Results 1 to 10 of about 670,280 (308)

An Electro-Mechanical Device for Solving Non-Linear Differential Equations

open access: yesJournal of Applied Physics, 1949
This paper introduces an electro-mechanical device for solving some non-linear differential equations. Solutions are obtained with sufficient accuracy and speed so that an entire domain of solutions can be quickly investigated. The procedure not only avoids the limited point of view inherent in the solutions obtained by most mechanical means, but also ...
C. A. Ludeke
openaire   +3 more sources

Iso-osmotic contrast filling of an artificial urinary sphincter is a safe and effective tool for diagnosis of mechanical failure [PDF]

open access: yesInvestigative and Clinical Urology
Purpose: Recurrent stress incontinence (SUI) in patients with an artificial urinary sphincter (AUS) is a diagnostic challenge. History, physical exam and office cystoscopy are often inadequate for determining the cause of device related issues.
Maraika O. Robinson   +2 more
doaj   +2 more sources

Design, Analysis and Simulation of a MEMS-Based Gyroscope with Differential Tunneling Magnetoresistance Sensing Structure

open access: yesSensors, 2020
The design, analysis, and simulation of a new Micro-electromechanical System (MEMS) gyroscope based on differential tunneling magnetoresistance sensing are presented in this paper.
Cheng Li, Bo Yang, Xin Guo, Xinru Chen
doaj   +2 more sources

Electrostatic Micro-Electro-Mechanical-Systems (MEMS) Devices: A Comparison Among Numerical Techniques for Recovering the Membrane Profile

open access: yesIEEE Access, 2020
In this work, numerical techniques based on Shooting procedure, Relaxation scheme and Collocation technique have been used for recovering the profile of the membrane of a 1D electrostatic Micro-Electro-Mechanical-Systems (MEMS) device whose analytic ...
Mario Versaci   +2 more
doaj   +2 more sources

Fluid Flow Mechanical Stimulation-Assisted Cartridge Device for the Osteogenic Differentiation of Human Mesenchymal Stem Cells [PDF]

open access: yesMicromachines, 2021
Human mesenchymal stem cells (hMSCs) have the potential to differentiate into different types of mesodermal tissues. In vitro proliferation and differentiation of hMSCs are necessary for bone regeneration in tissue engineering. The present study aimed to design and develop a fluid flow mechanically-assisted cartridge device to enhance the osteogenic ...
Ki-Taek Lim   +3 more
openaire   +3 more sources

Design of grading and sorting mechanical system for Pleurotus eryngii based on differential separation principle

open access: yesShipin yu jixie, 2023
Objective: In order to effectively solve the problems of low efficiency, quality fluctuation and increasing labor cost of artificial sorting. Methods: A mechanical system based on differential separation principle was designed to complete the ...
LIN Xin-hua   +4 more
doaj   +1 more source

Analysis and Simulation of the Electrical-Differential System of a Grab-Ship-Unloader-Crane

open access: yesIEEE Access, 2021
In the field of port handling for bulk-cargo with heavy load and high speed, the differential gear box is usually used for towing wire ropes, and then realizing the Horizontal transport and vertical unloading of goods. However, the design and manufacture
Yuantao Sun   +4 more
doaj   +1 more source

Differential Pressure Spirometry for Mechanical Ventilation Using Dichotomic Search

open access: yesIEEE Transactions on Instrumentation and Measurement, 2021
In invasive mechanical ventilation (IMV), it is critical that the flow value is estimated correctly, as it is used as a trigger variable for ventilatory assistance.
N. A. Rodríguez-Olivares   +2 more
semanticscholar   +1 more source

Electrostatic Circular Membrane MEMS: An Approach to the Optimal Control

open access: yesComputation, 2021
The recovery of the membrane profile of an electrostatic micro-electro-mechanical system (MEMS) is an important issue, because, when an external electrical voltage is applied, the membrane deforms with the risk of touching the upper plate of the device ...
Mario Versaci, Francesco Carlo Morabito
doaj   +1 more source

Design and Fabrication of a Differential MOEMS Accelerometer Based on Fabry–Pérot Micro-Cavities [PDF]

open access: yesIEEE Sensors Journal, 2022
In this paper, a differential micro-opto-electro-mechanical system (MOEMS) accelerometer based on the Fabry-Pérot (FP) micro-cavities is presented. The optical system of the device consists of two FP cavities and the mechanical system is composed of a ...
M. Rahimi   +4 more
semanticscholar   +1 more source

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