Solubility improvement of progesterone from solid dispersions prepared by solvent evaporation and co-milling [PDF]
, 2020 The aim of this contribution was to evaluate the impact of processing methods and polymeric carriers on the physicochemical properties of solid dispersions of the poorly soluble drug progesterone (PG). Five polymers: hydroxypropyl methylcellulose (HPMC),
Al-Obaidi, Hisham +3 more
core +1 more source
An Unusual Moving Boundary Condition Arising in Anomalous Diffusion Problems [PDF]
, 1995 In the context of analyzing a new model for nonlinear diffusion in polymers, an unusual condition appears at the moving interface between the glassy and rubbery phases of the polymer.
Cohen, D. S., Edwards, D. A.
core +1 more source
Transition from anomalous kinetics toward Fickian diffusion for Si dissolution into amorphous Ge [PDF]
Applied Physics Letters, 2008 Over the last years, several experimental and theoretical studies of diffusion kinetics on the nanoscale have shown that the time evolution (x∝tkc) differs from the classical Fickian law (kc=0.5). However, all work was based on crystalline samples or models, so far.
Balogh, Z. +9 more
openaire +2 more sources
Non-Fickian Interdiffusion of Dynamically Asymmetric Species: A Molecular Dynamics Study [PDF]
, 2005 We use Molecular Dynamics combined with Dissipative Particle Dynamics to construct a model of a binary mixture where the two species differ only in their dynamic properties (friction coefficients).
Duenweg, Burkhard +2 more
core +3 more sources
Geofluids, 2023 Considering that karst caves, underground rivers, and dissolution fractures in shallow carbonate formation in the Sichuan Basin are extremely developed, leakage, failure and plugging difficulties are easy to occur in the drilling process.
Bin Wu +8 more
doaj +1 more source
An alternative way of plotting the data and results of models of J/psi suppression [PDF]
, 2002 We propose an alternative way of looking at data on anomalous J/psi suppression. The proposed method is in principle equivalent to the one used by the NA50 Collaboration, but it permits to visualize separate contributions of individual processes ...
Pisut, Jan, Pisutova, Neva
core +2 more sources
Understanding the enhanced rates of hydrogen evolution on dissolving magnesium
Electrochemistry Communications, 2019 Despite the growing interest in Mg and its alloys, their use has been largely limited due to their high reactivity in aqueous environments. Improving the understanding of the basic principles of Mg corrosion represents the first step to explain and ...
J.A. Yuwono +4 more
doaj +1 more source
Bunburra Rockhole: Exploring the geology of a new differentiated asteroid [PDF]
, 2017 Bunburra Rockhole is the first recovered meteorite of the Desert Fireball Network. We expanded a bulk chemical study of the Bunburra Rockhole meteorite to include major, minor and trace element analyses, as well as oxygen and chromium isotopes, in ...
Benedix, G.K. +11 more
core +1 more source
The mineralogy, petrology, and composition of anomalous eucrite Emmaville [PDF]
, 2017 The Emmaville eucrite is a relatively poorly studied basaltic achondrite with an anomalous oxygen isotope signature. In this study, we report comprehensive mineralogical, petrographic, and geochemical data from Emmaville in order to understand its ...
Barrat +47 more
core +1 more source
Bioerosion by microbial euendoliths in benthic foraminifera from heavy metal-polluted coastal environments of Portovesme (south-western Sardinia, Italy) [PDF]
Biogeosciences, 2012 A monitoring survey of the coastal area facing the industrial area of Portoscuso-Portovesme (south-western Sardinia, Italy) revealed intense bioerosional processes.
A. Cherchi +3 more
doaj +1 more source