Search
Now showing items 1-10 of 36
Analysis of the Trajectories of Left-turning Vehicles at Signalized Intersections
(
Elsevier B.V.
, 2020 , Conference Paper)
Internationally, an annual number of more than a million fatalities are caused by road traffic crashes, with particularly signalized intersections being crash prone locations within the highway system. An accumulation of ...
Shear capacity of reinforced concrete deep beams using genetic algorithm
(
IOP Publishing Ltd
, 2020 , Conference Paper)
It is vital to understand the shear behaviour of reinforced concrete (RC) beams in order to avoid a catastrophic shear failure and design for ductile failure. However, due to the complexity in the shear failure mechanism ...
Queue Discharge at Freeway On-Ramps Using Coordinated Operation of a Ramp Meter and an Upstream Traffic Signal
(
Elsevier
, 2020 , Conference Paper)
Ramp metering is an effective way of maintaining optimum traffic conditions and mitigating congestion on freeways. Several strategies for ramp metering exist in the literature. They are typically based on the freeway traffic ...
Numerical study on the damping characteristics of a shock absorber valve utilizing different velocities through CFD analysis
(
National Technical University of Athens
, 2021 , Conference Paper)
Shock absorbers or hydraulic dampers are power dissipating devices. The fluid flow inside the damper is governed by predefined passages. The damping effect is accomplished by the resistance of oil to flow through the ...
Energy harvesting from railway vibrations - A numerical study based on beam-on-elastic-foundation under quasi-static loading
(
National Technical University of Athens
, 2021 , Conference Paper)
The objective of this paper is to investigate energy harvesting of train-induced rail
vibrations and to provide a comparison between various feasible harvesting locations based on
the expected electrical power output. ...
Dynamic 3D imaging of gas hydrate kinetics using synchrotron computed tomography
(
EDP Sciences
, 2020 , Conference Paper)
The availability of natural gas hydrates and the continuing increase in energy demand, motivated researchers to consider gas hydrates as a future source of energy. Fundamental understanding of hydrate dissociation kinetics ...
Accounting for the influence of the free surface on the vibration response of underground railway tunnels: A new iterative method
(
KU Leuven - Departement Werktuigkunde
, 2020 , Conference Paper)
This paper presents a new method for calculating the ground-borne vibration from shallow underground railways. The method is based on an iterative wave-scattering approach, which decouples the problem into two sub-systems: ...
Effect of Alkaline Activators on the Mechanical Properties of Geopolymer Mortar
(
Qatar Univesrity Press
, 2020 , Conference Paper)
"Geopolymerization is a process where silica and alumina rich source materials turn
into excellent binding materials by the aid of alkali solutions. Materials such as fly ash
are by-products in energy power plants. Fly ...
Evaluating the Operational Impact of Left-Turn Exclusive Number of Lanes: A Case Study from Qatar
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Left-turning movements can significantly reduce the overall capacity of signalized
intersections due to the queueing built up. Intersections with heavy left-turning volumes
tend to use multiple lanes to accommodate left-turn ...
Evaluation of Bond Strength Between Carbon Fiber Reinforced Polymer (CFRP) Composites with Modified Epoxy Resins and Concrete
(
Qatar Univesrity Press
, 2020 , Conference Paper)
Rehabilitation and strengthening of concrete structures are becoming more significant
in civil engineering applications. The use of externally bonded Fiber Reinforced
Polymers (FRP) is one of the methods to strengthen and ...