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检索条件"任意字段=2021 International Conference on Applied Mathematics, Modeling and Computer Simulation, AMMCS 2021"

共 646 条记录，以下是121-130 订阅

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Electromagnetic Compatibility simulation of Missile-Borne Multi-Antenna System 3

Electromagnetic Compatibility Simulation of Missile-Borne Mu...

引用

3rd international conference on applied mathematics, modeling and computer simulation, ammcs 2023

作者： Hu, Xiao Li, Ping Shi, Haotian Xu, Qinglin Wu, Bicheng Shi, Jiazhao Xi'an Modern Control Technology Research Institute Shaanxi Xi'an710065 China

ISBN: (纸本)9781643684581

Due to the compact spatial structure of missiles and the close proximity between antennas of different wireless communication device, the electromagnetic compatibility problem of multi-antenna systems is becoming increasingly prominent. To solve this problem, this paper establishes an electromagnetic simulation model comprised of missile, two inverted-F antennas, microstrip antenna and microstrip array antenna, which is based on the numerical simulation software CST. In order to evaluate the electromagnetic compatibility between antennas in the multi-antenna scenario, the S parameters representing the coupling degree between antennas are simulated and solved. The simulation results show that the coupling transmission parameter between two inverted-F antennas are much higher than other antenna pairs, which indicates the antenna coupling degree is closely associated with the distance between antennas and the structural form of the antenna. Further, a method for evaluating the electromagnetic compatibility of multi-antenna system is presented, and a calculating method for the suppression performance indexes of the antenna radio frequency filter is provided. © 2023 The Authors.

关键词： Missiles

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modeling and analysis of different architecture for civil aircraft hydraulic system 4

Modeling and analysis of different architecture for civil ai...

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2021 4th international conference on applied mathematics, modeling and simulation, AMMS 2021

作者： He, Xunan Kang, YuanLi Hui, Yannian Department of More Electric System Beijing Aircraft Technology Research Institute China

For the evaluation of civil aircraft hydraulic system, Fuel Consumption is a very important index. However, there is no effective method to perform analysis for different architecture. This paper proposes that taking fuel weight penalty as a major mathmatical modeling method to analysis traditional architecture and more electric architecture. The result shows that the fuel consumption of more electric architecture is less than traditional architecture. © Journal of Physics: conference Series 2021.

关键词： Fuels

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Geometric Brownian motion and its application in simulation of stock price

Geometric Brownian motion and its application in simulation ...

引用

2021 international conference on Statistics, applied mathematics, and Computing Science, CSAMCS 2021

作者： Liu, Senyuan Dept. of Sta and Applied Probability University of California Santa BarbaraCA93106 United States

ISBN: (纸本)9781510652026

Probability and statistics are widely applied in the modern financial market, and it contributes and prompts the study in stock market analysis. The Brownian motion particularly plays a key role in the scenario on the prediction of stock volatility. This paper is going to discuss the fundamental mathematical and statistical theories applied in the simulation of stock volatility. It involves the introduction to geometric Brownian motion, stochastic process, random walk, and some important statistical theorems. The most frequent model for modeling stock prices is Geometric Brownian Motion (GBM). GBM posits that random shocks accompany a continuous drift. While period returns are normally distributed under GBM, multiperiod price levels (for example, ten days) are lognormally distributed. Forecasting of stock prices acts as an important challenge in nowadays stock market decision. © COPYRIGHT SPIE.

关键词： Stochastic systems

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simulation and Analysis of Dynamic Characteristics of Tilt Rotor/Wing Coupling System 2

Simulation and Analysis of Dynamic Characteristics of Tilt R...

引用

2nd international conference on applied mathematics, modeling and computer simulation, ammcs 2022

作者： Sun, Fengnan Zhu, Yan Cheng, Qiyou Wang, Siwen Xing, Longtao China Helicopter Research and Development Institute Jingdezhen333001 China

ISBN: (纸本)9781643683522

Considering the coupling effects of elastic wing, elastic blade, rigid nacelle and connection points between systems, the mathematical model of the coupling system including wing/nacelle/tilting rotor is established. Based on the eigenvalue method, the overall modal changes of the rotor installed on the wing and the effects of speed and offset on the dynamic characteristics of the system are studied. The results show that the wing joint motion mainly affects the backward and forward modes of rotor flapping. Different rotor rotation speeds cause varying degrees of modal frequencies of wings in different flight modes, especially the wing flapping mode. The nacelle tilt angle causes significant changes in wing waving frequency, and other modes are basically unaffected. The shaft length mainly affects the wing shimmy and torsional mode in vertical flight, and the offset basically does not affect the wing modes in the forward flight stage. © 2022 The authors and IOS Press.

关键词： Eigenvalues and eigenfunctions

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simulation of Network Model on Cloud Technology based on Mathematical Framework 6

Simulation of Network Model on Cloud Technology based on Mat...

引用

6th international conference on Business and Industrial Research, ICBIR 2021

作者： Chimmalee, Benjamas Anupan, Anuchit Sisaket Rajabhat University Department of Mathematics Thailand

ISBN: (纸本)9781665433495

computer-based simulation of disease distribution is an important tool used to investigate the spread of infectious diseases. One of the most important theoretical developments has been the integration of mathematical modeling and the implementation of cloud-based technology. We propose the use of cloud technology to simulate a network model. The data generated as output from C++ software, based on the assumption of a mathematical framework of a SEIQR network model, are used as datasets for simulation. The simulation results of the mathematical model were studied in this paper. By applying mathematical software to cloud technology, this study investigates using available cloud services as a SaaS model. The data were analyzed using content analysis. The approach for simulation using mathematical software and cloud-based mathematical software were analyzed as follows: 1. the display of the graph;2. the runtime performance. The results of the simulation are also discussed. © 2021 IEEE.

关键词： computer software

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Verification simulation and development of new marine transport model 4

Verification simulation and development of new marine transp...

引用

2021 4th international conference on applied mathematics, modeling and simulation, AMMS 2021

作者： Zhang, Jing Zhejiang Ocean University School of Information Engineering China

The structure of the global supply chain creates an imbalance in trade between regions of the world. It creates many empty containers on the ocean shipping route. Focusing on this problem, we will develop an empty container relocation plan for empty containers in a marine container logistics network connecting multiple bases and propose a model that minimizes the total cost of container transportation. The proposed model was verified by the simulation designed and developed in this study, and the effectiveness of the proposed model was shown by the data of the marine transportation company. © Journal of Physics: conference Series 2021.

关键词： Containers

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modeling simulation and maintenance strategy optimization of multi-component system 4

Modeling simulation and maintenance strategy optimization of...

引用

2021 4th international conference on applied mathematics, modeling and simulation, AMMS 2021

作者： Ma, Yujun Zhou, Yan School of Economics and Management Nanjing University of Science and Technology Nanjing China

As the system tends to be complicated and refined, the probability and cost of failure also increase. In the actual operation and production, the system will be affected by various factors such as temperature, humidity and other factors to change their original working environment, which will have greater impact on the reliability of the system. Based on the reliability theory, this paper mainly studies the k-out-of-n: F system, constructs the reliability model of the system in dynamic environment, gives the simulation algorithm of the system reliability. Finally, this paper puts forward two maintenance strategies which are optimized to achieve the purpose of minimizing the long-term average cost during system operation. © Journal of Physics: conference Series 2021.

关键词： Reliability theory

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modeling the Development of Fire Unconventional Methodology 25

Modeling the Development of Fire Unconventional Methodology

引用

25th international conference on Circuits, Systems, Communications and computers (CSCC)

作者： Blahova, Marta Hromada, Martin Tomas Bata Univ Zlin Fac Appl Informat Zlin Czech Republic

ISBN: (纸本)9781665427494

The article describes a proposal for a different approach to modeling the development of fire using multiagent systems and evaluating its benefits. One of the chapters lists the disadvantages that such an approach provides compared to currently used "conventional" models. modeling and simulation is essential for understanding complex ecological systems. How-ever, knowledge of the structure and behavior of these systems is limited, and models must be revised frequently as our understanding of a system improves. Moreover, the dynamic, spatial distribution of activity in very large systems necessitates mapping natural mecha-nisms as logically as possible onto computer structures. modeling and simulations are essential for understanding complex ecological systems. How-The knowledge structure and behavior of these systems is limited and models must be it will often be revised as our understanding of the system is prepared. In addition, the dynamic, spatial distribution of activity in very large systems involving the mapping of natural mechanic-logic into computer structures. This article describes the theoretical and algorithmic tools for creating component-based models and simulating dynamic bath phenomena. These methods focus on irregular distribution activity in ecological processes. This approach to event-based modeling naturally leads to efficient simulation algorithms. Ecological modeling benefits from these efficient simulation algorithms and the reuse of basic model components. The method is based on the event it is demonstrated on the physical model of fire propagation.

关键词： multiagent system model of fire spread NetLogo cellular automata

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Research on simulation Experimental Platform Under New Power System 2

Research on Simulation Experimental Platform Under New Power...

引用

2nd international conference on applied mathematics, modeling and computer simulation, ammcs 2022

作者： Li, Qingsheng Long, Jiahuan Li, Zhen Yang, Shunji Xu, Ying Guizhou Power Grid Co. Ltd. Power Grid Planning Research Center Guiyang550000 China College of Electrical Engineering GuiZhou University Guiyang550025 China

ISBN: (纸本)9781643683522

According to the development trend of electric frontier field and the requirement for construction of new engineering, the construction and application of simulation experimental platform under new electric system are studied. The construction scheme of new engineering experimental platform of electric system, which takes the real-time simulator of electric information as the core, is put forward to connect all links of demand analysis, system design, mirror simulation and product definition, train and cultivate the students' ability of project development, and organize the fragmented knowledge of multiple courses. The whole process of model building, off-line simulation, real-time simulation and semi physical simulation is studied based on the teaching case of smart micro-grid project. It is proved in the teaching practice that the platform can support the experimental teaching mode of new engineering, which is of great significance to cultivate students' large engineering view, engineering thinking and innovative quality, and is a beneficial exploration for the construction of new electric engineering under the background of new power system. © 2022 The authors and IOS Press.

关键词： Smart power grids

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Algorithm for Intelligent modeling of Digital Body Twins 4

Algorithm for Intelligent Modeling of Digital Body Twins

引用

4th international conference on applied mathematics, modeling and computer simulation, ammcs 2024

作者： Chen, Shuming Dai, Yongbo Zou, Xiaohui Tianyanzhi Technology Industry Co. Ltd. Beijing102600 China Hengqin Searle Technology Co. Ltd. Hengqin Guangdong-Macao Deep Cooperation Zone Guandong 519000 China

ISBN: (纸本)9781643685519

This study aims to demonstrate the superiority of a pan-attribute-based intelligent algorithm in comparison to traditional interpolation and fitting methods. The focus is on revolutionizing 3D geological modeling for more efficient resource exploration and environmental management. The algorithm leverages attribute fields to reconstruct continuous boundaries without discretization, incorporates various trend parameters, and achieves rapid and intelligent calculations. The validation system incorporates industry logic through typical cases, highlighting the algorithm's unique *** results show that the algorithm significantly outperforms traditional methods, enabling precise 3D geological representations. The integration with digital twins further enhances simulation capabilities for natural, artificial, and virtual *** combination of the algorithm and digital twins paves the way for a new generation of intelligent agents that significantly exceed human intelligence in specialized tasks. This study serves as a foundation for future research and applications in AI-supported productivity. © 2024 The Authors.

关键词： Digital elevation model

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