Results 151 to 160 of about 180,632 (304)

A Quiet Helicopter for Air Taxi Operations [PDF]

NASA is exploring rotorcraft designs for VTOL air taxi operations, also known as urban air mobility (UAM) or on-demand mobility (ODM) applications. Several concept vehicles have been developed, intended to focus and guide NASA research activities in ...
Johnson, Wayne
core   +1 more source

Aircraft noise exposure induces pro-inflammatory vascular conditioning and amplifies vascular dysfunction and impairment of cardiac function after myocardial infarction. [PDF]

Cardiovasc Res, 2023
Molitor M, Bayo-Jimenez MT, Hahad O, Witzler C, Finger S, Garlapati VS, Rajlic S, Knopp T, Bieler TK, Aluia M, Wild J, Lagrange J, Blessing R, Rapp S, Schulz A, Kleinert H, Karbach S, Steven S, Ruf W, Wild P, Daiber A, Münzel T, Wenzel P.   +22 more
europepmc   +1 more source

Facilitating macrosystem biology with organismal‐scale airborne remote sensing: Challenges and opportunities

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Emergent ecosystem properties, such as population and trait distributions, biodiversity and energy and water fluxes, occur because of the dynamic interactions of individuals in their environment.
Sarah J. Graves, Ritesh Chowdhry, Meilun Zhou, Ira Harmon, Ben Weinstein, S. K. Morgan Ernest, Alina Zare, Ethan P. White, Stephanie A. Bohlman   +8 more
wiley   +1 more source

Design and test of aircraft engine isolators for reduced interior noise [PDF]

Improved engine vibration isolation was proposed to be the most weight and cost efficient retrofit structure-borne noise control measure for single engine general aviation aircraft.
Scheidt, D. C., Unruh, J. F.
core   +1 more source

Associations between Aircraft Noise Exposure and Self-Reported Sleep Duration and Quality in the United States-Based Prospective Nurses' Health Study Cohort. [PDF]

Environ Health Perspect, 2023
Bozigar M, Huang T, Redline S, Hart JE, Grady ST, Nguyen DD, James P, Nicholas B, Levy JI, Laden F, Peters JL.   +10 more
europepmc   +1 more source

Economic Freedom and Audit Fees: Evidence From the USA

Accounting &Finance, EarlyView.
ABSTRACT We examine the association between US state‐level economic freedom and audit fees. We argue that economic freedom lowers clients' perceived business risk, thereby requiring reduced audit effort and exposing auditors to a lower probability of litigation risk, which enables auditors to charge lower audit fees to clients headquartered in states ...
Mahmud Hossain, Ahsan Habib, Dinithi Ranasinghe, Marlissa Phillips   +3 more
wiley   +1 more source

Analysis of interior noise ground and flight test data for advanced turboprop aircraft applications [PDF]

Interior noise ground tests conducted on a DC-9 aircraft test section are described. The objectives were to study ground test and analysis techniques for evaluating the effectiveness of interior noise control treatments for advanced turboprop aircraft ...
Simpson, M. A., Tran, B. N.
core   +1 more source

Pharmacological treatment with a GABA(A) receptor modulator and a selective serotonin reuptake inhibitor as a mitigation strategy against aircraft noise‐induced cardiovascular and neuronal damage

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Noise pollution, particularly by aircraft, is a significant risk factor for cardiovascular disease. Aircraft noise activates stress response pathways in the brain, via the amygdala, the sympathetic nervous system and the hypothalamic–pituitary–adrenal axis.
Ivana Kuntić, Marin Kuntić, Jiayin Zheng, Leonardo Nardi, Matthias Oelze, Arijan Valar, Dominika Mihaliková, Lea Strohm, Hans‐Georg Buchholz, Nicole Bausbacher, Simon Lange, Henning Ubbens, Qi Tang, Liyu Zhang, Guilherme Horta, Paul Stamm, Omar Hahad, Axel Methner, Sebastian Steven, Huige Li, Mathias Schreckenberger, Dilja Krueger‐Burg, Adrian Gericke, Michael J. Schmeisser, Thomas Münzel, Andreas Daiber   +25 more
wiley   +1 more source

Sources and characteristics of interior noise in general aviation aircraft [PDF]

A field study was conducted to examine the interior noise characteristics of a general aviation aircraft. The goals were to identify the major noise sources and their relative contribution and to establish the noise transmission paths and their relative ...
Catherines, J. J., Jha, S. K.
core   +1 more source

Soundscape dynamics of a cold protected forest: dominance of aircraft noise. [PDF]

Landsc Ecol, 2022
Grinfeder E, Haupert S, Ducrettet M, Barlet J, Reynet MP, Sèbe F, Sueur J.   +6 more
europepmc   +1 more source