Browsing Civil and Environmental Engineering by Title
Now showing items 135-154 of 778
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Calculating the response of waveguides to base excitation using the wave and finite element method
( SAGE , 2021 , Article)The prediction of the response of waveguides to time-harmonic base excitations has many applications in mechanical, aerospace and civil engineering. The response to base excitations can be obtained analytically for simple ... -
Can automated driving prevent crashes with distracted Pedestrians? An exploration of motion planning at unsignalized Mid-block crosswalks
( Elsevier , 2022 , Article)Pedestrian distraction may provoke severe difficulties in automated vehicle (AV) control, which may significantly affect the safety performance of AVs, especially at unsignalized mid-block crosswalks (UMCs). However, there ... -
Cantilever Beam Metastructure for Passive Broadband Vibration Suppression
( Qatar Univesrity Press , 2020 , Conference Paper)This paper presents a beam structure of a new metamaterial-inspired dynamic vibration attenuation system. The proposed experimental research presents a designed cantilevered zigzag structure that can have natural frequency ... -
Carbon nanotube effect on the ductility, flexural strength, and permeability of concrete
( Hindawi Limited , 2019 , Article)Recently, remarkable types of carbon nanofilaments called carbon nanotubes (CNTs) have raised the interest of many concrete and cementitious composite researchers due to their significant mechanical, electrical, thermal, ... -
Causes of construction change orders in Qatar: Contractors' perspective
( Inderscience Publishers , 2016 , Article)The construction industry involves complex processes which are prone to various changes and variations. However, it may be argued that the application of change orders within construction projects in the State of Qatar has ... -
Challenges and Mitigation of Cyber Threat in Automated Vehicle: An Integrated Approach
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)The technological development of automated vehicles opens novel cybersecurity threats and risks for road safety. Increased connectivity often results in increased risks of a cyber-security attacks, which is one of the ... -
Changes of perceived unevenness caused by in-track vibration countermeasures in slab track
( Elsevier Ltd , 2017 , Article)This paper investigates the relation between unevenness at different locations in a railway track and the unevenness perceived by a train, for the particular case of a slab track. The different types of unevenness considered ... -
Characterisation of air voids in w-fam samples using x-ray ct imaging
( CRC Press/Balkema , 2018 , Conference Paper)This study documents the use of high-resolution X-Ray Computed Tomography to characterise air void distribution in Fine Aggregate Mixtures (FAM) prepared using Warm Mix Asphalt (WMA) additives (W-FAM). Specimens were imaged ... -
Characterisation of air voids in w-fam samples using x-ray ct imaging
( CRC Press/Balkema , 2018 , Conference Paper)This study documents the use of high-resolution X-Ray Computed Tomography to characterise air void distribution in Fine Aggregate Mixtures (FAM) prepared using Warm Mix Asphalt (WMA) additives (W-FAM). Specimens were imaged ... -
Characterisation of fatigue resistance of alternative pavement design for the state of Qatar
( Taylor and Francis - Balkema , 2014 , Conference Paper)Asphalt mixtures have been designed in the past in the State of Qatar to safeguard against permanent deformation associated with high temperatures. These mixtures are typically designed to have low content of unmodified ... -
Characteristics and mitigation strategies for cell phone use while driving among young drivers in Qatar
( Elsevier Ltd , 2018 , Article)There is no doubt that cell phone use while driving can lead to a higher probability of driver error, which increases the likelihood of more crashes. In Qatar, the high rate of cell phone use while driving among young ... -
Characteristics of Concrete Made with Treated Domestic Wastewater
( Springer Science and Business Media Deutschland GmbH , 2022 , Conference Paper)The dramatic increase in the worldwide production of concrete and its consequences in depleting freshwater resources has become an urgent challenge among researchers. Many countries use the desalination treatment method ... -
Characteristics of olive mill solid residue and its application in remediation of Pb2+, Cu2+ and Ni2+ from aqueous solution: Mechanistic study
( Elsevier , 2014 , Article)This study investigated the use of untreated olive mill solid residues (OMSR) as a solid extractant for Pb2+, Cu2+ and Ni2+ ions from aqueous solution. It was shown that the solution initial pH value affected the metal ... -
Characteristics, benefits, challenges, and socio-cultural factors of implementing pbl in qatar
( Aalborg University , 2020 , Conference Paper)While project-and/or problem-based learning has been implemented in higher education worldwide for several decades, both modes of PBL remain a new phenomenon in Qatar. Over the past few years, several research projects ... -
Characterization and application of FRCM as a strengthening material for shear-critical RC beams
( EDP Sciences , 2018 , Conference Paper)This paper investigates the effectiveness of fabric reinforced cementitious matrix (FRCM) systems in shear-strengthening of reinforced concrete beams. Three types of FRCM systems were considered, namely, polyparaphenylene ... -
Characterization of Cellobiohydrolases from Schizophyllum commune KMJ820
( Springer , 2019 , Article)A novel cellobiohydrolase (CBH)-generating fungi have been isolated and categorized as Schizophyllum commune KMJ820 based on morphology and rDNA gene sequence. Cellulose powder was used as carbon source, the total enzyme ... -
Characterization of lightly stabilized granular base materials using monotonic and cyclic load flexural testing
( American Society of Civil Engineers (ASCE) , 2016 , Article)Lightly cementitiously stabilized granular materials are generally characterized by their tensile properties and this paper examines the use of monotonic and cyclic load flexural testing to determine the tensile characteristics ... -
Characterization of tbm muck for construction applications
( MDPI , 2021 , Article)This paper investigates the potential utilization of the Tunnel Boring Machine (TBM) muck generated from Doha's Metro Gold Line in different construction applications. The properties of the raw TBM muck were studied, and ... -
Circular economy application for a Green Stadium construction towards sustainable FIFA world cup Qatar 2022™
( Elsevier , 2021 , Article)The construction industry is responsible for a significant amount of raw material consumption and environmental footprints. Therefore, sustainable construction became a hot topic, which strives to reduce material consumption, ... -
Classification tree analysis of factors affecting parking choices in Qatar
( Elsevier Ltd , 2015 , Article)Qatar has experienced a significant population growth in the past decade. The growth has been accompanied by an increase in automobile ownership rates leading to parking problems especially in the capital city of Doha. The ...