Results 51 to 60 of about 30,307 (306)
Prediction of contra-rotating open rotor broadband noise in isolated and installed configurations
, 2014 Broadband noise is a significant part of the noise emitted by contra-rotating open rotors. Several noise sources can contribute to the total broadband sound field, with the most dominant ones probably being trailing edge noise, rotor-wake interaction ...
Zhang, Xin +17 more
core +1 more source
Advanced Materials, EarlyView.Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang +5 more
wiley +1 more source
Analysis of SSR characteristics in DFIGs based wind farm integrated to a series-compensated network
The Journal of Engineering, 2019 To improve transmission capacity and stability margin of the power system, the doubly fed induction generators (DFIGs) based wind farm is transmitted over lines equipped with series compensation (fixed capacitors).
Long Wang +4 more
doaj +1 more source
Multi‐objective optimisation of the HSPMM rotor based on the multi‐physics surrogate model
IET Electric Power Applications, 2021 High‐speed permanent magnetic machine (HSPMM) is attracting more attention due to its high power density, compact size, small rotating inertia, and rapid response capability.
Rui Dai +5 more
doaj +1 more source
Nonlocal Metaspire: A Scalable Elastic Material Platform With Decoupled Mechanical Modes
Advanced Materials, EarlyView.Nonlocal Metaspire introduces sequential rotation to realize wider scalability in implementing complex nonlocal couplings in elastic metamaterials while suppressing unintended mode coupling. Numerical results clarify the underlying wave motions, demonstrate mode‐decoupled roton and maxon formation, and support a straightforward extension to higher ...
Seung Han Kim +3 more
wiley +1 more source
The Journal of Engineering, 2019 The modern power system is becoming more complex and dynamic because of increasing penetration of renewable energy resources, operating closer to system capacity for economic benefits.
Bhanu P. Soni +4 more
doaj +1 more source
IET Electric Power Applications, 2021 In this work, a novel dual‐stator hybrid excited linear flux switching machine (DSHELFSM) is proposed. The proposed machine is suitable for long‐stroke applications as all the excitation sources are mounted on a short mover and the stator is completely ...
Basharat Ullah +4 more
doaj +1 more source
, 2023 El artículo habla del estudio realizado que investiga los mecanismos que causan la fibrilación ventricular (FV), un ritmo cardíaco peligroso. Se centra en el papel de los canales KATP y su relación con la formación de rotores estables durante la FV.
García Torrent, María Jesús +10 more
core +1 more source
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source
Performance of multi-stage axial-flux machines with MMEs
The Journal of Engineering, 2019 This study covers the investigation into the reduction of rare-earth magnets in a permanent magnet (PM) machine via the use of multiple rotors to enable a PM generator to be comprised of mixed magnetic elements, hereafter referred to as MME, by ...
Anthony James Spargo
doaj +1 more source