تصفح حسب العنوان
السجلات المعروضة 970 -- 989 من 53129
-
A mechanistic gas kick model to simulate gas in a riser with water and synthetic-based drilling fluid
( Society of Petroleum Engineers , 2020 , Conference Paper)This paper presents a simple mechanistic model to describe a gas kick in a drilling riser with water- based mud (WBM) and synthetic-based mud (SBM). This model can estimate key kick parameters such as the change in the ... -
A Mechanistic Model for Wellbore Cleanout in Horizontal and Inclined Wells
( Society of Petroleum Engineers (SPE) , 2021 , Conference Paper)The accumulation of rock cuttings, proppant, and other solid debris in the wellbore caused by inadequate cleanout remarkably impedes field operations. The cuttings removal process becomes a more challenging task as the ... -
A Mechanistic Neural Field Theory of How Anesthesia Suppresses Consciousness: Synaptic Drive Dynamics, Bifurcations, Attractors, and Partial State Equipartitioning
( Springer Verlag , 2015 , Article)With the advances in biochemistry, molecular biology, and neurochemistry there has been impressive progress in understanding the molecular properties of anesthetic agents. However, there has been little focus on how the ... -
A memetic algorithm for the bi-objective quadratic assignment problem
( Elsevier B.V. , 2019 , Conference Paper)Recently, multi-objective evolutionary algorithms (MOEAs) have been extensively used to solve multi-objective optimization problems (MOPs) since they have the ability to approximate a set of non-dominated solutions in ... -
A message from the new Editor-in-Chief
( Springer Science and Business Media Deutschland GmbH , 2021 , Article)[No abstract available] -
A Meta-Analysis to Gauge the Effectiveness of STEM Informal Project-Based Learning: Investigating the Potential Moderator Variables
( Springer Science and Business Media B.V. , 2023 , Article Review)In recent decades, informal project-based learning (PjBL) for science, technology, engineering, and mathematics (STEM) education has gained immense significance. Though some meta-analytical studies have reported the ... -
A meta-framework for modeling the human reading process in sentiment analysis
( Association for Computing Machinery , 2016 , Article)This article introduces a sentiment analysis approach that adopts the way humans read, interpret, and extract sentiment from text. Our motivation builds on the assumption that human interpretation should lead to the most ... -
A meta-review of meta-analyses and an updated meta-analysis on the efficacy of chloroquine and hydroxychloroquine in treating COVID19 infection
( Qatar University Press , 2020 , Poster)Objective: To synthesize the findings presented in systematic reviews and meta-analyses as well as to update the evidence using a meta-analysis in evaluating the efficacy and safety of CQ and HCQ with or without Azithromycin ... -
A Method for 3-D Printing Patient-Specific Prosthetic Arms with High Accuracy Shape and Size
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Article)Limb amputation creates serious emotional and functional damage to the one who lost a limb. For some upper limb prosthesis users, comfort and appearance are among the desired features. The objective of this paper is to ... -
A method for broken bar fault diagnosis in three phase induction motor drive system using Artificial Neural Networks
( Taylor and Francis Ltd. , 2021 , Article)This paper presents a high accuracy detection of Broken Rotor Bar (BRB) fault by Artificial Neural Network (ANN) through advanced signal processing tool as Hilbert Transform (HT) where three phase Induction Motor Drives ... -
A method towards cerebral aneurysm detection in clinical settings
( Springer Verlag , 2019 , Conference Paper)Cerebral aneurysms are among most prevalent and devastating cerebrovascular diseases of adult population worldwide. The resulting sequelae of untimely/inadequate therapeutic intervention include sub-arachnoid hemorrhage. ... -
A Methodology for daylight optimisation of high-rise buildings in the dense urban district using overhang length and glazing type variables with surrogate modelling
( Institute of Physics Publishing , 2019 , Conference Paper)Urbanization and population growth lead to the construction of higher buildings in the 21st century. This causes an increment on energy consumption as the amount of constructed floor areas is rising steadily. Integrating ... -
A METHODOLOGY TO ASSES ENVIRONMENTAL SUSTAINABILITY OF EDUCATIONAL BUILDINGS IN QATAR WITH A CASE STUDY
(2024 , Dissertation)Addressing the urgent global call for sustainable solutions in the building sector, this study embarked on suggesting an approach to investigate the life cycle sustainability analysis of the school buildings in Qatar in ... -
A Micelle Fusion-Aggregation Assembly Approach to Mesoporous Carbon Materials with Rich Active Sites for Ultrasensitive Ammonia Sensing
( American Chemical Society , 2016 , Article)Nanostructured carbon materials have received considerable attention due to their special physicochemical properties. Herein, ordered mesoporous carbons (OMCs) with two-dimension (2D) hexagonal mesostructure and unique ... -
A Micro-Moment System for Domestic Energy Efficiency Analysis
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Domestic user behavior is a crucial factor guiding overall power consumption, necessitating the development of systems that analyze and help shape energy-efficient behavior. Therefore, the most important step in the process ... -
A microbial fuel cell configured for the remediation of recalcitrant pollutants in soil environment
( Royal Society of Chemistry , 2019 , Article)A pristine soil environment supports a healthy soil biodiversity, which is often polluted with recalcitrant compounds. The bioelectrochemical remediation of the contaminated soils using bioelectrochemical systems (BESs) ... -
A microfluidic pore model to study the migration of fine particles in single-phase and multi-phase flows in porous media
( Springer Verlag , 2018 , Article)Fine particles within porous media may migrate with the flowing fluid and cause bridging or clogging in the pore space. Bridging and clogging reduce the flow permeability of porous media, which has a significant influence ... -
A minorization-maximization algorithm for an-based mimome secrecy rate maximization
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)We consider the problem of secrecy rate maximization in a multi-input multi-output multi-eavesdropper (MIMOME) wiretap channel and present an exact solution. A general system model with a multi-antenna eavesdropper and a ... -
A Minorization-Maximization Algorithm for Maximizing the Secrecy Rate of the MIMOME Wiretap Channel
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)We consider physical layer security in a multi-input multi-output multi-eavesdropper wiretap channel and present an exact solution to the problem of secrecy rate maximization. A system model with multiple multi-antenna ... -
A mixed iron–manganese based pyrophosphate cathode, Na2Fe0.5Mn0.5P2O7, for rechargeable sodium ion batteries
( Royal Society of Chemistry , 2016 , Article)The development of secondary batteries based on abundant and cheap elements is vital. Among various alternatives to conventional lithium-ion batteries, sodium-ion batteries (SIBs) are promising due to the abundant resources ...