Results 1 to 10 of about 80,855 (244)

Heat-actuated valve implementation in a point-of-care, paper-based microfluidic device for infectious disease detection. [PDF]

open access: yesPLoS ONE
Paper-based microfluid devices have great potential to perform complex assays like nucleic acid amplification tests (NAATs) in point-of-care (POC) and low resource settings, but have not often succeeded because there is frequently need for affordable and
Kevin P Jiang   +2 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

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 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

Automated device for multi-stage paper-based assays enabled by an electroosmotic pumping valve

open access: yesLab on a Chip, 2022
Valving mechanism based on electroosmotic-flow bursting of a hydrophobic barrier to enable the performance of multi-step assays on paper-based devices.
Baruch Rofman   +6 more
openaire   +2 more sources

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

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