Browsing University Publications by Title
Now showing items 1658-1677 of 4358
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A Rational Exponential Model for Unconstrained Non-Linear Optimization
( Qatar University , 2002 , Article)In this Paper, a new algorithm based on the non-quadratic model is suggested for solving unconstrained optimization problems which modifies the classical conjugate gradiant methods. This technique has the same properties ... -
A rational logarithmic model for unconstrained non-linear optimization
( Qatar University , 1997 , Article)A new non-quadratic model is proposed for solving unconstrained optimisation problems which modifies and develops the classical conjugate gradient methods. The technique has the same properties as the classical conjugate ... -
Rational Synthesis, Characterization, and Application of Environmentally?Friendly (Polymer?Carbon Dot) Hybrid Composite Film for Fast and Efficient UV Assisted Cd2+ Removal from Water
( Qatar University Press , 2020 , Poster)Carbon-dots (CDs) are of particular interest in numerous applications. However, their efficiency for heavy metal removal from wastewater was not yet reported. Herein, we rationally synthesized CDs from petroleum-coke-waste ... -
Rayn formation, a new name for the permian khuff formation (S. S.) In saudi arabia
( Qatar University , 1991 , Article)The rank of the Khuff Formation (late Carboniferous-late Permian) in Saudi Arabia is raised to group status and it is divided into Unayzah (late Carboniferous-early Permian) and Rayn (middle-late Permian) Formations. The ... -
Re-defining the Role of Interactive Architecture in Social Relationships
( Qatar Univesrity Press , 2021 , Conference Paper)With rapid advance of new technologies and mediated built space has shifted from a static context of functions serving users to a new participant of social relationships. Interactive abilities and computational power allow ... -
Re-forming the knot - ʿabdullāh al-ghumārī's iconoclastic sunnī neo-traditionalism
( جامعة قطر , 2018 , Article)This article studies the life and thought of Abdullah al-Ghumari (d. 1413/1993), an accomplished, yet uncelebrated, Muslim scholar from Morocco. After a brief biographical sketch, I present an overview of his thought ... -
Recent Advances In Coring And Core Analysis Technology New Technique To Improve Reservoir Evaluation
( Qatar University , 2000 , Article)The main goal of core analysis is to reduce uncertainty in reservoir evaluation by providing data representative of the reservoir at in situ conditions. Basic core analysis measurements are unchanged, but advances in core ... -
Recent Benthic Foraminifera from the Local Water of Qatar, Arabian Gulf
( Qatar University , 2000 , Article)ABSTRACT In the present study, fifty species of Foraminifera are identified from the bottom sediments of the local Qatari waters on the eastern and northern sides of Qatar Peninsula in the Arabian Gulf. These comprise 7 ... -
The reception of the Quiet American in the late fifties
( Qatar University , 1981 , Article) -
Recognition Of Cursive Texts Using Hamming Neural Nets
( Qatar University , 1994 , Article)Hamming Neural networks are employed for cursive text character separation and recognition. The digitized image of the scanned text is first enhanced by applying simple contrast stretching algorithm. Image registration is ... -
Reconstructing identities and the idea of Global Regionalism
( Qatar Univesrity Press , 2021 , Conference Paper)We live in a time of great anxiety and change; a time of shifting allegiances where the certainties upon which we have relied have simply vanished. Our once familiar political landscape is in flux; pandemics, civil rights, ... -
Record of a fruiticose lichen, Ramalina farinacea (L.) Ach. for Qatar
( Qatar University , 1997 , Article)Lichens are thallophytic lower plants. Ramalina farinacea (L.) Ach., family Ramalinaceae, is the only fruticose lichen recorded in Qatar. It occurs on stony terrain bordering the coastline in association with other more ... -
Records of Marine Interstitial Hymenostomatid Ciliates from the Jubail Marine Wildlife Sanctuary, Saudi Arabia
( Qatar University , 1999 , Article)Sediment samples were collected at low tide from various localities of Jubail Marine Wildlife Sanctuary in the Arabian Gulf during 1996-1997 for the study of the marine interstitial ciliate fauna of the Sanctuary. Eleven ... -
Recycled Concrete Used in Subbase in Potential Use for Road Base and Cement Bounded Material (CBM)
( Qatar Univesrity Press , 2020 , Conference Paper)"Structure life cycle and economic developments in Qatar can lead to reconstruction as well as demolition of structures such as buildings and roads. One of the main wastes from demolition work is concrete and reinforced ... -
Recycled Polypropylene Fibres for Reinforcing Cement Mortar under Arid Conditions
( Qatar University Press , 2023 , Conference Paper)Concreting in arid environment is a delicate operation, due to many problems, such as the premature evaporation of mixing water, which affects the material consistency and the shrinkage cracking which threatens its durability. ... -
Recycling of Tetra Pak for Space and Water Heating by Blending with Phase Change Materials
( Qatar University Press , 2023 , Conference Paper)A rapid rise in demands for thermal comfort in the building sector necessitates higher energy consumption for air conditioning, ventilation, space, and water heating systems. Recently, phase change materials (PCMs) have ... -
Red cell superoxide dismutase in patients with different liver diseases
( Qatar University , 1995 , Article)Supcroxidc dismutase (SODs, supcroxidc oxidoreductasc, E.C. 1.15.1.1.) activity has been estimated in red blood cells from patients suffering from liver cirrhosis and hcpatoccllular carcinoma. Erythrocytcs supcroxide ... -
Redesigning the Schedule Time Slots for Qatar University to Cope with Local Specificities
( Qatar University , 2015 , Article)This study is concerned with the redesign of the class meeting pattern at Qatar University. It examines the existing meeting pattern based on its operational efficiency, its alignment with the strategic plan of the ... -
Reduced Snubber Circuit Elements For Pwm Voltage Source Inverter
( Qatar University , 2002 , Article)This paper presents the description and simulation of a new proposed arrangement of RLD/RCD snubber circuit used with pulse width modulated voltage source inverter. The new arrangement allows minimizing the number of active ... -
Reducing the incidence of exposure to blood and body fluids
( Qatar University Press , 2020 , Poster)Methods: we used a Pareto chart to identify priority areas for our project based on magnitude of incidence of BBF exposures. A driver diagram was developed with four main primary drivers including risk awareness, attitudes ...