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Keyword: Mathematical modelling
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Open AccessArticle
9 Pages, 919 KB Download PDF

Mathematical Modelling of Output Responses and Performance Variations of an Education System due to Changes in Input Parameters

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 1, Page # 327–335, 2021; DOI: 10.25046/aj060137
Abstract:

“This paper is an extension of work originally presented in the 4th International Conference on Systems of Collaboration, Big Data, Internet of Things & Security -SysCoBIoTS’19”. The use of complex and dynamic systems modelling to social systems is quite recent and its pertinence in the case of an educational system is continually increasing. For the…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Interdisciplinary Applications of Computer Science (CSI))
Open AccessArticle
8 Pages, 10,700 KB Download PDF

Steel heat treating: mathematical modelling and numerical simulation of a problem arising in the automotive industry

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 5, Page # 55–62, 2017; DOI: 10.25046/aj020510
Abstract:

We describe a mathematical model for the industrial heating and cooling processes of a steel workpiece representing the steering rack of an automobile. The goal of steel heat treating is to provide a hardened surface on critical parts of the workpiece while keeping the rest soft and ductile in order to reduce fatigue. The high…

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(This article belongs to Section Applied Mathematics (MAP))
Open AccessArticle
14 Pages, 979 KB Download PDF

Active Disturbance Rejection Control Design for a Haptic Machine Interface Platform

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 1, Page # 898–911, 2021; DOI: 10.25046/aj060199
Abstract:

This paper proposes an active disturbance rejection control (ADRC) design for a haptic display platform structure. The motivation for the following scheme originates from the shortcomings faced by classical proportional integral derivative (PID) controllers in control theory. The ADRC is an unconventional model-independent approach, acknowledged as an effective controller in the existence of total plant…

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(This article belongs to the SP10 (Special Issue on Multidisciplinary Sciences and Engineering 2020-21) & Section Automation & Control Systems (ACS))
Open AccessArticle
10 Pages, 569 KB Download PDF

An Economic Theory Perspective for the Fight Against Poverty in the Peruvian Andes

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 6, Page # 497–506, 2020; DOI: 10.25046/aj050659
Abstract:

The fight against poverty in the Peruvian Andes is a complex task in which various professionals, such as engineers, economists, anthropologists, among others, participate. The uncertainty of the decisions taken today, no matter how appropriate they may seem, such as million-dollar investments in irrigation infrastructure, can result in over-production and, therefore, in economic recessions. For…

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(This article belongs to the SP9 (Special Issue on Multidisciplinary Innovation in Engineering Science & Technology 2020) & Section Operations Research & Management Science (ORM))

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