Article
Meteorology & Atmospheric Sciences
M. Pallu, S. Celestin, F. Trompier, M. Klerlein
Summary: Terrestrial gamma ray flashes (TGFs) are bursts of high-energy photons produced in thunderstorms, while electrons deliver high doses in a compact area around the TGF source. Previous studies have shown that the photon doses from TGFs are sufficiently low to be negligible for radiation exposure during flights. In this work, the upper bound probability of a commercial flight being hit by the electron beam of a TGF is estimated, and the results suggest that the probability is very low for the total air traffic.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Multidisciplinary Sciences
Gabrielle Ednie, David M. Bird, Kyle H. Elliott
Summary: The presence of a small, commercial UAV in open habitats led to a significant reduction in the number of bat passes recorded, suggesting that the UAV may alter bat behavior and reduce detection rates. Noise interference from the UAV also contributed to lower on-board bat detection rates, potentially causing inaccurate surveys of bat populations when using acoustic recorders attached to UAVs.
SCIENTIFIC REPORTS
(2021)
Article
Construction & Building Technology
Jean C. Rivera-Rios, Taekyu Joo, Masayuki Takeuchi, Thomas M. Orlando, Tracy Bevington, John W. Mathis, Cliffton D. Pert, Brandon A. Tyson, Tyler M. Anderson-Lennert, Joshua A. Smith, Nga Lee Ng
Summary: This study measured particle number and mass concentrations in aircraft cabins during July 2020 in Atlanta, with restaurants having the highest concentrations and in-flight aircraft cabins having the lowest.
Review
Construction & Building Technology
Ruiqing Chen, Lei Fang, Junjie Liu, Britta Herbig, Victor Norrefeldt, Florian Mayer, Richard Fox, Pawel Wargocki
Summary: The study reviewed 47 documents on volatile organic compounds (VOCs) measurements in commercial aircraft, finding that most VOCs were below permissible levels, with benzene slightly higher. The concentrations of semi-volatile organic compounds and other pollutants did not exceed standards in buildings, but average NO2 concentration was slightly elevated. Additionally, ozone concentration was below the recommended limit, outdoor air supply rate exceeded minimum requirement for commercial aircraft, carbon dioxide concentration was within permitted levels, and temperature and humidity were generally within recommended ranges for comfort.
Review
Allergy
Paul J. Turner, Jelena Mamula, Jeremiah Laktabi, Nandinee Patel
Summary: The incidence of in-flight medical events (IMEs) due to allergic reactions during air travel is relatively low, occurring at a lower rate compared to accidental allergic reactions to food in the community. Despite the increasing number of passengers and the prevalence of food allergies, the rate of allergic IMEs has remained stable over the past 30 years.
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE
(2023)
Article
Engineering, Aerospace
Mehmet Kadri Akyuz
Summary: This study determines and compares the emissions and environmental impacts of aircraft in the landing and takeoff cycle before and during the COVID-19 pandemic. The findings show a decrease in total pollutant emissions during the pandemic, but an increase in per passenger emissions. The study highlights the effects of the pandemic on environmental costs caused by aircraft.
AIRCRAFT ENGINEERING AND AEROSPACE TECHNOLOGY
(2022)
Article
Computer Science, Information Systems
Debora Gil, Aura Hernandez-Sabate, Julien Enconniere, Saryani Asmayawati, Pau Folch, Juan Borrego-Carazo, Miquel Angel Piera
Summary: This paper presents a cockpit-deployable machine learning system for supporting flight crew in go-around decision-making based on the prediction of hard landing events. The results of the analysis on a large dataset show that our approach achieves an average sensitivity of 85% and an average specificity of 74% at the go-around point. Therefore, our method outperforms existing approaches and serves as a cockpit-deployable recommendation system.
Article
Energy & Fuels
Selcuk Ekici, Yasin Sohret, Habib Gurbuz
Summary: The research shows that the COVID-19 pandemic has had a significant impact on commercial air transport in Turkey, with a notable decrease in air pollutants induced by domestic flights, while no significant increase in pollutants from international flights was observed.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
Article
Biotechnology & Applied Microbiology
Negin Nejatishahidein, Minyoung Kim, Seon Y. Jung, Ehsan E. Borujeni, Lara Fernandez-Cerezo, David J. Roush, Ali Borhan, Andrew L. Zydney
Summary: Significant increases in cell density and product titer have led to renewed interest in the application of depth filtration for initial clarification of cell culture fluid in antibody production. The performance and scale-up of depth filters were studied using a combination of experimental and computational fluid dynamics (CFD) approaches. The results provide important insights and a framework for developing more effective depth filters and filtration processes.
BIOTECHNOLOGY AND BIOENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
R. A. Mulder, M. A. Caracanhas, C. Morais Smith
Summary: The Caldeira-Leggett model of quantum Brownian motion is generalized by introducing a generic velocity-dependent coupling, leading to the description of models capturing Markovian and non-Markovian versions of Brownian and Levy statistics. A specific coupling force connects with Levy statistics of cold atoms and gives rise to additional inertia in the low-velocity limit. The integration of the environment through path-integral quantization results in nonlocal effective actions, which can be used as starting points for numerical calculations on decoherence properties of nonohmic baths.
Article
Construction & Building Technology
Yihui Yin, Junzhou He, Jingjing Pei, Xudong Yang, Yuexia Sun, Xikang Cui, Chao-Hsin Lin, Daniel Wei, Qingyan Chen
Summary: Volatile organic compounds (VOCs) in aircraft cabins can come from various sources, including construction materials and human emissions. The concentrations of VOCs can vary between different flight phases and long-haul versus short-haul flights, indicating the importance of ventilation in diluting these contaminants. Unlike other indoor environments, the main emission sources of VOCs in aircraft cabins are not the interior materials.
Article
Otorhinolaryngology
L. Le Carboulec, J. De Mestier, M. Boucenna, J-B Lecanu
Summary: Facial baroparesis is a rare condition related to atmospheric pressure changes causing nerve damage.
Episodes of facial palsy during long-haul flights may be associated with complications such as otitis media.
Early detection and appropriate management are crucial when encountering this condition.
EUROPEAN ANNALS OF OTORHINOLARYNGOLOGY-HEAD AND NECK DISEASES
(2021)
Article
Meteorology & Atmospheric Sciences
Evert I. F. de Bruijn, Fred C. Bosveld, Siebren de Haan, Albert A. M. Holtslag
Summary: This study introduces a new method of wind observation using hot-air balloon tracks, comparing the data with traditional meteorological instruments and numerical weather prediction models. The results demonstrate the potential impact of hot-air balloon wind information on improving NWP trajectory hindcasting, particularly in mountain-valley circulation scenarios.
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
(2021)
Article
Materials Science, Biomaterials
Bianliang Miao, Yi Liu, Along Zhang, Ye Cao, Rui Zhong, Jiaxin Liu, Zhengzhong Shao
Summary: This article proposes a novel approach for in situ growth of nanocoatings on various material surfaces using silk fibroin (SF) and lysozyme. The nanocoatings possess stable adherence to diverse substrate surfaces and exhibit antithrombotic properties. This method holds promise for enhancing the hemocompatibility of medical devices and materials in contact with blood.
BIOMATERIALS SCIENCE
(2023)
Article
Multidisciplinary Sciences
Dario A. Leon, Augusto Gonzalez
Summary: The study argues that mutations can be described as Levy flights in the mutation space, with components including random single-base substitutions and large DNA rearrangements. Estimations for the time rates of both events and the size distribution function of large rearrangements were obtained from the data analysis.
SCIENTIFIC REPORTS
(2021)
