Results 131 to 140 of about 1,313,437 (283)
EnergiesDue to the ability to improve the low-inertia characteristics of power systems and offer reliable voltage and frequency support, grid-forming permanent-magnet synchronous-generator wind turbines (PMSG-WTs) based on virtual synchronous-generator (VSG ...
Guanghui Li, Runqi Han, Bin Liu, Zhen Li
doaj +1 more source
A direct numerical simulation of dielectric barrier discharge (DBD) plasma actuators for turbulent skin-friction control [PDF]
Turbulent skin-friction control is the subject of much research and the use of transverse (spanwise) oscillating motions offers the means of obtaining a significant reduction in skin-friction.
Elam, Dana
core
Concept of passive and active suppression methods.
, 2015 (a) Schematic representation of task coordinates, joint angles, and physical parameters of a three-link arm in a vertical plane. Shoulder is moved as a sinusoidal oscillation. (b) Passive suppression method. Joint stiffness is lowered to passively dampen
Shunta Togo (721180) +2 more
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Influence of Carbon Nanoparticles on Electrically Induced Wear of Grease‐Lubricated Steels
Advanced Materials Interfaces, EarlyView.When an electric current enters a pair of rubbing surfaces, enormous damage takes place. In this research, how such damage occurs in the presence of protective grease and the mitigation with added carbon nanoparticles, were investigated. It was discovered that those particles regulate transport and interfacial electrical stability of the grease ...
Mohammad Humaun Kabir +6 more
wiley +1 more source
EnergiesThe dual three-phase permanent magnet synchronous motor (DTP-PMSM) under a V/f control framework is widely applied in belts, fans, pumps, etc. However, the oscillation in power and rotor speed is difficult to quantify and suppress, due to the higher ...
Riqing Su +4 more
doaj +1 more source
An Investigation of Gate Voltage Oscillation and Its Suppression for SiC MOSFET [PDF]
Silicon Carbide (SiC) MOSFET has undergone a rapid development and commercialization in recent years due to its superior features. However, the mainstream commercial SiC MOFESTs are often fitted to packages that are previously designed for silicon-based ...
Zhang W +5 more
core
Advanced Materials Interfaces, EarlyView.Schematic illustration of a sustainable nanofabrication process: chitosan derived from natural sources is used as a biodegradable thin film resist, patterned via Constant Pulse‐Assisted Force Lithography (CP‐AFL) to create tunable nanogrooves. These grooves template gold nanowire formation, enabling high‐resolution nanopatterning under ambient ...
Paolo Pellegrino +7 more
wiley +1 more source
Design of an Asymmetrical LCL Filter for Stability Enhancement in Multi-Electric Vehicle V2G Systems
IEEE AccessWith the increasing integration of inverter-based resources (IBRs) into modern power systems, the operational strategies of inverter-based facilities under grid faults have become a critical concern owing to oscillations and limited fault current.
Sungwook Lee +3 more
doaj +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
, 1998 In this study, static and dynamic behaviour of a three cavity laser diode model have been analyzed and oscillation frequency shift under the dynamic structure is explanied theoretically.
OZEK, Ahmet +3 more
core +1 more source