Results 21 to 30 of about 182,357 (309)

Energy Efficient Active Vibration Damping [PDF]

open access: yesLinköping Electronic Conference Proceedings, 2013
Mining machines are subjected to severe vibrations during their operation. If we succeed to damp some of those vibrations then we have succeed to reduce the dynamic load of the machine and to improve operator comfort and productivity. The main idea for the research done in this paper is to investigate possible improvements in active vibration damping ...
Emil Zaev, Gerhard Rath, Hubert Kargl
openaire   +1 more source

Review of Magnetorheological Damping Systems on a Seismic Building

open access: yesApplied Sciences, 2021
Building structures are vulnerable to the shocks caused by earthquakes. Buildings that have been destroyed by an earthquake are very detrimental in terms of material loss and mental trauma.
Bhre Wangsa Lenggana   +5 more
doaj   +1 more source

Control of the Weakly Damped System with the Embedded System Support

open access: yesAdvances in Electrical and Electronic Engineering, 2018
This paper deals with the experimental verification of the importance of embedded systems with an applied MEMS sensor in controlling weakly damped systems. The aim is to suppress actively residual oscillations.
Marek Paskala   +2 more
doaj   +1 more source

Passiv damping on spacecraft sandwich panels [PDF]

open access: yes, 2007
For reusable and expendable launch vehicles as well as for other spacecraft structural vibration loads are safety critical design drivers impacting mass and lifetime. Here, the improvement of reliability and safety, the reduction of mass, the extension
Panning, L.   +3 more
core  

Production of a sterile species via active-sterile mixing: an exactly solvable model

open access: yes, 2007
The production of a sterile species via active-sterile mixing in a thermal medium is studied in an exactly solvable model. The \emph{exact} time evolution of the sterile distribution function is determined by the dispersion relations and damping rates ...
A. Boyarsky   +10 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

A Capacitor-Current-Feedback Active Damping Control Strategy With Phase Lead Compensation for LCL-Type Grid-Connected Inverter

open access: yesIEEE Access
Capacitor-current-feedback (CCF) active damping is widely used to deal with the hazard of LCL filter resonance in the grid-connected inverter based on either phase lead or lag compensation, and the effect of active damping on open-loop of the control ...
Xieyan Zhang, Yixuan Xie, Renwei Wu
doaj   +1 more source

Semi-Active System of Vehicle Vibration Damping

open access: yesApplied Sciences, 2021
This article discusses the vibration of a vehicle equipped with four semi-active dampers. The friction forces generated in these dampers have crucial influence on the intensity of the vehicle vibration.
Wiesław Grzesikiewicz, Michał Makowski
doaj   +1 more source

The use of active controls to augment rotor/fuselage stability [PDF]

open access: yes, 1985
The use of active blade pitch control to increase helicopter rotor/body damping is studied. Control is introduced through a conventional nonrotating swashplate. State variable feedback of rotor and body states is used.
Straub, F. K., Warmbrodt, W.
core   +1 more source

Decoherence processes during active manipulation of excitonic qubits in semiconductor quantum dots

open access: yes, 2004
Using photoluminescence spectroscopy, we have investigated the nature of Rabi oscillation damping during active manipulation of excitonic qubits in self-assembled quantum dots.
A. H. MacDonald   +11 more
core   +1 more source

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