Results 71 to 80 of about 8,512,124 (296)

Torsional oscillation damping in wind turbines with virtual synchronous machine‐based frequency response

open access: yesWind Energy, 2022
In the quest of improving the frequency response capability of wind turbines, control solutions trying to emulate synchronous machines have been proposed.
Liang Lu   +2 more
doaj   +1 more source

Disorder‐Broadened Topological Hall Phase and Anomalous Hall Scaling in FeGe

open access: yesAdvanced Functional Materials, EarlyView.
By systematically introducing defects into FeGe via ion‐beam modification, we demonstrate that disorder broadens the temperature regime over which the topological Hall effect ‐ a signature of skyrmions or other chiral textures — appears, while also increasing its magnitude.
Chaman Gupta   +11 more
wiley   +1 more source

Non-Fermi-liquid behavior and anomalous suppression of Landau damping in layered metals close to ferromagnetism [PDF]

open access: yes, 2015
Financial support from the EPSRC (U.K.) under Grants No. EP/G03673X/1 (S. P. R.) and No. EP/I031014/1 (C. A. H.) is acknowledged.We analyze the low-energy physics of nearly ferromagnetic metals in two spatial dimensions using the functional ...
Hooley, Chris, Ridgway, Samuel
core   +1 more source

puzzlef/pagerank-adjust-damping-factor: Comparing the effect of using different values of damping factor, with PageRank

open access: yes, 2021
Part of the report Adjusting PageRank parameters and Comparing results. -- Comparing the effect of using different values of damping factor, with PageRank (pull, CSR). Adjustment of the damping factor α is a delicate balancing act. For smaller values of
Subhajit Sahu
core   +1 more source

Vibration Reduction Analysis of High-speed Train Aluminum Profiles Based on Add-on Wedge-shaped Acoustic Damping Structure

open access: yesChengshi guidao jiaotong yanjiu
ObjectiveVibration and noise generated by high-speed train body profiles significantly impact passenger comfort and surrounding environmental noise level.
Kun LIU   +5 more
doaj   +1 more source

Tailor-made 3D printing TPU/PLA composites for damping and energy absorption

open access: yesMaterials & Design
Commercially available thermoplastic polyurethane (TPU) materials for 3D printing often exhibit inadequate damping properties, limiting their application in damping scenarios.
Ruichao Zu   +7 more
doaj   +1 more source

Mechanical Programming of PEGDA‐β‐CD Polyrotaxane‐Based Hydrogels via Host–Guest Molecular Recognition

open access: yesAdvanced Functional Materials, EarlyView.
A mechanically programmable hydrogel for tissue engineering is developed by modulating the molecular threading density of poly(ethylene glycol) diacrylate‐β‐cyclodextrin (PEGDA‐β‐CD) polyrotaxane and combining it with β‐CD‐modified gelatin. The polyrotaxane‐guided transition from disordered pores to laminar microstructures enables precise tuning ...
Shiyi Chen   +10 more
wiley   +1 more source

Research on Impact Performance of Hydraulic Rock Drill with Floating Characteristics of Double Damping System

open access: yesShock and Vibration, 2019
As a technological innovation of high-power hydraulic rock drill, double damping system has a very important effect on impact performance. The double damping system is a floating mechanism.
Yelin Li, Zeng Bin, Yi Tu
doaj   +1 more source

Active Control Method Based on Equivalent Stiffness and Damping Coefficient for an Electromagnetic Isolation System

open access: yesApplied Sciences, 2020
For improving the performance of an electromagnetic isolation system with reasonable parameters and avoid the parameter tuning problem of a PID controller, an active control method is put forward based on equivalent stiffness and damping coefficient.
Lei Zhang, Xiangtao Zhuan
doaj   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

open access: yesAdvanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari   +4 more
wiley   +1 more source

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