Diffusion coefficient
Mathematical methodologies for calculating the mass diffusion coefficient of bananas during drying
... the diffusion coefficient is a function of temperature and moisture ...mathematical diffusion model, there is an improvement in the fitting process of the theoretical results to the ex- perimental ...
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MODELING OF BASIL ESSENTIAL OIL EXTRACTION WITH VARIABLE DIFFUSION COEFFICIENT
... The model was then applied to the basil essential oil extraction process, whose experimental data are presented in Cassel et al. (2009). Initially, we reproduced the solutions obtained by Cassel et al. (2009), ...
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Relationship between apparent diffusion coefficient and tumour cellularity in lung cancer.
... Our results experimentally verifies the negative relationship between ADC and cellularity in a more quantitative manner and may be of value for more accurately modeling the diffusion process. Higher ...
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Preoperative axillary staging with 3.0-T breast MRI: clinical value of diffusion imaging and apparent diffusion coefficient.
... and diffusion-weighted sequences. Diffusion-weighted imaging (DWI) exploits the random motion of water molecules, and the contrast depends on tissue cellularity, extracellular tortuosity, and the integrity ...
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Objective value on Apparent diffusion coefficient (ADC) map to categorize the intensity of diffusion-weighted imaging (DWi) restriction for prostate cancer detection on multiparametric prostate Mri
... Apparent diffusion coefficient (ADC) value was the best predictor of positivity for prostate cancer, with mean value of ...of diffusion restriction (AUC of ...
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Spatiotemporal correlations between blood-brain barrier permeability and apparent diffusion coefficient in a rat model of ischemic stroke.
... apparent diffusion coefficient of water (ADC) and blood-brain barrier (BBB) permeability after ischemia have been suggested, though the correlation between ADC alterations and BBB opening remains to be ...
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Assessment of treatment response by total tumor volume and global apparent diffusion coefficient using diffusion-weighted MRI in patients with metastatic bone disease: a feasibility study.
... body diffusion-weighted MR imaging (WBDWI) have shown high diagnostic accuracy in detecting metastatic bone disease in patients with non-small cell lung cancer, malignant melanoma and breast cancers ...apparent ...
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Gas content derivative data versus diffusion coefficient
... unipore diffusion model (Crank, 1975), which is mainly concerned in studying the gas cir- culation in coal porous structure, ...the diffusion process, and the other one is the so-called Ruckenstein’s ...
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<i>Letter to the Editior</i><br>Testing the hypothesis of the influence of neutral turbulence on the deduction of ambipolar diffusivities from meteor trail expansion
... ambipolar diffusion coefficient of ions in the ...of diffusion processes in the atmosphere, Hall (2002) found a possibility that the fading of radar echoes might be augmented by neutral air ...
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Immersion freezing of water and aqueous ammonium sulfate droplets initiated by humic-like substances as a function of water activity
... the diffusion coefficient of water in supercooled aqueous solutions, interfacial surface tensions between ice nucleus and surrounding medium, dis- tribution of contact angles, or active sites are employed ...
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Revista Brasileira de Engenharia Agrícola e Ambiental
... effective diffusion coefficients with the increment in temperature, which indicates greater magnitude of water transfer from inside to the periphery of the product (Figure 2), as demonstrated by Silva et ...
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Radiol Bras vol.46 número3
... apparent diffusion coefficient (ADC) of liver metastasis in a patient undergoing chemotherapy has shown to be an effective early marker for predicting therapeutic response, anticipating changes in tumor ...
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Estimates of eddy turbulence consistent with seasonal variations of atomic oxygen and its possible role in the seasonal cycle of mesopause temperature
... However, Smith (2004), Hocking (1999), and other au- thors (for example, Brasseur and Solomon, 1986; Brasseur et al., 2000) argue that the impact of gravity waves is restricted to their induced change in the zonal and ...
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J. Braz. Chem. Soc. vol.14 número4
... the diffusion coefficient value D w/o will be closer to the one found from DLS measurements, the limiting current will be theoretically around 6 nA, calculated from equation (1) using D w/o = ...
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Pesqui. Oper. vol.31 número3
... Different Diffusion Coefficients of Vasicek Dynamics. As the diffusion coefficient reaches higher levels, it becomes better to exercise the American call before the ...
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Direct measurement of diffusion in olfactory cilia using a modified FRAP approach.
... the diffusion coefficient D was obtained by modeling the intraciliar fluorescence dynamics prior to, during and after ...the diffusion coefficient ...and diffusion steps, taking into ...
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Heat and mass transfer coefficients and modeling of infrared drying of banana slices
... Banana is one of the most consumed fruits in the world, having a large part of its production performed in tropical countries. This product possesses a wide range of vitamins and minerals, being an important component of ...
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Thermodynamic properties and drying kinetics of Bauhinia forficata Link leaves Fernanda P. da Silva
... effective diffusion coefficient and the thermodynamic properties of Bauhinia forficata Link leaves, considering two forms of thickness measurements and to describe the process by fitting mathematical ...
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A new analytical formulation of retention effects on particle diffusion processes
... the diffusion parameters for more complex phenomena requires at least a reliable analytical ...in diffusion pro- cesses for some dispersing substances immersed in particular supporting media (Atsumi 2002, ...
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Efeito da temperatura do ar e da composição da dieta durante o processo de secagem de pellets usados na alimentação do haliote japonês (Haliotis discus hannai)
... The aim of this research was to study the effect of air-temperature and diet composition on the mass transfer kinetics during the drying process of pellets used for Japanese Abalone (Haliotis discus hannai) feeding. In ...
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