Browsing University Publications by Title
Now showing items 552-571 of 4358
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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 ? ... -
Direct Electrochemical Synthesis of Mono, Bi And Polynuclear Complexes of Some Hydrazide and Hydrazone Derivatives
( Qatar University , 2000 , Article)Transition metal complexes of mono-, di- and tetrahydrazides and their hydrazones have been prepared by electrochemical techniques using the metal as a sacrifical anode. The electrochemical oxidation of Co, Ni and Cu in ... -
Direct Measurement of Vessel Pressure in Chicken Embryo during Development
( Qatar University Press , 2021 , Poster)Hemodynamic conditions play a critical role in embryonic cardiovascular development, and altered blood flow leads to congenital heart defects (CHD). Chicken embryos are commonly used as models of cardiac development, with ... -
Discrimination of Coastal Sediments around Qatar Peninsula, Using Remote Sensing Techniques
( Qatar University , 1999 , Article)This paper aims at demonstrating the usedfulness of remote sensing techniques in identifying various types of coastal sediments around Qatar Peninusla. In this respect, Landsat-Thematic mapper (TM) multispectral data provide ... -
Disign and Implementation of a System for Visual Programming
( Qatar University , 1999 , Article)The aim of the project of this paper is to design and implement a system for visual programming, based on data flow graphs. Data flow is applicative and based on transformations on data flowing through a graph. The system ... -
Dissecting the claims of legitimization for the ritual of female circumcision or female genital mutilation (FGM)
( Bloomsbury Qatar Foundation Journals , 2014 , Article)This work analyses the various arguments put forward by the supporters of female genital mutilation (FGM) under Islamic law to determine whether this practice has its roots in Islam, whether it is a customary or cultural ... -
Distribution and Diversity of Benthic Marine Macroalgae in Islands Around Qatar
( Qatar University Press , 2020 , Poster)Extending into the Arabian Gulf, Qatar is surrounded by a number of islands mostly scattered by the eastern coastline. With the unique physical characteristics of the Gulf which is a highly saline sea with high seawater ... -
Distribution And Mineralogy Of The Clay Deposits In Saudi Arabia
( Qatar University , 1993 , Article)The main goal of this paper is to characterize the mineral clay deposits in Saudi Arabia; especially their mineral composition, deposit size, geological setting and possible uses. Different published reports and papers on ...
