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Feeding Behaviour and Food Selection of Dhab Uromastyx microlepis From Wild Vegetation
(
Qatar University
, 2001 , Article)
The present study deals with the food selection and feeding behaviour of Uromastyx microlepis 'dhab' spiny tailed lizard during a period of one complete year inhabiting AL-Gassim desert area. Climatically the area can be ...
Nitrogen Transformations as affected by some factors at cultivated soils in Saudi Arabia
(
Qatar University
, 2001 , Article)
The influence of serial concentration of salts (0.5, 1.0 and 1.5%), application of organic matter (0.5, 1.0 and 1.5% of wheat strat) and varying soil moisture content 50, 70 and 90%) on nitrification in sandy loam soil was ...
Influence of The Activated Qatari Attapulgite Clay Admixture on The Mechanical Properties and Hydration Kinetics of Ordinary Portland Cement
(
Qatar University
, 2001 , Article)
Blended cements are types of cements containing additives other than those used m Portland cement, which have considerable technological interest, because such addition increases the chemical resistance to sulfate and ...
Gravitational Instability of a Radiating Gas Cloud with Variable streams
(
Qatar University
, 2001 , Article)
The self-gravitating instability of a radiating gas cloud possessing variable streams is investigated. The self-gravitating force is destabilizing according to restrictions, the radiation has a strong stabilizing influence ...
Helminth parasites of fishes from the Arabian Gulf 9. some hemiurids (Digenea) from fishes of Qatari waters
(
Istituto di Parassitologia Medica
, 2001 , Article)
Four Hemiurids collected from some marine fishes caught off Qatari waters int he Arabian Gulf are described and compared with related species previously reported from the Arabian Gulf and the Indian Ocean. These include ...
Frequency and harmonics evaluation in power networks using fuzzy regression technique
(
IEEE Computer Society
, 2001 , Conference Paper)
A new technique for frequency and harmonic evaluation in power networks is proposed in this paper. This technique is based on fuzzy linear regression and uses the digitized voltage samples, which are fuzzy numbers, to ...
Microstructure of heat-treated steel probed by positron annihilation
(2001 , Conference Paper)
Positron annihilation lifetime technique has been applied to study the microstructure change in steel after heat treatment. For this purpose, the specimens are heat treated in various manners; normalizing, annealing, ...
On the application of αβ-transformation for power systems frequency relaying
(
Institute of Electrical and Electronics Engineers Inc.
, 2001 , Conference Paper)
This paper presents a new and very accurate algorithm for power system frequency measurement. The proposed algorithm is based on αβ-transformation of the three phase voltages or current waveforms in the relay location, ...
Effects of harmonic distortion on the active and reactive power measurements in the time domain: A single phase system
(
IEEE Computer Society
, 2001 , Conference Paper)
A new application of the least error squares (LES) estimation algorithm is given for identifying, in the time domain, the active and reactive power from available samples of voltage and current waveforms. The digital ...
Abnormal release of toxic gases from natural gas processing plants
(
American Society of Mechanical Engineers (ASME)
, 2001 , Conference Paper)
Qatar, one of the Arabian Gulf States, possesses one of the world's largest non-associated gas fields. Most of the country's development plans are based on the preparation of natural gas for export and local use. Under ...