Results 121 to 130 of about 182,357 (309)
Zhongguo dianliAddressing the issue of high-frequency oscillations in converter stations during flexible DC grid integration and transmission, a suppression scheme combining active and passive damping, along with a method for optimizing the design of its parameters, is
Xiao ZHOU +6 more
doaj +1 more source
Active vibration damping of the Space Shuttle remote manipulator system [PDF]
The feasibility of providing active damping augmentation of the Space Shuttle Remote Manipulator System (RMS) following normal payload handling operations is investigated.
Demeo, Martha E. +2 more
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Advanced Materials, EarlyView.We have developed an intracellular crystalline polymerization strategy involving acid‐catalyzed imine condensation to synthesize COFs in lysosomes. The generation of COFs in lysosomes damages their integrity, activates iron species, and induces immunogenic ferroptosis, thereby enhancing antitumor immunotherapy.
Qun Guan +5 more
wiley +1 more source
Active Damping of Air-backed Ultrasonic Transducers Using Arbitrary Waveform Generators. [PDF]
Proc IEEE Ultrason Symp, 2020 Yen J, Nussbaum Z.
europepmc +1 more source
, 2016 The concept of hybrid active-passive constrained layer damping treatments, which consists of viscoelastic materials, piezoelectric materials and elastic constraining materials, was proposed in the 1990s in order to ameliorate problems of instability in ...
Koh, Byungjun +3 more
core
Chiral Acoustic Phonon and Conservation of Pseudoangular Momentum in α‐Quartz
Advanced Materials, EarlyView.Chiral acoustic phonons in α‐quartz are probed via Brillouin light scattering, exploiting the photon's helicity and the crystal's handedness. The interaction obeys a selection rule arising from pseudoangular momentum conservation, enabling direct optical access to phonon chirality in nonsymmorphic crystals.
Changsoo Kim +8 more
wiley +1 more source
Estimating Inducer Blade Damping in Water with On-Blade Strain Measurements [PDF]
This paper describes the testing, methodology, and results for estimating critical damping ratios of inducer blade structural natural frequencies. A sub-scale inducer water flow test was performed with on-blade strain gauge measurements.
Mulder, Andrew, Skelley, Stephen
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Advanced Materials, EarlyView.Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim +17 more
wiley +1 more source
Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection
Advanced Materials, EarlyView.Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel +7 more
wiley +1 more source
Prediction and improvement of the maximum achievable damping with collocated control [PDF]
, 2003 Active damping can be realised robustly through the use of a position actuator, a collocated force sensor, and control based on ‘Integral Force Feedback’ (IFF).
Holterman, Jan, Vries, Theo J.A. de
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