Browsing University Publications by Title
Now showing items 545-564 of 4356
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Developmental Stages of the Acquisition of Negation and interrogation by Children Native Speakers of Qatari Dialect
( Qatar University , 2002 , Article)The developmental stages of Qatari Dialect interrogatives and negatives are described in this paper. Four children were included in this study, ranging in age from one year and six months to nine years. According to the ... -
DFT-MD dissolution of oilfield pyrite scale using borax
( Qatar University Press , 2020 , Poster)Introduction: Oilfield scales including pyrite form in oil and gas pipelines, underground tubing, and surface equipment thus blocking the flow of fluids and hindering production. Hence, the need for the development of ... -
Diagenesis of the middle eocene "nummulite bank" of The giza pyramids plateau, Egypt: petrologic and 18o/16o evidence
( Qatar University , 1994 , Article)The Middle Eocene "nummulite bank" of the Giza Pyramids Plateau has been extensively altered diagenetically. The result of a study involving petrography, cathodoluminescence, and 18O/160 and 13C/12C data, provide information ... -
Diagenetic Trends In The Pleistocene Calcareous Ridges, Mersa Matruh Area, Egypt
( Qatar University , 1993 , Article)Ooids are a major constituent of the Pleistocene carbonates along the northwestern coastal ridges of Egypt. For a detailed diagenetic study of the rocks, the Mersa Matruh area was selected. Petrographic examination shows ... -
Diagonalizable Indefinite Integral Quadratic Forms
( Qatar University , 1991 , Article)This paper deals with some special cases on Hasse's principle about the diagonalization of Z-lattices L of indefinite regular guadratic forms over Q. It is asserted that for some specific values of a certain set D of ... -
Dietary Patterns and Glycemic Control Among Qatari Adults with Type 2 Diabetes
( Qatar University Press , 2020 , Poster)Background: No studies assess the effect of dietary pattern on glycemic control among Qatari adults with T2DM. Objective: To assess the association between dietary patterns, and glycemic control among Qatari adults with ... -
Dietary Patterns and Risk of Inflammatory Bowel Disease: Findings from a Case-Control Study
( Qatar University Press , 2021 , Poster)Scientific evidence shows that dietary patterns are associated with the risk of IBD, particularly among unhealthy and Western dietary patterns. However, Western dietary patterns are not exclusive to Western countries, as ... -
Differential Amplitude Phase Shift Keying (Dapsk): A New Modulation Method For A Turbo Code In Digital Radio Broadcasting
( Qatar University , 2003 , Article)The multilevel modulation techniques of M–Differential Amplitude Phase Shift Keying (DAPSK) have been proposed in combination with Turbo code scheme for digital radio broadcasting bands below 30 MHz radio channel. Comparison ... -
Diffuse Phase Transition In Non-Stoichiometric LiRbSO4 Crystals
( Qatar University , 1992 , Article)The influence of changing the ratio of Li2S04 on the structure transition of (RbxLi1-x)2S04 , LRS crystals, where x ranged from 0.1 to 0. 7, was studied by thermal analysis techniques in the temperature range 300 - 600 K. ... -
Diffuser Bed Construction Challenges on the Musaimeer Pump Station and Outfall Project
( Qatar University Press , 2023 , Conference Paper)Musaimeer Pump Station and Outfall project (MPSO) is a strategically important drainage asset initiated, developed, and completed by Ashghal in 2022. This project accommodates ground and storm water received from the ... -
The Diffusion Diaphragm Cell: A State-Of-The-Art-Review
( Qatar University , 1990 , Article)The diffusion diaphragm cell is considered one of the simplest and most reliable devices for measuring liquid-phase diffusivities. The design of such diaphragm cells has passed through many stages of refinement over the ... -
Diffusion Problems Arising In Mathematical Biology 2
( Qatar University , 1996 , Article)In this paper we consider long range diffusion, examine the local behavior of epidemics in Lp'q. In section 1 of chapter 2 we develop a model, the long range diffusion pressure in planktonic patchiness and then in secion ... -
Digital Humanities and Qur’ãnic Manuscript Studies: New Perspectives and Challenges for Collaborative Spaces and Plural Views
( Qatar University Press , 2020 , Article)The use of digital tools has revolutionized academic research in the humanities, changing its approaches, methodologies and outcomes. The phenomenon is comparable to the radical change induced by the introduction of printing ... -
Digital Master Builders: Disruptive construction technologies
( Qatar Univesrity Press , 2021 , Conference Paper)The United Nations Department of Economic and Social Affairs estimates that by 2050 the world's population will have increased by over 2.1 billion people (UN DESA, 2019). Providing housing and infrastructure for them would ... -
Digital Transformation Readiness in Infrastructure Project
( Qatar University Press , 2023 , Conference Paper)Digital technologies have brought a new performance momentum in all industries and businesses wherever it has been fully adopted from manufacturing to healthcare and to climate change monitoring. In construction, the digital ... -
Digital Twin for Power Plants, Energy Savings and other Complex Engineering Systems
( Qatar University Press , 2021 , Poster)Digital Twin (DT) is a digital representation of a machine, service, or production system that consists of models, information, and data used to characterize properties, conditions, and behavior of the system. Renewable ... -
Digital Twins in AEC Infrastructure and Building Management Systems
( Qatar University Press , 2023 , Conference Paper)The current practice of Architecture, Engineering, and Construction (AEC) management systems relies on time-consuming, manual methods for data collection, analyzing, and decision-making. This affects the productivity of ... -
Digitalization and usage of QR-code System in Documents Management
( Qatar University Press , 2023 , Conference Paper)Multiple official documents from various departments have contributed to the rising number of printed pages in construction projects. The dominant explanation for this trend is that printed pages have a direct relationship ... -
Dimmable LED Driver For DC Distributed Lighting System
( Qatar University Press , 2020 , Poster)This Abstract proposes a high brightness, high efficiency, dimmable LED driver based on linear current regulator technology for DC grid distribution systems. The proposed driver has excellent characteristics like the highest ... -
Dinoflagellate Cysts and Miospores from the Albian - Cenomanian Sequence of the Qarun 2 - 1 Borehole, Western Desert, Egypt
( Qatar University , 1993 , Article)Rich distinctive dinoflagellate cyst assemblages together with significant numbers of miospores were recovered from seven cuttings samples in the Qarun 2 - 1 borehole between 2718 - 2854 m. This association represents a ? ...
