optical storage, describes two-photon three-dimensional optical storage system and the absorption and fluorescence spectra of a new type of photobleaching materials BASF in detail, carries out the experimental study that two-photon information is written and read out against a new photobleaching material of BASF using femtosecond pulse laser wavelength is 800nm, and realize two layers of optical information storage, the information point spacing is 8μm and the interlayer distance is 15μm; two-layer information point signal strength is recognized using Recognition algorithm. The experiment proved that new photobleaching material of BASF can be used for two-photon three-dimensional optical storage, that has laid a solid foundation for the high-density and ultra-high density optical information storage materials research.
A New Storage Design of Distributed Geographic Information
Authors: Liu Yan Li , Yu Yan , Du Xiao Chu
Published: June 2012

In order to solve the storage problem of mass graphic data in web, an improved hierarchy of graphic objects is used in this paper. By building up layer object, the system can manage the data for different levels of abstraction. It is different from Object-Oriented Data Base (OODB) which used a relational table as an object to manage data. Uniform operations for the same terrain are offered. Using Object-based Storage Device (OSD) is advantaged at data transmission. The method of storing layer object in OSD is given in the paper. Empirical results show that the mechanism is well-suited to fetch detail data in web.
Study on the Cu-ZSM-5 Catalyst for SCR System of Diesel Engine
Authors: Li Wei , Chen Ling Shan , Liu Xiong , Liu Yi
Published: June 2012

In this paper, we shall first briefly introduce fuzzy sets and related concepts of the reaction principle of Cu-ZSM-5 catalyst with the NO, and the preparation of Cu-ZSM-5 catalyst is also investigated. And the NOx conversion efficiency of Cu-ZSM-5 catalyst is analyzed with the experiment. Compared to V2O5/WO3/TiO2catalyst, the reaction activity of Cu-ZSM-5 catalyst at low temperature is much better, while the range of reaction activity temperature of V2O5/WO3/TiO2catalyst is relatively wide. Finally, with the diesel engine ESC test, the Cu-ZSM-5 Catalyst for SCR system can effectively reduce the NOx emissions, and the diesel engine which is installed the SCR is able to achieve the requirements of Euro Ⅳ for NOx limits.
Study on FSK Signal Demodulation Based on Chirp-Z Transform
Authors: Xia Jiang Hua , Guo Jing , Wang Xiao Ming
Published: June 2012

The Frequency-Shift Keying (FSK) signal is frequently used in track circuits because of the strong ability of resistance interference. Symbol rate is one of the important signal parameters for safety of railway. The paper propose a algorithm of high precise detectation of FSK signal using Chirp-Z transform; Theoretically gives the detailed explanation to the major technique, and has carried on the Matlab simulation, The simulation result indicates this method during the enhancement is shifted signal examination precision, reduced the computation order of complexity.
The Method of Generating Building Ladder Profile Based on SketchUp
Authors: Zhang Xiao Ling , Han Guang Wei
Published: June 2012

Characteristics of SketchUp which is a kind of three-dimensional architectural design software and its shortage in real-time splitting are discussed in the paper. Taking a residential building as example, the author introduces the specific method of creating a ladder profile using group. Drawing building ladder profiles become simple and quick by using the method which improves the efficiency of drawing and has a strong practical value.
Multi-Scale Semantic Model for Unsupervised Object Segmentation
Authors: Li Yu , Li Xiang Juan , Zhang Ya Sen , Sun Xian , Wang Hong Qi
Published: June 2012

It is difficult to segment instances of object classes accurately unsupervised in images, because of the complexity of structures, inter-class differences, background interference and so on. A multi-scale semantic model method is proposed to overcome the disadvantages existing in most of the relative methods. This method uses generative model to deal with the objects obtained by multi-scale segmentations instead of whole image, and calculates kinds of visual features to mine the topic information of every object. In the segmentation process, a semantic correlative function of every segment block based on KL divergence is built up and minimized to select the object correct regions. Experimental results demonstrate the effectiveness of the proposed method.
Ti-Nb-Ta-Zr Alloy Rolling Deformation Texture
Authors: Yan Li , Liu Yu Liang , Zhang Lin Guang , Yu Hui Wu
Published: June 2012

TiNbTaZr alloy is potential medical biomaterials, due to its high strength, low elastic modulus, superelasticity, superplasticity, and many other excellent performances. TiNbTaZr rolling samples under solid solution state and deformation state were characterized by TEM and XRD technologies. The results show that the alloy has the grain size of 42mm, straight of grain boundaries, intragranular no significant defects after solution heat treatment at 1063K. When the deformation reaches 40% in the rolling process, the local zones in intragranular appears high density of dislocations and a small amount of twinning. When the rolling is to 92%, the high density of dislocation cells forms nano subgrain block in sample with {100} plate texture and the texture axis of {100} plate under density of 2.29.
A Novel Method to Estimate ARMA Time-Varying Parameter Using Grey Forecasting Model
Authors: Chen Wei Zhen
Published: June 2012

In this paper, a novel method to estimate ARMA time-varying parameter is proposed, based on ESCGMmv grey forecasting model. The estimation procedure of this method consists of two phases, first estimating online ARMA parameter by the least squares method. Then, using ESCGMmv grey forecasting model to forecast the error between and .The model gives an adequate description of the system under consideration. Finally, modify the estimate parameter by the estimate error. Simulation results confirm that the propose method can obtain more accurate estimate time- varying parameter.
Parameter Optimization of Decentralized OS-CFAR System Based Modified PSO Method
Authors: Liu Pan Zhi , Pan Ruo Yu , Guo Guo Fang
Published: June 2012

For decentralized ordered statistics (OS) constant false alarm ration (CFAR) detection system, the parameter estimation and performance analysis in complicated detection condition is a typical nonlinear optimization problem. Owing to the nonlinear property of distributed OS-CFAR detection system, it is seriously difficult to obtain optimal threshold values using some optimization method at the fusion center. This paper provides a novel solution based on an effective and flexible particle swarm optimization (PSO) algorithm. As a novel evolutionary computation technique, PSO has attracted much attention and wide applications, owing to its simple concept, easy implementation and quick convergence. Using this approach, all system parameters can be optimized simultaneously. The simulation results show that the proposed approach can achieve effective performances with the above method.
A Survey on Mobility-Assisted Data Collection in Wireless Sensor Networks
Authors: Yu Jing , Hua Yu , Deng Hui Qiong
Published: June 2012

Collecting data from spatially distributed sensor nodes is a generic form of sensor network applications. Multihop forwarding has been broadly used for this purpose, but it could be inefficient in terms of energy consumption.A downside of this approach is an increased data delivery latency, and thus we should optimize the motion of data mule so that we can minimize the latency. In this paper, we survey the existing work on the mobility-assisted data collection by classifying them into three categories based on the mobility exploited: the random mobility, the predictable mobility, and the controlled mobility. We also highlight several open problems on this topic.
Topical Concept Based Text Clustering Method
Authors: Ding Yi , Fu Xian
Published: June 2012

Text clustering typically involves clustering in a high dimensional space, which appears difficult with regard to virtually all practical settings. In addition, given a particular clustering result it is typically very hard to come up with a good explanation of why the text clusters have been constructed the way they are. . To solve these problems, based on topic concept clustering, this paper proposes a method for Chinese document clustering. In this paper, we introduce a novel topical document clustering method called Document Features Indexing Clustering (DFIC), which can identify topics accurately and cluster documents according to these topics. In DFIC, “topic elements” are defined and extracted for indexing base clusters. Additionally, document features are investigated and exploited. Experimental results show that DFIC can gain a higher precision (92.76%) than some widely used traditional clustering methods.
Design of USB Communication System Based on C8051F340 MCU
Authors: Huang He Song , Liu Kui , Xue Lin , Zhang Xiao Qi
Published: June 2012

This article, taking computer as USB (Universal Serial Bus) Host and C8051F340 MCU (Micro Control Unit) from Silicon Laboratories as USB Device Controller, has designed a USB Smallest Communication System. With the help of USB driver source code provided by Windows DDK (Device Development Kit), the system can realize the USB communication function between MCU and computer. The article describes the smallest unit design of USB firmware as well as simple USB application development in detail.
A New Outlier Mining Method Based on CLIQUE in Multi-Database
Authors: Xiang Xiang Qin , Liu Deng Sheng
Published: June 2012

As a branch of Data-Mining, outlier mining is a promising prospect, and clustering analyse is a kind of technology in spatial outlier mining. The paper analyse the clustering arithmetic , compare some arithmetic of Clustring, and discuss the strongpoint and shortpoint of them.The paper research the spatial data and Outlier attributes in high dimensional space. And analysing the CLIQUE algorithm to detect the Outlier in high dimensional space, this approach can find the outliers in high-dimensional space effectively. In conclusion, the main trends of spatial outlier mining are forecaste.
Research and Design of Face Detection Based on OpenCV in CodeBlocks
Authors: Lv Xue Cong , Zhang Zheng Bing
Published: June 2012

To implement the problem that the side face detector is slow and its detection rate is low, in this paper, we choose the Adaboost face detection algorithm based on statistics. Then the characteristics of imaging processing software OpenCV and the principle and training flow of Adaboost face detector are introduced. Further, combination with the supplement Haar-like features improved, the full range of face detection based on OpenCV in CodeBlocks is achievement, thereby decreasing the loss of the human faces.
Nonlinear Analysis of EEG Using Fractal Dimension and Approximate Entropy
Authors: Geng Shu Juan , Zhou Wei Dong , Yao Qing Mei , Ma Zhen
Published: June 2012

The automated detection of seizures in EEG is significant for epilepsy monitoring, diagnosis and rehabilitation. In this work, we evaluated the differences between epileptic EEG, interictal EEG and normal EEG by computing their Higuchi Fractal Dimension (HFD) and Approximate Entropy (ApEn). The calculated results show that there are significant differences between epileptic EEG and normal EEG in the variations of HFD and ApEn. HFD and ApEn have been shown to be useful to characterize normal and epileptic brain electrical activities, and the degree of complexity of epileptic EEG is lower than that of normal EEG even during interictal time. Our results could be helpful for interpreting the epileptic brain electrical activity and the normal brain electrical activity, and their neurodynamics.
AJAX-RMI Serialization and Deserialization Model Based on JSON and IocContainer
Authors: Li Jun , Huang Qiang , Long Yang
Published: June 2012

Asynchronous JavaScript and XML (AJAX) has a big resistance to the communication between JavaScript at client side and the service module. AJAX service component is difficult to be integrated with current MVC framework non-invasively. Data exchange system based on structural XML occupies many system resources and transmission bandwidth, so its structure can’t be matched effectively between client and server system. Aiming at these problems, a serialization or deserialization model called EZAjax based on JSON data exchange which can be seamlessly integrated with current mainstream MVC frameworks and can be interfaced by AJAX remote method is designed. With the Inverse of Control (Ioc) container, the JavaScript dynamic stub generation and the JSON serializing model of service module are proposed to implement transparent remote call between JavaScript and the service module inside the container. Application instance of EZAjax is given.
Preparation of Forsterite by Solid State Synthesis Process and its Dielectric Properties
Authors: Shi Fei , Du Peng Cheng , Liu Jing Xiao , Wu Ji Wei , Luo Chun Yuan
Published: June 2012

Using basic magnesium carbonate (Mg(OH)2•4MgCO3•6H2O) and SiO2 as raw materials, forsterite (Mg2SiO4) was prepared by solid state synthesis process. The optimal process for synthesizing Mg2SiO4 was obtained by adjusting Mg/Si molar ratio and sintering temperature. The crystal phase of the obtained Mg2SiO4 powder was determined by X-ray diffraction (XRD). The results indicate that the single-phase Mg2SiO4 powder can be obtained when the mixtures with Mg/Si molar ratio of 2.05～2.01 were sintered at 1350°C for 3h in the air. The as-prepared Mg2SiO4 ceramic samples which were sintered at 1300～1360°C showed better dielectric properties with εr=7.4 and tanδ =7.5×10-4.
Synthesis and Thermotropic Liquid Crystallinity of Alkylammonium Salts Containing Azobenzene Mesogens
Authors: Yu Lin Juan , Peng Ren Gui , Wang Yuan Zheng , Yang Ying Kui
Published: June 2012

Alkylammonium salts have been successfully synthesized by reacting 1-iodoalkanes with an azobenzene mesogen of 1-[bis-(2-hydroxyethyl) amino]-6-(4-ethoxyazobenzene-4-oxy) hexane. They were found to mainly form thermotropic smectic liquid crystals with various textures under polarized light. Their phase transition temperatures vary with alkyl chains, and the ordering of lamellar organization decreases with increasing the length of alkyl tails. The as-synthesized liquid crystals may have potential application in the field of photoresponsive and nanostructured materials.
Photocatalytic Activity of Pd Doped Tin Dioxide Inverse Opal Films
Authors: Liu Yang , Li Bo , Yao You Wei , Gao Jing Jing , Liu Zhen Dong , Zhou Ji
Published: June 2012

Inverse opal films (IOFs) of SnO2 doped with Pd were prepared by the self-assembly technique using polystyrene microsphere (PS sphere) as template in combination with a sol-gel method. The photocatalysis properties of SnO2 IOFs were estimated through measuring the rate of the degradation of methylene blue (MB). The result shows that SnO2 IOFs have good photocatalytic activity, the solution of MB was degradated over 60% in 4 hours when it was dipped in SnO2 IOFs and exposed in the UV light. The addition of Pd in SnO2 IOFs improved the photocatalytic activity of the films and the degradation of MB can exceed 80% with the same condition. This sort of SnO2 IOFs doped with Pd indicated a potential application in photocatalysis field.
The Research of Diluents Added to HZSM-5 on the Methanol to Gasoline Reaction
Authors: Guo Jin Feng , Zhu Ling Jun , Yin Qian Qian , Wang Shu Rong
Published: June 2012

The performance of methanol to gasoline (MTG) reaction was apparently influenced by the addition of diluents to ZSM-5. The lifetime of catalyst was prolonged when appropriate amount of diluents was added into the catalyst. The yield of MTG oil improved with the addition of diluents, while the initial conversion of methanol decreased slightly，and the total amount of oil product increased. At the same time, the content of dimethyl ether (DME) and light olefins obviously increased when large amount of diluents was added into the catalyst.
Growth Mechanism and Characterization of Zinc Oxide Spheres
Authors: Xu Shuang
Published: June 2012

Novel uniform-sized, ZnO mesocrystal spheres have been synthesized on a large scale using a facile one-pot hydrothermal method in the presence of the water-soluble polymer poly. Sphere crystallinity was characterized by XRD and SEM. On the basis of the experimental results, we proposed a possible mechanism to elucidate the formation of ZnO spheres.
Ferroelectric Domain Patterns Writing in PbZr0.3Ti0.7O3 Thin Films Using a Biased Sweeping PFM Tip
Authors: Yin Yong , Liu Li Ming , Mo Jing Hui
Published: June 2012

(111) preferred orientated ferroelectric PbZr0.3Ti0.7O3 (PZT) thin films with grain size of 300-500 nm, and root-mean-square (RMS) roughness of 2.927 nm were prepared by using radio frequency magnetron sputtering process. Piezoresponse force microscopy (PFM) has been used to write complex ferroelectric domain patterns using a biased sweeping PFM tip. Subsequent imaging of switched domain patterns was performed. The stabilization of the written domain was investigated by inverse biased tip scanning. The results indicate that these films are suitable for submicron scale domain writing, and the resulted domain are affected by the condition of crystalline boundary. The written domain is superficial and can be easily erased by inverse tip-applied electric field
Properties of InSnTaO Films as Transparent Conductive Oxides
Authors: Zhang Bo
Published: June 2012

InSnTaO films were deposited on glass substrates by magnetron sputtering with ITO target and tantalum target. X-ray diffractometer (XRD) and atomic force microscopy (AFM) revealed that InSnTaO films had better crystalline structure, larger grain size and lower surface roughness than ITO films. Ta-doping remarkably improved the optical-electrical characteristics. The films showed obvious Burstin-Moss effect with substrate temperature. Moreover, the direct transition model showed wider optical band gap of InSnTaO films than that of ITO films. As a result, InSnTaO films prepared by co-sputtering revealed better comprehensive properties than traditional ITO films.
Preparation and Characterization of SiO2-WO3 Composite Aerogel by Ambient Pressure Drying Process
Authors: Shi Fei , Bai Lu Nan , Liu Jing Xiao , Dong Xiao Li , Luo Jia Yu , Chen Chen , Zhang Xiu Fang
Published: June 2012

Using sodium tungsten and industrial water glass as raw materials, SiO2-WO3composite aerogels were prepared by ambient pressure drying process. The hexamethyldisilazane(HMDSZ)/hexamethyldisiloxane(HMDSO)/hexane mixing solution was used to modify the sol-gel-derived SiO2-WO3wet gel. The microstructure, morphology and pore characteristics of the obtained SiO2-WO3composite aerogels were investigated by XRD, SEM, FTIR and BET N2 adsorption-desorption analysis. The adsorption/photocatalytic degradation for Rhodamine B of SiO2-WO3composite aerogel was investigated. The results indicate that mesoporous SiO2-WO3composite aerogel with specific surface area 660.8 m2/g and pore volume 1.94 cm3/g could be prepared by using HMDSZ/HMDSO/hexane mixing solution to modify the wet gel. The obtained SiO2-WO3composite aerogels have good adsorption/photocatalytic degradation for Rhodamine B than that of pure WO3aerogel.
Experimental Research for Heavy Metal Lead and Zinc Smelting Wastewater by Electroflocculation
Authors: Fan Ling Dong , Xu Xiao Jun , Wang Gang , Yang Jin Jin , Lei Tian , Han Zhen Yu
Published: June 2012

In this paper,author use electroflocculationt to deal with heavy metal lead and zinc smelting wastewater,disiscussing the impact of electroflocculation to heavy metal removal rate under different pH,electrolytic voltage,electrolysis time ,plate spacing conditions. The results show that: heavy metal removal rate achieve the best effects when the situationgs is that pH is 11, electrolysis voltage is 2v, electrolysis time is 30 min , plate spacing is 1.2cm.Cd removal efficiency is 100% ,99.92 % removal efficiency of Zn,95.53% removal efficiency of Pb and 98.64% removal efficiency of Cu
Removal of COD from Piggery Wastewater Using a Lab-Scale UASB Reactor
Authors: Yan Fei , Zuo Jin Long , Qiu Tian Lei , Wang Xu Ming
Published: June 2012

It took 55 days to start up a lab-scale upflow anaerobic sludge blanket (UASB) reactor at ambient temperature 27-28 oC by using the synthetic wastewater, and piggery wastewater was used as the influent after the reactor start-up. From day 120 onwards, COD removal efficiency maintained in the range of 85% to 95% with 6.79-9.66 kg COD/ (m3•d) of volume loading, and the effluent COD concentration ranged between 400 mg/L and 600 mg/L. Granular sludge formation was observed in the reactor after 40-day operation, and the sludge diameter reached 2-4 mm in the 120 day-old reactor. The pH changes in the influent had little influence on COD removal from piggery wastewater using the UASB reactor.
Heavy Metal Pollution in Suzhou Urban Soils and its Health Risk Assessment
Authors: Huang Shu Ling , Li Qi , Xu Dong Sheng
Published: June 2012

An intensive investigation of 55 samples which have been collected from different functional areas was conducted to study the heavy metal distribution in urban soils of Suzhou and to construct the health risk assessment model. From the results of X-Ray fluorescence spectrometer, and comparison with the background of Anhui soils, the average concentrations of Cu、Zn、Pb and Cr were in higher level, indicated that the soils in Suzhou urban has already been polluted by Cu、Zn、Pb and Cr to a certain extent; Concentrations of heavy metal in industrial district, business district and bus station are relatively higher, Cu、Zn、Pb have close connection with transportation and industrial production, Cr mainly comes from the contamination of industrial production, and Ni is under the double influence of household and traffic pollution; Hazard indexes and non-carcinogenic risk for heavy metals in urban soils are below the limits of harmful levels, which represent the lower health risk in Suzhou City.
Effect of CMCS on the Thermal Stability of Natural Rubber
Authors: Chen Tao , Gui Hong Xing , Wang Yong Zhou , Huang Hong Hai , Zeng Ri Zhong , Huang Mao Fang
Published: June 2012

Effect of CMCS on the thermal stability of natural rubber(NR) was studied by means of TG-DTG,and the decomposition activation energy(Ea) was calculated through Flynn–Wall–Ozawa (FWO) method in the paper.The results showed that the Ea of NR mixed with CMCS was higher than that of ammonification NR,and the thermal stability of NR improved with increasing the addition level of CMCS.
Emission Characteristics of Gaseous Pollutants in an On-Board Test of a Diesel Passenger Car Fueled with Biodiesel
Authors: Lou Di Ming , Shao Cong , Zhi Yuan Hu , Tan Pi Qiang , Li Wen Shu
Published: June 2012

In this paper, emission characteristics of gaseous pollutants in an on-board test are studied by using OBS-2200 system in a Passat diesel passenger car, which was fueled with country Ⅳ diesel, pure biodiesel and different blends of country Ⅳ diesel-biodiesel, the blend ratios of which were 5%,10%,20%,50%. The results indicate, compared with gaseous pollutants of highways in urban and rural areas in Shanghai, gaseous pollutants of main and secondary roads in urban areas and rural areas in Shanghai are relatively not satisfying and, compared with country Ⅳ diesel, integrated emissions of CO, CO2, THC in the whole experimental test are reduced when different ratio blends of biodiesel have been used, meanwhile the integrated emission of NOx is increasing.
Effects of Inorganic Ions on the Heterogeneous Catalytic Degradation of Orange II
Authors: Zhu Shao Bo , Shi Peng Hui , Ren Jin Tao , Li Deng Xin , Xu Shi Hong
Published: June 2012

A heterogeneous catalytic system, which was based on sulfate radicals activated by supported cobalt oxide (Co3O4), was employed to degrade Orange II. Four kinds of inorganic ions including H2PO4-、HCO3-、NO3-、Cl- were introduced into the reaction. The effect of inorganic ions on the degradation rate of Orange II was systematically studied and assessed.
Monodispersion Soot Position Interference Mechanism on Measuring the Soot Concentration Using the Scattering Method
Authors: Zhao Yan Jun , Zhang Hai Tao , Zhao Xuan , Qu Bin
Published: June 2012

The soot emission concentration of the stationary pollution sources is one of the important measurement parameters of the atmosphere pollution CEMS. The monodispersion soot position can affect the original measurement light intensity and reduce the soot concentration measurement accuracy. To reduce the monodispersion soot particles position interference, the monodispersion soot particles position interference mechanism is studied in this paper. The difference angle range scattering light intensity of the monodispersion soot is calculated. The numerical simulation results show that the difference soot position can reduce the soot concentration measurement accuracy. The solution method is brought out and can improve the measurement accuracy.
Dynamic Analysis on Change and System Simulation of Food Production Materials in the Northern Anhui Province
Authors: Su Hai Min , He Ai Xia , Gao Yao
Published: June 2012

According to statistical and survey data at provincial levels, trend of Grain per unit area yield materials and its influencing forces in Northern Anhui Province during the last 20 years were discussed in this article. It was found that: since 1991, the total Grain per unit area yield materials availability took on increasing, but regional difference was very obvious in Northern Anhui Province; Suzhou City and Huaibei City with higher rate took on increasing as a whole, inverse to the lower Grain per unit area yield materials in Fuyang City, Bengbu City and Huaian City. Grey correlation analysis showed that the most important factors of Grain per unit area yield materials were the effective irrigated area, net income of farmer per capita and financial support to agriculture. However, the influence of natural disaster and pesticide application amount should not be ignored.
Preparation of Silicone-Modified Polyester Resin for Colored Steel Sheet
Authors: Yi Qin , Fan Hui Li , Liu Jie Min , Jia Pei Pei
Published: June 2012

The coating resources for colored steel sheet using silicone-modified polyester resin were prepared and developed in order to fit rapid development of colored sheet industry in this paper. The dose of crosslink agent, pigment binder ratio, pigment, the dose of catalyst dispersant, antifoaming agent, surfactants were investigated by testing the performance of adhesion, rigidity (H) and MEK-resistance. Compared with commercially available resin SM3911, the flexibility of the coating has been gradually improved, T bends finally reached 0T, and can made colored steel sheet having an excellent processing performance. In addition, hardness also reached 4H, and wipe-resistant reached 105 per time.