Results 31 to 40 of about 1,179,786 (405)

Active vibration control device

The Journal of the Acoustical Society of America, 1993
An active vibration control device for controlling vibration in a cantilevered member (12) and a method for the same are disclosed. The device is comprised of a cantilevered member (12) having a longitudinal axis (13) comprising a sensor (92) mounted near the free end of the member (12) to measure motion of the member (12) in a transverse direction and
openaire   +2 more sources

Review on Development of High-Static–Low-Dynamic-Stiffness Seat Cushion Mattress for Vibration Control of Seating Suspension System

Applied Sciences, 2020
This review focuses on studying passive vibration isolation techniques and their applications. Advantages and disadvantages of different vibration isolation techniques will be compared in order to find an innovative method to reduce seating suspension ...
Linchuan Guo, Xu Wang, Rang-Lin Fan, Fengrong Bi   +3 more
doaj   +1 more source

An optimized tuned mass damper/harvester device [PDF]

, 2014
Much work has been conducted on vibration absorbers, such as tuned mass dampers (TMD), where significant energy is extracted from a structure. Traditionally, this energy is dissipated through the devices as heat.
Burrow, Steve G, Cammarano, Andrea, Clare, Lindsay R, Gonzalez-Buelga, Alicia, Inman, Daniel J, Neild, Simon A   +5 more
core   +3 more sources

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Experimental investigation of spillover effect in system of active vibration control [PDF]

FME Transactions, 2014
Piezoelectric actuators are widely used in structural systems for active vibration control with the aim to enhance the performance of systems. The developed system of active vibration control consists of active structure, controller and high voltage ...
Jovanović Miroslav M., Simonović Aleksandar M., Zorić Nemanja D., Lukić Nebojša S., Stupar Slobodan N., Petrović Ana S., Wei Li   +6 more
doaj  

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Active Vibration Control Through Quasi-Polynomial Based Controller

IFAC-PapersOnLine, 2019
Abstract This paper is about the problem of the vibration damping for a thin flexible beam, with an Euler-Bernoulli configuration, thanks to a new type of output feedback controller based on delayed proportional actions. The considered beam is equipped with two piezoelectric patches: one of them works as a sensor and the other as an actuator.
Tliba, Sami, Boussaada, Islam, Bedouhene, Fazia, Niculescu, Silviu-Iulian   +3 more
openaire   +1 more source

Research on the controller of an active vibration isolation unit for underwater crushing operations

Scientific Reports
Since passive vibration isolation is used to solve the vibration problem of the underwater crushing device is difficult to isolate the low-frequency vibration effectively, and most of the active control methods usually focus on cutting down the vibration
Lijun Wang, Hui Wei, Shitong Jiang, Zeyong Zhao, Xinxin Wang, Jianyong Zhang, Ruixue Cheng, Liyang Shang, Bin Miao   +8 more
doaj   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Piezo actuator layout optimization with SRS constraint for semi-active vibration control system

Nihon Kikai Gakkai ronbunshu, 2015
Vibration suppression is one of the most important problems in the design and operation of space structures. Due to limited launch capabilities, such structures need to be extremely light-weight although some structures succumb to vibrations because of ...
Yohei NAKANO, Akihiro TAKEZAWA, Kanjuro MAKIHARA, Mitsuru KITAMURA   +3 more
doaj   +1 more source