Results 11 to 20 of about 1,354,784 (263)
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
core +6 more sources
Investigation of the effects of cloud attenuation on satellite communication systems [PDF]
, 2012 The aim of this project is to investigate the attenuation due to clouds at 20- 50GHz; to develop an accurate long-term prediction model of cloud attenuation applicable to slant-path links and evaluate the impact of cloud attenuation dynamics on the ...
Alawadi, Tareq A.
core +7 more sources
Time-lapse seismic attenuation as a tool for monitoring hydrocarbons and CO2 in geological materials [PDF]
, 2011 Both laboratory experiments and theoretical models have shown seismic attenuation to be sensitive to various petrophysical properties of rock and pore fluids, making attenuation a potentially useful time-lapse attribute to measure and interpret through ...
Blanchard, Thomas David
core +6 more sources
Low attenuation microwave waveguides [PDF]
, 1974 PhDAn investigation of the dispersion and attenuation characteristics of cylindrical structures supporting guided electromagnetic waves with low attenuation is described.
Al-Hariri, Ali Mohammed Bakir
core +4 more sources
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
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 Schrödinger 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
openaire +4 more sources
Validation of OSEM algorithm for attenuation correction in cardiac SPECT studies [PDF]
, 2005 Photon attenuation is believed to be one of the major causes of artefacts in cardiac SPECT studies and therefore should be corrected to improve the specificity of cardiac SPECT imaging for the detection of coronary artery disease.
Alenezi, Ahmed M
core +6 more sources
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
doaj +1 more source
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
doaj +1 more source
linear attenuation coefficient
, 2014 Citation: 'linear attenuation coefficient' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.L03544 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms ...
Francesco Priamo +2 more
+4 more sources