Simulation Systems in Advance Equipment Manufacturing Based on Testing and Training Architecture and its Applications
Qi Zhu and Bohui Shen
Department of Information Engineering, Taiyuan University of Technology, Taiyuan, China
Page No: 1-7
Abstract: Currently, there are many independent and closed "chimney" simulation systems in some range training systems, which is not only a waste of resources but incompatible with other systems well. In view of this situation, the paper focused on using of the testing and training architecture (TENA) that US developed to make improvements. According to the characteristics of TENA's architecture, the paper summarizes the framework to adapt the domestic simulation systems. Finally, the conclusion shows that it can indeed improves the performance of the system using TENA in the domestic simulation systems.
Keyword: simulation system, equipment manufacturing, architecture
Research on Particle Flow Simulation and Characteristic Development of Stress and Displacement in the Process of Extrusion in Lateral Soil
Duo Wen1, Jianguo Zheng1 and Haizhou Tu2
1School of Energy Engineering, Northeast Petroleum University, Daqing, China
2School of Civil Engineering, Hubei University of Technology, Huangshi, China
Page No: 8-17
Abstract: Effect of pushing against soil of static driven Piles involve a series of problem, such as the large deformation and material non-linearity, etc. the research on its mechanism of action is still in the stage of exploration at present. In this paper, it attempts to analyze the problem of characteristic of development and change of stress and displacement in the process of extrusion and compaction of lateral soil of pile from the microscopic view when piles squeezed into soil. Based on the previous theoretical analysis and experimental results on the model, the two-dimensional particle flow code (PFC2D) is developed, the whole process of Static driven Piles continuous penetrate soil is simulated. The laws of soil displacements and stress changing with horizontal distance and depth during the process of pressing piles are obtained. Finally, the model results were compared with experimental results, and verified the applicability of the simulation results. In this paper, it reveals the regularity of movement of particles from the microscopic view in the process of static pressure piles Squeezed into soil, and it provide some reference for more complex microscopic simulation research of geotechnical engineering problems.
Keywords: particle flow code; pile driving; displacement; particle flow simulation
Characteristics of High Node Mobility and the Fast Topology Changes in Vehicular Ad Hoc Networks
Lesisam Abbas Tuayvi and Puyeeshi K
School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology, Islamabad, Pakistan
Page No: 18-30
Abstract: Vehicular Ad Hoc Networks is a class of special wireless ad hoc network with the characteristics of high node mobility and fast topology changes. The Vehicular Networks can provide wide variety of services, range from safety-related warning systems to improved navigation mechanisms as well as information and entertainment applications. So lot of research work is being conducted to study the problems related to the vehicular communications including network architecture, protocols, routing algorithms, as well as security issues. In order to stimulate the ‘beginners in research’, here we present a paper on an overview of Vehicular Ad Hoc Networks.
Keywords: vehicular ad hoc networks, mobility, vehicular communications
Study on Network Management Efficiency and Implementation of System Flexibility in Network Monitoring Service Model
Lifan Yang1, Feng Mao1, Aiguo Zhu1, Gang Chen2, Jie Huang2, Ting Li3
1School of Information Science, Ningxia Normal University, Yinchuan, China
2School of Economic Management, Ningxia Normal University, Yinchuan, China
3School of Information Technology, South-Central University for Nationalities, Wuhan, China
Page No: 31-38
Abstract: With the rapid development of network technology, Network security management problems highlighted increasingly. This paper proposes a model of network monitoring service based on service-oriented architecture (SOA), Because of its low coupling, has nothing to do with the platform , SOA is good to solve the problem of the system flexibility and interoperability. Apply SOA to network monitoring management, to further improve the efficiency of network management.
Keywords: SOA architecture, network management, service, the service bus
Criticalities and Challenges Assessment in Machining Monolithic Thin Walled Parts and Thin floored Avionics Components in Aviation industries
Samiklo S Mildaha and Romoni Kaelas M
Integrative Systems and Design Centre, University of Michigan, Michigan, USA
Page No: 39-51
Abstract: One of the biggest challenges in Aviation industries is milling part features from prismatic blocks to part features with wall and floor thicknesses very similar to sheet metal assemblies. Much research has gone and is still going into machining processes of thin walled components and near net machining. This paper presents an overview in understanding the importance, criticalities and challenges in machining aluminum monolithic thin wall thin floor avionic parts.
Keywords: thin walled parts, prismatic blocks, assessment, residual stresses
Research and Design of Cross Sectional Dimensions Reinforced Concrete Continuous Beams by Application of Genetic Algorithms
Gee Ranikaso, D Menthoye and O Ethyrics
Department of Artificial Intelligence, Osmania University, Hyderabad, Telangana, India
Page No: 52-65
Abstract: This paper presents the application of genetic algorithms (GA) for the optimum cost design of reinforced concrete continuous beams based on the standard specifications of the American Concrete Institute. The produced optimum design satisfies the strength, serviceability, ductility, durability, and other constraints related to good design and detailing practice. While most of the approaches reported in the literature consider steel reinforcement and cross-sectional dimensions of beam as design variables of the flexural aspect only, the dimensions and reinforcing steel in this research were introduced as design variables, considering the flexural, shear, and torsion effects on the beam. The constant parameters specified prior to the solution of the optimization problem included the number of bays, lengths of span, support conditions, loads, material properties, and unit costs. The forces, moments, and deformations needed in the GA constraints were determined from the analysis. The beam dimensions were corrected to the nearest 25 mm, and the areas of the longitudinal and transverse steel obtained from the design were converted into the least weight detailing of steel reinforcements. This conversion was achieved by generating a database of reinforcement templates containing different available reinforcement bar diameters in a pre-specified pattern, satisfying the user-specified bar rules and other bar spacing requirements. The optimum design results were compared with those in the available literature. Upon the illustration of an example problem and the presentation of results, the proposed optimum design model is concluded to yield rational, reliable, economic, and practical designs.
Keywords: optimization, genetic algorithm, Cross Sectional Dimensions, continuous beams
Optimization Methods of Boiler Efficiency and Boiler Operation Software Application Based on Intelligent Algorithm
Long Chen1 and Yunfa Tong2
1School of Information Engineering, Chongqing Normal University, Chongqing, China
2School of Mechanical Engineering, Shanghai University of Technology, Shanghai, China
Page No: 66-72
Abstract: Boiler efficiency is influenced by many factors. In order to find and realize optimum efficiency of boiler, the concept of controllable operating parameter is introduce to select the parameters and optimize them. Finally, 3 parameters are determined to participate in optimization, namely, excess air coefficient, exhaust gas temperature and main stream flow. Then this paper concludes the relationship between these parameters and boiler efficiency respectively. By using the function optimization algorithm based on genetic algorithm and nonlinear programming, the optimum scheme of boilers and calculate optimal solution of is achieved, that is 93.110%.
Keywords: controllable operating parameters, genetic algorithm, nonlinear programming
Research on Immune Algorithm and Effectiveness Evaluation in Medicine Delivery System Model by Using Graph Theory
School of Electrical Engineering, Changsha University of Science and Technology, Changsha, China
Page No: 73-79
Abstract: Based on the graph theory and immune algorithm, this paper produces a medicine delivery system in West Africa where the largest and most complex Ebola outbreak takes place. Firstly, the delivery destinations where vaccine or drug is badly needed are selected using the map of cumulative cases in different regions. Then the problem how to determine locations of distribution centers is transformed into a goal programming problem. In this model, object is defined as the minimum cost of delivery transport. The cost is calculated by the product of needed vaccine or drug in each destination and the distance from this destination to its potential delivery center. Finally, the goal programming problem is solved by immune algorithm. This model can also be used in other similar cases where such an optimized delivery system is needed urgently.
Keywords: immune algorithm, graph theory, medicine delivery system
Investigating of Growth Situation of Trees and Stand Improvement in Environmental Protection Forests in Guangdong Province
Libo Sun1, Yuhai Chi1 and Taichuang Zhong2
1Beijing Forests Group Co., LTD, Beijing, China
2School of Resources and Environment, China University of Geosciences, Beijing, China
Page No: 80-85
Abstract: In this study, we investigated and researched the growth situation of 18 kinds of tree species in the stand improvement plot of environmental protection forests along the hill which is behind the ceramics factory of Gaoming District, Foshan City, Guangdong Province, and we implemented growth situation comparison and cluster analysis of ground diameter, tree height, crown width and clear bole height about these18 kinds of tree species. The result showed that: Michelia macclurei and Schima superba grew the best and had the largest volume of comprehensive growth, and 12 tree species--Ficus altissimo, Syzygium rehderianum, Heteropanax fragrans, Nerium indicum, Acronychia pedunculata, Mytilaria laosensis, Tutcheria championi, Ilex rotunda, Alstonia scholaris and Carallia brachiata grew well and had a relatively large volume of comprehensive growth with an initial fast-growing result, which could be applied in environmental protection forest.
Keyword: environmental protection forest, stand improvement, growth of tree, clustering analysis
Flu-Orescence Intensity Analysis Applied in Multilayer Membrane As-Sembly Process and the Growth Factors of Osteogenic Differentiation
Shun Zou, Qihang Wu and Gui Liu
School of Environmental Engineering, Harbin Institute of Technology, Harbin, China
Page No: 86-91
Abstract: Creating a bioactive cell-microenvironment and osteogenic functionality interface can be used for the surface modification of bone tissue engineering material, showing a good application prospect. In this paper, a bioactive and osteogenic functionality multilayer membrane with controllable amount of growth factors was fabricated by layer-by-layer assembly technique. Four biological macromolecules (casein, heparin, aidic fibroblast growth factor (aFGF) and collage I) were introduced onto the surface of polyurethane (PU) membrane. Flu-orescence intensity analysis and a toluidine blue assay revealed that the successfully multilayer membrane as-sembly process. The amount of aFGF loaded on membrane was regulated by changing the concentration of heparin, and aFGF can sustainably released from the membrane for 8 days. FDA staining and MTT assay showed that mesenchymal stem cells (hMSCs) on growth factors multilayer membrane fully spread and displayed more obvious proliferation behavior. These preliminary results collectively show a practical and simple assembly tech-nique, through which a bioactive and osteogenic material interface can be easily fabricated. This setup has the potential to be used for bone tissue engineering.
Keyword: multilayer membrane, layer-by-layer self-assembly, osteogenic differentiation