Faculty of Engineering: Recent submissions
Now showing items 821-840 of 3117
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Formalization of occupant feedback and integration with BIM in office buildings
(ASCE, 2021-01-01)Occupant feedback is not effectively used in the facility management (FM) phase for operations and maintenance activities as well as retrofit and refurbishment investment decisions. One of the reasons is related to incomplete ... -
Aid allocation for camp-based and urban refugees with uncertain demand and replenishments
(Wiley, 2021-12)There are 26 million refugees worldwide seeking safety from persecution, violence, conflict, and human rights violations. Camp-based refugees are those that seek shelter in refugee camps, whereas urban refugees inhabit ... -
HC-FFT: Highly configurable and efficient FFT implementation on FPGA
(TÜBİTAK, 2021)FFT is one of the basic building blocks in many applications such as sensors, radars, communications. For some applications, e.g., real-time spectral monitoring and analysis, FFT needs to be”run-time configurable” so that ... -
Experimental characterization of multi-hop vehicular VLC systems
(IEEE, 2021)In vehicular visible light communication (VLC), the reliable communication distance may be relatively short due to its dependence on many factors including the weather condition. This necessitates the use of relay-assisted ... -
On the fatigue and fracture behavior of keyhole-free friction stir spot welded joints in an aluminum alloy
(Elsevier, 2021-03)The target of this research study was to evaluate the shear-tensile and fatigue behavior of aluminum 6061 alloy welds, in two different heat treatment conditions, joined by the recently developed intermediate layer friction ... -
Analysis of offshore wind turbine by considering soil-pile-structure interaction: effects of foundation and sea-wave properties
(Taylor & Francis, 2022)Prediction of the dynamic performance of an offshore wind turbine (OWT) requires consideration of many different design parameters. Besides the superstructure, the OWT foundation also plays an important role both functionally ... -
Electrochemical determination of ceftriaxone using polyurethane-modified electrode containing caffeic acid and chitosan
(Taylor & Francis, 2022-04-13)The aim of this work was to develop an electrochemical sensor based on caffeic acid and chitosan-containing polyurethane (CAC-PU) films modified platinum electrode for ceftriaxone (CFX) determination. For this aim, firstly ... -
Effect of fuel choice on conductivity and morphological properties of samarium doped ceria electrolytes for IT-SOFC
(TÜBİTAK, 2021)The present investigation is emphasized on the effect of various combustion agents on the crystal properties, surface microstructure, and oxygen ion conductivity of 20% mole-Sm doped ceria (Ce0.80Sm0.20O1.90/SDC20) ceramics ... -
Recent advances in simulating gas permeation through MOF membranes
(Royal Society Publishing, 2021-08-21)In the last two decades, metal organic frameworks (MOFs) have gained increasing attention in membrane-based gas separations due to their tunable structural properties. Computational methods play a critical role in providing ... -
Distributed MIMO for Li-Fi: Channel measurements, ray tracing and throughput analysis
(IEEE, 2021-08-15)LiFi has been considered as a promising candidate for future wireless indoor networks. The IEEE P802.15.13 and P802.11bb standardization groups agreed upon channel models generated using the non-sequential ray tracing ... -
A fluid approximation for the single-leg fare allocation problem with nonhomogeneous poisson demand
(Springer, 2022-02-27)Fare allocation for legs and O&D pairs plays a crucial role in airline revenue management. Despite a large number of dynamic pricing studies, there are only a few widely adopted studies in which assumptions affect most ... -
Campaign participation prediction with deep learning
(Elsevier, 2021-08)Increasingly, on-demand nature of customer interactions put pressure on companies to build real-time campaign management systems. Instead of having managers to decide on the campaign rules, such as, when, how and whom to ... -
Curriculum learning for face recognition
(IEEE, 2021)We present a novel curriculum learning (CL) algorithm for face recognition using convolutional neural networks. Curriculum learning is inspired by the fact that humans learn better, when the presented information is organized ... -
Immobilization of bacterial cells on natural minerals for self-healing cement-based materials
(Frontiers Media, 2021-04-13)Recent research in the field of concrete materials showed that it might be possible to develop a smart cement-based material that is capable of remediating cracks by Microbial-induced calcium carbonate precipitation (MICP). ... -
Coverage analysis of downlink MU-MIMO cellular networks
(IEEE, 2021-09)In this letter, we analyze the coverage performance of multi-user multiple-input multiple-output (MU-MIMO) downlink cellular networks. We model the locations of the base stations and mobile users using Poisson Point Processes ... -
An efficient design methodology for graded surface-based lattice structures using free-size optimization and enhanced mapping method
(Elsevier, 2021-11-15)In this paper, a novel Free-size Optimization based Graded Lattice Generation (FOGLG) method, that generates the functionally graded lattice (FGL) structures using free-size optimization, is proposed. In addition, the ... -
Dropout regularization in hierarchical mixture of experts
(Elsevier, 2021-01-02)Dropout is a very effective method in preventing overfitting and has become the go-to regularizer for multi-layer neural networks in recent years. Hierarchical mixture of experts is a hierarchically gated model that defines ... -
The variational method, backreactions, and the absorption probability in Wald type problems
(Springer, 2021-01-19)We argue that the variational method in Wald type thought experiments, involves order of magnitude problems when one imposes the fact that δM is inherently a first order quantity itself. One observes that the contribution ... -
Hardness and wear resistance of roller burnished 316L stainless steel
(Elsevier, 2021)This study investigates the effects of roller burnishing on the microstructure, surface microhardness, and wear resistance of 316L stainless steel. Experimental design based on the Taguchi orthogonal array was employed to ... -
Thermal and optical characterization of white and blue multi-chip LED light engines
(IEEE, 2021)A clear understanding of thermal characteristics for light emitting diodes (LEDs) is at the center of attention for lighting industry. Especially accurate evaluation of the junction temperature of various light engines is ...
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