Results 21 to 30 of about 3,102,766 (298)

Measurement of the Scattering Matrix and Extinction Coefficient of the Chaff Corridor

open access: yesIEEE Access, 2020
This article investigates the strategies to measure the scattering matrix and the extinction coefficient of the chaff corridor. A complete error model is adopted to describe the power transmission properties of the indoor measurement system.
Yanchun Zuo   +3 more
doaj   +1 more source

Determination of Backscatter-Extinction Coefficient Ratio for LIDAR-Retrieved Aerosol Optical Depth Based on Sunphotometer Data

open access: yesRemote Sensing, 2010
Backscattered power data from the Doppler LIght Detection And Ranging (LIDAR) systems at the Hong Kong International Airport (HKIA) could be used to obtain the extinction coefficient of the troposphere by combining with the meteorological optical range ...
Pak Wai Chan
doaj   +1 more source

Light Transmission in Fog: The Influence of Wavelength on the Extinction Coefficient

open access: yesApplied Sciences, 2019
Autonomous driving is based on innovative technologies that have to ensure that vehicles are driven safely. LiDARs are one of the reference sensors for obstacle detection. However, this technology is affected by adverse weather conditions, especially fog.
Pierre Duthon, M. Colomb, F. Bernardin
semanticscholar   +1 more source

SCIAMACHY stratospheric aerosol extinction profile retrieval using the OMPS/LP algorithm [PDF]

open access: yesAtmospheric Measurement Techniques, 2011
The Ozone Mapper and Profiler Suite, Limp Profiler (OMPS/LP) algorithm is used to retrieve ozone concentration and aerosol extinction profiles using a series of 120 SCIAMACHY limb measurements collocated with SAGE II solar occultation events. The primary
G. Taha   +4 more
doaj   +1 more source

Non-Stationarity of Aerosol Extinction Coefficient per Unit of Mass in Autumn and Winter in Chengdu, China

open access: yesAtmosphere, 2022
Based on hourly observation data from the aethalometer and GRIMM180 environment particle monitor as well as the simultaneous data of visibility (V), relative humidity (RH) and nitrogen dioxide (NO2) from October to December in 2017 in Chengdu, the ...
Meng Yang   +3 more
doaj   +1 more source

Extinction coefficient measurement of supercritical water-based multi-walled carbon nanotube nanofluids

open access: yesAIP Advances, 2022
This study measured the extinction coefficients of supercritical water (SCW)-based multi-walled carbon nanotube (MWCNT) nanofluids by using an in-house developed chamber. A He–Ne laser with a wavelength of 632.8 nm was employed as the light source.
Tae Jong Choi   +2 more
doaj   +1 more source

Improved transmission method for measuring the optical extinction coefficient of micro/nano particle suspensions. [PDF]

open access: yesApplied Optics, 2016
Extinction coefficients are fundamental for analyzing radiative transport in micro/nano particle suspensions. In the traditional transmission method for measuring the extinction coefficient of particles in a cuvette, a reference system is used to ...
Xingcan Li   +3 more
semanticscholar   +1 more source

Properties of Inclined Silicon Carbide Thin Films Deposited By Vacuum Thermal Evaporation [PDF]

open access: yesEngineering and Technology Journal, 2008
In this work, thermal evaporation system was employed to deposit thin films of SiC onglass substrates in order to determine the parameters of them. Measurements includedtransmission, absorption, Seebak effect, resistivity and conductivity, absorption ...
Khalid Z. Yahiya   +2 more
doaj   +1 more source

Effects of Volumetric Property Models on the Efficiency of a Porous Volumetric Solar Receiver

open access: yesEnergies, 2022
A porous volumetric receiver is the key component in concentrated solar power systems. In this paper, we investigate the effects of volumetric parameter models on the heat collection efficiency of the volumetric receiver by numerical simulations with the
Xuewei Ni, Tiening Liu, Dong Liu
doaj   +1 more source

Small-scale Scheimpflug lidar for aerosol extinction coefficient and vertical atmospheric transmittance detection.

open access: yesOptics Express, 2018
In this paper, a new prototypical Scheimpflug lidar capable of detecting the aerosol extinction coefficient and vertical atmospheric transmittance at 1 km above the ground is described.
Guodong Sun   +6 more
semanticscholar   +1 more source

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