Results 61 to 70 of about 928,348 (261)

The particle dry deposition component of total deposition from air quality models: right, wrong or uncertain?

open access: yesTellus: Series B, Chemical and Physical Meteorology, 2019
Dry deposition is an important loss process for atmospheric particles and can be a significant part of total deposition estimates calculated for critical loads analyses. However, algorithms used in large-scale air quality and atmospheric chemistry models
Rick D. Saylor   +5 more
doaj   +1 more source

Turbulence in the interstellar medium [PDF]

open access: yes, 2014
Turbulence is ubiquitous in the insterstellar medium and plays a major role in several processes such as the formation of dense structures and stars, the stability of molecular clouds, the amplification of magnetic fields, and the re-acceleration and ...
Chian, A. C. -L.   +9 more
core   +2 more sources

Metasurface‐Based Multidimensional Light‐Field Manipulation: From Technologies to Applications

open access: yesAdvanced Science, EarlyView.
Multidimensional metasurfaces enable versatile manipulation of multiple optical degrees of freedom, including phase, amplitude, polarization, wavelength, and orbital angular momentum. This review summarizes their fundamental mechanisms, emerging strategies for multidimensional light‐field control, and key applications in optical computing, imaging ...
Heliang Yin   +6 more
wiley   +1 more source

Experimental Characterisation and Modelling of Atmospheric Fog and Turbulence in FSO [PDF]

open access: yes, 2013
Free space optical (FSO) communication uses visible or infrared (IR) wavelengths to broadcast high-speed data wirelessly through the atmospheric channel.
Ijaz, Muhammad
core  

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

open access: yesAdvanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang   +9 more
wiley   +1 more source

High-resolution large-eddy simulations of stably stratified flows: application to subkilometer-scale turbulence in the upper troposphere–lower stratosphere [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Large-eddy simulations of stably stratified flows are carried out and analyzed using the mesoscale atmospheric model Méso-NH for applications to kilometer- and subkilometer-scale turbulence in the in the upper troposphere–lower stratosphere.
R. Paoli   +4 more
doaj   +1 more source

Mitigating the effects of atmospheric distortion using DT-CWT fusion [PDF]

open access: yes, 2012
This paper describes a new method for mitigating the effects of atmospheric distortion on observed images, particularly airborne turbulence which degrades a region of interest (ROI).
Bull, David   +7 more
core   +1 more source

Straightness metric for warping strength in atmospheric turbulence affected images

open access: yes, 2022
Paper PTu2D.3, 3 S.Reliable no-reference image quality metrics are indispensable in many research areas. In this paper, a metric for image warping due to atmospheric turbulence is presented. Its main mechanism is the quantification of ""straightness"" in
Gladysz, Szymon   +2 more
core   +1 more source

A Compact Hollow Fiber Electrode Assembly Architecture for Continuous Electrochemical Marine Carbon Dioxide Removal

open access: yesAdvanced Energy Materials, EarlyView.
A coaxial, membrane‐integrated hollow fiber electrode assembly (HFEA) is developed for continuous marine carbon mineralization. By utilizing a sub‐millimeter inter‐electrode gap, the HFEA minimizes Ohmic losses, achieving 50% energy reduction and over 85% DIC removal.
Inhwan Park   +5 more
wiley   +1 more source

The Impact of Atmospheric Turbulence on Terahertz Communication

open access: yesIEEE Access, 2019
The application prospect of terahertz (THz) has been vastly enriched because it has the advantages of good penetrating power, high security, accurate directionality, and high bandwidth.
Lei Cang, Heng-Kai Zhao, Guo-Xin Zheng
doaj   +1 more source

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