Results 51 to 60 of about 32,465 (299)

Nonlinear vibrations of a stroke-saturated inertial actuator [PDF]

, 2013
Proof-mass actuators are typically used to supply an external control force to a structure,for the purpose of vibration suppression. These devices comprise a proof-mass suspended in a magnetic field that is accelerated in order to provide a reaction ...
Wilmshurst, L.I., Ghandchi Tehrani, M., Elliott, S.J.   +2 more
core  

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

First-Order-Delay-Controlled Slip-Angular Frequency for the Dynamic Performance of an Indirect-Field-Orientation-Controlled Induction Motor-Driving Inertial Load

IEEE Open Journal of Industry Applications, 2023
Sophisticated torque-current control is required in inertial load-drive applications, such as in electric vehicles and electric railway vehicles, over a wide speed range.
Masaki Nagataki, Keiichiro Kondo, Osamu Yamazaki, Kazuaki Yuki   +3 more
doaj   +1 more source

Energy yield losses due to emulated inertial response with wind turbines [PDF]

, 2014
In several countries, the wind power penetration increased tremendously in recent years. As the current wind turbines do not participate in inertial response nor primary control, this may compromise the proper functioning of the power system.
Jan Van de Vyver, Jeroen D. M. De Kooning, Bart Meersman, Vandoorn, Tine, De Kooning, Jeroen, Tine L. Vandoorn, Meersman, Bart, Vandevelde, Lieven, Lieven Vandevelde, Van de Vyver, Jan   +9 more
core   +1 more source

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

Molecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary, Jose Javier Bravo‐Cordero   +1 more
wiley   +1 more source

Robust Frequency Control of Microgrids: A Mixed H2/H∞ Virtual Inertia Emulation

International Transactions on Electrical Energy Systems, 2023
This article proposes a robust inertial controller for converter-based distributed generators employed in low-inertia power systems like microgrids. The increasing penetration level of renewable energy sources based on power electronics converters in ...
Shahryar Maleki, Javad Nikoukar, Mohammad Hassan Tousifian   +2 more
doaj   +1 more source

Wind-Storage Combined Virtual Inertial Control Based on Quantization and Regulation Decoupling of Active Power Increments

Energies, 2022
With the increasing proportion of wind turbines in power grids, they are required to have capabilities of active and efficient virtual inertial response to maintain grid frequency stability. However, the virtual inertial control methods currently used in
Dezhi Ma, Wenyi Li
doaj   +1 more source

Inertial response of isolated power networks with wind power plants [PDF]

, 2019
The constant increase of power generation provided by renewable energy source (RES) power plants is causing a progressive reduction of the overall inertia of the power systems.
M. Bongiorno, Musca R., Ippolito, M. G., M.G. Ippolito, R. Musca, Favuzza S., Bongiorno, Massimo, Ippolito M. G., Favuzza, S., S. Favuzza, G. Zizzo, Zizzo G., Zizzo, G., Bongiorno M., Musca, R.   +14 more
core   +1 more source

Validity of a Wearable Digital Insole for Assessing Gait ON and OFF in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Gait impairment is a distinctive symptom of Parkinson's disease that negatively impact mobility. We assessed the validity of wearable digital insoles against a validated reference gait analysis system for measuring select gait characteristics in patients with Parkinson's disease. Methods A comparative analysis between digital insoles
Deborah A. Hall, Kimberly Kwei, Rolando J. Acosta, Bharatkumar Koyani, Erin Robertson, Pratyush Rai, Roland Barge, Emily Timm, Nicollette L. Purcell, Natasha Desai, Dhanesh Patel, Ana‐Maria Visoiu‐Knapp, Samuel Stuart, Rinol Alaj, Matthew F. Wipperman, Oren Levy, Joan A. O'Keefe   +16 more
wiley   +1 more source

Nonequilibrium Linear Response for Markov Dynamics, II: Inertial Dynamics [PDF]

Journal of Statistical Physics, 2010
We continue our study of the linear response of a nonequilibrium system. This Part II concentrates on models of open and driven inertial dynamics but the structure and the interpretation of the result remain unchanged: the response can be expressed as a sum of two temporal correlations in the unperturbed system, one entropic, the other frenetic.
BAIESI, MARCO, Eliran Boksenbojm, Christian Maes, Bram Wynants   +3 more
openaire   +5 more sources