Results 241 to 250 of about 86,460 (309)

Coupled Vacancy and Phonon‐Scattering Engineering Drive Defect Evolution Toward Multifunctional High‐Performance Bi2Te3 Thermoelectrics

Advanced Science, EarlyView.
ZnSb reduces carrier concentration and suppresses Te volatilization, while Se substitution within QLs softens phonons and enhances anharmonicity. Swapped bilayers near twin boundaries strengthen phonon scattering and interlayer bonding. As a result, the optimal sample achieves an ultra‐high zT ∼1.51, cooling temperature difference of ∼70 K, power ...
Ruiheng Li, Minwen Yang, Huangshui Ma, Jie Zheng, Shengqiang Cui, Xiaobo Tan, Xuri Rao, Xiang An, Zongxiang Kan, Siqi Huo, Jing Shuai, Min Hong, Ran Ang   +12 more
wiley   +1 more source

Upgraded Three-Wavelength Lidar for Real-Time Observations of Volcanic Aerosol Optical and Microphysical Properties at Etna (Italy): Calibration Procedures and Measurement Tests. [PDF]

Sensors (Basel)
Manzo M, Aiesi G, Boselli A, Consoli S, Damiano R, Di Donfrancesco G, Saraceno B, Scollo S.   +7 more
europepmc   +1 more source

Developing Micro/Nanostructured Fluidic Mixing Technology for Biomedical Applications

Advanced Science, EarlyView.
This review critically evaluates how micro/nanostructured mixing technologies are redefining biomedical research. By synergizing fundamental analysis, numerical modeling, structural design, and external field manipulation, these systems attain unprecedented control over mass transport.
Junkai Wang, Hanxu Chen, Yile Fang, Yuanjin Zhao   +3 more
wiley   +1 more source

On the Applicability of Ground-Based Microwave Radiometers for Urban Boundary Layer Research. [PDF]

Sensors (Basel)
Bartsevich M, Rahman K, Addasi O, Ramamurthy P.   +3 more
europepmc   +1 more source

Incorporation of RLINE into AERMOD: An update and evaluation for mobile source applications. [PDF]

J Air Waste Manag Assoc
Owen RC, Heist DK, Snyder MG, Miller R, Kent L, Buechlein M, Carr E.   +6 more
europepmc   +1 more source

Demonstration of a mobile optical clock ensemble at sea. [PDF]

Nat Commun
Hilton AP, Offer RF, Klantsataya E, Scholten SK, Bourbeau Hébert N, Billington CJ, Locke C, Perrella C, Nelligan M, Allison JW, White B, Ahern E, Martin KW, Beard R, Elgin JD, Sparkes BM, Luiten AN.   +16 more
europepmc   +1 more source

Time variations of polarisation characteristics of HF radio signals during vertical and near-vertical incedence sounding of the ionosphere

2020 7th All-Russian Microwave Conference (RMC), 2020
The paper describes the equipment of the monostatic chirp ionosonde “Ionosonde-MS” upgraded in order to perform routine polarization measurements during vertical incidence and near-vertical incidence sounding of the mid-latitude ionosphere over the Asian part of Russia using a continuous chirp signal.
Vladimir I. Kurkin, Alexey V. Podlesnyi, Mark V. Cedrik   +2 more
exaly   +4 more sources

Registration of Minute Changes in the Critical Frequency of the F2 Layer by the Ionosonde of Vertical Radio Sounding

2019 Radiation and Scattering of Electromagnetic Waves (RSEMW), 2019
the idea and the first results of experiments on the registration of the critical frequency of layer F2 in the Earth's ionosphere with an interval of one minute to determine the coefficient of minute unsteadiness of the ionosphere and its dependence on time are presented.
Nadezhda G. Kotonaeva, Ilia V. Romanov, Petr V. Nikolaev, Elena N. Khotenko   +3 more
exaly   +4 more sources

Determination of sporadic E radio wave propagation parameters based on vertical and oblique sounding

Advances in Space Research, 2015
© 2015 COSPAR. Published by Elsevier Ltd. All rights reserved. Sporadic E layer is often determined for HF radio communication. We have to deal with oblique radiowave propagation in the radio practice. The limiting frequencies at oblique propagation depend heavily on the transmitter power and the receiver sensitivity.
Sherstyukov O., Akchurin A., Sherstyukov R.   +2 more
exaly   +6 more sources

Peculiarities of the inverse problems of vertical radio sounding of the ionosphere

Advances in Space Research, 1988
Abstract At the interpretation of ionograms (obtained by ground-based or satellite soundings) in terms of electron density, or at that of absorption measurements in terms of an effective electron collision frequency or at that of Doppler measurements in terms of plasma motions, problems arise which might be seen as comparable in character.
N.P. Danilkin, P.F. Denisenko, V.V. Sotsky   +2 more
semanticscholar   +3 more sources