期刊
PLOS ONE
卷 16, 期 5, 页码 -出版社
PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pone.0251297
关键词
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资金
- UK Engineering and Physical Sciences Research Council [EP/K03877X/1, EP/S032940/1]
- European Commission H2020 programme [H2020-EINFRA2015-1/675451, H2020-INFRAEDI2018-1/823712, H2020WIDESPREAD-2018-01/857533]
- UK National Institute for Health Research [IS-BRC-1215-20017]
- Shun Hing Education and Charity Fund
- EPSRC [EP/S032940/1, EP/K03877X/1] Funding Source: UKRI
- National Institutes of Health Research (NIHR) [IS-BRC-1215-20017] Funding Source: National Institutes of Health Research (NIHR)
The study proposes a method to define scale based on measurement limitations and variations in time and space, and uses it to construct a multiscale modelling methodology. This methodology can be easily adapted to a wide range of engineering problems.
Throughout engineering there are problems where it is required to predict a quantity based on the measurement of another, but where the two quantities possess characteristic variations over vastly different ranges of time and space. Among the many challenges posed by such 'multiscale' problems, that of defining a 'scale' remains poorly addressed. This fundamental problem has led to much confusion in the field of biomedical engineering in particular. The present study proposes a definition of scale based on measurement limitations of existing instruments, available computational power, and on the ranges of time and space over which quantities of interest vary characteristically. The definition is used to construct a multiscale modelling methodology from start to finish, beginning with a description of the system (portion of reality of interest) and ending with an algorithmic orchestration of mathematical models at different scales within the system. The methodology is illustrated for a specific but well-researched problem. The concept of scale and the multiscale modelling approach introduced are shown to be easily adaptable to other closely related problems. Although out of the scope of this paper, we believe that the proposed methodology can be applied widely throughout engineering.
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