Results 51 to 60 of about 180,632 (304)
Vehicle for civil helicopter ride quality research [PDF]
, 1975 A research aircraft for investigating the factors involved in civil helicopter operations was developed for NASA Langley Research Center. The aircraft is a reconfigured 17000 kg (36000 lb) military transport helicopter.
Schlegel, R. G., Snyder, W. J.
core +1 more source
Circular Economy Pathways for Airport Climate Change Mitigation
Business Strategy and the Environment, EarlyView.ABSTRACT Airport operators face growing climate‐change pressures; the circular economy offers pathways to reduce impacts and recover resources. We examine how airport operators apply the circular economy in practice. We use an exploratory qualitative multicase design based on practitioner‐generated documents (e.g., press releases and sustainability ...
Michele Oppioli +3 more
wiley +1 more source
Erratum: Using global optimization methods for three-dimensional localization and quantification of incoherent acoustic sources [JASA Express Lett. 2, 054802 (2022)] [PDF]
JASA Express Letters, 2022 Bieke von den Hoff +3 more
doaj +1 more source
Aerospace, 2015 Air traffic is growing at a steady rate of 3% to 5% per year in most regions of the world, implying a doubling every 15–25 years. This requires major advances in aircraft noise reduction at airports, just not to increase the noise exposure due to the ...
Luís M. B. C. Campos
doaj +1 more source
Aircrafts' Taxi Noise Emission
Noise & Vibration Worldwide, 2008 During planning stages, when noisy activity has not been implanted or while evaluating operation changes, it is necessary to find an environmental noise mapping prediction tool for future scenarios. When an activity is already implanted, it is possible to measure noise emissions, but this is expensive, so prediction tools can also be useful. Because of
Asensio Rivera, César +2 more
openaire +3 more sources
Corporate Decarbonization via Technology and Management
Business Strategy and the Environment, EarlyView.ABSTRACT This study provides a comprehensive overview of key findings on decarbonization, advanced technologies, and management strategies, highlighting emerging themes shaping the field. Advanced technologies enhance carbon reduction through efficiency, real‐time monitoring, and optimizing resource optimization.
Heidy Montero‐Teran +2 more
wiley +1 more source
Carbon Energy, EarlyView.Origin of the ultrahigh‐rate charge capability of FeS2: FeS2 demonstrates exceptional high‐rate charging capability, delivering 92% capacity retention at 10 C and maintaining as much as 60% capacity retention even at 30 C. This originates from an ultrahigh apparent diffusion coefficient involving both Li+ and Fe2+.
Zhen Yu +13 more
wiley +1 more source
Numerical aeroacoustic analysis of propeller designs [PDF]
, 2018 As propeller-driven aircraft are the best choice for short/middle-haul flights but their acoustic emissions may require improvements to comply with future noise certification standards, this work aims to numerically evaluate the acoustics of different ...
Barakos, George N. +2 more
core +1 more source
Sudan at War With Itself: Civilian Devastation in the Civil War
Conflict Resolution Quarterly, EarlyView.ABSTRACT A civil war is raging in Sudan between the Sudan Armed Forces (SAF) and the Rapid Support Forces (RSF) along with militia groups. Beginning on April 15, 2023, and continuing at least to this writing (October 15, 2025), civilian noncombatants have been subjected to bombings, beatings, torture, shootings, rape, and murder on a large scale. Since
Daniel Rothbart +3 more
wiley +1 more source
Night time aircraft noise exposure and children′s cognitive performance
Noise and Health, 2010 Chronic aircraft noise exposure in children is associated with impairment of reading and long-term memory. Most studies have not differentiated between day or nighttime noise exposure.
Stephen Stansfeld +3 more
doaj +1 more source