Results 91 to 100 of about 882 (196)

Structure–Performance Relationships of Commercial Cathode Gas Diffusion Layers in High‐Temperature PEM Fuel Cells

Fuel Cells, Volume 26, Issue 4, August 2026.
ABSTRACT The influence of cathode gas diffusion layer (GDL) architecture on the performance of high‐temperature proton exchange membrane fuel cells (HT‐PEMFCs) remains insufficiently understood, particularly for commercially available materials with different substrate and microporous layer (MPL) designs. In this study, six commercial cathode GDLs were
Ahyeon Won, Harshal Agarwal, Suresha Ranganath, Arun Torris, Carsten Cremers, Jens Tübke   +5 more
wiley   +1 more source

A Method for Performance Enhancement for Aeronautical Telemetry Radio Link Using Alamouti Code [PDF]

فصلنامه علوم و فناوری فضایی, 2011
In the most aeronautical telemetry systems, at least two antennas are used to transmit radio signals towards receiver antenna. It is due to effect of large metallic fuselage of air vehicles in cutoff radio link between transmitter and receiver antenna ...
Sh. Marzban, K. Mohamed-Pour
doaj  

Understanding mammal avoidance of human settlements

Journal of Animal Ecology, Volume 95, Issue 8, Page 1504-1517, August 2026.
Terrestrial mammals often avoid human settlements, but is this a result of human activity around buildings or the built infrastructure per se? Using data on animal movement before and during the COVID‐19 lockdowns, this paper disentangles these effects, showing how changes in human mobility affect animals' avoidance of buildings. Abstract Anthropogenic
Jonathan R. Potts, Luca Börger, Marlee A. Tucker, Federico Ossi, Scott W. Yanco, Diego Ellis‐Soto, Thomas Müller, Ruth Y. Oliver, Mario H. Alves, Walter Arnold, Nina Attias, Guillaume Bastille‐Rousseau, Jerrold L. Belant, J. David Blount, Dean E. Beyer, Francesca Cagnacci, Simon Chamaillé‐Jammes, Aung N. Chan, Eric K. Cole, Jessica S. Cornils, Rogerio Cunha de Paula, Vickie DeNicola, Arnaud L. J. Desbiez, Sarah R. Dewey, David Drake, Michael Egan, Jasper A. J. Eikelboom, Morgan Farmer, Mathieu Garel, Jacob R. Goheen, Hans Peter Hansen, Lars Haugaard, Mark Hebblewhite, Morten Heim, Miloš Ježek, Lilla Jordán, Douglas N. Kamaru, Miha Krofel, Tayler N. LaSharr, Peter Leimgruber, Anne Loison, Ryan A. Long, Matthias‐Claudio Loretto, Pascal Marchand, Erling Meisingset, Joerg Melzheimer, Kevin L. Monteith, John J. Morgan, Rasmus M. Mortensen, Rebekka Mueller, Atle Mysterud, Astrid Olejarz, Teresa Oliveira, Manuela Panzacchi, Ruben Portas, Hubert Potočnik, Herbert H. T. Prins, Laura R. Prugh, Nathan Ranc, Ralf Roeder, Christer M. Rolandsen, Çağan Şekercioğlu, Aldin Selimovic, Rachel Smiley, Erling Johan Solberg, Olav Strand, Peter Sunde, Carole Toïgo, Bram Van Moorter, Tana L. Verzuh, Bettina Wachter, Brittany L. Wagler, Jesse Whittington, Christopher C. Wilmers, George Wittemyer, Christian Rutz   +75 more
wiley   +1 more source

Rapid Changes in Ocean Surface Waves Across the Eye of Hurricane Milton (2024)

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Two wave buoys deployed in the direct path of Hurricane Milton show a remarkable reduction in significant wave height and peak wave period as the eye of the storm passes and wind speeds are briefly reduced. The rapid adjustment of the waves to the lower wind speeds is initially unexpected, but is explained by the observed changes in the scalar
Jim Thomson, Jacob Davis, Isabel Houghton, Benjamin W. Barr, Christie Hegermiller, Miguel Mejia, Jonathan Moskaitis, Elizabeth J. Thompson   +7 more
wiley   +1 more source

Overcoming Computational Bottlenecks in Quantum Hydrodynamics: A Volume‐Based Integral Formalism for Spherical Nanoparticles

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
Numerical modeling of mesoscopic material response models that capture the quantum dynamics of electrons does not have to come with discouraging computational bottlenecks. The main message is that through a shift in perspective in modeling toward integral equation methods and exploiting symmetry‐based arguments, it is possible to capture complicated ...
Christos Mystilidis, Christos Tserkezis, Guy A. E. Vandenbosch, N. Asger Mortensen, Xuezhi Zheng   +4 more
wiley   +1 more source

Design, Implementation, and Testing of Spatial Disorientation Scenarios in a Modified Hexapod Motion Simulator

International Journal of Aviation, Aeronautics, and Aerospace
Investigations into aviation accidents aim to identify root causes and enhance safety. Despite advancements in safety measures, technology, and education, general aviation accident rates remain stable, with loss of control identified as the leading cause.
Jarod Hinckley, Ryan Paul, Logan Rock, Joe Conner, Jon M. Loffi   +4 more
doaj   +1 more source

Finite-Time Mass Estimation Using ℋ_∞ and Sliding Mode Control for a Multicopter

Mathematics
Nonlinear control theory applied to unmanned aeronautical vehicles is an engineering topic that has received higher and higher popularity during the last decade.
Carlos Augusto Arellano-Muro, Guillermo Luis Osuna-González, Riccardo Cespi   +2 more
doaj   +1 more source

A Practical Method for Investigation of Aerodynamic and Longitudinal Static Stability of Wing-in-Ground Effect

International Journal of Maritime Technology, 2015
The purpose of this paper is to present a fast, economical and practical method for mathematical modeling of aerodynamic characteristics of rectangular wing-in-ground effect (WIG).
Mohammad Saeed Seif, Mohammad Tavakoli
doaj  

Adaptive tunneling photodiodes enable visual recognition in high-contrast scenes. [PDF]

Sci Adv
Liu L, Hu F, Han J, Gou J, Zou P, Yu H, He M, Guo L, Lian Y, Deng W, Wang F, Wei J, Du X, Zhou H, Yu H, Jiang Y, Wang QJ, Wang J.   +17 more
europepmc   +1 more source

Graphene battery as a viable alternative in electric vehicles for enhanced charging efficiency and thermal management. [PDF]

Sci Rep
Srikrishna N, Shetty DD, Kini CR.
europepmc   +1 more source