Results 21 to 30 of about 321,923 (285)

AN APLICATION FOR THE SELECTION AND SIZING OF CONTROL VALVE FOR CONTROL LOOP [PDF]

Romanian Journal of Petroleum & Gas Technology, 2023
The paper presents the research of the author in developing an application for sizing and selection of control valves for typical process control applications.
Cristina Popa
doaj   +1 more source

Enhancement of synthetic jets by means of an integrated valve-less pump Part II. Numerical and experimental studies [PDF]

, 2005
The paper studies the performance of the new fluid jet actuator based on the novel principle of the generation of fluid jet, which has been presented in [Z. Travnicek, A.I. Fedorchenko, A.-B.
Tesar, V., Travniceka, Z., Wang, A.
core   +1 more source

Cost effective combined axial fan and throttling valve control of ventilation rate [PDF]

, 2004
This paper is concerned with Proportional-Integral-Plus (PIP) control of ventilation rate in mechanically ventilated agricultural buildings. In particular, it develops a unique fan and throttling valve control system for a 22m3 test chamber, representing
Berckmans, D., Chotai, Arun, Leigh, P., Taylor, C. James, Vranken, E., Young, Peter C.   +5 more
core   +1 more source

Subdynamic asymptotic behavior of microfluidic valves [PDF]

, 2005
Decreasing the Reynolds number of microfluidic no-moving-part flow control valves considerably below the usual operating range leads to a distinct “subdynamic” regime of viscosity- dominated flow, usually entered through a clearly defined transition. In
Allen, R.W.K., Low, Y.Y., Tesar, V., Tippetts, J.R.   +3 more
core   +1 more source

A paper-based microfluidic platform with shape-memory-polymer-actuated fluid valves for automated multi-step immunoassays [PDF]

Microsystems & Nanoengineering, 2019
AbstractSmart fluid manipulation with automatically controlled paper valves will enable automated and multi-step immunoassays on paper-based microfluidic devices. In this work, we present an integrated paper-based microfluidic platform with shape-memory polymer (SMP)-actuated fluid valves capable of automated colorimetric enzyme-linked immunosorbent ...
Hao Fu, Pengfei Song, Qiyang Wu, Chen Zhao, Peng Pan, Xiao Li, Nicole Y. K. Li-Jessen, Xinyu Liu   +7 more
openaire   +2 more sources

Improvement of the Segment‐Valve Model for Solving the Valve Isolation Problem and Evaluating the Reliability of Water Distribution Networks

Water Resources Research, 2023
The segment‐valve graph model is widely used in the reliable evaluation of water distribution networks (WDNs). However, as an undirected graph, a segment‐valve graph does not express the upstream‐downstream relationships between segments, which hinders ...
Zhen Hu, Haiming Jiao, Qingfeng Guan, Wen Zeng, Zhijiang Yang, Yang Zhou, Feng Xu   +6 more
doaj   +1 more source

Study on Dynamic and Static Performance of a Micro Digital Hydraulic Valve

Micromachines, 2022
Previous researchers mostly carried out simulation research and scattered experimental research on the static and dynamic characteristics of the digital valve, but did not form a systematic and in-depth study on the characteristics of the valve. Based on
Meisheng Yang
doaj   +1 more source

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

Biosensors 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, Bowei, Li, Na, Zhou, Xiaoyan, Wang, Dongmei, Deng, Liqiang, Luo, Lingxin, Chen   +6 more
openaire   +2 more sources

Fluid-structure interaction simulation of prosthetic aortic valves : comparison between immersed boundary and arbitrary Lagrangian-Eulerian techniques for the mesh representation [PDF]

, 2016
In recent years the role of FSI (fluid-structure interaction) simulations in the analysis of the fluid-mechanics of heart valves is becoming more and more important, being able to capture the interaction between the blood and both the surrounding ...
AJ Gravel, Alessandra M. Bavo, AM Bavo, BE Griffith, BF Stewart, CS Peskin, CT Otto, F Bakhtiary, F Sturla, Francesco Iannaccone, G Marom, GA Holzapfel, Giorgia Rocatello, H Kim, H Mohammadi, H Reul, I Borazjani, Iman Borazjani, J De Hart, J De Hart, J Degroote, JA Stella, Jan Vierendeels, Joris Degroote, KD Lau, KS Kunzelman, L Ge, L Taelman, M Astorino, ND Dos Santos, P Kleine, P Segers, Patrick Segers, PN Jermihov, R Gnyaneshwar, R Lohner, R Van Loon, RG Leyh, S Annerel, S Chandra, S Nobari, W Wu   +41 more
core   +4 more sources

Performance evaluation on mitral valve motion feature tracking using Kanade-Lucas- Tomasi (KLT) algorithm based eigenvalue measurement [PDF]

, 2019
This paper provides the explanation of the concepts of point tracking technique to be implemented in mitral valve locating in video frames. Object tracking has been used for many applications in motion-based recognition and monitoring.
Ibrahim, Nabilah, Mahadi, Lina Farhana, S.M Johan, Muhammad Haniff, Zaluwi, Mohd Thariq   +3 more
core   +1 more source