Browsing College of Engineering by Title
Now showing items 3176-3195 of 7793
-
Exact average OFDM subcarrier SINR analysis under joint transmit-receive I/Q imbalance
( IEEE , 2014 , Article)The subcarrier signal-to-interference-plus-noise ratio (SINR) expression for orthogonal frequency-division multiplexing (OFDM) systems impaired by in-phase/quadrature (I/Q) imbalance is a ratio of correlated random variables. ... -
Exact capture probability analysis of GSC receivers over Rayleigh fading channel
( IEEE , 2010 , Conference Paper)For third generation systems and ultrawideband systems, RAKE receivers have been introduced due to the advantage of RAKE receivers which is their ability to combine different replicas of the transmitted signal arriving at ... -
Exact closed form expressions for outage probability of GSC receivers over Rayleigh fading channel subject to self-interference
( IEEE , 2010 , Conference Paper)Previous work on performance analyses of generalized selection combining (GSC) RAKE receivers based on the signal to noise ratio focused on the development of methodologies to derive exact closed-form expressions for various ... -
Exact methods for the quay crane scheduling problem when tasks are modeled at the single container level
( Elsevier Ltd , 2018 , Article)The scheduling of quay cranes (QCs) to minimize the handling time of a berthed vessel is one of the most important operations in container terminals as it impacts the terminal's overall productivity. In this paper, we ... -
Exact SINR analysis of OFDM systems under joint Tx/RX I/Q imbalance
( IEEE , 2013 , Conference Paper)The direct-conversion architecture used for Orthogonal Frequency Division Multiplexing (OFDM) systems suffers from intercarrier interference (ICI) between image subcarriers in each OFDM symbol due to I/Q imbalance between ... -
Exact solution methods for a generalized assignment problem with location/allocation considerations
( INFORMS Inst.for Operations Res.and the Management Sciences , 2016 , Article)We investigate modeling approaches and exact solution methods for a generalized assignment problem with location/allocation (GAPLA) considerations. In contrast with classical generalized assignment problems, each knapsack ... -
Examining engineering students' perceptions of learner agency enactment in problem- and project-based learning using Q methodology
( John Wiley and Sons Inc , 2022 , Article)Background: Few studies have reported how students enact learner agency in a team setting or examined what elements of team settings students perceive as more supportive of their learning in problem- and project-based ... -
Exceptionally High CO2 Capturing Capacity of Porous Organic Polymers
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Pre-combustion flue gas capture has been emerged as an efficient alternative to circumvent the costly procedures of materials regeneration utilized by the energy industry for CO2 capture and separation. Stability of the ... -
Exome sequencing of glioblastoma-derived cancer stem cells reveals rare clinically relevant frameshift deletion in MLLT1 gene
( BioMed Central Ltd , 2022 , Article)Background: Glioblastoma multiforme (GBM) is a heterogeneous CNS neoplasm which causes significant morbidity and mortality. One reason for the poor prognostic outcome of GBM is attributed to the presence of cancer stem ... -
Exosomes: Multiple-targeted multifunctional biological nanoparticles in the diagnosis, drug delivery, and imaging of cancer cells
(2020 , Article)Exosomes are biological nanoparticles (30−150 nm) secreted in the extracellular area from all of cells, that mediate intercellular message. Exosomes act as the carriers for numerous proteins, DNAs, RNAs and cell-signaling ... -
Expatriates' Housing Dispersal Outlook in a Rapidly Developing Metropolis Based on Urban Growth Predicted Using a Machine Learning Algorithm
( Routledge , 2021 , Article)Housing dispersal in emerging cities should be investigated as it occurs to achieve a better understanding of future housing dispersal. In this study, housing preferences are analyzed in Doha Metropolitan Area based on ... -
Experiences with licensing by autistic drivers: An exploratory study
( Elsevier B.V. , 2022 , Article)Autistic individuals obtain their driver's licenses significantly less or significantly later than non-autistic peers. In the past, research has been done on what problems autistic individuals experience when (learning to) ... -
Experimental analysis of additively manufactured thin-walled heat-treated circular tubes with slits using AlSi10Mg alloy by quasi-static axial crushing test
( Elsevier Ltd , 2019 , Article)In this study, additively manufactured aluminum thin-walled tubes with different slit dimensions are proposed to improve energy absorption efficiency. A total of 18 samples, which varied in the number of slits, slit length, ... -
Experimental analysis of double and triple glazed facades with different shading devices in Qatar
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)The design of fully-glazed facades on buildings has become very popular, especially in hot regions where the use of natural ventilation is not recommended. The integration of shading devices to facade surfaces has been ... -
Experimental analysis of gravity and buoyancy powered energy generation storage systems
( Springer Science and Business Media Deutschland GmbH , 2021 , Conference Paper)The concept of harnessing energy from buoyancy as well as the ability to have underwater energy storage is an area of research that, compared to other renewable energy generation techniques, is relatively unexplored. This ... -
Experimental and analytical study on strengthening of reinforced concrete T-beams in shear using steel reinforced grout (SRG)
( Elsevier Ltd , 2019 , Article)The use of steel reinforced grout (SRG) has emerged as a promising technique for the strengthening and retrofitting of reinforced concrete (RC) structures, however, the experimental evidence on its application for ... -
Experimental and DFT Approach on the Determination of Natural Gas Hydrate Equilibrium with the Use of Excess N2 and Choline Chloride Ionic Liquid as an Inhibitor
( American Chemical Society , 2016 , Article)This work presents the characterization of hydrate-forming conditions of a Qatari natural gas-type mixture, QNG-S1, obtained using two different experimental methods, namely, a benchtop reactor and a gas hydrate autoclave. ... -
Experimental and numerical investigation of damping in a hybrid automotive damper combining viscous and multiple-impact mechanisms
( SAGE , 2022 , Article)One of the least investigated approaches in passive vibration control is the possibility of combining different types of dampers that use different damping principles. Such a combination process, if wisely designed and ... -
An experimental and numerical investigation of the effects of the diaphragm pressure ratio and its position on a heated shock tube performance
( Wiley-Blackwell , 2022 , Article)The main purpose of this work was to investigate the performance of heated shock tube (ST) with different pressure ratios and diaphragm positions numerically and experimentally. The numerical model was developed to simulate ... -
Experimental and numerical investigations on axial crushing of square cross-sections tube with vertical wave
( Techno-Press , 2020 , Article)In this paper, wavy square absorbers were experimentally and numerically investigated. Numerical simulations were performed with LS-Dyna software on 36 wavy absorbers and their crushing properties were extracted and compared ...