Browsing College of Engineering by Title
Now showing items 1660-1679 of 7859
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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 ... -
Changing Dynamics of network security involving hacking/cracking with next generation firewalls (NGFW)
( IGI Global , 2016 , Book chapter)With increasing number of users on the internet, risk of security and probability of vulnerable attacks are increasing day by day. For every user connected to network, security attacks like hacking and cracking are very ... -
Channel assignment of microcellular mobile radio networks
( Institute of Electrical and Electronics Engineers Inc. , 2006 , Conference Paper)This paper addresses the analytical and simulation modeling of non overlapping microcells with both non-prioritized and prioritized handover schemes. The network performance is analyzed in terms of the analytical results ... -
Channel Aware and Queue Aware Scheduling in LTE Uplink
( SpringerLink , 2012 , Conference Paper)Long Term Evolution (LTE) uses single carrier frequency division multiple access (SCFDMA) technique as the multiple access scheme in the uplink, due to its low peak to average power ratio (PAPR) compared to orthogonal ... -
Channel Measurement and Resource Allocation Scheme for Dual-Band Airborne Access Networks
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)The aerial base stations (ABSs) can be quickly deployed to provide emergency communications and airborne network infrastructures. How to ensure wide coverage, reliable links, and high throughput for ground users under the ... -
Channel Modeling and Performance Analysis of Directional THz Links Under Pointing Errors and α-μ Distribution
( IEEE , 2023 , Article)This letter focuses on providing an analytical framework for the quantification and evaluation of high-directional terahertz communication links under pointing errors in terms of outage probability (OP), channel capacity, ... -
Channel modelling and performance analysis of V2I communication systems in blind bend scattering environments
( EMW Publishing , 2014 , Article)In this paper, we derive a new geometrical blind bend scattering model for vehicle-to- infrastructure (V2I) communications. The proposed model takes into account single-bounce and double- bounce scattering stemming from ... -
Channel secondary random process for robust secret key generation
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)The broadcast nature of wireless communications imposes the risk of information leakage to adversarial users or unauthorized receivers. Therefore, information security between intended users remains a challenging issue. ... -
Channel-, Queue-, and Delay-Aware Resource Allocation in Buffer-Aided Relay-Enhanced OFDMA Networks
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)Resource allocation is an important factor in providing different varieties of services in next-generation broadband wireless systems. In this paper, we consider dynamic routing and subchannel allocation for providing ... -
CHAPTER 4: Graphitic Carbon Nitride Nanostructures as Potent Catalysts for Water Splitting: Theoretical Insights
( Royal Society of Chemistry , 2021 , Book chapter)The water-splitting reaction is a highly promising green and sustainable energy source. However, finding effective catalysts for both water reduction and oxidation is an unnerving challenge. Graphitic carbon nitride (gCN) ... -
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 ... -
Characterisation of major fault detection features and techniques for the condition-based monitoring of high-speed centrifugal blowers
( International Institute of Acoustics and Vibrations , 2016 , Conference Paper)This paper investigates and characterises the major fault detection signal features and techniques for the diagnostics of rotating element bearings and air leakage faults in high-speed centrifugal blowers. The investigation ... -
Characterisation of multiphase fluid-structure interaction using non-intrusive optical techniques
(2011 , Article)The purpose of this study is to determine experimentally the effectiveness of passive drag reduction techniques (which involve adjusting surface geometry) within a chaotic multiphase flow system. To quantify the intrusion ... -
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 agent-based hierarchical diff-EDF schedulability over heterogeneous real-time Packet networks
( EuroJournals Publishing, Inc. , 2009 , Article)Packet networks are currently enabling the integration of heterogeneous traffic with a wide range of characteristics that extend from video traffic with stringent QoS requirements to best-effort traffic requiring no ... -
Characteristics of Intermetallic Compounds in Dissimilar Friction Stir Welding: A Review
( Springer New York LLC , 2019 , Article Review)In the present paper, mechanical and metallurgical characteristics of different dissimilar weldments fabricated by friction stir welding were investigated. Existence of lamellar composite structure within the stir zone in ... -
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 ...