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检索条件"任意字段=2nd International Conference on Computational Modeling, Simulation and Data Analysis, CMSDA 2022"

共 201 条记录，以下是11-20 订阅

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simulation and analysis of Network Reliability for Avionics Applications 2

Simulation and Analysis of Network Reliability for Avionics ...

引用

2nd international conference on computational modeling, simulation and data analysis, cmsda 2022

作者： Gao, Henan Xiao, Shanzhu Tao, Huaming Lu, Huanzhang School of Electronic Science National University of Defense Technology Changsha China

ISBN: (纸本)9798350345759

Reliability is a critical performance for airborn communication networks, and it is heavily influenced by network topology. Redundant designs might improve reliability, but the increased weight, cost, and complexity must be taken into account. This paper focuses on the reliabiltiy analysis of different topologies of network in airborn communication applications, and the comprehensive impact of redundancy mechanisms on its reliability performance. A network reliability simulation method based on the minimum path set algorithm and Monte Carlo simulation method is designed, and quantitative comparison and analysis of two frequently used airborn topologies and their dual redundancy forms are carried out. According to simulation results, the dual-loop topology is suitable for building the backbone network of the airborn communication system, and the dual-bus topology is suitable for some critical subnet systems with stricter reliability requirements. © 2022 IEEE.

关键词： Redundancy

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Research on the Selection of Reverse Logistics Model of Waste Household Appliances Based on the Maximization of Income 2

Research on the Selection of Reverse Logistics Model of Wast...

引用

2nd international conference on computational modeling, simulation and data analysis, cmsda 2022

作者： Mu, Guobin Wang, Xifu Shen, Mengru Wu, Chun Beijing Jiaotong University T A Key Lab. of Transport Industry of Big Data Application Technologies for Comprehensive Transport Beijing China

ISBN: (纸本)9798350345759

At present, China attaches great importance to the disposal of waste household appliances, but the recycling market of waste household appliances is still in a state of disorder. Reverse logistics strategy has become an important means for household appliance manufacturers to strengthen their core competition. Manufacturers need to choose appropriate reverse logistics mode according to their own conditions. This paper will study the selection of reverse logistics mode of waste electrical appliances, build a mathematical model of maximizing revenue and solve it. Taking Company M as an example, the validity and rationality of the model and algorithm are verified. © 2022 IEEE.

关键词： Domestic appliances

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Research on UAV Location Based on Wolf Pack Optimization Algorithm analysis 2

Research on UAV Location Based on Wolf Pack Optimization Alg...

引用

2nd international conference on computational modeling, simulation and data analysis, cmsda 2022

作者： Xu, Peng Huang, Gang Peng, Pengming School of Information Science and Engineering Chongqing Jiaotong University Chongqing China

ISBN: (纸本)9798350345759

In the actual bearings-only passive UAV positioning system, the UAV without standard position can't perform three-point positioning by geometric algorithm. This paper introduces how to locate the UAV when it is in an abnormal position and adjust it to the standard position. Firstly, the error distance between the original position and its accurate position is taken as the target, and a fitting optimization model is established. Finally, based on the hybrid genetic wolf pack optimization algorithm, the point with smaller error distance is taken as the wolf king of the population, and the wolf king with weak capture ability is eliminated by continuous genetic iteration. When the optimal distance is captured, the distance of the UAV is regarded as the standard distance. © 2022 IEEE.

关键词： Optimization

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analysis of Vortex Cavitation and Throttling Characteristics in Unsteady Large Eddy simulation 2

Analysis of Vortex Cavitation and Throttling Characteristics...

引用

2nd international conference on computational modeling, simulation and data analysis, cmsda 2022

作者： Xing, Cangmei Lu, Jibing Shen, Mengling Wen, Caizhang Zhai, Lianfu Wu, Zeyu China Nuclear Indutry23 Construction Co. LTD Science and Technology on Green Construction Laboratory Beijing China

ISBN: (纸本)9798350345759

In this paper, the vortex cavitation and throttling characteristics of the tunable cavitation throttling device are analyzed by combining the Schnerr-Sauer and Zwart-Gerbe-Belamri cavitation models for large eddy simulation under unsteady conditions. The results show that reducing the closed cone area formed by the valve core and the flow channel can help improve the cavitation flow velocity in the diffuse section. Increasing the spool engagement cone angle helps to improve the flow coefficient as the spool moves closer to the initial position;The change of outlet pressure cannot essentially change the process of cavitation;The cavitation index shows a logarithmic curve relationship with the decrease of throat diameter;The flow coefficient showed a negative correlation with the increase of throat diameter. By comparison, Schnerr-Sauer model is more sensitive to cavitation. © 2022 IEEE.

关键词： Large eddy simulation

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Environmental Optimization analysis of Outdoor Flow Field of a Campus Building in Changzhi City, Shanxi Province via CFD simulation 2

Environmental Optimization Analysis of Outdoor Flow Field of...

引用

2nd international conference on computational modeling, simulation and data analysis, cmsda 2022

作者： Wang, Zekun Taiyuan University of Technology Building Environment and Energy Application Engineering Shanxi Province Taiyuan030002 China

ISBN: (纸本)9798350345759

Energy is becoming a growing concern in the twenty-first century, and energy saving in buildings is a very important development direction, and CFD simulation can greatly understand the flow field distribution around the building to achieve the goal of building energy savings. The outdoor flow field environment of a campus building in Changzhi City, Shanxi Province, is used as an example for optimization analysis in this paper. The design first employs fluid calculation software to simulate the building's external flow field with CFD, then adjusts the orientation and layout of the building based on the simulation results, and adds more structures to ensure that the building can maximize the use of natural ventilation to reduce indoor load in summer and have a small amount of cold air infiltration in winter. According to the results of the paper, the CFD simulation demonstrates that the solution can make better use of natural ventilation to reduce the summer load, and that for the winter load, the cold wind infiltration velocity of the entire teaching building and some major places of the complex building will decrease, but will increase the load of other buildings, such as the art and sports building. © 2022 IEEE.

关键词： Flow fields

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A Probabilistic Model for JSON data 2

A Probabilistic Model for JSON Data

引用

2nd international conference on computational modeling, simulation and data analysis, cmsda 2022

作者： Lv, Teng Yan, Ping School of Big Data and Artificial Intelligence Anhui Xinhua University China

ISBN: (纸本)9798350345759

JSON is an exchange data format for applications nowadays. To manage JSON data efficiently, it is important to use a proper model for JSON data. A straightforward model for JSON is a tree-structured model, in which nodes are types of JSON data, and edges are values of the nodes. As uncertainties are common and natural in real environments, it is realistic for a JSON model to deal with uncertainties of JSON data. This paper first analyzes the state-of-art uncertainty in data management fields, including relational database, XML data, and graph data, etc. Then based on the above observations, a probabilistic JSON model is proposed based on the tree model of JSON data is proposed, in which probability settings are incorporated in the (key, value) pairs of JSON model. Finally, JSONPath is extended to deal with probability computing of JSON data queries. © 2022 IEEE.

关键词： Trees (mathematics)

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Emotional Recognition Based on Convolutional Neural Network 2

Emotional Recognition Based on Convolutional Neural Network

引用

2nd international conference on computational modeling, simulation and data analysis, cmsda 2022

作者： Teng, Yuan Xu, Zhuohao Chen, Delang Xu, Zixuan College of Mechanical and Electrical Engineering Central South University Changsha410083 China ZJUI Zhejiang University Haining314400 China Shenzhen College of International Education Shenzhen518043 China

ISBN: (纸本)9798350345759

Recently, emotional recognition based on machine learning algorithm has gained greater attention. Considering python has an excellent open-source model PyEEG which is especially made for dealing with EEG signal, and rich machine learning models, so we choose python as our tool. In this paper we have applied the analysis on DEAP: a database using physiological signal aiming for emotion analysis, which records arousal, valence, like/dislike levels, dominance and familiarity of 32 participants after watching 40 fragments of music videos. We use fast Fourier transform (FFT), 'frequency ratio' and permutation entropy method to extract features from the dataset and divide the training set (80%) and the test set (20%), then build a three-dimensional convolution model(3D-CNN) to train them. Finally, we have achieved high precision (99.73%). © 2022 IEEE.

关键词： Fast Fourier transforms

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Household Demand analysis of New Energy Battery in Household Solar Power Generation System 2

Household Demand Analysis of New Energy Battery in Household...

引用

2nd international conference on computational modeling, simulation and data analysis, cmsda 2022

作者： Sun, Huayue Saint Viator High School 1213 East Oakton Street Arlington HeightsIL60004 United States

ISBN: (纸本)9798350345759

Solar energy refers to the conversion of the energy of sunlight into electrical energy, which can provide electricity for household appliances. However, solar energy cannot be used directly on cloudy days or at night. The purpose of this paper is to design a new energy battery pack purchase plan for the household solar power generation system for a family to save solar energy for use at night and on a cloudy day. We first estimate the electricity consumed by this house in one night and on a cloudy day based on indicators such as the power rating and working hours. Then the price of the energy storage system is taken as the main consideration to establish an integer linear programming model. Based on the results of this model, we give the best selections for different types of batteries. In addition, we adjust and generalize the established integer linear programming model so that it is adaptable to different needs and preferences to choose the best battery storage. The battery capacity preference, the continuous power supply preference, and the instantaneous power preference are studied, respectively. © 2022 IEEE.

关键词： Solar power generation

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Application of Cloud Computing in Information Management System in the Era of Big data 2

Application of Cloud Computing in Information Management Sys...

引用

2nd international conference on computational modeling, simulation and data analysis, cmsda 2022

作者： Miao, Xianghui Liaoning Dalian China

ISBN: (纸本)9798350345759

Cloud computing can provide long-term maintenance technology for enterprise management planning, and improve the operational efficiency of enterprises without increasing energy consumption. Therefore, this paper studies how to improve the information management efficiency of small and medium-sized enterprises by introducing cloud computing technology to build software application system. Cloud computing enterprise management system of big data adopts Saas mode of cloud computing, cloud server is created by Alibaba Cloud, and virtual cluster is created by hadoop to realize distributed storage and calculation of enterprise information data. The application design adopts J2EE technology, java language and SSH framework to establish the system. In this paper, a storage resource pool is built in the virtual cluster, and then different servers are used as storage shared resource pools of different resources. Cloud platform can control and manage all virtual machines. © 2022 IEEE.

关键词： Big data

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Research on simulation analysis method of RAIKO P15 ice-roller tool vibration crushing compacted ice-snow 2

Research on simulation analysis method of RAIKO P15 ice-roll...

引用

2nd international conference on computational modeling, simulation and data analysis, cmsda 2022

作者： Jia, Li Tao, Yang Siqi, Wu Bin, Li Northeastern University No.11 Lane 3 Wenhua Road Heping District Liaoning Shenyang110819 China Dalian University of Technology No.2 Linggong Road Ganjingzi District Liaoning Dalian116024 China

ISBN: (纸本)9798350345759

The ground-excited ice-roller has been able to effectively solve the problem of ice-snow on the roads, but its ice breaking mechanism, operating parameters and efficiency still need to be studied and improved. This paper, taking effect of RAIKO P15 ground-excited ice-roller tool vibration crushing ice-snow as the research content, established a finite element model of tool and compacted ice-snow by using ANSYS/LS-DYNA, realized the simulation analysis of the process of ice-roller tool crushing compacted ice-snow, obtained the crushing effect of 10mm thick compacted ice-snow and the stress distribution of tool under different vibration frequencies, and determined that the optimized vibration frequency of ice-roller is 25 kHz. The simulation method and analysis result in this paper provide the method and basis for the design and manufacture of ice-snow removal equipment tool. © 2022 IEEE.

关键词： Ice

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