Results 41 to 50 of about 37,008,848 (268)

The strategy of antibody-free biomarker analysis by in-situ synthesized molecularly imprinted polymers on movable valve paper-based device [PDF]

open access: yesBiosensors and Bioelectronics, 2019
In this work, we provided a novel strategy of antibody-free biomarker analysis by in-situ synthesized molecularly imprinted polymers (MIPs) on movable valve microfluidic paper-based electrochemical device (Bio-MIP-ePADs) for clinical detection of biomarkers.
Ji, Qi   +6 more
openaire   +2 more sources

Vibration-based identification of engine valve clearance using a convolutional neural network [PDF]

open access: yesArchives of Transport, 2022
Contemporary operation-related requirements for combustion engines force the necessity of ongoing assessment of their in operation technical condition (e.g. marine engines). The engine efficiency and durability depend on a variety of parameters.
Maciej Tabaszewski   +2 more
doaj   +1 more source

Relation of Bicuspid Aortic Valve Morphology to the Dilatation Pattern of the Proximal Aorta: Focus on the Transvalvular Flow

open access: yesCardiology Research and Practice, 2012
Whether the dilatation of proximal aorta in patients with bicuspid aortic valve is secondary to hemodynamic effects related to the abnormal aortic valve or a primary manifestation of the genetic disorder remains controversial.
Evaldas Girdauskas   +3 more
doaj   +1 more source

Virtual Design and Dynamic Simulation of Valve Trains

open access: yesMATEC Web of Conferences, 2017
The valve train plays an important role in the engine, which has a great influence on engine performance and reliability. In this paper, valve trains are studied based on multi-body dynamics theory and virtual prototype technology.
Xuan Guantao, Shao Yuanyuan
doaj   +1 more source

Optimizing the shape of the prosthetic aortic leaflet valve

open access: yesComputer Assisted Methods in Engineering and Science, 2022
The object under study reported on in this paper was an aortic valve based on a natural aortic valve as the original. Simulations were carried out to examine the functioning of a valve which was loaded with varying pressure until a buckling of the ...
Piotr Konderla, Krzysztof Patralski
doaj  

Application of Wireless Sensor Based on Sound Localization in Safety Valve Condition Monitoring of Chemical Plant

open access: yesChemical Engineering Transactions, 2017
In recent years, accidents occurred in the chemical plant are linked to the failure of the safety valve or the excessive mechanical stress, and the reasons are mainly related to the safety of the safety valve, piping, support selection and the stress ...
Jizhao Ma, Jianqing Lu
doaj   +1 more source

Design Consideration Investigation of Soft-Valve Pipe

open access: yesMicromachines, 2022
This paper focuses on investigating the configuration and parameter selection of the silicone pipe in soft valve. According to the working principles of soft valve, five configurations and four structural parameters of silicone pipes are proposed and ...
Xu Yang   +4 more
doaj   +1 more source

Non-linear finite element analyses of the aortic heart valve [PDF]

open access: yes, 2004
Includes bibliographical references.Finite element models of the aortic heart valve have been successfully used in the past to gain insight into the mechanics of the valve and to aid in understanding of valve failure.
Koch, Thorsten M
core   +1 more source

Quantitative Evaluation on Valve Leakage of Reciprocating Compressor Using System Characteristic Diagnosis Method

open access: yesApplied Sciences, 2020
High impact and strong noise complicate the response of reciprocating compressor (RC). It requires a complex signal processing method that is a single response-based or excitation-based fault diagnosis method applied to RC valve leakage fault diagnosis ...
Liubang Han   +4 more
doaj   +1 more source

Aircraft Anti-Skid Brake Control Based on High-Speed on-off Valve

open access: yesMATEC Web of Conferences, 2015
Aircraft hydraulic brake system usually use pressure servo valve for anti-skid brake control. As pressure servo valve realizes the pressure closed loop by hydraulic feedback loop, this structure increased the complexity of the processing and ...
Li Wei, Zhang Hu, Huang Xiaoya
doaj   +1 more source

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