Results 1 to 10 of about 321,923 (285)

Reversible Thermo-Responsive Valve for Microfluidic Paper-Based Analytical Devices

open access: yesMicromachines, 2022
Fluid control on a paper channel is necessary for analysis with multiple reagents, such as enzyme-linked immunosorbent assay (ELISA) in microfluidic paper-based analytical devices (µPADs).
Hiroki Toda   +7 more
doaj   +3 more sources

A Parametric Study on a Paper-Based Bi-Material Cantilever Valve

open access: yesMicromachines, 2022
The novel paper-based Bi-Material Cantilever (B-MaC) valve allows the autonomous loading and control of multiple fluid reagents which contributes to the accurate operation of paper-based microfluidic devices utilized for biological and chemical sensing ...
Hojat Heidari-Bafroui   +6 more
doaj   +4 more sources

A software and hardware design scheme of intelligent valve positioner [PDF]

open access: yesE3S Web of Conferences, 2021
Valve positioner is the core component of the pneumatic control valve. A new software and hardware design scheme of intelligent valve positioner is presented in this paper.
Xu Haiming, Zhang Lanzhu
doaj   +1 more source

Paper-Based Bi-Material Cantilever Actuator Bending Behavior and Modeling

open access: yesMicromachines, 2023
In this paper, the behavior of the Bi-Material Cantilever (B-MaC) response deflection upon fluidic loading was experimentally studied and modeled for bilayer strips. A B-MaC consists of a strip of paper adhered to a strip of tape.
Gordon Chen   +7 more
doaj   +1 more source

Modeling of Paper-Based Bi-Material Cantilever Actuator for Microfluidic Biosensors

open access: yesBiosensors, 2023
This research explores the dynamics of a fluidically loaded Bi-Material cantilever (B-MaC), a critical component of μPADs (microfluidic paper-based analytical devices) used in point-of-care diagnostics.
Ashutosh Kumar   +4 more
doaj   +1 more source

Pressure losses reduction in a steam turbine compact valve [PDF]

open access: yesEPJ Web of Conferences, 2022
Valves are integral parts of modern steam turbines. They provide flexible operations and fast load changes which have become more often due to the increasing share of renewable energy.
Slama Vaclav   +6 more
doaj   +1 more source

Analysis and Compensation Control of Engine Valve Response Delay Based on the Electro-Hydraulic Variable Valve Actuator

open access: yesMachines, 2022
The time delay of variable valve actuators has a significant influence on engine valve lift tracking performance. For camless hydraulic valve actuators, engine valve response is affected by many factors, such as friction and control valve response.
Jian Li   +4 more
doaj   +1 more source

An adjustable parameter water hammer wave hose testbench [PDF]

open access: yesE3S Web of Conferences, 2021
In this paper, based on the servo valve controlled pressure cylinder, a scheme of hydraulic pipeline adjustable parameters water hammer wave test system is proposed.
Wang Zhe   +3 more
doaj   +1 more source

High-Frequency Position Servo Control of Hydraulic Actuator with Valve Dynamic Compensation

open access: yesActuators, 2022
Hydraulic actuators play an important role in various industries. In the last decades, to improve system performance, some advanced control methods have been developed.
Jian Li   +3 more
doaj   +1 more source

Investigation on recognition method of acoustic emission signal of the compressor valve based on the deep learning method

open access: yesEnergy Reports, 2021
The valve affects the reliability and efficiency of the reciprocating compressor. The Acoustic Emission (AE) technology is applied to nondestructive measurement of compressor valve movement in this paper. Furthermore, the AE signal is analyzed to predict
Yangyang Zhang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy