Diaphragm displacement

Conventionally, ultrasonographic assessment of diaphragm contractility has involved measuring respiratory changes in diaphragm thickness (thickening fraction) using B-mode or caudal displacement with M-mode.

8p viottohahn 30-03-2022 14 1   Download

In this paper, we present simulation and evaluation of sensitivity of electrical and mechanical effects of MEMS based capacitive pressure sensor with rectangle diaphragm using COMSOL Multiphysics. This includes diaphragm deflection, sensitivity and linearity analysis, capacitance and thermal considerations. Capacitance values are plotted under uniform external pressure 10kPa. Selected materials include silicon and carbon, acknowledging that carbon has shown the best and steady result. Simulation results also show how the capacitance and diaphragm deformation varies under increasing pressure.

6p sotritu 18-09-2021 13 1   Download

This paper predicts the displacement of the diaphragm walls in deep excavations of Hk = 12m in Hanoi accounting for seismic loading. The walls are stably sustained using soil nail systems, struts, and top-down method. A finite element analysis software, PLAXIS 2D, is utilized to model the systems.

6p vimante2711 05-03-2020 22 0   Download