Results 91 to 100 of about 2,055,953 (299)

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

Advanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja, Mikko Kokkonen, Niina Halonen, Sami Myllymäki, Umair Rafique, Mandeep Singh, Ossi Laitinen, Heli Jantunen, Kristiina Oksman, Henrikki Liimatainen   +9 more
wiley   +1 more source

Mathematical study of degenerate boundary layers: A Large Scale Ocean Circulation Problem

, 2018
International audienceThis paper is concerned with a complete asymptoticanalysis as $\mathfrak{E} \to 0$ of the stationary Munk equation $\partial_x\psi-\mathfrak{E} \Delta^2 \psi=\tau$ in a domain $\Omega\subset \mathbf{R}^2$, supplemented with ...
Dalibard, Anne-Laure, Saint-Raymond, Laure   +1 more
core   +5 more sources

Effects of Liquid Clouds on GPS Radio Occultation Profiles in Superrefractions

Earth and Space Science, 2019
Inversion of radio occultation (RO) measurements to atmospheric parameters in the neutral atmosphere utilizes the assumption of spherical symmetry by implementation of the Abel transform.
P. Hordyniec, R. Norman, W. Rohm, C.‐Y. Huang, J. Le Marshall   +4 more
doaj   +1 more source

Multilayer Biobased Poly(ethylene furanoate)/Graphene Oxide Nanofibrous Membranes With Directional Water Transport for Efficient Microplastics Filtration

Advanced Materials Technologies, EarlyView.
A self‐assembled multilayer biobased PEF/GO nanofibrous membrane was developed by electrospinning for efficient PLA microplastics (MPs) filtration. The membrane combines superhydrophilicity, directional water transport, mechanical robustness, and a synergistic size‐exclusion interception and electrostatic repulsion MPs separation mechanism, enabling ...
Juraij Kandiyil, Sumayya Ansari, Prasanna Kumar S Mural, Yaser E. Greish, Adnan Younis, Akmal Nazir, Muhammad Z. Iqbal   +6 more
wiley   +1 more source

Effects of the 2024 Total Solar Eclipse on the Structure of the Planetary Boundary Layer: A Preliminary Analysis

Atmosphere
A total solar eclipse provides an unparalleled opportunity to study the changes in the atmosphere’s planetary boundary layer (PBL) due to changes in radiative heating.
Robert Pasken, Richard Woodford, Jimmy Bergmann, Carter Hickel, Margaret Ideker, Riley Jackson, Jack Rotter, Benjamin Schaefer   +7 more
doaj   +1 more source

Mechanics of inhomogeneous turbulence and interfacial layers [PDF]

, 2006
The mechanics of inhomogeneous turbulence in and adjacent to interfacial layers bounding turbulent and non-turbulent regions are analysed. Different mechanisms are identified according to the straining by the turbulent eddies in relation to the strength ...
Hunt, J.C.R., Eames, I., Westerweel, J. (author), Westerweel, J., Eames, I. (author), Hunt, J.C.R. (author)   +5 more
core   +1 more source

A Cryopreservation‐Based Supply Chain Strategy for Extrusion Bioprinting in Space

Advanced Materials Technologies, EarlyView.
Extrusion bioprinting on crewed space platforms requires a bioink that stays functional along the logistic chain. Here, cells and biomaterial ink travel separately, the cells cryopreserved and the ink cold stored, and are combined only minutes before printing.
Johannes Windisch, Max von Witzleben, Richard Frank Richter, Finn Dani, Constantin Greil, Sarah Duin, Anja Lode, Michael Gelinsky   +7 more
wiley   +1 more source

Geophysical flows over topography, a playground for laboratory experiments

Comptes Rendus. Physique
Physicists face major challenges in modelling multi-scale phenomena that are observed in geophysical flows (e.g. in the Earth’s oceans and atmosphere, or liquid planetary cores).
Vidal, Jérémie, Noir, Jérôme, Cébron, David, Burmann, Fabian, Monville, Rémy, Giraud, Vadim, Charles, Yoann   +6 more
doaj   +1 more source

Programmable Variable‐Stiffness Multilayer Elastomer Composites With High‐Aspect‐Ratio Low‐Melting‐Point Alloy Inclusions

Advanced Materials Technologies, EarlyView.
High‐aspect‐ratio low‐melting‐point alloy inclusions are embedded within multilayer silicone laminates to create thermally programmable stiffness. Sequential activation of alloy‐rich layers produces four distinct mechanical states and reconfigures tendon‐driven actuator trajectories under the same load.
Palpolage Don Shehan Hiroshan Gunawardane, Gyan Edbert Zesiro, Hao Zhou, Gursel Alici, Mu Chiao   +4 more
wiley   +1 more source

Transport and mixing processes during the Antarctic ozone increase

Antarctic Record, 2010
The 44th Japanese Antarctic Research Expedition (JARE-44) performed intensive ozonesonde observations at Syowa Station (69.0゜S, 39.6゜E) from June 2003 through January 2004 to clarify the time evolution and mechanism of the Antarctic ozone hole ...
Yoshihiro Tomikawa, Kaoru Sato
doaj   +1 more source