Results 41 to 50 of about 85,518 (307)

Rotational Speed Control Using ANN-Based MPPT for OWC Based on Surface Elevation Measurements

open access: yesApplied Sciences, 2020
This paper presents an ANN-based rotational speed control to avoid the stalling behavior in Oscillating Water Columns composed of a Doubly Fed Induction Generator driven by a Wells turbine.
Fares M’zoughi   +3 more
doaj   +1 more source

Interfacial Bonding and Mechanical Properties of Al/Mg Dissimilar Refill Friction Stir Spot Welds Using a Grooved Tool

open access: yesCrystals, 2021
Al/Mg dissimilar welds were successfully fabricated by refill friction stir spot welding using a grooved sleeve tool. Influences of sleeve penetration depth and rotational speed on the weld formation and mechanical performance were systematically ...
Zhikang Shen   +7 more
doaj   +1 more source

UAV Propeller Rotational Speed Measurement through FMCW Radars [PDF]

open access: yes, 2023
The growing number of civil applications in which Unmanned Aerial Vehicles (UAVs) are involved can create many concerns for airspace security and surveillance.
Gianluca Ciattaglia   +9 more
core   +1 more source

Design and Control of Brushless DC Motor Drives for Refrigerated Cabinets

open access: yesEnergies, 2022
The purpose of this study is to develop a variable frequency brushless DC motor drive for the compressors of refrigerated cabinets. It is based on the microcontroller unit (MCU) produced by Renesas Co., Ltd. using the space vector pulse width modulation (
Kuei-Hsiang Chao   +2 more
doaj   +1 more source

A Novel Double Closed Loop Control of Temperature and Rotational Speed for Integrated Multi-Parameter Hydro-Viscous Speed Control System (HSCS)

open access: yesMachines
Hydro-viscous clutch has already become an inevitable choice for special vehicle transmission in the present and future. As a nonlinear system with a large hysteresis loop, its speed control performance is affected by input rotational speed, lubricating ...
Kai Zhao   +9 more
doaj   +1 more source

Effect of blade chord length on startup performance of H-type tidal current turbine rotor

open access: yesAIP Advances, 2023
This study aims to reveal the effect of the blade chord length on the startup performance of the lift rotor that converts the kinetic energy of tidal currents.
Zhiyuan Wang   +4 more
doaj   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

open access: yesFEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas   +6 more
wiley   +1 more source

Multifunctional Downhole Drilling Motor Speed Sensor Based on Triboelectric Nanogenerator

open access: yesMicromachines
The measurement of downhole drilling motor rotational speed is crucial for optimizing drilling operations, improving work efficiency, and preventing equipment failures.
Yanbo Zhang   +4 more
doaj   +1 more source

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

open access: yesMolecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis   +3 more
wiley   +1 more source

Study on the influence of the rotational speed of polishing disk on material removal in aspheric surface compliant polishing

open access: yesAdvances in Mechanical Engineering, 2015
When a soft polishing tool is compressed on a stiff workpiece of curved surface, the contact area is a piece of the curved surface. In the process of aspheric surface polishing, the machining speed is always provided by the rotational speed of the ...
Liyong Hu, Jianming Zhan, Di Zheng
doaj   +1 more source

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