Results 71 to 80 of about 1,760,515 (295)
Experimental and Numerical Study of a UAV Propeller Printed in Clear Resin
AerospaceThis paper presents an experimental and numerical investigation of a 254 mm resin-printed propeller operating at rotational speeds between 3000 and 9000 RPM.
Mingtai Chen +3 more
doaj +1 more source
MATEC Web of Conferences, 2018 One of the main comfort issue affecting the passenger comfort into a turboprop aircraft fuselage is the propeller tonal noise and the related vibrations.
De Fenza Angelo +2 more
doaj +1 more source
Effects of Different Attack Angles and Guide Vane Numbers on the Vortex-solid Interaction Noise of Axial Flow Fan [PDF]
Journal of Applied Fluid MechanicsThis paper utilizes experiments and numerical simulations to investigate the effects of different attack angles of the rotor and the number of guide vanes on the vortex-solid interaction and noise generation of an axial flow fan.
Z. Tu, Y. Li, J. Zhou, Z. Chen
doaj +1 more source
Australian Journal of Social Issues, EarlyView.ABSTRACT As modes of activism rapidly evolve, activists—both seasoned and emerging—must increasingly navigate a hybrid terrain of both digital and non‐digital engagement. This paper draws on the personal narratives of 16 nascent activists based in Australia to explore how they develop competencies related to digital storytelling, which is critical to ...
Garth Stahl +5 more
wiley +1 more source
Annals of Neurology, EarlyView.Objective Medication dose adjustments are common in treatment‐resistant epilepsy, but lack robust evidence, and patient‐reported seizure diaries have known limitations. We assessed whether ultra long‐term subcutaneous electroencephalogram (sqEEG) improves detection of seizure frequency changes after antiseizure medication adjustments.
Pedro F. Viana +20 more
wiley +1 more source
Adversarial Representation Learning for Underwater Acoustic Noise Suppression in LOFARgram Space
IEEE AccessUnderwater acoustic signal denoising technology aims to overcome the challenge of recovering tonal patterns of target sources such as ships and submarines in complex ocean environments. Conventional statistical methods and deep learning approaches suffer
Yujeong Pak +3 more
doaj +1 more source
Journal of Applied Polymer Science, Volume 142, Issue 16, April 20, 2025.ABSTRACT An extensive experimental analysis was conducted to assess the thermal, acoustic, magnetic, and electrical properties of composite materials reinforced with varying ratios of silicon carbide (SiC) and alumina (Al₂O₃) powders, with a focus on enhancing the functionality of robotic arms.
Merdan Özkahraman +2 more
wiley +1 more source
International Journal of Environmental Health Engineering, 2015 Aims: The main goal of this paper was to evaluate the effectiveness of Helmholtz resonator in noise reduction of duct equipped with active noise control (ANC). Materials and Methods: Noise frequency band was produced by a propeller fan, which was spread
Farhad Forouharmajd +3 more
doaj +1 more source
Assessment of Helicopter Flyover Noise for Tonal Components
Global Journal of Medical Research, 2020 Tonal noise is produced by bodies rotating at high speeds such as helicopters. Sounds of the same amplitude will produce different responses depending on the tonal content of the sound. Previous studies suggest that tonal noise is more annoying than broadband noise.
OF Orikpete, TG Leton, OLY Momoh
openaire +2 more sources
The impact of family interview on the relationship between medical students and their silent mentor
Anatomical Sciences Education, EarlyView.Abstract The gross anatomy laboratory course often triggers significant negative emotions in medical students during dissection. While various pedagogical interventions aim to alleviate psychological burden, the fundamental question of how students' perceptions of donors evolve throughout the course remains underexplored.
Po‐Fang Tsai +2 more
wiley +1 more source