Results 101 to 110 of about 10,609 (238)

Perfluorohexanone for Clean Fire Suppression: Mechanisms, System Design, Applications, and Future Directions

Safety Science and Technology, EarlyView.
Driven by halon and high GWP agent phase out, perfluorohexanone is increasingly deployed in enclosures such as data centers, marine machinery spaces, and industrial process lines. This review summarizes application performance, discharge and distribution design, material compatibility, and byproduct control and maps practical gaps for large volume and ...
Zhilei Yu, Haibin Dong, Yanfeng Sheng, Xuelei Xian, Dehua Zhang, Feiran Li, Liang Liu, Junchao Zhao, Heping Zhang   +8 more
wiley   +1 more source

Cardiovascular consequences of aircraft noise exposure. [PDF]

Front Public Health, 2022
Ba̧czalska J, Wojciechowska W, Rojek M, Hahad O, Daiber A, Münzel T, Rajzer M.   +6 more
europepmc   +1 more source

Trends in thunderstorm days, lightning activity, squalls and the environmental factors in Hong Kong

Weather, EarlyView.
This study analyses trends in Hong Kong's convective weather using long‐term observer‐based and shorter‐term instrument‐based data. Annual thunderstorm days increased significantly by 1.9 days decade−1 in 1947–2024, notably in June–September, consistent with increasingly favourable warm‐season environments for thunderstorms.
Yuk Sing Lui, Kin‐chung Hui, Chun‐wing Choy, Pak‐wai Chan, Ming‐chun Lam, Kin‐yu Chan   +5 more
wiley   +1 more source

Application and Development of Aircraft Flyover Measurements in China

Acoustics
Aircraft flyover measurements are used to record the acoustic pressure signals generated by large civil aircraft as they fly over a large-scale microphone array deployed on the ground, thereby obtaining the spatial distribution of aircraft airframe noise
Haoyuan Dong, Cheng Wei Lee, Yuqi Zhou, Wei Ma   +3 more
doaj   +1 more source

Aircraft Noise Reduction Strategies and Analysis of the Effects. [PDF]

Int J Environ Res Public Health, 2023
Xie J, Zhu L, Lee HM.
europepmc   +1 more source

Monitoring GPS‐collared moose by ground versus drone approaches: efficiency and disturbance effects

Wildlife Biology, EarlyView.
Efficient wildlife management requires precise monitoring methods, for example to estimate population density, reproductive success, and survival. Here, we compared the efficiency of drone (equipped with a RGB camera) and ground approaches to detect and observe GPS‐collared female moose Alces alces and their calves. We also quantified how drone (n = 42)
Martin Mayer, Erlend Furuhovde, Kristoffer Nordli, Giorgia Myriam Ausilio, Petter Wabakken, Ane Eriksen, Alina L. Evans, Karen Marie Mathisen, Barbara Zimmermann   +8 more
wiley   +1 more source

Fast Data-Driven Noise Prediction for an Aircraft in Unconventional Configuration Using Flight Test Data

Aerospace
New, highly integrated, disruptive aircraft concepts are being devised to reduce aviation’s environmental footprint, but their performance is oftentimes challenging for the aircraft designer to assess.
Dominik Eisenhut, Andreas Strohmayer
doaj   +1 more source

A high‐altitude thermal infrared method for estimating moose abundance and demography in Rocky Mountain National Park, USA

Wildlife Biology, EarlyView.
Resource managers require accurate estimates of large herbivore abundance and demography to maintain ecological integrity. Common methods to count these species, including observations from low altitude helicopter flights, may conflict with other protected area management objectives and struggle to produce precise estimates for more cryptic species. To
Hanem G. Abouelezz, N. Thompson Hobbs
wiley   +1 more source

Alternative climate metrics to the Global Warming Potential are more suitable for assessing aviation non-CO2 effects

Communications Earth & Environment
A growing body of research has highlighted the major contribution of aviation non-CO2 emissions and effects to anthropogenic climate change. Regulation of these emissions, for example in the EU Emissions Trading System, requires the use of a climate ...
Liam Megill, Kathrin Deck, Volker Grewe
doaj   +1 more source

Monitoring wildlife using long‐endurance solar‐electric UAVs

Wildlife Biology, EarlyView.
This report discusses the effectiveness of using small solar‐electric UAV (uncrewed aerial vehicles) for aerial wildlife monitoring. We review four years of aerial wildlife monitoring missions using a 5.5‐m wingspan, solar‐electric UAV that was equipped with a gimballed IR/RGB camera.
Götz Bramesfeld, William Bissonnette, Maya Rahaman‐Noronha, Kanwar Johal   +3 more
wiley   +1 more source