Results 71 to 80 of about 35,368 (282)

An Empirical Air-to-Ground Channel Model Based on Passive Measurements in LTE [PDF]

, 2019
In this paper, a recently conducted measurement campaign for unmanned-aerial-vehicle (UAV) channels is introduced. The downlink signals of an in-service long-time-evolution (LTE) network which is deployed in a suburban scenario were acquired.
Ai, Bo, Cai, Xuesong, Pedersen, Gert F., Pérez Yuste, Antonio, Rodríguez-Piñeiro, José, Wang, Nanxin, Yin, Xuefeng   +6 more
core   +2 more sources

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source

Radio Occultation Retrieval of Atmospheric Profiles from the FORMOSAT-3/COSMIC Mission: Early Results

Terrestrial, Atmospheric and Oceanic Sciences, 2009
Six identical micro-satellites of the FORMOSAT-3/COSMIC (Formosa Satellite #3 and Constellation Observing System for Meteorology, Ionosphere and Climate: FS-3/C) mission were successfully launched on 14 April 2006.
Cheng-Yung Huang, Chio-Zong Cheng, Po-Hsiung Lin, Chen-Joe Fong, Jens Wickert, Chun-Chieh Hsiao   +5 more
doaj   +1 more source

Feasibility study and design concept for an orbiting ice-penetrating radar sounder to characterize in three-dimensions the Europan ice mantle down to (and including) any ice/ocean interface [PDF]

, 1999
This report presents a radar sounding model based on the range of current working hypotheses for the nature of Europa's icy shell.Institute for ...
Blankenship, D.D., Edwards, B.C., Geissler, P.E., Gurnett, D., Johnson, W.T.K., Kim, Y., Kofman, W., Moore, J.C., Morse, D.L., Pappalardo, R.T., Picardi, G., Raney, R.K., Rodriguez, E.R., van Zyl, J., Weertman, J., Zebker, H.A.   +15 more
core   +1 more source

Conductance‐Dependent Photoresponse in a Dynamic SrTiO3 Memristor for Biorealistic Computing

Advanced Functional Materials, EarlyView.
A nanoscale SrTiO3 memristor is shown to exhibit dynamic synaptic behavior through the interaction of local electrical and global optical signals. Its photoresponse depends quantitatively on the conductance state, which evolves and decays over tunable timescales, enabling ultralow‐power, biorealistic learning mechanisms for advanced in‐memory and ...
Christoph Weilenmann, Hanglin He, Marko Mladenović, Till Zellweger, Kevin Portner, Klemens Bauer, Guillaume Bellec, Mathieu Luisier, Alexandros Emboras   +8 more
wiley   +1 more source

Estimate of the Arctic Convective Boundary Layer Height from Lidar Observations: A Case Study

Advances in Meteorology, 2012
A new automated small size lidar system (microlidar or MULID) has been developed and employed to perform aerosol measurements since March 2010 at Ny Ålesund (78.9°N, 11.9°E), Svalbard.
L. Di Liberto, F. Angelini, I. Pietroni, F. Cairo, G. Di Donfrancesco, A. Viola, S. Argentini, F. Fierli, G. Gobbi, M. Maturilli, R. Neuber, M. Snels   +11 more
doaj   +1 more source

Sporadic-E ionization observed by the backscatter technique

Annals of Geophysics, 1963
Tlie examination of tlie results of tlie ionosplieric sounding<br />by ground backscatter carried out at Torrecliiaruccia (S. Marinella, Rome)<br />since 1957, as to tlie occurrence of tlie propagation via sporadic-ZJ ionization,<br /> ...
P. DOMINICI
doaj   +1 more source

Remote sensing of tropical tropopause layer radiation balance using A-train measurements [PDF]

, 2008
Determining the level of zero net radiative heating (LZH) is critical to understanding parcel trajectory in the Tropical Tropopause Layer (TTL) and associated stratospheric hydration processes.
Feldman, D. R., L'Ecuyer, T. S., Liou, K. N., Yung, Y. L.   +3 more
core   +1 more source

Mapping Nanoscale Buckling in Atomically Thin Cr2Ge2Te6

Advanced Functional Materials, EarlyView.
Atomic‐resolution STEM is used to resolve nanoscale buckling in monolayer Cr2Ge2Te₆. A noise‐robust image analysis reconstructs three‐dimensional lattice distortions from single plan‐view images, revealing pronounced defect‐driven nm‐scale out‐of‐plane buckling.
Amy Carl, Nicholas Clark, David G. Hopkinson, Matthew Hamer, Matthew Watson, Laxman Nagireddy, James E. Nunn, Alexei Barinov, Yichao Zou, William Thornley, Casey Cheung, Wendong Wang, Sam Sullivan‐Allsop, Xiao Li, Astrid Weston, Eli G. Castanon, Andrey V Kretinin, Cephise Cacho, Neil R. Wilson, Sarah J. Haigh, Roman Gorbachev   +20 more
wiley   +1 more source

Conductive Bonding and System Architectures for High‐Performance Flexible Electronics

Advanced Functional Materials, EarlyView.
This review outlines bonding technologies and structural design strategies that support high‐performance flexible and stretchable electronics. Bonding approaches such as surface‐activated bonding and anisotropic conductive films, together with system‐level architectures including buffer layers and island‐bridge structures, possess distinct mechanical ...
Kazuma Nakajima, Kenjiro Fukuda
wiley   +1 more source