bluuebunny/crossref_metadata_2025 huggingface dataset:
Pareto Optimization of Electro Discharge Machining of Titanium Nitride-Aluminium Oxide Composite Material Using Genetic Algorithm
Authors: Mitra Souren , Sarkar Soumya , Paul Goutam , Bhaduri D. , Biswas Sampad
Published: July 2011

Titanium nitride-aluminium oxide (TiN-Al2O3) is a new generation ceramic composite material having potential for many industrial applications as it possess high resistance to thermal degradation, anti-wear and anti-abrasion properties. In the present research the characteristic features of EDM process are explored through Taguchi methodology based experimental studies with various process parametric combinations. Finally the process has been optimized using Genetic algorithm based Pareto optimization search. From Pareto optimal search the technology guideline for optimal parameter settings have been selected. The present research approach is extremely useful for maximizing the productivity while maintaining the geometrical accuracy within desired limit.
Synthesis of Hollow Carbon Hemispheres in the Magnesium Carbonate-Metallic Li System with the Help of CHBr3
Authors: Chen Jia Fu , Chen Zhi Min , Cao Yan , Xu Qun
Published: July 2011

Hollow carbon hemispheres (HCHs) were synthesized at 500 oC in the magnesium carbonate-metallic Li system with the help of CHBr3. The product was characterized by X-ray diffraction (XRD), transmission electron microscope (TEM) and field emission scanning electron microscope (FESEM). XRD and electron diffraction (ED) pattern results showed that HCHs were graphite phase and polycrystalline. By FESEM and TEM observation, the diameters of the HCHs were in the range of 200-900 nm. The shell of the HCHs was single-layer and their thickness was about 31 nm. The formation mechanism of HCHs with the help of CHBr3 was discussed. Besides, the effect of reaction temperature and dosage of CHBr3 on the morphology of HCHs was studied.
Effects of Fineness on Activity Character of Fly Ash
Authors: Luo Zhong Tao , Ma Bao Guo , Yang Jiu Jun , Liu Jun Xia
Published: July 2011

The hydrated character of cement paste with fly ash was studied, through the methods of compressive strength, non-evaporable water content, reaction degree of fly ash and micro-analysis. The results indicated that the chemical activity of fly ash was an accumulative change process under this test condition. The starting point of chemical reaction of fly ash was nearby 28 days. In front of 28 days, the chemical activation of fly ash was not wakened, and the compressive strength of cement pastes with fly ash at this age was mainly from multiplex effects of cement hydration and the micro-aggregate effect, granule morphology effect and pozzolanic effect of fly ash.
Ultra Convenient Synthesis of Lanthanide Based Magnetic-Fluorescent Hydrogels for Multimodal Cellular Imaging
Authors: Chen Bing Di , Li Yong Yong , Zhang Bing Bo , Zhang Bo , Wu Yu Lian , Shi Dong Lu
Published: July 2011

A simple approach has been developed to synthesize lanthanide based multifunctional magnetic-fluorescent hydrogels for cellular imaging via MRI and optical imaging synchronously. The multifunctional hydrogels are prepared by covalently conjugating gadolinium and europium chelate with biocompatible chitosan. The room temperature photoluminescence (PL) spectrum shows that the hydrogels have a strong PL emission, which is characteristic of Eu3+ transitions from the excited 5D0 to 7FJ levels. Moreover, in vitro magnetic resonance imaging (MRI) analysis shows that the hydrogels exhibit powerful T1-weighted MRI signal in water. As a result, the hydrogels combine magnetic and fluorescent properties and can be expected to act as a promising multimodal MRI/optical imaging probe.
Shear Behavior of CFRP Prestressed Concrete Beams without Stirrups
Authors: Wang Zuo Hu , Du Xiu Li , Liu Jing Bo
Published: July 2011

Five beams were tested up to failure to study the shear behavior of concrete beams prestressed with fiber reinforced polymer (FRP). Different factors were taken into consideration: the type of prestressing tendons and the shear span ratio. The shear failure modes and the influence of different factors on shear behavior were investigated in details. The test results showed that FRP prestressed beams without stirrups had two shear failure modes: diagonal compression failure and shear compression failure; the shear span ratio was the most important factor to determine the failure mode and shear capacity of the prestressed beams. The shear capacity of concrete members prestressed with FRP tendons was lower than that of concrete beams prestressed with steel cables.
Modification of L Zeolite and Hydroisomerization of N-Dodecane over Pt/L Catalysts and Pt/SAPO-11 Catalyst
Authors: Han Li , Xu Jing Jing , Wang Qin , Wei Dong Yan , Wang Jian Feng , Xu Jun , Chen Yi Liang , Zhang Rui
Published: July 2011

We have presented the synthesis and modification of L zeolite, and have further investigated the hydroisomerization of n-dodecane over the Pt/HL catalyst in a fixed bed reactor by changing reaction parameters such as temperature and pressure, respectively. The results showed that the combined use of ion-exchange, critric acid treatment and hydrothermal treatment could improve the Si/Al ratio of L zeolite dramatically while the high crystallinity was held. The Pt/HL catalyst showed higher stability, good regeneration property, catalytic activity and selectivity to the branched isomers under relatively low reaction pressures compared to the Pt/SAPO-11 catalyst.
Synthesis and Safety Evaluation of a New Enteric Coating Material
Authors: Lai Xiao Lin , Deng Hua Jiang , Wang Zong Hua , Guo Jian Hua
Published: July 2011

A series of styrene-maleic anhydride (SMA)-ethanol polymers with different degree of esterification (DE) were synthesized, they had different pH-sensitive values and could be used as enteric coating materials. SMA-ethanol (DE50%) was used as the model compound to evaluate the safety as an enteric coating material, the results of acute toxicity tests showed that there was no acute toxicity. The reaction condition such as catalysts, catalyst amount, reaction time and temperature were also evaluated, the results indicated that the triethylamine (TEA) was the optimal catalyst, when methyl ethyl ketone (MEK) was the solvent, the catalyst amount was 15-20%(molar percent), the reaction at 80 OC for 8h could gain the highest conversation.
Morphology of a Functional POSS/Bismaleimide Nanocomposite and its Monitoring Phase Separation with a Thermoplastic Blend
Authors: Hu Xiao Lan , Yu Rong Lu , Liu Gang , Yi Xiao Su
Published: July 2011

A functional polyhedral oligomeric silsesquioxane (POSS) with eight vinyl groups was used to fabricate a POSS/bismaleimide (BMI) nanocomposite as a potential matrix for RTM processing, and its blend with a thermoplastic polyether-ether ketone (PEK-C) was prepared. A self-designed optical microscope with a hot stage has been performed to monitor phase separation process of the thermoplastic-thermoset blend. The phase separation and final morphology of POSS/PEK-C/BMI system were characterized in the research. SEM pictures of POSS/BMI nanocomposite exhibit that the vinyl POSS has significant improvement in toughness of the materials, and its eight vinyl groups lead to chemical bonding interface with BMI resin in the nanocomposite. Results of optical microscope indicate that the corporation of POSS in PEK-C/BMI blend postponed phase separation process. The morphologies show that POSS/PEK-C/BMI systems have a similar phase separation structure with PEK-C/BMI blend.
Pristine Functionalized Carbon Nanotubes from Ethanol Flame as a Reinforcement in Polystyrene Composite
Authors: Qi Xiang , Ren Long , Hao Guo Lin , Li Jun , Fang Peng Fei , Pan Chun Xu , Zhong Jian Xin
Published: July 2011

The surface chemistry of carbon nanotubes (CNTs) synthesized from ethanol flame was investigated using FTIR, TG, XPS and TEM. It is found that the CNTs inherently have functional groups on their surfaces without any post-treatment. SEM results confirm that the pristine F-CNTs can be well dispersed in the polystyrene matrix.
Seismic Performance of Corroded RC Circular Columns Strengthened with Hybrid Fiber Reinforced Polymers
Authors: Li Jian Hui , Chang Zhao Zhong , Li Ying , Deng Zong Cai
Published: July 2011

In order to research the seismic performance of strengthening corroded RC circular columns with hybrid Fiber Reinforced Polymer (FRP) sheets, ten RC columns were tested under cyclic load and constant axial. Test phenomena are described, experimental data are analyzed and compared, and the effect of the axial compression ratio and stirrup reinforcement ratio on the seismic behavior is studied. Results show that the corrosion of steel bars may introduce the brittle failure for RC columns in some extent, and the seismic performance can be enhanced effectively for RC columns strengthened with hybrid FRP. Ductility and energy dissipation are improved significantly, but the bearing capacity can be only increased within limits. When the degree of rebar corrosion is 5.1%, the maximum displacement ductility factor and accumulated energy dissipation of the strengthened corroded columns are 123% and 12.5 times larger respectively than that of the un-strengthened corroded columns.
Synthesis and Characterization of Tungsten Micro-/Nanoparticles Using Tungstate-Based Inorganic-Organic Hybrid Nanobelts as Precursors
Authors: Chen De Liang , Wen He Jing , Zhang Rui , Li Xin Jian
Published: July 2011

Tungsten (W) micro-/nanoparticles were synthesized by thermally treating tungstate-based inorganic-organic hybrid nanobelts with a lamellar structure or the mixture of WO3 nanoplates and C6H12O6 in an Ar flow at 1000-1200 oC for 2-6 h. Phase compositions and morphologies of the W particles obtained were characterized by powder X-ray diffraction and scanning electron microscope.
Study of Electrochemical Inhomogeneity of Zinc in Zinc/Steel Couple during Galvanize Corrosion by Wire Beam Electrode
Authors: Zhang Da Lei , Jin You Hai , Li Yan , Tang Xiao
Published: July 2011

The localized electrochemical characteristics of the anodic metal within a zinc/steel couple immersed in seawater was investigated using an Wire Beam Electrode(WBE) composed of 9 zinc wire sensors together with 112 mild steel ones. The results showed that potential and current density distributions of zinc wires were inhomogeneous; main anodic area transferred from the zinc wires adjacent to steel wires to those farther away from zinc/steel interface gradually; besides, some zinc wires behaved as secondary cathodes. This electrochemical inhomogeneity of zinc might mainly be ascribed to the dissimilar distance between zinc and mild steel wire sensors, and their surface electrochemical state as well.
Fabrication and Characterization of Ceramic Floor Tiles from Coal Gangue
Authors: Xu Hong Liang , Chen De Liang , Wang Hai Long , Lu Hong Xia , Zhang Rui , Guan Shao Kang , Liu Qin Fu
Published: July 2011

Coal gangue was used as the main material to fabricate floor tiles in this paper. The mixture of coal gangue, quartz, feldspar and bentonite, with the weight percentage of 55, 20, 20 and 5, was wetly milled, dried, and then pressed into green compacts. The obtained compacts were sintered at 1180-1240 oC and the floor tiles were obtained. The obtained tiles were characterized by XRD, SEM, linear shrinkage, water absorption, bulk density and flexural strength. The results indicate that the tiles were composed of glassy phases, quartz and mullite phases. The phase composition, microstructure, physico-mechanical properties of the samples change with the sintering temperature. The tile sintered at 1220 oC achieves the linear shrinkage, water absorption and bulk density values of 6.18%, 0.16%, 2.45 g/cm3, respectively. Its flexural strength reaches the maximum of 92.0 MPa.
Experimental Study on Lump Iron Ores as Sintering Hearth Layer
Authors: Ying Zi Wei , Yu Jing Kun , Xu Li Xian
Published: July 2011

In the laboratory condition, a series of experiments were carried out in a sintering pot when Hamersley, Niuman and Hainan lump iron ore were used as sintering hearth layer instead of the recycled sinter. The results show that the sintering productivity is increased by 1.3%, 2.6 % and 13.2 %, and the fuel consumption is decreased by 4.4%, 2.0 % and 6.6 %, respectively. Meanwhile, the tumbler strength and the reduction disintegration index of sinter are also improved. During sintering experiments, the crack of two lump iron ores used as hearth layer didn’t happen. Through using the new technology, the combined water and the sulfur impurity were effectively decreased in the sintering products. Furthermore, the micro-porosity of the sintering products was found to increase, which will contribute to improve the metallurgical properties of sinter.
Zn0.9Co0.1O/ MCM-41 Composite: Synthesis and Magnetism
Authors: Liu W. B. , Zhang Ying Tang , Li X. X. , Liu S. X. , Chen Z. Y. , Che P.
Published: July 2011

Cobalt doped zinc oxide diluted magnetic semiconductors (DMSs) were assembled in MCM-41 template by sol-gel method. Samples were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), physisorption, as well as the magnetism measurement. It was found that the wurtzite symmetry of the MCM-41 pores was not changed while the pore diameter became smaller after the DMSs deposited into the pores. The Zn0.9Co0.1O-MCM-41 presents a superparamagnetic behavior between 80K and 300K, while Zn0.9TM0.1O-MCM-41 (TM=Mn, Fe, Ni) samples are paramagnetic at the same temperature range.
Study of Rural Small Hydropower Development and Reform Strategy
Authors: Al Xiao Juan , Bai Liang
Published: July 2011

Small hydropower is a kind of clean and non-carbonate energy, which is rich in resources and environmentally friendly. Not only is the small hydropower an important part of China's strategy of sustainable development, but also it is the basic national policy of long-term adherence. This article attempted to expound China's small hydropower investment system and establish the right to compensation for the use of small hydropower transfer market allocation mechanism through the development of Chinese small hydropower Analysis. In this paper,the establishment of many ways of electricity tariff about small hydropower, the financing policy and water resources were discussed. Furthermore, compensation mechanisms for the use right transfer and the external compensation mechanism of hydropower development projects were reviewed. The obtained result was the following:Not only is reform of rural small hydropower in China the need of small hydropower development, but also it is essential guarantee of new countryside construction and sustainable development.
Office System Design and Implementation Based on B/S
Authors: Li Ju , Tu Wei Yuan , Zhou Jian , Wang Xing , Zhang Wei
Published: July 2011

With the improvement of management and internet technologies, simple document management can not meet the requirements. This paper presents a framework for office automation system of network, It is applied to the school office automation. And it discussed some development techniques of the ASP. NET, which is applied to this system.
A Semantics Based Routing Scheme for Cloud Computing
Authors: Tang Wu Chu , Xie Jun
Published: July 2011

Each of tasks within the application depends on multiple datasets that may be distributed anywhere within the Cloud Computing. This paper defines the problem of scheduling distributed data-intensive application on to Gird resource and presents a formal resource and application model for the problem.
The Study on Metaphor and Interest of Graphic Design
Authors: Kang Lin , Li Cheng Mao
Published: July 2011

All in all, graphic-design has a wide use in newspapers, magazines, books, symbol, advertisements, packing and many other media. It is to improve functional and aesthetic identification of the information and embody the aesthetic characteristics of brevity, which is a rare element in modern design. When Mr. Lei Guiyuan discussed the image Taichi in his book The First Exploration of Chinese Design Method, he put forward an important viewpoint that why the design is beautiful is that not only does it has the beauty in essence, but also has beauty in form.
Forest Fire Monitoring System Based on Image Analysis
Authors: Li Xiao Ling
Published: July 2011

Large forest fires are very hazardous and often cause greater losses. However, due to the vast coverage of forests and the environmental complexity, monitoring which relies on sensor detection of direct contact almost cannot achieve its monitoring function. In this paper, the author proposes that long-range images will first be acquired and so do the images of a larger dynamic range of the observed region, then an embedded video monitoring system will be formed realizing a dynamic monitoring. With the techniques of dynamic image analysis and processing, dynamic image alarms and control signals can be obtained and such videos will be transmitted over the Internet in real-time. Experiments shows this system respond to fires with a fast speed of less than 20ms and the control of fire is highly accurate with a dynamic image area that is less than 1% of the background area.
Application of 3D Animation Technology in Movie Art Design
Authors: Li Meng , Huang Xin Yuan , Zheng Tie Jun
Published: July 2011

After1970s, digital technology was introduced into movie making industry, filling new elements to movie industry, expanding expression space into a new world. This article is purposely, under the above circumstance and background, to research on function of 3D animation technology in art design of movie, to make a conclusion on development trend of movie art design.
Study on Security Management-Oriented Business Process Model
Authors: Yu Zhi Wei , Ji Zhong Yuan
Published: July 2011

Information systems security is important for the day-to-day operations of business process. The current business process modeling can’t describe all the factors that the security management concerns on. A tri-layer business process model is presented in this paper from agent layer, activity layer and asset layer. This tri-layer model, which is based on business process and is convenient for security requirements analysis, expresses the relationship between activities, agents and assets. The essence that information systems are used to support the business process to fulfill the organizational functions is expressed in this tri-layer model. Such elements as assets, personnel, business activities the security management cares about are included in this model, which forms the basis and communication platform of security management. Finally, the pragmatic value of this tri-layer model is validated through a case of security management project of a manufacturing enterprise in China.
A Revised BMM and RMM Algorithm of Chinese Automatic Words Segmentation
Authors: Qu Hui Yan , Zhao Wei
Published: July 2011

The principle of Maximum Matching Method (MM) is “First Matching the Maximum Word-Length”. At present, however, the method of Maximum Matching Method (MM) does not incarnate the principle of “First Matching the Maximum Word-Length” well. So in order to incarnate well, a revised BMM and RMM Algorithm of Chinese automatic words segmentation is put forward, and its algorithm is also given.
The Role of the Cities in the Western Economic Development
Authors: Zhao Guo Jie , Jia Li Jie , Ma Tie Feng
Published: July 2011

Based on an annual panel for the western cities in China and system GMM method, this paper build the spatial econometric models to analyze if the same factors have the different impacts between the capital cities and the prefecture-level cities on their economic development. The results show that the capital cities more rely on their development path and less dependent on other cities of the same level; while the prefecture-level cities on the contrary.
Scene Shortest Path Solutions Based on the Breadth First Search
Authors: Wen Jing Hua , Jiang He Ling , Zhang Mei , Song Jun Ling
Published: July 2011

Breadth first search is one of the most convenient traversal methods of a graph, and the shortest path problem of the city map is a kind of traditional data structure problems. It was researched and analyzed that the breadth first search traversing algorithm which adopting the adjacency matrix as its storage structure, in VC++6.0 environment, the shortest path problem of a city map was solved with breadth first search of the graph based on the queue, and its complete program was realized in the machine. Experimental results show that taking the breadth first search to solution city shortest path is an easy to understand and feasible scheme, so it has certain popularize value.
Main Converter Fault Diagnosis for Power Locomotive Based on PSO-BP Neural Networks
Authors: Su Hong Sheng
Published: July 2011

To aim at conventional BP learning algorithm of its flaws, say, low convergence speed and easy falling into local extremum, and etc, during main converter fault diagnosis system for power locomotive, this paper proposed a novel learning algorithm called PSO-BP neural networks based on particle swarm optimization (PSO) and BP neural networks. The algorithm generated the two phases: one is that PSO was applied to optimize the weight values of neural networks based on training samples, the other is that BP algorithm was applied to farther optimize based on verifying samples till the best weight values are achieved. Eventually, a practical example indicates that the proposed algorithm has quick convergence speed and high accuracy, and is ideal patter classifier.
Research on Face Recognition Based on Pulse Coupled Neural Network
Authors: Wang Xin Cun , Liu Yu Min , Yue Kai Hua , Cheng Man
Published: July 2011

In Pulse Coupled Neural Network (PCNN), the conception of time series icon based on neural impulse oscillation realized face recognition by using average time series icon and average Euclidean distance. Simulations showed that the approach is effective and possesses better recognition effect for various faces and complicated expressions.
Study on Coordinate Information Generation Method of Interested Area in IMRT Inverse Planning System
Authors: Chen Zhen , Li Guo Li
Published: July 2011

In inverse planning system of Intensity Modulated Radiation Therapy (IMRT), the coordinate of interested area (target, organ at risk) is the necessary information for optimization algorithm. This paper analyzes several classical region filling algorithms firstly. Based on the VTK toolkits, Bezier curve algorithm, and the improved Watershed algorithm, a method using interactive delineation tool to save the coordinate information of interested area is realized. The information in the delineated area is accurately extracted by the method.
Path Planning Based on Warehousing Intelligent Inspection Robot in Internet of Things
Authors: Wei Lian Suo , Guo Yuan , Dai Xue Feng
Published: July 2011

A path planning approach using combination of the Internet of Things and vague set of multi-objective decision-making was presented aiming at mobile robots in structured environments. The information of environment constrains and path length was integrated in the fitness function which was computed to sort scores of function values in order to realize path planning of mobile robot. Finally, it is proved by computer simulations that the algorithm is rational and can be used in real-time path planning of mobile robot.
A New Type of Algorithm for the Variational Inequalities on Supply Chain Economic Equilibrium Model
Authors: Wang Lei
Published: July 2011

In this paper, we consider an algorithm for variational inequality(VI) problem on the supply chain network equilibrium model, which is established by Dong et al.. To this end, we first develop a global error bound for VI, which can be taken as an extension of the existing global error bound for VI, then present the convergence analysis of the method for solving the variational inequalities, and the convergence rate are also given under same conditions.
Dynamic Modeling and Simulation on Ordering Strategy of Five-Stage Supply Chain
Authors: Li Ying Zi , Zhang Xiao Dong
Published: July 2011

In order to describe complexity and dynamics of supply chain network, the simulation model of a five-stage complex supply chain networks was built firstly in this paper. Second, based on the model, comparative simulation towards the inventory level and the bullwhip effect under economic order quantity (EOQ) strategy and the minimum and maximum (s, S) strategy were carried out. Simulation result shows that, enterprises in different stages with different ordering strategies will have significant effect on supply chain performance. Supply chain enterprises in various stages should adopt reasonable ordering strategy in lights of their own characteristics.
A Computer Software on Diffusion in Solid
Authors: Luo Shi Yong , Xu Wen Cai , Huo Li Xia , Zhang Xin Lin , Zhang Jia Yun
Published: July 2011

A computer software on solid/solid reaction kinetics, KinPreSSR, is one of subsystems in the software, Intellectualized Database Management System on Kinetics of Metallurgy (IDMSKM). KinPreSSR is a Windows application developed using Visual C++ and FoxPro, and includes two main modules, “DIFFUSION” and “REACTION”. The ‘DIFFUSION’ module includes two sub-modules of “database management system (DBMS)” and "Evaluation & prediction". The “DBMS” deals with the diffusion coefficients gathered from reported documents and the data evaluated according to some rules, besides, it can provide users with retrieval of diffusion coefficients. Based on the solutions to the Fick’s first law and the Fick’s second law in the four typical critical conditions, the "Evaluation & prediction" sub-module gives the predication of concentration distribution after diffusion process in solids or computation for diffusion coefficient.
New Criteria on Impulsive Stabilization and Synchronization of Delayed Unified Chaotic Systems with Uncertainty
Authors: Chen Yuan Qiang
Published: July 2011

This paper investigates stability and synchronization problems for delayed unified chaotic system with parameter uncertainty by employing the Lyapunov function method and matrix inequality techniques. Sufficient conditions for their asymptotical stability and synchronization are developed under given impulsive controllers. Finally, the validity of the obtained results is shown by a numerical example and its simulation.
A New Method to Detect P-Wave Based on Quadratic Function
Authors: Zhou Nan Quan
Published: July 2011

The paper presents a P-wave detection algorithm based on fitting function in the optimal interval. In the algorithm we used quadratic function to fit the P wave by this means of least square method in every interval, which was shifted in local range. Then we found the optimal fitting interval of P wave by comparing the error of fitting. Finally, we obtained the characteristic points of P wave by using the fitting function to fit P wave in the optimal interval. The performance of the algorithm tested using the records of the MIT-BIH database was effective and accurate. The algorithm on the wide range of heart rate variation and small P wave of ECG P-wave detection has good effect. Also it has some capabilities of anti-interference, particularly the false dismissal probability is quite low.
Application of Wireless Sensor Network for M2M in Precision Fruits
Authors: Fang Li Gang , Liu Zhao Bin , Li Hong Li , Gu Cai Dong , Dai Min Li
Published: July 2011

The study introduced foreign and domestic situation of wireless sensor network technology in precision agriculture in detail. Applications of wireless sensor network are universal in foreign precision agriculture, however in its beginning stage in domestic agriculture. The function of domestic system based on wireless sensor network is usually positioning measurement and processing of agriculture elements, which does not meet final requirement of precision agriculture. The study designed a universal wireless sensor network for M2M combined intelligent communication technology and big agriculture machinery. The key technologies of wireless sensor network for M2M include development plan of ISA SP100.11a, spectrum technology based on DSSS, network technology based on net routing and low power radio frequency design, which can meet the real-time character, reliability, robustness and low energy consumption requirement of wireless communication in precision fruits. Moreover, the study presented several typical applications in precision fruits (including farming machine, water-saving irrigation machine and picking machine). With development of precision fruits in breadth and depth, integration application of wireless sensor network would have a widen prospect in the future.
Computational Method Research of the Salvo Catching Probability for Wake-Homing Torpedo Based on Compendium Preparation
Authors: Jiang Tao , Wu Di Xiao , Rui Li
Published: July 2011

Under the condition of compendium preparation of shooting data，based on the correlation of each torpedo catching target during torpedo salvo, a computational method of catching probability for wake-homing torpedo salvo is proposed. Then a computational model of catching probability for wake homing torpedo’s double salvo is established. By using existing data，the simulating results show that the model proposed in this paper can optimize the model of the fixed lead angle for wake-homing torpedo salvo.
Anonoymizing Methods against Republication of Incremental Numerical Sensitive Data
Authors: Zhang Xiao Lin , Yu Jie , Tan Yue Sheng , Liu Li Xin
Published: July 2011

Privacy protection for numerical sensitive data has become a serious concerned in many applications. Current privacy protection for numerical sensitive data base on the static datasets. However, most of the real world data sources are dynamic, and the direct application of the existing static datasets privacy preserving techniques often causes the unexpected private information disclosure. This paper anaylisis various leakage risks of republication of incremental numerical sensitive data on numerical sensitive data, and proposes an efficient algorithm on anonoymizing methods against republication of incremental numerical sensitive data,The experiments show that this method protects privacy adequately.
Study on the Interference Ratio of Right-Turning Vehicles at Signalized Intersection under Mixed Traffic Environment
Authors: Lee Shan Shan , Qian Da Lin , Lin Dong Mei , Peng Zhao Yong
Published: July 2011

The objective is to describe the interference degree between motor vehicles and bicycles at signalized intersection. The interference degree was expressed by conflict delay. Via analyzing the microscopic actions of the motor vehicles crossing through the bicycle flow at a typical two-phase signalized intersection, a conflict delay model of the right-turn vehicle was proposed applying the gap acceptance theory and traffic wave theory. The model was verified and compared with the existing conflict delay models. The result showed that the proposed model is stable and suitable for the condition of unsaturated to calculate the conflict delay of right-turn vehicle. Sensitivity of the conflict delay model with respect to the flow rate of the bicycle and the width of the bicycle lane was analyzed. It showed that the increase of the width of the bicycle lane within limits could reduce right-turning vehicle’s conflict delay effectively when the motor vehicle’s flow rate was higher and the bicycle flow rate was varying in a certain range.
Consistent Extension of Dynamic Knowledge Updating in the Multi-Agent System
Authors: Wu Mei Hong
Published: July 2011

In this paper we explore the use of dynamic epistemic default logic to offer a natural way of communication policies for the management of inter-agent exchanges in the multi-agent systems. We firstly focus on the acquisition of the extension in the dynamic epistemic theory based multi-agent system when its background set absorbing new information constantly, then we add the constrained default sets to restrict the agent's inference behavior and manage to obtain the extension of constrained epistemic default logic theory via default reasoning. We also discuss the characteristic of the dynamic updating when agent meets incompatible knowledge in the logical framework of multi-agent systems and finally we proved the related theorem for knowledge updating.
The Application of Data Mining in GIS
Authors: Fu Chun Chang , Zhang Nan
Published: July 2011

The spatial data mining is an important branch of data mining, this paper introduced the technology of spatial data mining based on GIS, the spatial data mining and the GIS integration of the steps and main mode are described. Research oriented GIS spatial data mining framework structure and basic flow, points out the data mining technology in GIS application of unsolved problems and development direction.
Takeoff Analysis and Simulation of a Small Scaled UAV with a Rocket Booster
Authors: Liu Bo , Fang Zhou , Li Ping , Hao Chuan Chuan
Published: July 2011

This paper analyses the takeoff process of a small scaled UAV (unmanned aerial vehicle) with a single rocket booster. Because the thrust provided by the rocket booster is 10 times as large as the thrust provided by the engines, the effects caused by the boosting rocket on total mass, compound centre of gravity and inertia can not be neglected and are all considered. The inertia of the boosting rocket is calculated by the means of finite element method. Based on the analysis, a nonlinear dynamic model of the UAV is built. Several simulations with different takeoff parameters are conducted to test the takeoff performance. By analyzing simulation results, the acceptable range of boosting angle is investigated.
Research of Digital Watermark Algorithm Based on Vector Graphics
Authors: Liu Yi Jun , He Xiao Man , Feng Dan , Fang Yu
Published: July 2011

Through the in-depth study of the existing digital watermark and vector graphics, from the characteristics of vector graphics itself, this paper presents a digital watermark implementation program based on vector graphics. This program is simple and feasible, has strong transparency, while having better robustness for the usual geometric graphics transformation and local modification attacks, so has high practical values.
Balanced Link Mapping in Multicast Service Overlay Networks Design
Authors: Qi Ning , Wang Bin Qiang , Wang Bao Jin
Published: July 2011

In order to address some deployment problems of IP multicast, the notion of Multicast Service Overlay Network (MSON) is proposed. How to construct MSON satisfying user’s demand efficiently under the situation of limited resources is a hot issue. In this paper we analyze a mathematics model of MSON construction. Under the objective of finding a virtual topology on top of physical network fulfilling all restrictions, and minimizing the cost of construction while keeping residual physical network the most balanced, an Integer Linear Programming model of the construction problem is depicted. In order to solve the problem efficiently, we propose a heuristics algorithm named BLMH. The efficiency of BLMH is evaluated by emulation experiment according to congestion link number under several scenarios.
Application Research of an Ultrasonic Ranging System Based on Educational Robot
Authors: Shi Bin Bin , Dai Min Li , Hu Zhi Fen
Published: July 2011

An educational robot platform of ultrasonic ranging system with a chip of MC9S08LL16 is presented. The application model is provided. The hardware circuit and software design process are given in detail. The causes of measurement errors are also analyzed,and the solving paths offered.
Research on Decision Tree Algorithm Based on Information Entropy
Authors: Du Ming , Wang Shu Mei , Gong Gu
Published: July 2011

Decision tree is an important learning method in machine learning and data mining ,this paper discusses the method of choosing the best attribute based on information entropy .It analyzes the process and the characters of classification and the discovery knowledge based on decision tree about the application of decision tree on data mining .Through an instance ,the paper shows the procedure of selecting the decision attribute in detail ,finally it pointes out the developing trends of decision tree.
An Algorithm Based on SURF for Surveillance Video Mosaicing
Authors: Guo Ke You , Ye Song , Jiang Hu Ming , Zhang Chun Yu , Han Kai
Published: July 2011

Using the SIFT algorithm for image mosaicing is the study hotspot in recent years, which is in a wide range of applications. SIFT algorithm of large amount of data and the time-consuming calculation method is not applicable in higher real-time video mosaicing. Firstly using SURF extracts feature points, secondly using the nearest matching method, RANSAC and least-square method solve the homography matrix between images, and finally using normalized covariance related function for obtaining the best effect of the homography matrix. The algorithm not only meets the accuracy requirement of parameter estimation, but also has smaller computation and faster speed than SIFT. It has proved that the algorithm used in this paper has good real-time performance, high accuracy and the ideal effect, which can satisfy the requirement of real-time mosaicking.
Optimization for Order-Picking Path of Carousel in AS/RS Based on Improving Particle Swarm Optimization Approach
Authors: Yang Wei , Li Xue Lian , Wang Hai Gang , Du Yu Xiao
Published: July 2011

In order to improve the access efficiency of small items storage system in Automatic Storage & Retrieval System, we use the particle swarm optimization approach to analyze and optimize its order-picking path by taking the carousel with double sorting tables as research object. Through the analysis of order-picking process, a mathematical model for solving optimization of order-picking path is brought forward, and a solving process based on particle swarm is designed aiming at this model and testing the effectiveness of this algorithm. The experimental simulation proves that PSO can be the fast, stable and effective solution to the optimization problem of order-picking path for double sorting tables, thereby improving the overall operation efficiency of Automatic Storage & Retrieval System.
Study on Multichannel Speech Enhancement Technology in Voice Human-Computer Interaction
Authors: Lu Ji Xiang , Wang Ping , Shi Hong Zhong , Wang Xin
Published: July 2011

As the primary research area of the Multimoda1 Human-computer Interaction, Voice Interaction mainly involves extraction and identification of the natural speech signal, where the former provides the reliable signal sources, which are analyzed by the latter. The multichannel speech enhancement technology is studied in this paper, aiming at the Voice Interactive. The simulated results show the effectiveness and superiority of the improved algorithm proposed in the paper.
The Research of WebGIS-Based Data Mining
Authors: Fu Chun Chang
Published: July 2011

Data mining provide us a technical found potential knowledge technical from mass data , the data mining technology is applied to GIS can promote GIS analysis of the data, so as to improve the ability of decision support level. WebGIS is traditional GIS space outspread, current network analysis and decision making support capability are low, the network-based integration of data mining and WebGIS can strengthen the analytical capacity.
A Modified TopDisc Algorithm in WSN
Authors: Du Zhi Guo , Hu Da Hui
Published: July 2011

TopDisc algorithm, one classic algorithm based on minimum dominating set, puts forward an effective method—approximate topology to set up network. TopDisc algorithm, which only needs local information, is a fully distributed and expandable network-control algorithm. The shortcomings of such algorithm are as follows: the algorithm expense is considerable without taking nodes residual energy into account. After a close analysis of TopDisc algorithm, the author proposes a modified algorithm. The modified algorithm makes good use of the nodes residual energy and reasonably chooses backbone node form heavily energy-loaded ones, which makes the energy evenly consumed, network topology stable and network lifetime endurable. Simulation data indicate that the modified algorithm is very flexible, making the energy evenly consumed, net work topology stable and network lifetime endurable.
A Model of Semantic Development Chain for Multidisciplinary Complex Electronic Equipments
Authors: Zhou Hong Gen , Tang Wen Cheng , Jing Xu Wen , Zhao Xiang Jun
Published: July 2011

During each period of modern complex electronic products development, the product is the core when organize and manage products.Completes the product development through coordination of different enterprise or department and then constitutes the complex electronic products development chain.This paper focus on the basic principle of complex electronic products semantic develop chain, definited its base elements and substantive characteristics; and established its work pattern, discussed its major function; finally, discussed the method and process of realizing semantic development chain model on the basis of the system structure of complex electronic products semantic development chain, then provided a logical foundation for the semantization integration and reusing of complex electronic products.
Design of an E-Learning Based on Service Software Bus
Authors: Chen Shan Xiong , Pen Mao Ling
Published: July 2011

Service Software Bus (SSB) is a service-oriented software bus. Based on theory basis of existing general software and combing with loosely coupled service-oriented architecture technology based on business standards, a kind of SSB was proposed and designed. Such kind of service-oriented software bus architecture was then applied into E-Learning teaching platform to conduct overall design of E-Learning teaching platform. Detail design of each functional layer of the teaching platform was also given
Design and Realization of Excellent Course Release Platform Based on Template Engines Technology
Authors: Zhou Cai Ying , Huang Long Jun
Published: July 2011

Apply PHP and MVC techniques and utilize the sophisiticated and easy-to-use facilities of template engines to realize the way to separate the template and code and build a universal release platform of excellent courses website. Therefore ,the non-profesional people can establish a satisfying course website in a quite short time, simplify the construction process and lower down the threshold of construction.
A Quick Algorithm for Attribute Reduction Based on Divide and Conquer Method
Authors: Hu Feng , Chen Xi , Wang Xiao Yan , Luo Chuan Jiang
Published: July 2011

Knowledge reduction is one of the most important contributions of rough set theory. High efficient algorithm is necessary for attribute reduction. In this paper, combining given attribute order and quick sort method, a heuristic algorithm for attribute reduction is developed. In this method, the objects in universe are divided into many small parts on the attributes by divide and conquer method, and different granules in different granular levels are obtained. The small ones can be processed quickly, so a fast heuristic algorithm for attribute reduction is proposed. Simulation experiment results illustrate the high efficiency of the improved knowledge reduction algorithm.
Wireless Sensor Network Summary
Authors: Zhao Bing Jie , Shi Chao Jian
Published: July 2011

This article introduced the wireless sensor network's definition and the structure, in view of the route, the energy, the cross level design and the security and so on the wireless sensor network's key question, have analyzed the domestic and foreign research development present situation, had pointed out further researches and develops the direction, and summarized the wireless sensor network model application.
Prediction of Lignin Content of Manchurian Walnut by BP Neural Network and Near-Infrared Spectroscopy
Authors: Qu Zhi Hua , Wang Li Hai
Published: July 2011

The lignin as a main component of wood, its content is an important chemical property of wood materials, it has an great effect on the other properties of wood and wood processing and utilization property. In paper making industry, the lignin content is a basis for developing pulp cooking and bleaching process. With the advantages of simple structure, plasticity and obviously superiority in nonlinear data processing, BP neural network and NIR for Manchurian Walnut wood lignin content prediction was investigated in this paper. The original spectra were collected and pretreated with the first derivative. Thriteen typical wave lengths were selected as BP network inputs to establish prediction model for wood lignin content. Model was validated using cross-validation approach. The prediction correlation coefficient (R) is 0.9233 while the root mean square error of prediction (RMSEP) is 0.0179. The results showed that using BP neural network in near-infrared spectroscopy calibration could significantly improve the model performance in order to rapidly and accurately predict wood lignin content.
Large-Scale Construction Equipment Joint Simulation Based on Multi-Body Dynamics Theory
Authors: Li Yu Hong , Nie Ling Xiao , Ding Shan
Published: July 2011

In order to ensure the efficiency and safety of construction process control and failure analysis for the large-scale construction equipment in water conservancy engineering, which is based on specified equipment for some real engineering practices, namely TC2400-tower belt crane, a multi-body joint simulation dynamical model is given in this paper. Then, the data flow and operational process of the model are analyzed. Finally, a case study based on ADAMS and SOLIDWORKS platforms is performed to verify the validity and rationality of the given model.
Algorithms Research in the Application of Lorenz Time Series Prediction
Authors: Miao Man Xiang , Gang Yi Jin
Published: July 2011

Prediction of Lorenz Chaotic Time Series is a vital problem in nonlinear dynamics .Support vector machine (SVM) is a kind of novel machine learning methods based on statistical learning theory, which have been provided an efficient algorithm thought in prediction of Chaotic Time Series. This paper combined SVM with neural network which based on the similarity of structure between SVM and RBF Networks, using SVM to obtain the centers of RBF Networks, then to predict the Lorenz Chaotic Time Series. Simulation results show that the effect is better than other methods.
Hardware Implementation of a Real-Time Data Processing Algorithm in Marine Engineering Data Acquisition
Authors: Ma Ling , Song Ke Zhu , Yang Jun Feng , Cao Ping
Published: July 2011

According to the architecture characteristics of the mass data acquisition system in marine seismic exploration, this paper designed a real-time data processing algorithm which can convert the collected time-sequence data to channel-sequence data. A hardware implementation of the algorithm based on FPGA+DDR SDRAM is developed to complete the whole conversion process. Here, FPGA is used to achieve time sequence data receiving, analyzing, preliminary processing and the interface to DDR SDRAM. Two DDR SDRAM’s are used in ping-pang mode to store time-sequence data and to cooperate with FPGA in realizing time-to-channel sequence data conversion. Test results showed that, after applying the algorithm to the FCI in high-precision marine seismic data acquisition and recording system, this arithmetic could realize caching collected data without redundancy and converting data from time sequence to channel sequence without dead time, besides, this algorithm also greatly improved the efficiency and reliability of data processing.
Top-K Strongly Related Projects Pairs Mining Algorithm Based on Threshold Estimate
Authors: Luo Ming Ying
Published: July 2011

This paper presents a candidate set in the case does not produce only scan through a database to extract the top-k strongly correlated item pairs method. Secondly, the structural information using a relational database, an appropriate estimate of the effective threshold, so that the results of K contains at least one project to effectively address the relational database on the Top-K strongly related to the problem of mining projects, and without Pay too much computational cost.