Browsing Qatar University Institutional Repository by Title
Now showing items 15571-15590 of 27275
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OPTIMIZING PILOT-SCALE PERFORMANCE OF SUPERHYDROPHOBIC MEMBRANES BY DIRECT-CONTACT MEMBRANE DISTILLATION
(2023 , Dissertation)Membrane technology is a promising approach that offers effective solutions for treating saline wastewater, not only to meet the discharge standard, but also to offer the opportunities for water reuse. This study highlights ... -
Optimizing polypharmacy management in the elderly: a comprehensive European benchmarking survey and the development of an innovative online benchmarking application
( Frontiers Media , 2023 , Article)Background: Polypharmacy, defined as the simultaneous use of multiple medications by a patient, is a worldwide problem of rising prevalence. Paving the way for drug interactions, adverse drug reactions and non-adherence, ... -
Optimizing postdisaster reconstruction planning for damaged transportation networks
( American Society of Civil Engineers (ASCE) , 2009 , Article)The limited availability of reconstruction resources is one of the main challenges that often confront postdisaster recovery of damaged transportation networks. This requires an effective and efficient deployment and ... -
Optimizing resource utilization during the recovery of civil infrastructure systems
( American Society of Civil Engineers (ASCE) , 2010 , Article)Postdisaster recovery efforts of damaged civil infrastructure systems need to be optimized in order to alleviate the adverse impacts of natural disasters on local societies and economies. This paper presents an innovative ... -
Optimizing textile dye removal by activated carbon prepared from olive stones
( Elsevier B.V. , 2019 , Article)Activated carbon prepared from black and green olive stones were successfully used as an adsorbing agent to remove methylene blue from water. Scanning electron microscopy showed how the deep abundant cavities were occupied ... -
OPTIMIZING THE DISTRIBUTION CENTRE LOCATIONS FOR AGRICO FOOD COMPANY USING ANYLOGISTIX SIMULATION
(2023 , Master Thesis)A supply chain is an integral part of any organization. Every company needs effective, robust, resilient supply chain processes to remain profitable and competitive. Resilience can be defined as the ability of a supply ... -
Optimizing the Extraction Conditions of Hydroxytyrosol from Olive Leaves Using a Modified Spherical Activated Carbon: A New Experimental Design
( Hindawi , 2022 , Article)The purification of hydroxytyrosol from olive leaves extract by modified activated carbon was studied experimentally in a batch system and a column by adsorption and desorption processes. The extraction yield reached 90% ... -
Optimizing the Planning of Hosting Mega Sports Events: A Case Study for FIFA World Cup Qatar 2022
(2024 , Dissertation)Qatar will be hosting the 2022 FIFA World Cup (FWC22) becoming the first nation in the Middle East to ever host such an event. However, being the first country to host such a sporting event and the fact that the event ... -
Optimizing The Remediation Of Organophosphorus Pesticide Profenofos From Water Using Activated Date Pits: Mechanistic Studies
(2019 , Master Thesis)The aim of the study was to examine the efficiency of date pits as an adsorbent to remove the organophosphate pesticide profenofos from wastewater. Various adsorption isotherms models namely Langmuir isotherm, Freundlich ... -
Optimizing the Thermal Resistance of Concrete Using The Palm Tree Fronds Fibers
( Qatar Univesrity Press , 2020 , Conference Paper)In the past few years, the issue of global warming has become increasingly visible. Record high as well as record low temperatures are being broken worldwide. Snow is melting in the poles and less sunrays are being reflected ... -
Optimizing university campus shuttle bus congestion focusing on system effectiveness and reliability: A combined modeling based-routing approach
( IEOM Society , 2021 , Conference Paper)Increased vehicular queuing inside universities has amounted to pressing concerns for staff and students, distorting their time schedules to reach classes and office buildings on time. This paper attempts to alter the ... -
Optimizing Use Of Marshall Asphalt Mix Design
( Qatar University , 1997 , Article)Rutting has been a problem in Qatar's highway pavements since it began designing asphalt mixtures with the Marshall Method in the early 1990's. This paper describes specifications and rules-of-thumb which have been ... -
Optimum carbon nanotubes' content for improving flexural and compressive strength of cement paste
( Elsevier Ltd , 2017 , Article)This study investigated the effect of multi-walled carbon nanotubes’ (MWCNTs) weight fraction on the setting time and mechanical properties of cementitious composites. Different cement mixes containing CNT-to-cement weight ... -
Optimum Cutting Schedule Of Reinforcing Steel Bars
( Qatar University , 1999 , Article)Reinforcing steel bars are generally procured in standard lengths. The cutting of standard steel bars to the specified lengths usually yields an appreciable amount of steel waste. Minimization of steel waste problem is of ... -
Optimum Design Of Concrete Slab Forms
( Qatar University , 1996 , Article)This paper presents a design optimization method for concrete slab forms. This procedure was formulated to provide a safe slab form design with minimum cost. The proposed method considers in its design process the cost of ... -
Optimum design of haptic seat for driving simulator
( Association for Computing Machinery , 2014 , Conference Paper)This work aims to design and develop an optimal vibrotactile seat to provide a high level of satisfaction to the driver. The main critical design parameters were considered and experiments were conducted to investigate the ... -
Optimum design of n continuous stirred-tank bioreactors in series for fermentation processes based on simultaneous substrate and product inhibition
( MDPI AG , 2021 , Article)Optimization of the continuous fermentation process is important for increasing efficiency and decreasing cost, especially for complicated biochemical processes described by substrate and product inhibition. The optimum ... -
Optimum Design of Plane Trusses Using Mathematical and Metaheuristic Algorithms on a Spreadsheet
( Qatar University Press , 2023 , Conference Paper)Mathematical optimization refers to the process of finding the values of variables that maximize or minimize a function. Structural optimization is the process of designing a structure in such a way as to minimize its ... -
Optimum Dispersion Parameters of Carbon Nanotubes: Concrete Strength by Response Surface Methodologies
( Qatar Univesrity Press , 2020 , Conference Paper)"This paper implements Response Surface Methodologies (RSM) techniques to illustrate the maximum carbon nanotubes (CNTs)-concrete mechanical properties responses to the length, weight fraction and treatment variables. ... -
An Optimum Performance of A Flat-Type Solar Air Heater With A Porous Absorber
( Qatar University , 1989 , Article)This investigation is concerned with the design and performance of a flat solar air heater in which air flows perpendicular from a vented transparent cover through a porous absorber plate. The design phase involves a ...
