Browsing University Publications by Title
Now showing items 780-799 of 4358
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Experimental And Modeling Of Friables And Stone Oil Reservoirs Consolidation Using Steel Making Slag
( Qatar University , 2001 , Article)A mathematical model was developed simulating the process of sand production in under downhole stress state. The model was derived based on Mohr-Colomb failure criterion, Darcy equation for radial flow and reservoir stress ... -
Experimental Investigation of Foam drilling fluid using Visualization Technique
( Qatar University Press , 2021 , Poster)Cutting transport is one of the major factors, which affects the cost, time and quality of drilling operations. Over the years, as the number of directional wells have increased to improve the productivity, it has been ... -
Experimental Investigation of Innovative Thermal Mechanical Refrigeration System
( Qatar University Press , 2021 , Poster)The current electrical refrigeration and air condition systems are considered as one of the major sources for ozone depletion and global warming problems. Furthermore, they consume a large percentage of the worldwide gross ... -
Experimental Investigation of the N-Pbs/P-Si Heterojunction Band Lineup with I-V and C-V Measurements
( Qatar University , 2005 , Article)In this paper we present experimental investigation of band lineup of near ideal PbS/Si heterojunction diode using I-V and C-V measurements. The C-V measurements show that the fabricated diodes were abrupt type, and the ... -
Experimental Investigation Of The Role Of Stabilizers In The Enhancement Of Automatic Voltage Regulators Performance
( Qatar University , 1991 , Article)In electrical power systems, dynamic stability problems may be solved through the application of power system stabilizers (PSS), which improve the performance of the main automatic voltage regulators (AVR's) of the synchronous ... -
Experimental Investigation on the Flexural Capacity of Reinforced Concrete Beams with Treated Wastewater and Recycled Concrete Aggregates
( Qatar University Press , 2023 , Conference Paper)Eco-friendly concrete is the most recommended sustainable option to reduce the excessive diminution of concrete natural resources and the high generation of greenhouse gas emissions. Therefore, the present study explores ... -
Experimental Investigations of Gas Kick for Single and Two-Phase Gas-liquid Flow in near Horizontal Wells
( Qatar University Press , 2021 , Poster)Multiphase flow in pipelines is of great importance and broadly used in several industries for various applications. A multiphase flow is a complex physical phenomenon where more than one phase occurs. In oil and gas ... -
Experimental Measurement Of Drop Phase Mass Transfer Coefficients For The Carbon Tetrachloride-Acetic Acid-Water System
( Qatar University , 1991 , Article)The overall mass transfer coefficients of single drops of carbon tetrachloride falling in a stagnant continuous phase of water containing acetic acid as solute were measured experimentally for different dispersed phase ... -
Experimental Study on the Performance of Circular Concrete Columns Reinforced with GFRP under Axial Load
( Qatar Univesrity Press , 2020 , Conference Paper)Corrosion of steel reinforcement in concrete structures subjected to severe environments is a big challenge and requires huge repair and maintenance costs. Glass fiber reinforced polymer (GFRP) reinforcement with its ... -
Experimental Validation of Repair Methods for Earthquake-Damaged Bridges Incorporating Pipe-Socket Precast Pier System
( Qatar University Press , 2023 , Conference Paper)This project focuses on the retrofitting of concrete bridge piers. In the first phase of the project, a half-scale bridge bent was designed and experimentally tested in the Idaho State University (ISU) Structural Lab (SLAB) ... -
Explicit Forms of Conservation Laws of a Class of Differential Equations
( Qatar University , 1994 , Article)Explicit forms of conservation laws of a class of nonlinear partial differential equations are derived; firstly from BScklund transformation and secondly from the. fundamental equations of the corresponding inverse method. -
Exploration of Carbonate Aggregates in Road Construction using Ultrasonic and Artificial Intelligence Approaches
( Qatar University Press , 2023 , Conference Paper)The COVID-19 pandemic has significantly impacted the construction sector, which is highly sensitive to economic cycles. In order to boost value and efficiency in this sector, the use of innovative exploration technologies ... -
Exploration of sleep quality and sleep hygiene among QU students
( Qatar University Press , 2020 , Poster)Sleep is an important component of healthy lifestyles. Worldwide reports suggest that one in every three adults suffers from insomnia. University students are vulnerable to insomnia due to their stressful lifestyle and ... -
An exploratory study of the complexity and consensus dimensions of stereotypes among Qatari and Bahraini University students
( Qatar University , 1983 , Article)The complexity and consensus dimensions of stereotypes held by 132 male and female university students from Qatar and Bahrain towards themselves and 11 other nationality groups were studied by using a modified Katz and ... -
Exploring Crowd Management and Evacuation Strategies using Microscopic Pedestrian Simulation: A Case Study of Souq Waqif
( Qatar University Press , 2023 , Conference Paper)Safe egress plans are critical for crowd evacuation at touristic attractions, particularly during special events, as visitors are often unaware of their options. Identification of bottlenecks in the walking spaces are vital ... -
Exploring QU health students' behavioral determinants, perspectives, and experiences toward student leadership: A quantitative study
( Qatar University Press , 2021 , Poster)Objective: Leadership is an essential part of student's learning experience in the college. The main aim of this study is to determine and explore QU health student's perspectives and experiences toward leadership. Methods: ... -
Exploring QU Health Students' Experiences of Burnout, Anxiety, and Empathy during the COVID-19 Pandemic: A Mixed Method Study
( Qatar University Press , 2021 , Poster)Background Students' mental health is a growing concern. COVID-19 pandemic resulted in academic and non-academic challenges which caused students' burnout, anxiety, and reduced empathy. Objectives The study objectives were ... -
An Extension of the Szasz-Mirakyan Operator on the Whole Real Axis
( Qatar University , 2000 , Article)The aim of this paper is to present a new extension of the Szasz-Mirakyan operator n the whole real axis, and to give its convergent approximation theorem. -
External Debt and Infrastructural Developments in Emerging Economies: Evidence from Nigeria, 1979-2019
( Qatar University Press , 2022 , Article)The Study examined External Debt and Infrastructural Developments in Emerging economies: Evidence from Nigeria, 1979 – 2019. The objective is to examine whether there is a nexus between external debt and infrastructural ... -
The extraction of positive and negative language transfer factors
( Qatar University , 1988 , Article)This study aims at exploring the possibility of extracting two language factors, i.e., negative and positive language transfer factors, by means of the statistical technique of factor analysis. One thousand five hundred ...