Buscar
Mostrando ítems 1-10 de 904
Liquid-glassy polymer diffusion: Effects of liquid molecular weight and temperature
(Wiley VCH Verlag, 2007-05)
We examine mechanistic aspects of the diffusion between a series of liquid polystyrenes (PS) and a glassy poly(phenylene oxide) (PPO) matrix, through the use of confocal Raman microspectroscopy. The results show that the ...
Persistence for a two-stage reaction-diffusion system
(MDPI, 2020)
In this article, we study how the rates of diffusion in a reaction-diffusion model for a stage structured population in a heterogeneous environment affect the model's predictions of persistence or extinction for the ...
Persistence for a two-stage reaction-diffusion system
(MDPI, 2020)
In this article, we study how the rates of diffusion in a reaction-diffusion model for a stage structured population in a heterogeneous environment affect the model's predictions of persistence or extinction for the ...
Structure and diffuse-boundary in hydrophobic and sodium dodecyl sulfate-modified silica aerogels
(2016-03-15)
Small-angle X-ray scattering (SAXS) and nitrogen adsorption were used to study ambient pressure drying (APD) silica aerogels prepared from hydrolysis of tetraethoxysilane (TEOS) with additions of sodium dodecyl sulfate ...
Configuration-dependent diffusion can shift the kinetic transition state and barrier height of protein folding
(Natl Acad Sciences, 2007-09-11)
We show that diffusion can play an important role in protein-folding kinetics. We explicitly calculate the diffusion coefficient of protein folding in a lattice model. We found that diffusion typically is configuration- ...
Color parameters applied to pedotransfer functions in the estimation of soil attributes
(2018-07-01)
Global demands for an increased food production have prompted scientists to create technological innovations in various segments of the agricultural and environmental sectors. The use of diffuse reflectance spectroscopy ...
Diffusion and adsorption selectivities of hydrocarbons over FCC catalysts
(Elsevier Science Sa, 2007-08)
The adsorption isotherms of hexane, toluene and decane on a commercial FCC catalyst were determined in experiments performed in a CREC Riser Simulator laboratory reactor injecting different volumes of the pure hydrocarbons ...
Anomalous diffusion based on fractional calculus approach applied to drying analysis of apple slices: The effects of relative humidity and temperature
(2017)
The objective of this research was to evaluate the diffusion mechanism based on Fick's second law and anomalous diffusion modifying the drying operating conditions temperature (T) and relative humidity (RH) on apple slices ...
Clinical presentation and genetic paradigm of diffuse infiltrating retinoblastoma: a review
(Acta Cirurgica Brasileira, 2016)
Retinoblastoma is the most common childhood cancer. Thanks to modern technology and good medical access, mortality in Europe has decreased to about 5%. Diffuse infiltrating retinoblastoma is a very rare subtype of this ...
Prediction of the diffusion coefficients in multicomponent liquid refrigerant solutions
(Elsevier, 2012-04)
Immersion chilling and freezing (ICF) consist of soaking foods in a low freezing point liquid medium maintained at a low temperature that are considered secondary refrigerants. Data related to transport properties for the ...