Results 11 to 20 of about 104,884 (306)
Measurement of the Attenuation Coefficient in Fresh Water Using the Adjacent Frame Difference Method
Photonics, 2022 The attenuation coefficient of a water body is one of the important factors for describing its features. However, its remote measurement in real time is still a challenge.
Gang Yang +5 more
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Analysis of air jets velocity attenuation at special initial conditions
Diagnostyka, 2022 The article is devoted to solving the significant problem of efficiency increasing of air distribution in the premise by swirl air jet. The aim of the article is to decrease coefficient of velocity attenuation due to intensification of initial turbulence
Orest Voznyak +5 more
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Optical attenuation coefficient in individual ZnO nanowires [PDF]
Optics Express, 2013 Attenuation coefficient measurements for the propagation of bandedge luminescence are made on individual ZnO nanowires by combining the localized excitation capability of a scanning electron microscope (SEM) with near-field scanning optical microscopy (NSOM) to record the distribution and intensity of wave-guided emission.
Little, Anree +2 more
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An Analytical-empirical Calculation of Linear Attenuation Coefficient of Megavoltage Photon Beams
Journal of Biomedical Physics and Engineering, 2017 Background: In this study, a method for linear attenuation coefficient calculation was introduced. Methods: Linear attenuation coefficient was calculated with a new method that base on the physics of interaction of photon with matter, mathematical ...
Seif F. +2 more
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Amplitude based segmentation of ultrasound echoes for attenuation coefficient estimation. [PDF]
Ultrasonics, 2021 In vivo ultrasound attenuation coefficient measurements are of interest as they can provide insight into tissue pathology. They are also needed so that measurements of the tissue's frequency dependent ultrasound backscattering coefficient may be ...
Civale J, Bamber J, Harris E.
europepmc +2 more sources
Attenuation Coefficient of Single-Mode Periodic Waveguides [PDF]
Physical Review Letters, 2011 It is widely accepted that, on ensemble average, the transmission T of guided modes decays exponentially with the waveguide length L due to small imperfections, leading to the important figure of merit defined as the attenuation-rate coefficient α=-⟨ln(T)⟩/L.
Baron, A +3 more
openaire +5 more sources
Effective attenuation coefficient and penetration depth of 630 nm laser light in polyvinyl alcohol slime glue phantoms simulating the human brain tumour [PDF]
Proceedings of the Estonian Academy of Sciences, 2022 The effectiveness of optical methods such as photodynamic therapy (PDT) depends on the amount of light distribution within the tissue to aid their potential for early cancer detection in a quantitative and non-invasive manner.
Lindokuhle Ntombela +2 more
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Gong-kuang zidonghua, 2018 In view of problems that existing ultrasonic detection method for concentration of tailing slurry has low accuracy and too many parameters, and cannot accurately reflect attenuation characteristics of the ultrasonic propagation in tailing slurry ...
WANG Jianxin, GAO Xin, ZHANG Yanping
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The influence of fluid-sensitive dispersion and attenuation on AVO analysis [PDF]
, 2006 Analysis of seismic data suggests that hydrocarbon deposits are often associated with higher than usual values of attenuation, but this is generally ignored during amplitude-versus-offset (AVO) analysis.
Liu, Enru +5 more
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Tikrit Journal of Pure Science, 2023 Calculations on shielding are required for building a gamma ray radiography exposure room to ensure that the workers are exposed to radiation. The linear attenuation coefficient ( ) is a measurement used to evaluate the radiation diffusion and ...
Berun Nasralddin Ghafoor +1 more
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