Results 61 to 70 of about 223,517 (193)

A Survey on Orbital Space-Occupying Lesions during a Twelve-Year Period from a Referral Center in Iran

open access: yesJournal of Ophthalmic & Vision Research, 2023
Purpose: In this study, we describe different orbital space-occupying lesions (SOLs) from a referral center in Iran. Methods: In this retrospective case series, all records of “orbital tumors” with a definite histopathologic diagnosis at a referral ...
Abbas Bagheri   +4 more
doaj   +1 more source

Quantum to Classical Transition of the Charge Relaxation Resistance of a Mesoscopic Capacitor [PDF]

open access: yes, 2007
We present an analysis of the effect of dephasing on the single channel charge relaxation resistance of a mesoscopic capacitor in the linear low frequency regime.
F. Sols   +4 more
core   +2 more sources

Temperature dependence of the conductivity of graphene on boron nitride

open access: yes, 2012
The substrate material of monolayer graphene influences the charge carrier mobility by various mechanisms. At room temperature, the scattering of conduction electrons by phonon modes localized at the substrate surface can severely limit the charge ...
Guinea, Francisco   +2 more
core   +1 more source

Optical and structural properties of aluminium oxide thin films prepared by a non-aqueous sol-gel technique [PDF]

open access: yes, 2011
Clear aluminium oxide sols without precipitation were synthesized via a non-aqueous sol-gel technique using three different alcohols (ethanol, isopropanol and n-butyl alcohol) as solvent, aluminium sec-butoxide as a precursor and acetyl acetone as a ...
Avci, Nursen   +4 more
core   +1 more source

Rheological behaviour and spectroscopic investigations of cerium-modified AlO(OH)colloidal suspensions [PDF]

open access: yes, 2011
The rheological behaviour of aqueous suspensions of boehmite (AlO(OH)) modified with different Ce-salts (Ce(NO3)3, CeCl3, Ce(CH3COO)3 and Ce2(SO4)3) was investigated at a fixed Ce/Al molar ratio (0.05).
Bleta, Rudina   +3 more
core   +2 more sources

Supercurrent flow through an effective double barrier structure

open access: yes, 1995
Supercurrent flow is studied in a structure that in the Ginzburg-Landau regime can be described in terms of an effective double barrier potential. In the limit of strongly reflecting barriers, the passage of Cooper pairs through such a structure may be ...
A. A. Abrikosov   +21 more
core   +1 more source

Effect of PEG on rheology and stability of nanocrystalline titania hydrosols [PDF]

open access: yes, 2009
Very stable titania hydrosols were prepared by fast hydrolysis of titanium isopropoxide in a large excess of water. XRD patterns show that these sols contain nanocrystals (5–6 nm) of anatase (70%) and brookite (30%).
Alphonse, Pierre   +2 more
core   +2 more sources

The vertical transport of methane from different potential emission types on Mars [PDF]

open access: yes, 2017
The contrasting evolutionary behavior of the vertical profile of methane from three potential release scenarios is analysed using a global circulation model with assimilated temperature profiles.
Atreya   +27 more
core   +1 more source

Sols contaminés, sols

open access: yes, 1996
La décontamination des sols pollués, phénomène longtemps occulté, est devenu une préoccupation majeure des pouvoirs publics et des industries. Les Pays-Bas et la Région flamande ont déjà légiféré dans ce domaine. La République fédérale d'Allemagne est sur le point de le faire.
SERES (Séminaire de droit de l'urbanisme et de l'environnement) - UCL   +1 more
openaire   +1 more source

Microstructural properties of non-supported microporous ceramic membrane top-layers obtained by the sol-gel process [PDF]

open access: yes, 1996
Dried and calcined non-supported membrane top-layers of SiO2, SiO2/TiO2, SiO2/ZrO2 (10, 20 and 30 mol% TiO2 and ZrO2, respectively) and SiO2/Al2O3 (10 mol% AlO1.5) were prepared using acid catalyzed hydrolysis and condensation of alkoxides in ethanol ...
Burggraaf, A.J.   +3 more
core   +2 more sources

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