Browsing University Publications by Title
Now showing items 1919-1938 of 4358
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Study of A Time Dependent Double -Diffusive Salinity Problem
( Qatar University , 1989 , Article)The time-dependent, double diffusive stability problem for a horizontal layer of salty water bounded by two rigid isothermal surfaces is analyzed using a linear perturbation technique. Initially, the layer is subjected to ... -
Study Of Aerobiology Of Alexandria, Egypt
( Qatar University , 1991 , Article)The present study provides a survey of atmospheric pollen and fungal spores in the city of Alexandria with the aim of supplying information that may be useful in the treatment of aeroallergies. Considerable attention has ... -
A Study Of Atmospheric Transparency Over Qena In Upper Egypt
( Qatar University , 1995 , Article)Atmospheric transparency over Qena/Egypt has been studied for direct solar radiation values . which were calculated from global and diffuse solar radiation measurements . The mean monthly of the instantaneously transparency ... -
Study of carbonate rocks of the khuff and Jubaila formations , saudi arabia by Thermal derivatography
( Qatar University , 1997 , Article)Thermal derivatographic analysis of the Khuff and Jubaila carbonate rocks shows that calcite and / or dolomite (of calcitic type) are the main constituent minerals. Their differential thermal and thermogravimetric behaviours ... -
Study of communication behaviour in children: Affiliative and Agonistic Exchange in toddler-peer interaction
( Qatar University , 1992 , Article) -
The Study Of Compaction Using Seismic Velocity Analyses In East - Baghdad Oil Field (Mid - Iraq)
( Qatar University , 1995 , Article)The present study deals with estimation of empirical equations relating travel time (T) and transit time (T.T) with depth (Z) which are expressed in the forms : T = BZN + A, log T. T. = - s log Z + H For this aim, ... -
A study of contamination of the northern Jordan valley agricultural fields by various metal ions using regression analysis.
( Qatar University , 2000 , Article)Geochemical analysis were performed in lower subsurface soil samples of 10,20,30 and 40cm depth, collected from seven regions in the northern Jordan valley. Eighteen descriptors (variables) for each sample were used. Among ... -
Study of Magnetic Properties and Lattice Dynamics of the Cdx Co1-x Ferrite System by MossbauerEffect
( Qatar University , 1981 , Article)The magnetic properties and lattice dynamics of the spinel ferrite system Cdx Coi-x Fe^ 04 (x = 0.0, 0.1, . . . , and 1.) were studied in the temperature range between 78 to 800°K. The results showed that the samples with ... -
A study of nutrient dynamics in the coastal dunes of northwestern egypt.
( Qatar University , 1990 , Article)Biomass and nutrient cycling are evaluated in sites of Ammophita arenaria and Onoaisvaginalis which are among the most common species growing on the coastal dunes of the western desert of Egypt. Both species accumulate N ... -
A Study Of Student's Independent Thinking As Manifested In Real Achievement Situation
( Qatar University , 1998 , Article)The major aim of the paper is to examine to what extent expectancy as an expression of perceived ability is related to amount of independent thinking as manifested in the examination situation, and to what extent the latter ... -
A study of the conflict between the individual and society in Nathaniel Hawthorne"s the scarlet letter.
( Qatar University , 1996 , Article) -
Study of the Hydration of Blast-Furnace Slag Cement and Portland Cement by Mossbauer Spectroscopy
( Qatar University , 1982 , Article)Mossbauer spectra have been measured for the hydrated blast-furnace slag cement and Portland cement pastes at different times of hydration of 1. 3. 7. 28 and 90 days. The spectra showed the existence of iron atoms, Fe3 (T) ... -
Study of the influence of xylene-based chemical Additive on crude oil flow properties and Paraffin deposition inhibition
( Qatar University , 2005 , Article)Paraffin related problem appears through out the production process of nearly all kinds of crude oils all over the world. It also appears in the dewatering process and the long distance crude oil transportation. In Nigeria, ... -
A study of the interlanguage of some Arabic students of English
( Qatar University , 1988 , Article)In this study, the contrastive analysis method is used to investigate the lnterlanguage (IL) developmental sequences of the acquisition of some aspects of English by Arabic-speaking learners. The learners, whose language ... -
A study of the international harmonization of Accounting Standards: an examination of their relevance for national accounting
( Qatar University , 1994 , Article)Not available -
Study of Turbulence in Open Channels Using Two-Equation Models
( Qatar University Press , 2023 , Conference Paper)Prediction of the sediment transport in streams requires an accurate estimation of bed shear stress (for bed load) and eddy viscosity (for suspended load). In general, shallow water models employ empirical relationships ... -
Study on Business Value of Building Information Modelling - Applied in Developing Countries
( Qatar University Press , 2023 , Conference Paper)This research investigates the business value of implementing building information modelling (BIM) in developing countries. The study of BIM in this research is conducted with a focus on its return on investment (ROI) in ... -
A study on summability factors of infinite series
( Qatar University , 1997 , Article)A new theorem concerning N,p q , summability factors of infinite series are deduced. -
Study The Effect of Classical And Rapid Thermal Annealing on The Electrical Characteristics of P-Ge/P-si Heterojunction
( Qatar University , 2002 , Article)This paper describes the effect of classical thermal (CTA) and rapid thermal annealing (RTA) on the electrical characteristics (I-V, C-V) of isotype Ge/Si heterojunction. The I-V characteristics were improved after annealing ... -
Subcritical and Supercritical Operation of Innovative Thermal Mechanical Refrigeration System
( Qatar University Press , 2020 , Poster)Around 17% of the global generated energy is consumed for residential, commercial, and transportation refrigeration. The current cooling technologies utilize refrigerants with high Ozone Depletion and Global Warming ...