scholarly journals Modeling and Characterization of Capacitive Coupling Intrabody Communication in an In-Vehicle Scenario

Sensors ◽  
2019 ◽  
Vol 19 (19) ◽  
pp. 4305 ◽  
Author(s):  
Yuan Xu ◽  
Zhonghua Huang ◽  
Shize Yang ◽  
Zhiqi Wang ◽  
Bing Yang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Experimental Validation ◽  
Open Space ◽  
Path Loss ◽  
Capacitive Coupling ◽  
The Finite Element Method ◽  
Ubiquitous Healthcare ◽  
Great Flexibility ◽  
Metal Wall

Intrabody communication (IBC) has drawn extensive attention in the field of ubiquitous healthcare, entertainment, and more. Until now, most studies on the modeling and characterization of capacitive coupling IBC have been conducted in open space, while influences when using metallic-enclosed environments such as a car, airplane, or elevator have not yet been considered. In this paper, we aimed to systematically investigate the grounding effect of an enclosed metal wall of a vehicle on the transmission path loss, utilizing the finite element method (FEM) to model capacitive coupling IBC in an in-vehicle scenario. The results of a simulation and experimental validation indicated that the system gain in an in-vehicle scenario increased up to 7 dB compared to in open space. The modeling and characterization achieved in this paper of capacitive coupling IBC could facilitate an intrabody sensor design and an evaluation with great flexibility to meet the performance needs of an in-vehicle use scenario.

An Investigation of the Distribution of Electric Potential and Space Charge in a Silicon Nanowire

2014 ◽  
Vol 69 (10-11) ◽  
pp. 597-605 ◽  
Author(s):  
A. Wesam Al-Mufti ◽  
Uda Hashim ◽  
Md. Mijanur Rahman ◽  
Tijjani Adam
Keyword(s):  
Finite Element Method ◽  
Space Charge ◽  
Electric Potential ◽  
Silicon Nanowire ◽  
Electrical Potential ◽  
Comsol Multiphysics ◽  
The Finite Element Method ◽  
Simulation Experiments ◽  
Different Dimensions

AbstractThe distribution of electric potential and space charge in a silicon nanowire has been investigated. First, a model of the nanowire is generated taking into consideration the geometry and physics of the nanowire. The physics of the nanowire was modelled by a set of partial differential equations (PDEs) which were solved using the finite element method (FEM). Comprehensive simulation experiments were performed on the model in order to compute the distribution of potential and space charge. We also determined, through simulation, how the characteristic of the nanowire is affected by its dimensions. The characterization of the resulting nanowire, calculated by COMSOL Multiphysics, shows different dimensions and their effect on space charge and electrical potential

A Model for the Prediction of Form Errors in Face Milling and Turning

1999 ◽  
Author(s):  
Luc Masset ◽  
Jean-François Debongnie ◽  
Sylvie Foreau ◽  
Thierry Dumont
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Cutting Forces ◽  
Experimental Validation ◽  
Industrial Applications ◽  
Face Milling ◽  
The Finite Element Method ◽  
Form Errors ◽  
Error Computation ◽  
Element Method

Abstract A method is proposed for predicting form errors due to both clamping and cutting forces in face milling and turning. It allows complex tool trajectories and workpiece geometries. Error computation is performed by the finite element method. An experimental validation of the model for face milling is presented. Two industrial applications are produced in order to demonstrate the capabilities of the method.

scholarly journals A characterization of supersmoothness of multivariate splines

2020 ◽  
Vol 46 (5) ◽  
Author(s):  
Michael S. Floater ◽  
Kaibo Hu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Finite Order ◽  
Maximal Order ◽  
Spline Functions ◽  
Multivariate Splines ◽  
The Finite Element Method ◽  
Polynomial Splines ◽  
Element Method

Abstract We consider spline functions over simplicial meshes in $\mathbb {R}^{n}$ ℝ n . We assume that the spline pieces join together with some finite order of smoothness but the pieces themselves are infinitely smooth. Such splines can have extra orders of smoothness at a vertex, a property known as supersmoothness, which plays a role in the construction of multivariate splines and in the finite element method. In this paper, we characterize supersmoothness in terms of the degeneracy of spaces of polynomial splines over the cell of simplices sharing the vertex, and use it to determine the maximal order of supersmoothness of various cell configurations.

Rigorous characterization of surface plasmon modes by using the finite element method

2011 ◽  
Author(s):  
B. M. A. Rahman ◽  
H. Tanvir ◽  
N. Kejalakshmy ◽  
A. Quadir ◽  
K. T. V. Grattan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Surface Plasmon ◽  
The Finite Element Method ◽  
Plasmon Modes ◽  
Element Method

Characterization of metal-clad TE/TM mode splitters using the finite element method

1997 ◽  
Vol 15 (12) ◽  
pp. 2264-2269 ◽  
Author(s):  
M. Rajarajan ◽  
C. Themistos ◽  
B.M.A. Rahman ◽  
K.T.V. Grattan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
The Finite Element Method ◽  
Tm Mode ◽  
Element Method

Non-linear thermal analysis of light concrete hollow brick walls by the finite element method and experimental validation

2006 ◽  
Vol 26 (8-9) ◽  
pp. 777-786 ◽  
Author(s):  
J.J. del Coz Díaz ◽  
P.J. García Nieto ◽  
A. Martín Rodríguez ◽  
A. Lozano Martínez-Luengas ◽  
C. Betegón Biempica
Keyword(s):  
Finite Element Method ◽  
Thermal Analysis ◽  
Finite Element ◽  
Experimental Validation ◽  
The Finite Element Method ◽  
Non Linear ◽  
Hollow Brick ◽  
Element Method
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