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On the Valence State of Iron in Sr0.52+Ca0.52+Fe0.54+ Me0.54+O32−
(
WILEY-VCH Verlag GmbH & Co.
, 1989 , Article)
Powder samples of Sr0.5Ca0.5Fe0.5Me0.5O3 (Me = Co, Zr or Mn) and Sr0.3La0.7FeO3 are investigated by X-ray diffraction and Mossbauer effect spectroscopy.
Analysis of the completely ordered spectra suggested three kinds ...
Absolute evaluation of ferrous and ferric concentration in Ca amphibole
(
WILEY-VCH Verlag
, 1982 , Article)
Studies are made of M?sshauer absorption of 57Fe in a Ca-amphibole schist sample at room and liquid nitrogen temperatures. The absolute concentration and the recoilless fraction for ferrous and ferric cations are determined ...
Bench-scale and packed bed sorption of methylene blue using treated olive pomace and charcoal
(
Elsevier Ltd
, 2006 , Article)
A combination of olive pomace after solvent extraction and charcoal produced from the solid waste of olive oil press industry was used as an adsorbent for the removal of methylene blue (MB) dye from aqueous solutions. Batch ...
Simulation of large capacity MSF brine circulation plants
(
Elsevier B.V.
, 2006 , Article)
New multistage flashing desalination units (MSF) are being constructed with large capacity that may vary from 50,000 to 75,000 m3/d. This is almost 2–3 times the conventional unit capacity of 27,000–32,000 m3/d, which were ...
Relay selection in underlay cognitive networks with fixed transmission power nodes
(
John Wiley & Sons, Ltd.
, 2013 , Article)
Underlay cognitive networks operate simultaneously with primary networks satisfying stringent interference constraints, which reduces their transmission power and coverage area. To reach remote destinations, secondary ...
Global patterns and predictions of seafloor biomass using random forests
(
Public Library of Science
, 2010 , Article)
A comprehensive seafloor biomass and abundance database has been constructed from 24 oceanographic institutions worldwide within the Census of Marine Life (CoML) field projects. The machine-learning algorithm, Random ...
On fixed points of Berinde's contractive mappings in cone metric spaces
(
North University of Baia Mare
, 2010 , Article)
In this paper we establish some common fixed point theorems for two self-mappings satisfying a generalized contractive condition. This result generalizes well known comparable results in the literature. As an application, ...
On Transformations and Perturbations of Orthogonal r-Frames
(
WILEY-VCH Verlag GmbH & Co.
, 1993 , Article)
A decomposition of Cn into a finite direct sum of orthogonal subspaces can be conveniently represented by its orthogonal projector frame, which is the collection of the corresponding orthogonal projectors. Two such ...
Effect of hyperlipidemia on ketoconazole-midazolam drug-drug interaction in rat
(
John Wiley & Sons, Ltd.
, 2011 , Article)
Hyperlipidemia (HL) was previously shown to lower liver uptake of the more potent (-) enantiomer of ketoconazole (KTZ) in rat. The current study examined the possible modifying influence of experimental HL on a KTZ ...
A Magnetic Transport Middle Eastern Positron Beam
(
Elsevier
, 2008 , Article)
A magnetically guided slow positron beam is being constructed at Qatar University and is currently being optimised for regular operation. This is the first positron beam in the Middle East, as well as being the first Arabic ...