Subproblems Applied to a 3-D Magnetostatic Facet FEM Formulation

Nunes, Anderson Santos; Dular, Patrick; Chadebec, Olivier; Kuo‐Peng, Patrick

doi:10.1109/tmag.2018.2828786

Cited by 12 publications

(8 citation statements)

References 26 publications

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“…Equations (1−4 and 12) can be solved in a coupled way. Given the geometric complexity and inhomogeneity of tissue, the solution must be local in the tissue using discretized 3D techniques as finite elements [64][65][66][67][68][69][70][71] in the appropriate element of the tissue. The discretized 3D elements are volume parts enclosed in surface elements, each encircled by edge elements, each ended by two nodes.…”

Section: Coupled Solution Of Emf and Bh Equationsmentioning

confidence: 99%

Intentional and Undesirable Effects Related to the Interaction of Electromagnetic Fields with Major Living Tissues

Razek

2024

Preprint

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The well-being and sociability of individuals have always been part of modernity. The development of new technologies that meet these aspirations is receiving increasing attention. Thus, strengthening the desired objectives of these tools and minimizing their undesirable side effects is the subject of a growing commitment. The present contribution aims, in this context, to evaluate and analyze the desired and undesirable effects of the interaction of electromagnetic fields with living tissues in general. This involves routines reinforcing expected functions as well as those controlling and protecting against undesirable effects. First, the interactions of electromagnetic fields with tissues are analyzed, involving their thermal biological effects of desired and undesired exposures. The roles of blood and sap fluids in bio-affected tissues are then analyzed. Secondly, the governing electromagnetic, bio-heat equations, and their coupled solution are studied. Third, the thermal behavior of tissues and the exposure adverse effects are examined. Next, monitoring and defending of the effects of exposures are discussed. This contribution illustrates and discusses mathematical modeling routines based on a generalized interaction of electromagnetic fields with living tissues.

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Section: Coupled Solution Of Emf and Bh Equationsmentioning

confidence: 99%

Intentional and Undesirable Effects Related to the Interaction of Electromagnetic Fields with Major Living Tissues

Razek

2024

Preprint

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“…More formally, the equations allowing the analysis of the static magnetic field in the absence of current are derived from Maxwell’s equations. From Gauss’s law for a magnetic field in the form ( 1 ) and Ampere’s law in the form ( 2 ) [ 25 ].

where:…”

Section: The Digital Twin Modelmentioning

confidence: 99%

On the Development of a Digital Twin for Underwater UXO Detection Using Magnetometer-Based Data in Application for the Training Set Generation for Machine Learning Models

Blachnik,

Przyłucki,

Golak

et al. 2023

Sensors

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Scanning underwater areas using magnetometers in search of unexploded ordnance is a difficult challenge, where machine learning methods can find a significant application. However, this requires the creation of a dataset enabling the training of prediction models. Such a task is difficult and costly due to the limited availability of relevant data. To address this challenge in the article, we propose the use of numerical modeling to solve this task. The conducted experiments allow us to conclude that it is possible to obtain high compliance with the numerical model based on the finite element method with the results of physical tests. Additionally, the paper discusses the methodology of simplifying the computational model, allowing for an almost three times reduction in the calculation time without affecting model quality. The article also presents and discusses the methodology for generating a dataset for the discrimination of UXO/non-UXO objects. According to that methodology, a dataset is generated and described in detail including assumptions on objects considered as UXO and nonUXO.

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“…The ruling Equations ( 1)-( 4) can be solved locally in the birdcage RF coil-antenna for reference conditions (without inserted matter) compared to situations involving the diverse controlled matters. This can be accomplished by means of numerical discretized methods [125][126][127][128][129][130][131] or other techniques allowing local computations.…”

Section: Emc Conformity Controlmentioning

confidence: 99%

Image-Guided Surgical and Pharmacotherapeutic Routines as Part of Diligent Medical Treatment

Razek

2023

Applied Sciences

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This contribution is part of the objective of diligent universal care that ensures the well-being of a patient. It aims to analyze and propose enriched image-guided procedures for surgical interventions and restricted delivery of implanted drugs in minimally invasive and non-ionizing circumstances. This analysis is supported by a literature review conducted in two ways. The first aims to illustrate the importance of recent research and applications involved in different topics of the subject; this is mainly the case for the introduction’s literature. The second concerns the literature dedicated to having more detailed information in context; this mainly concerns the citations in the different sections of the article. The universal goals of medical treatments are intended to involve the well-being of the patient and allow medical personnel to test new therapies and carry out therapeutic training without risk to the patient. First, the various functionalities involved in these procedures and the concerns of the magnetic resonance imaging technique (MRI) and ultrasound imaging technique (USI), recent contributions to the subject are reviewed. Second, the intervention procedures guided by the image and the implemented actions are analyzed. Third, the components of the fields involved in MRI are examined. Fourth, the MRI control of the treatments, its performance and its compliance are analyzed. Compatibility with MRI via electromagnetic compatibility (EMC) is conferred and demonstrated for an actuation example. Fifth, the extension of the concepts mentioned in the article, in the context of patient comfort and the training of medical staff is proposed. The main contribution of this article is the identification of the different strategic aids needed in healthcare related to image-assisted robotics, non-ionized, minimally invasive and locally restrictive means. Furthermore, it highlights the benefits of using phantoms based on real biological properties of the body, digital twins under human control, artificial intelligence tools and augmented reality-assisted robotics.

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Subproblems Applied to a 3-D Magnetostatic Facet FEM Formulation

Cited by 12 publications

References 26 publications

Intentional and Undesirable Effects Related to the Interaction of Electromagnetic Fields with Major Living Tissues

Intentional and Undesirable Effects Related to the Interaction of Electromagnetic Fields with Major Living Tissues

On the Development of a Digital Twin for Underwater UXO Detection Using Magnetometer-Based Data in Application for the Training Set Generation for Machine Learning Models

Image-Guided Surgical and Pharmacotherapeutic Routines as Part of Diligent Medical Treatment

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