Liver fibrosis: stretched exponential model outperforms mono-exponential and bi-exponential models of diffusion-weighted MRI
Sign Up to like & getrecommendations! Published in 2017 at "European Radiology"
DOI: 10.1007/s00330-017-5292-z
Abstract: ObjectivesTo compare the ability of diffusion-weighted imaging (DWI) parameters acquired from three different models for the diagnosis of hepatic fibrosis (HF).MethodsNinety-five patients underwent DWI using nine b values at 3 T magnetic resonance. The hepatic… read more here.
Keywords: diffusion; stretched exponential; exponential model; model ... See more keywords
Temporal distribution of Fukushima-derived 137Cs in coniferous forest soil evaluated based on compartment-exponential model
Sign Up to like & getrecommendations! Published in 2019 at "Environmental Science and Pollution Research"
DOI: 10.1007/s11356-019-06803-6
Abstract: Based on the compartment and exponential models, the distribution of Fukushima-derived 137Cs was evaluated at four sampling dates in undisturbed coniferous forest soil. The compartment model was employed to evaluate the dynamic of 137Cs in… read more here.
Keywords: compartment exponential; based compartment; exponential model; model ... See more keywords
Variable time preference
Sign Up to like & getrecommendations! Published in 2019 at "Cognitive Psychology"
DOI: 10.1016/j.cogpsych.2019.03.003
Abstract: We re-examine behavioral patterns of intertemporal choice with recognition that time preferences may be inherently variable, focusing in particular on the explanatory power of an exponential discounting model with variable discount factors - the variable… read more here.
Keywords: exponential model; time; model; choice ... See more keywords
Exponential model normalization for electrical capacitance tomography with external electrodes under gap permittivity conditions
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DOI: 10.1088/1361-6501/aa6a02
Abstract: A nonlinear normalization model which is called exponential model for electrical capacitance tomography (ECT) with external electrodes under gap permittivity conditions has been developed. The exponential model normalization is proposed based on the inherently nonlinear… read more here.
Keywords: model normalization; exponential model; gap permittivity; model ... See more keywords
Measuring the concentration of urban population in the negative exponential model using the Lorenz curve, Gini coefficient, Hoover dissimilarity index, and relative entropy
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DOI: 10.4054/demres.2021.44.49
Abstract: BACKGROUND Stewart (1947) and Clark (1951) proposed that urban population density is a negative exponential function of the distance from a city’s center. This model of the spatial distribution of urban population density has been… read more here.
Keywords: urban population; negative exponential; model; concentration ... See more keywords