Results 1 to 10 of about 306,957 (330)
An Analytical-empirical Calculation of Linear Attenuation Coefficient of Megavoltage Photon Beams [PDF]
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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Study on measurement of sound attenuation coefficient in bubble wake by pool [PDF]
E3S Web of Conferences, 2020 In this paper, bubbles are generated by controlling the air inlet volume of the ceramic tube array with a gas divider valve. Stimulation tests of sound attenuation characteristics of the wake of bubbles in a laboratory pool are performed.
Han Jing +4 more
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Journal of Applied Geospatial Information, 2023 In ocean remote sensing, the intensity of light entering the water column decreases exponentially with increasing depth due to scattering and particle absorption in the water column.
Anggi Tiarasani +2 more
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Increasing Stability for the Conductivity and Attenuation Coefficients [PDF]
SIAM Journal on Mathematical Analysis, 2016 In this work we consider stability of recovery of the conductivity and attenuation coefficients of the stationary Maxwell and Schr dinger equations from a complete set of (Cauchy) boundary data. By using complex geometrical optics solutions we derive some bounds which can be viewed as an evidence of increasing stability in these inverse problems when ...
Isakov, Victor +2 more
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Attenuation Coefficients for Water Quality Trading [PDF]
Environmental Science & Technology, 2014 Water quality trading has been proposed as a cost-effective approach for reducing nutrient loads through credit generation from agricultural or point source reductions sold to buyers facing costly options. We present a systematic approach to determine attenuation coefficients and their uncertainty.
Keller, Arturo A +7 more
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PLoS ONE, 2021 Background and aimsWe investigated the usefulness of combining two-dimensional shear wave elastography and the ultrasound-guided attenuation parameter for assessing the risk of progressive non-alcoholic steatohepatitis, defined as non-alcoholic ...
Hidekatsu Kuroda +7 more
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Research on relationship between tailing slurry concentration and ultrasonic attenuation coefficient
Gong-kuang zidonghua, 2020 In view of problem that the current tailing slurry concentration measurement method based on ultrasonic method does not directly express correlation between concentration and scattering attenuation coefficients and viscous attenuation coefficients, the ...
WANG Jianxin, CHENG Junhao
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Investigation of Gamma Ray Buildup Factor for some Shielding Absorber
Cumhuriyet Science Journal, 2022 The purpose of this research is to observe and understand the processes by which gamma rays are attenuated in passing through absorber, and the effects of shielding geometry.
Hiwa Mohammad Qadr
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Bayesian analysis of depth resolved OCT attenuation coefficients
Scientific Reports, 2021 Optical coherence tomography (OCT) is an optical technique which allows for volumetric visualization of the internal structures of translucent materials.
Lionel D. Fiske +6 more
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Single-shot attenuation coefficient estimation for ultrasound contrast agents
Frontiers in Physics, 2022 Ultrasound contrast agents (UCAs) have broadened the scope of ultrasound imaging and therapeutic applications. One of the parameters of interest when measuring the response of UCAs to ultrasound is their frequency-dependent attenuation coefficient.
Jasleen Birdi +8 more
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