Results 161 to 170 of about 6,757,521 (349)

Characterization of the Drag Force in an Air-Moderated Granular Bed

, 2009
We measure the torque acting on a rod rotated perpendicular to its axis in a granular bed, through which an upflow of gas is utilized to tune the hydrostatic loading between grains.
Brzinski III, Theodore A, Durian, Douglas J   +1 more
core  

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

Advanced Functional Materials, EarlyView.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni, Erik Troschke, Henrik Vorwerk, Shiva Shahbazi Avarvand, Andreas Stihl, Nadzeya Brezhneva, Marius Hermesdorf, Desirée Leistenschneider, Felix H. Schacher, Jacob Schneidewind, Martin Oschatz   +10 more
wiley   +1 more source

Prevalence of periodontitis and associated factors among Portuguese Air Force pilot cadets: a cross-sectional study. [PDF]

Front Public Health
Martins D, Botelho J, Júdice A, Proença L, Mendes JJ, Machado V.   +5 more
europepmc   +1 more source

Comparison of Finger, Hand, and Wrist Injuries in the US Air Force to US Workers. [PDF]

J Occup Environ Med, 2023
Gwilliam M, Hendricks S, Socias-Morales C, Burnham B, Gomes H, Reichard A, Stallings H.   +6 more
europepmc   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

Advanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth, Verena Streibel, Oliver Bienek, Sergej Levashov, Johannes Dittloff, Kristof Möller, Johanna Eichhorn, Matthias M. May, Ian D. Sharp   +8 more
wiley   +1 more source

Occupational health in aviation: a cross-sectional study of barodontalgia among Malaysian air force pilots. [PDF]

BMC Oral Health
Abidin S, Nazri SAM, Mazlan N, Daud MSM, Haron MH, Muslim MSA, Lin GSS.   +6 more
europepmc   +1 more source

Non Thermal‐Driven Photocatalytic Ammonia Decomposition at Near‐Room Temperature on a Plasmonic Nanocone Array

Advanced Functional Materials, EarlyView.
Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui, S. M. Hossein Hejazi, Jan Navrátil, Hana Kmentová, Petr Bábor, Olivier Henrotte, Luca Mascaretti, Matteo Bisetto, Stephen K. Sanders, Andrea Schirato, Michal Otyepka, Piotr Błoński, Tiziano Montini, Radek Zboril, Paolo Fornasiero, Alessandro Alabastri, Alberto Naldoni, Stepan Kment   +17 more
wiley   +1 more source

Pre-training heart rate variability as a predictor of Air Force Academy completion. [PDF]

PLoS One
Kula Y, Horosov R, Gidron Y, Ekshtein A, Gordon B, Iversen Z, Tehori O, Ben-Ari O.   +7 more
europepmc   +1 more source

Controlled Aggregation of Pyrene‐Based Supramolecular Nanostructures for Light‐Driven Switchable H2 or H2O2 Production

Advanced Functional Materials, EarlyView.
This work reports the self‐assembly of a pyrene derivative into two distinct nanostructures and their application in visible‐light photocatalysis. The two nanostructures exhibit completely different yet complementary photocatalytic activities, promoting either H2 or H2O2 evolution.
Marianna Barbieri, Matilde Doardo, Ilaria Fortunati, Anna Fortunato, Elisabetta Collini, Francesca Arcudi, Luka Ðorđević   +6 more
wiley   +1 more source

Variations in mood states among Brazilian air force pilots: a crossover analysis between operational and aerobatic flight missions. [PDF]

Front Physiol
Santana WJ, Pivetta GP, Da Silva CER, Campos FAD, Farinatti P, Almeida G, Verame ADS, Brandão R, Figueira Junior AJ.   +8 more
europepmc   +1 more source