Browsing Civil and Environmental Engineering by Title
Now showing items 101-120 of 781
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Assessment of School Bus Assistant’s Safety Perspective in the State of Qatar
( Elsevier B.V. , 2022 , Conference Paper)School Bus Assistants (SBA) are appointed to bridge the communication gap between students and drivers, and to ensure the safety of students on the school buses. The purpose of this study is to assess the safety procedures ... -
Assessment of the taxi service in Doha
( Elsevier Ltd , 2016 , Article)This research focuses on passengers' satisfaction of the taxi service in Doha, Qatar. Qatar is a rich developing country where taxis are widely considered as a public transportation service due to the limited use of the ... -
Assessment of tire-pavement noise by using on-board sound intensity (Obsi) method in the state of qatar
( CRC Press/Balkema , 2017 , Conference Paper)Tire-pavement noise is the dominant source of traffic noise especially at medium and high speeds. Thus, various transportation agencies and researchers are actively investigating for establishment of accurate test methods ... -
Assessment of transient vibrations of graphene oxide reinforced plates under pulse loads using finite strip method
( Techno Press , 2020 , Article)Based on a refined shear deformation finite strip, transient vibrations of graphene oxide powder (GOP) reinforced plates due to external pulse loads have been investigated. The plate has uniformly and linearly distributed ... -
Automated Calibration of the EPA-SWMM Model for an Impact of Land Use and Land Cover Changes on Peak Discharge for a Sub-Urban Catchment of Delhi
( Qatar University Press , 2023 , Conference Paper)The Environmental Protection Agency's (EPA) Storm Water Management Model (SWMM), USA is a dynamic hydrologic-hydraulic model that simulates the amount and quality of runoff from urban areas. It is broadly used for planning, ... -
Automated defect detection tool for closed circuit television (cctv) inspected sewer pipelines
( Elsevier B.V. , 2018 , Article)In sewer networks, the economic effects and costs that result from a pipeline failure are rising sharply. As a result, there is huge demand for inspection and rehabilitation of sewer pipelines. In addition to being inaccurate, ... -
Automated detection of anomalies in sewer closed circuit television videos using proportional data modeling
( International Society for Trenchless Technology , 2016 , Conference Paper)Sewer pipeline condition information is usually collected using closed circuit television (CCTV). Moreover, in order to evaluate the condition of pipeline, data should be processed by a certified operator, which is time ... -
Autonomous vehicles between anticipation and apprehension: Investigations through safety and security perceptions
( Elsevier Ltd , 2021 , Article)Due to the ongoing enormous infrastructural developments and car ownership culture in Qatar, it could be one of those countries to introduce Autonomous Vehicles (AV) technology at the early stages. Therefore, this study ... -
Back-analysis of sprayed concrete lined (SCL) tunnel junctions at Liverpool Street Crossrail station
( Elsevier , 2023 , Article)Sprayed concrete linings (SCL) offer a versatile method of tunnel construction, particularly in regard to forming junctions since the lining acts as a shell structure which can redistribute the stresses around the opening ... -
Bearing Capacity and Settlement of Skirted Shallow Foundations on Sand
( American Society of Civil Engineers (ASCE) , 2013 , Article)The behavior of axially loaded skirted shallow foundations resting on sand was studied using an extensive numerical analysis. Surface, pier, and skirted square foundations resting on sand with different shear strength ... -
Behavior of artificially corroded RC beams strengthened with CFRP and hybrid CFRP-GFRP laminates
( Elsevier , 2022 , Article)Steel corrosion is a major degradation factor for the reinforced concrete (RC) infrastructure and necessitates a costly repair after short service life. Predicting the strength of corroded and retrofitted structural elements ... -
Behaviour of fibre reinforced concrete using steel slag coarse aggregate produced in Qatar
( EDP Sciences , 2017 , Conference Paper)The state of Qatar suffers from the shortage of natural resources needed for concrete production. Therefore, it is essential to investigate the feasibility of using by-product recycled materials as aggregates to maintain ... -
BIM-based facility management models for existing buildings
( Kuwait University , 2021 , Article)Building Information Modeling (BIM) is mainly used for the design and construction of new buildings. However, one of the main challenges facing BIM adoption for existing or old buildings constructed without consideration ... -
Bio-Based Self-Healing Concrete for Sustainable and Durable Concrete Infrastructure
( Qatar University Press , 2023 , Conference Paper)In this study, bio-self-healing concrete was manufactured using a natural phenomenon called microbial-induced calcium carbonate precipitation (MICP). The bacillus cereus bacteria isolated from Qatari soil was used for this ... -
Biocrude oil production from a self-settling marine cyanobacterium, Chroococcidiopsis sp., using a biorefinery approach
( Elsevier , 2023 , Article)Although the whole microalgal biomass is typically used as a feedstock for hydrothermal liquefaction (HTL), the conversion of a primary metabolite (i.e., carbohydrate) to biocrude is very low. In this study, a self-settling ... -
Biodegradation Kinetics of Benzene and Naphthalene in the Vadose and Saturated Zones of a (Semi)-Arid Saline Coastal Soil Environment
( Hindawi Limited , 2019 , Article)Biodegradation is a key process for the remediation of sites contaminated by petroleum hydrocarbons (PHCs), but this process is not well known for the (semi)-Arid coastal environments where saline conditions and continuous ... -
Bioinspired modeling and biogeography-based optimization of electrocoagulation parameters for enhanced heavy metal removal
( Elsevier , 2022 , Article)Electrocoagulation is an effective wastewater treatment process for the removal of heavy metals. This study focuses on deriving optimal conditions for removing heavy metals, viz. Lead (Pb), Cobalt (Co), and Manganese (Mn) ... -
Biological anodic oxidation and cathodic reduction reactions for improved bioelectrochemical treatment of petroleum refinery wastewater
( Elsevier , 2018 , Article)Bioelectrochemical systems (BESs) were evaluated for the bioelectrochemical treatment (BET) of petroleum refinery wastewater (PRW) by applying mild electrochemical potential in the range of 400-1000 mV on a single chamber ... -
Biolubricant Synthesis by Additization and Chemical Modification from Lipid-Rich Brackish Coelastrella sp. Using a Biorefinery Approach
( American Chemical Society , 2023 , Article)With a sizable market share and widespread use in automotive and industrial applications, biolubricants are produced from the oils of terrestrial plants that have undergone chemical modification or additive addition. ... -
Blind identification of the Millikan Library from earthquake data considering soil-structure interaction
( John Wiley & Sons, Ltd. , 2015 , Article)The Robert A. Millikan Library is a reinforced concrete building with a basement level and nine stories above the ground. Located on the campus of California Institute of Technology (Caltech) in Pasadena California, it is ...