Proceedings of the 14th International Conference on Computer Modeling and Simulation最新文献_第4页

Simulation of TDP Therapy Based on Multiphysics 基于多物理场的TDP治疗仿真

Proceedings of the 14th International Conference on Computer Modeling and Simulation Pub Date : 2022-06-24 DOI: 10.1145/3547578.3547579

Jinjie Xie, P. Ran

引用次数: 0

Research on Automatic Data Collection Method of Electronic Countermeasure Training 电子对抗训练数据自动采集方法研究

Proceedings of the 14th International Conference on Computer Modeling and Simulation Pub Date : 2022-06-24 DOI: 10.1145/3547578.3547616

Jingping Huang, Yamiao Zhang, Xianlong Li, Weiwei Qi

引用次数: 0

Numerical Investigation of Drag and Heat Flux Reduction in Hypersonic Vehicle with Aerospike 带气刺的高超声速飞行器减阻和减热的数值研究

Proceedings of the 14th International Conference on Computer Modeling and Simulation Pub Date : 2022-06-24 DOI: 10.1145/3547578.3547593

Yang Xu, S. Fang

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Dynamic models for analysing stock market behaviour under the COVID-19 pandemic 分析COVID-19大流行下股票市场行为的动态模型

Proceedings of the 14th International Conference on Computer Modeling and Simulation Pub Date : 2022-06-24 DOI: 10.1145/3547578.3547614

Marco Peters

{"title":"Dynamic models for analysing stock market behaviour under the COVID-19 pandemic","authors":"Marco Peters","doi":"10.1145/3547578.3547614","DOIUrl":"https://doi.org/10.1145/3547578.3547614","url":null,"abstract":"During the COVID-19 pandemic [35] questions were raised on how to balance government measures ensuring population health and allowing economic development. At the start of the pandemic, Saudi-Arabia and Russia were in a pricing war over crude oil [20] which, along with speculation on the economic impact of COVID-19, led to a unprecedented negative crude oil price in the West Texas Intermediate (WTI) [5]. As the WTI serves as a benchmark for crude oil prices in North America, and a proxy for economic development [23], it is an interesting candidate to use for price forecasting [40]. The pandemic provides a unique perspective, as it introduces a new set of variables [11, 17], such as infections, deaths, vaccinations and government measures 1, that might aid in predicting economic development [1, 4, 14]. Related studies generally focus on macroeconomic development, such as gross domestic product (GDP), unemployment or inflation over years or decades, rather than short-term development over days, weeks or months. This study attempts to combine data from the COVID-19 pandemic, weather, stock pricing data and machine learning techniques to determine the relationship between these variables and their value towards more accurate price forecasting. As stock prices have high variance, extreme values might indicate local or global stock market crashes, an optimal model would be able to predict these crashes. To determine the outcome of our research question, we compare the value of our data between a baseline model, linear model and two state-of-the-art (SOTA) models, the random forest regressor (RFR) and auto-regressive integrated moving average (ARIMA) model. Both SOTA models tend to perform better or similar with less features, indicating the data does not add significant value to the prediction of stock market values.2","PeriodicalId":381600,"journal":{"name":"Proceedings of the 14th International Conference on Computer Modeling and Simulation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126353579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving the Emotional Health of Juveniles with VR Game 利用VR游戏改善青少年情绪健康

Proceedings of the 14th International Conference on Computer Modeling and Simulation Pub Date : 2022-06-24 DOI: 10.1145/3547578.3547608

Alice J. Lin, Charles Chen, Fuhua Cheng

引用次数: 1

Computational Investigation on Integrated Thermal Management System for Electric Vehicle 电动汽车综合热管理系统的计算研究

Proceedings of the 14th International Conference on Computer Modeling and Simulation Pub Date : 2022-06-24 DOI: 10.1145/3547578.3547585

Chen Zhao, Yucheng Li, Xing Deng, Nuan Song, Tao Wang, Qingpeng Deng, Zonghua Li

{"title":"Computational Investigation on Integrated Thermal Management System for Electric Vehicle","authors":"Chen Zhao, Yucheng Li, Xing Deng, Nuan Song, Tao Wang, Qingpeng Deng, Zonghua Li","doi":"10.1145/3547578.3547585","DOIUrl":"https://doi.org/10.1145/3547578.3547585","url":null,"abstract":"Range deterioration of Battery Electric Vehicle (BEV) under extreme environment temperature, especially under sub-zero temperature, has become one of the biggest challenges for Original Equipment Manufacturer (OEM). In this paper, a simulation model has been developed, which focuses on the correlation between range variation and environment condition. The concept of this model is to couple vehicle dynamics and the thermal behaviour of key components such as battery, electric drive system (EDS) and cabin. A matrix of steady-state experiments has been designed to calibrate this model. In conclusion, the confidence level in terms of relative error is within 2.2% for vehicle range, 2°C for battery temperature, 2°C for cabin temperature. After being validated, this model has been adopted to investigate the integrated thermal management system (TMS) of an A class sedan. A combination between thermal management of vehicle subsystems like battery, EDS and cabin has been explored in order to achieve a potentially maximum gain in terms of vehicle range. A potential 10.6% improvement of range under -7°C could be achieved. A map of range variation under different environment temperature has been drawn, indicating that the range variation was from 28.1% to 50.9%.","PeriodicalId":381600,"journal":{"name":"Proceedings of the 14th International Conference on Computer Modeling and Simulation","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126989741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A High-order FR-SLAU Scheme for Compressible Inviscid All-speed Flows 可压缩无粘全速度流的高阶FR-SLAU格式

Proceedings of the 14th International Conference on Computer Modeling and Simulation Pub Date : 2022-06-24 DOI: 10.1145/3547578.3547598

Yaojie Yu, Feng Liu, Jinsheng Cai

引用次数: 0

Aging Life Prediction Model of Energetic Materials 含能材料老化寿命预测模型

Proceedings of the 14th International Conference on Computer Modeling and Simulation Pub Date : 2022-06-24 DOI: 10.1145/3547578.3552514

Yongfei Pan, F. Nan, P. Chen

{"title":"Aging Life Prediction Model of Energetic Materials","authors":"Yongfei Pan, F. Nan, P. Chen","doi":"10.1145/3547578.3552514","DOIUrl":"https://doi.org/10.1145/3547578.3552514","url":null,"abstract":"Because of exposure to natural environment or specific working environment, energetic materials are easily affected by heat, oxygen, light and other factors in the process of processing, storage or use, and are prone to physical or chemical changes, resulting in degradation of material properties and even unusable. Therefore, how to accurately predict the aging life of energetic materials, choose appropriate test methods, and reduce the cost of existing aging test is particularly important. Based on chemical kinetics theory, this paper introduces the internal relationship between material aging performance P, aging time t and aging temperature T, and reviews the mathematical model and calculation method for predicting the safe storage life of energetic materials. Including the commonly used Arrhenius equation, Berthelot equation, modified Arrhenius equation, classical linear relation method, P-t-T mathematical model method, Monte Carlo simulation and other methods, discusses the characteristics and feasibility of mathematical model, establish the program flow of model implementation. It makes preparation for the development of a material aging life prediction software, and also facilitates production practice and improves the prediction efficiency.","PeriodicalId":381600,"journal":{"name":"Proceedings of the 14th International Conference on Computer Modeling and Simulation","volume":"288 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133531013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stress Analysis of Turbocharger Turbine based on Fluid-Structure Coupling 基于流固耦合的涡轮增压器应力分析

Proceedings of the 14th International Conference on Computer Modeling and Simulation Pub Date : 2022-06-24 DOI: 10.1145/3547578.3547595

R. Yan, Zhenlei Chen, Chang Liu, Fengyuan Yang, Yi Hu

引用次数: 0

Simulation and Test of Nozzle Optimization of Residual Film Barrier Device based on Fluent 基于Fluent的残膜阻挡装置喷嘴优化仿真与试验

Proceedings of the 14th International Conference on Computer Modeling and Simulation Pub Date : 2022-06-24 DOI: 10.1145/3547578.3547586

Yingjun Wang, Rong Hu, Huting Wang, Xue-Chen Feng

{"title":"Simulation and Test of Nozzle Optimization of Residual Film Barrier Device based on Fluent","authors":"Yingjun Wang, Rong Hu, Huting Wang, Xue-Chen Feng","doi":"10.1145/3547578.3547586","DOIUrl":"https://doi.org/10.1145/3547578.3547586","url":null,"abstract":"The residual film barrier device is installed at the bottom of the picking head of the cotton picker to block the negative pressure at the hole of removing impurities to suck the residual film, and the nozzle is one of its important working parts. The jet air curtain generated by the nozzle can effectively block the residual film on the surface from being sucked into the picking head through the hole of removing impurities due to negative pressure. The structure of the nozzle is optimized to improve the performance of the air curtain, which in turn improves the residual film blocking effect, reduces the residual film content in cotton and improves the quality of cotton. The optimized nozzle is trapezoidal structure, the upper bottom edge D is 25mm, the velocity inhomogeneity coefficient of opening 1 and opening 2 are 4.82% and 5.25% respectively, the velocity deviation is 0.19, the nozzle flow field characteristics are good. It was found that the average relative errors between the simulated and measured values of velocity on both sides of the nozzle were 1.54% and 2.32%, and the correlation coefficients were 96.0% and 95.4%, respectively, with good correlation and reasonable nozzle optimization results.","PeriodicalId":381600,"journal":{"name":"Proceedings of the 14th International Conference on Computer Modeling and Simulation","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116837200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0