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Int. J. Math. Model. Numer. Optimisation最新文献

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An integrated inventory model for imperfect production process having preservation facilities under fuzzy and inflationary environment 模糊通货膨胀环境下带有保存设施的不完善生产过程的综合库存模型
Int. J. Math. Model. Numer. Optimisation
Pub Date : 2022-01-01 DOI: 10.1504/ijmmno.2022.10046545
S. V. S. Padiyar, Vipin Kuraie, Naveen Bhagat, S. Singh, Rinki Chaudhary
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引用次数: 1
Mathematical model for a compressed air system that couples demand and supply 压缩空气供需耦合系统的数学模型
Int. J. Math. Model. Numer. Optimisation
Pub Date : 2022-01-01 DOI: 10.1504/ijmmno.2022.10043548
M. Thabet, D. Sanders, G. Tewkesbury
This paper presents a mathematical model for a compressed air system (CAS) that couples system supply and demand. The supply side contains components responsible for production, treatment and storage of compressed air, while the demand side contains components that deliver and consume compressed air. Components considered include: compressor, cooler, storage tank, linear actuators and an air blower. Simulations were performed to study the impact of pressure regulation and storage tank size on system energy consumption. Results showed that pressure regulation reduced air and energy consumption and a properly sized tank volume reduced energy consumption while maintaining good system pressure stability.
本文建立了压缩空气系统供需耦合的数学模型。供应端包含负责生产、处理和储存压缩空气的组件，而需求端包含交付和消耗压缩空气的组件。考虑的组件包括:压缩机，冷却器，储罐，线性执行器和鼓风机。通过仿真研究了压力调节和储罐尺寸对系统能耗的影响。结果表明，压力调节可以减少空气和能量消耗，适当的储罐容积可以在保持良好系统压力稳定性的同时减少能量消耗。
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引用次数: 0
Modelling the transmission dynamics of coronavirus disease 2019 with treatment as a control strategy: the case of India 以治疗为控制策略的2019冠状病毒病传播动力学建模:以印度为例
Int. J. Math. Model. Numer. Optimisation
Pub Date : 2022-01-01 DOI: 10.1504/ijmmno.2022.119778
Sonam Gyeltshen, Thinley Tobgay
This paper models the transmission dynamics of coronavirus disease 2019 (COVID-19) and its treatment based on the cases in India, by extending the classic SIR model to include exposed, asymptomatic, and treatment classes with a special focus to investigate the effect of ineffective treatment on the transmissibility of the infection with variation in the treatment initiation. The basic reproduction number was computed to understand the relative effect of early treatment initiation from the delayed treatment initiation on the transmissibility of the infection. With the estimated parameters obtained by faithfully fitting the simulation to the observed data, a global sensitivity analysis carried out indicated the treatment initiation to be one of the most influential parameters to infection control. With this concept, a further analysis revealed that an early treatment initiation can be a helpful control strategy on the transmissibility of the infection. However, for it to happen, an intervention such as proactively doing case finding is deemed important. Copyright © 2022 Inderscience Enterprises Ltd.
本文以印度病例为基础，将经典SIR模型扩展到暴露、无症状和治疗类别，建立了2019冠状病毒病(COVID-19)的传播动力学和治疗模型，并特别关注治疗无效对感染传播力的影响，以及治疗起始时间的变化。计算基本繁殖数，以了解早期开始治疗与延迟开始治疗对感染传播力的相对影响。通过模拟得到的估计参数与观测数据的拟合，进行了全局敏感性分析，表明治疗起始时间是影响感染控制的最重要参数之一。根据这一概念，进一步的分析表明，早期开始治疗可能是控制感染传播的有益策略。然而，为了实现这一目标，积极主动地寻找案例等干预措施被认为是重要的。版权所有©2022 Inderscience Enterprises Ltd。
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引用次数: 0
Finite element tearing and interconnecting-1 method for the solution of the topology optimisation problem 采用有限元撕裂互连法求解拓扑优化问题
Int. J. Math. Model. Numer. Optimisation
Pub Date : 2022-01-01 DOI: 10.1504/ijmmno.2022.10045638
Ouafaa Raibi, A. Makrizi
{"title":"Finite element tearing and interconnecting-1 method for the solution of the topology optimisation problem","authors":"Ouafaa Raibi, A. Makrizi","doi":"10.1504/ijmmno.2022.10045638","DOIUrl":"https://doi.org/10.1504/ijmmno.2022.10045638","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":"48 1","pages":"141-156"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79364650","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
Optimum economic ordering and preservation technology expenditure strategy facing non-instantaneous degrading inventory as a consequence of composite impact of advertisement, trade-credit besides inflation 面对广告、贸易信用、通货膨胀等综合影响下库存非瞬时退化的最优经济订货与保存技术支出策略
Int. J. Math. Model. Numer. Optimisation
Pub Date : 2022-01-01 DOI: 10.1504/ijmmno.2022.10043097
C. Nautiyal
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引用次数: 0
A mathematical study of dynamical model for Japanese encephalitis-dengue co-infection using JE vaccine 乙脑疫苗对乙型脑炎-登革热合并感染动力学模型的数学研究
Int. J. Math. Model. Numer. Optimisation
Pub Date : 2022-01-01 DOI: 10.1504/ijmmno.2022.126564
A. Dwivedi, Ram Keval, Vinod Baniya
{"title":"A mathematical study of dynamical model for Japanese encephalitis-dengue co-infection using JE vaccine","authors":"A. Dwivedi, Ram Keval, Vinod Baniya","doi":"10.1504/ijmmno.2022.126564","DOIUrl":"https://doi.org/10.1504/ijmmno.2022.126564","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":"1 1","pages":"416-442"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88643371","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
Mathematical model of terrorism: case study of Boko Haram 恐怖主义的数学模型:博科圣地的案例研究
Int. J. Math. Model. Numer. Optimisation
Pub Date : 2022-01-01 DOI: 10.1504/ijmmno.2022.119788
Michel Smah
{"title":"Mathematical model of terrorism: case study of Boko Haram","authors":"Michel Smah","doi":"10.1504/ijmmno.2022.119788","DOIUrl":"https://doi.org/10.1504/ijmmno.2022.119788","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":"16 1","pages":"88-112"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82086863","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
Solution of an integer linear programming problem via a primal dual method combined with a heuristic 用原始对偶法结合启发式方法求解整数线性规划问题
Int. J. Math. Model. Numer. Optimisation
Pub Date : 2022-01-01 DOI: 10.1504/ijmmno.2022.10043549
Mohand Ouamer Bibi, Houria Boussouira, Abdelhek Laouar
{"title":"Solution of an integer linear programming problem via a primal dual method combined with a heuristic","authors":"Mohand Ouamer Bibi, Houria Boussouira, Abdelhek Laouar","doi":"10.1504/ijmmno.2022.10043549","DOIUrl":"https://doi.org/10.1504/ijmmno.2022.10043549","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":"34 1","pages":"69-87"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85737906","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 second order weighted monotone numerical scheme for time-delayed parabolic initial-boundary-value problem involving a small parameter 含小参数的时滞抛物型初边值问题的二阶加权单调数值格式
Int. J. Math. Model. Numer. Optimisation
Pub Date : 2022-01-01 DOI: 10.1504/ijmmno.2022.10046706
A. Das, L. Govindarao, J. Mohapatra
{"title":"A second order weighted monotone numerical scheme for time-delayed parabolic initial-boundary-value problem involving a small parameter","authors":"A. Das, L. Govindarao, J. Mohapatra","doi":"10.1504/ijmmno.2022.10046706","DOIUrl":"https://doi.org/10.1504/ijmmno.2022.10046706","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":"4 1","pages":"233-251"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77522115","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: 1
Improvement in estimation of population variance utilising known auxiliary parameters for a decision-making model 利用已知辅助参数对决策模型进行总体方差估计的改进
Int. J. Math. Model. Numer. Optimisation
Pub Date : 2022-01-01 DOI: 10.1504/ijmmno.2022.10043545
Devender Kumar Sharma, S. K. Yadav, H. Sharma
{"title":"Improvement in estimation of population variance utilising known auxiliary parameters for a decision-making model","authors":"Devender Kumar Sharma, S. K. Yadav, H. Sharma","doi":"10.1504/ijmmno.2022.10043545","DOIUrl":"https://doi.org/10.1504/ijmmno.2022.10043545","url":null,"abstract":"","PeriodicalId":13553,"journal":{"name":"Int. J. Math. Model. Numer. Optimisation","volume":"129 1","pages":"15-28"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85755925","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: 2
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