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السجلات المعروضة 11 -- 20 من 2674
Ventifacts distribution in Qatar
(
John Wiley & Sons, Ltd
, 1985 , Article)
This study attempts to investigate the distribution of ventifacts in Qatar. It is believed that ventifacts are confined to the areas within about 5 km of the Miocene or Mio-Pliocene Hofuf formations and the spreads of ...
A NEW DEPOSITIONAL MODEL AND SEQUENCE STRATIGRAPHIC INTERPRETATION FOR THE UPPER JURASSIC ARAB "D" RESERVOIR IN QATAR
(
Blackwell Publishing Ltd
, 2001 , Article)
Deposition of the Arab Formation on the Arabian Plate followed a eustatic sea-level high during the Oxfordian that deposited the open-marine shelfal carbonates of the Hanifa and Jubaila Formations. Oolite/peloidal shoals ...
Trust in development: some implications of knowing in indigenous knowledge
(
Blackwell Publishing Ltd.
, 2010 , Article)
The indigenous knowledge (IK) initiative in development has met with limited success. The cultural relativity of knowledge � i.e. what qualifies as justified belief � may partly explain why. Drawing on New Guinea Highlands' ...
Gamma irradiation effects on polymethyl methacrylate
(
WILEY-VCH Verlag
, 2007 , Article)
The effect of gamma-irradiation on the structure of polymethyl methacrylate (PMMA) has been investigated. In this study, the PMMA specimens were gamma-irradiated at doses in the range of 0-1000 kGy and measured by means ...
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 ...
Creativity/Productivity of Child's Language: A Case of Qatari Dialect
(
Qatar University
, 1999 , Article)
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 ...