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Now showing items 951-960 of 1003
Teachers’ Experiences and Challenges with Student Diversity in Qatar’s Government Schools
(
Common Ground Research Networks
, 2021 , Article)
Globalization has changed the demographics of the Gulf Cooperation Countries (GCC) countries creating vastly diverse resident populations. Notably, Qatar has emerged as a multinational and multicultural nation. Qatar’s ...
Interactions between autonomous vehicles and pedestrians at unsignalized mid-block crosswalks considering occlusions by opposing vehicles
(
Elsevier Ltd
, 2021 , Article)
Visibility can be identified as one of the critical determinants for the safety performance of autonomous vehicles (AVs) on unsignalized mid-block crosswalks (UMC), which may be significantly influenced by build-up environment ...
A novel agent-based framework for evaluating pedestrian safety at unsignalized mid-block crosswalks
(
Elsevier Ltd
, 2021 , Article)
A critical safety problem in road networks is the conflicts on unsignalized crosswalks. Thus, a proactive approach to assess pedestrian safety performance is required. Simulating the microscopic road user behavior in a ...
Sensitive SO2 gas sensor utilizing Pt-doped graphene nanoribbon: First principles investigation
(
Elsevier Ltd
, 2021 , Article)
The objective of this work is to seek a highly sensitive gas sensor for the detection of sulfur dioxide (SO2) by investigating the impacts of passivation as well as metal doping of armchair-edge graphene nanoribbon (AGNR) ...
Vulnerabilities and countermeasures in electrical substations
(
Elsevier
, 2021 , Article)
The impending and continued threat of cyberattacks on modern utility grids has called for action from the different stakeholders of the electricity sector. This calls for a thorough investigation and review of the weaknesses ...
Effect of individually controlled personalized ventilation on cross-contamination due to respiratory activities
(
Elsevier
, 2021 , Article)
While personalized ventilation (PV) has been integrated to enhance inhaled air quality, some studies showed that it can contribute to contaminants' transport indoors. This work investigates the effect of the individual ...
The Effect of the Moroccan Salvadora Persica Extract on the Corrosion Behavior of the Ni-Cr Non-precious Dental Alloy in Artificial Saliva
(
Springer Science and Business Media Deutschland GmbH
, 2021 , Article)
To evaluate, for the first time, the effect of the Moroccan Miswak (Salvadora persica) extract on the corrosion behavior of Ni-Cr dental alloy in artificial saliva, the electrochemical techniques, such as Inductively Coupled ...
Analysis and optimization of concentrated solar power plant for application in arid climate
(
John Wiley and Sons Ltd
, 2021 , Article)
In this research study, the concentrated solar power (CSP) technology is reviewed for designing and optimizing a CSP tower plant for arid climate regions such as Qatar. A database for all CSP projects around the world is ...
A image encryption algorithm based on chaotic Lorenz system and novel primitive polynomial S-boxes
(
Springer
, 2021 , Article)
We have proposed a robust, secure and efficient image encryption algorithm based on chaotic maps and algebraic structure. Nowadays, the chaotic cryptosystems gained more attention due to their efficiency, the assurance of ...
Adaptive de Algorithm for Novel Energy Control Framework Based on Edge Computing in IIoT Applications
(
IEEE Computer Society
, 2021 , Article)
With the development of the industrial Internet of Things and the advancements in wireless sensor networking technologies, the smart grid based on edge computing now is regarded as being essential for real-time monitoring ...