Results 21 to 30 of about 40,906,659 (271)
Machines, 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
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High-Frequency Position Servo Control of Hydraulic Actuator with Valve Dynamic Compensation
Actuators, 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
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An adjustable parameter water hammer wave hose testbench [PDF]
E3S 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
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Local versus general anesthesia for transcatheter aortic valve implantation (TAVR)- systematic review and meta-analysis [PDF]
, 2014 The hypothesis of this study was that local anesthesia with monitored anesthesia care (MAC) is not harmful in comparison to general anesthesia (GA) for patients undergoing Transcatheter Aortic Valve Implantation (TAVR).TAVR is a rapidly spreading ...
Webb, J +32 more
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Idle Operation with Low Intake Valve Lift in a Port Fuel Injected Engine [PDF]
, 2013 Reducing fuel consumption is a prime objective in the automotive industry in order to meet regulatory and customer demands. Variable valve actuation offers many opportunities for improving the spark ignition engine’s performance in areas such as fuel ...
CLENCI, Adrian +12 more
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Detection of diesel engine valve clearance by acoustic emission. [PDF]
, 2009 This paper investigated, using experimental method, the suitability of acoustic emission (AE) technique for the condition monitoring of diesel engine valve faults.
Gu, Fengshou +3 more
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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 +6 more
doaj +1 more source
Microflow valve control system design [PDF]
, 2011 A design synthesis for a microflow control system is presented based on the interrogation of an analytical model, testing, and observation. The key issues relating to controlling a microflow using a variable geometry flow channel are explored through the
Zante, Remi Christophe, Yan, Xiu
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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 +7 more
openaire +2 more sources
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
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