Browsing Faculty of Engineering by Title
Now showing items 1938-1957 of 3117
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Optimal stiffness tuning for a lower body exoskeleton with spring-supported passive joints
(IEEE, 2018-10-09)This paper presents a framework to optimally tune the stiffness values of spring-supported passive joints that are included in lower body exoskeletons. First, a dynamic model of a combined human-exoskeleton system was ... -
Optimal survival strategy for branching Brownian motion in a Poissonian trap field
(Institut Henri Poincaré, 2019-11)We study a branching Brownian motion Z with a generic branching law, evolving in R-d, where a field of Poissonian traps is present. Each trap is a ball with constant radius. The traps are hard in the sense that the process ... -
Optimal vehicle-to-grid controller for energy arbitrage and frequency regulation markets
(IEEE, 2021)Vehicle-to-Grid (V2G) is a technology that is both beneficial for electric vehicle users and the sustainability of the world. Drivers plug their vehicles into the charging station and V2G technology provides bidirectional ... -
Optimization and analysis of WLAN RF energy harvesting system architecture
(IEEE, 2016)This paper presents the design, analysis and optimization of RF energy harvesting system for WLAN source operating at 2.4 GHz and 5.8 GHz. The system architecture comprises of RF WLAN source, wireless channel, an efficient ... -
Optimization by runtime specialization for sparse matrix-vector multiplication
(ACM, 2014)Runtime specialization optimizes programs based on partial information available only at run time. It is applicable when some input data is used repeatedly while other input data varies. This technique has the potential ... -
Optimization of ATM cash replenishment with group-demand forecasts
(Elsevier, 2015-05-01)In ATM cash replenishment banks want to use less resources (e.g., cash kept in ATMs, trucks for loading cash) for meeting fluctuated customer demands. Traditionally, forecasting procedures such as exponentially weighted ... -
Optimization of collection optics for maximum fidelity in entangled photon sources
(TÜBİTAK, 2020)In this report, decoherence sources for entangled photons created by spontaneous parametric down-conversion phenomenon are studied. The phase and spatial distinguishability of photon pairs from orthogonal crystals reduce ... -
Optimization of spectrally selective Si/SiO2 based filters for thermophotovoltaic devices
(Elsevier, 2017-08)Design of a spectrally selective filter based on one-dimensional Si/SiO2 layers is considered for improved performance of thermo-photovoltaic devices. Spectrally selective filters transmit only the convertible radiation ... -
Optimization of the intermediate layer friction stir spot welding process
(Springer Nature, 2019-09)Friction stir spot welding was performed for joining sheets of 2024 and 6061 aluminum alloys, which is otherwise difficult using conventional welding techniques. The presented approach utilizes an intermediate layer to ... -
Optimized process and tool design for gan chemical mechanical planarization
(The Electrochemical Society, 2017-10-04)In this paper, we present a systematic approach to the gallium nitride (GaN) chemical mechanical planarization (CMP) process through evaluating the effect of crystallographic orientation, slurry chemistry and process ... -
Optimizing complex sequence pattern extraction using caching
(IEEE, 2011)Complex Event Processing (CEP) has become increasingly important for tracking and monitoring complex event anomalies and trends in event streams emitted from business processes such as supply chain management to online ... -
Optimizing decomposition of software architecture for local recovery
(Springer Science+Business Media, 2013-06)The increasing size and complexity of software systems has led to an amplified number of potential failures and as such makes it harder to ensure software reliability. Since it is usually hard to prevent all the failures, ... -
Optimizing distributed generation sizing and siting using particle swarm optimization: A comparative study
(IEEE, 2023)In recent years, distributed generation (DG) has become increasingly popular as a means of mitigating the impact of climate change and ensuring a reliable and resilient power supply. To optimize the use of DG, it is essential ... -
Optimizing steering of roaming traffic with a-number billing under a rolling horizon policy
(Springer, 2020)In this study, we focus on single service steering international roaming traffic (SIRT) problem by considering telecommunication operators’ agreements and “a-number billing” while keeping service quality above a certain ... -
Optimum encoding approaches on video resolution changes: a comparative study
(IEEE, 2018)Video resolution changes in an HTTP adaptive streaming session may negatively affect the viewer's quality of experience. Our goal is, through encoding, to make such resolution changes less noticeable for the viewers. This ... -
Opto-electronic receiver system with post-equalization for visible light communications
(IEEE, 2020-10-05)In this work, A significant increase in the data rate is achieved by designing an opto-electronic receiver for the visible light communication system. LEDs used at the transmitter side in the visible light communication ... -
Orbital stability of periodic standing waves for the cubic fractional nonlinear Schrödinger equation
(Elsevier, 2022-12-25)In this paper, the existence and orbital stability of the periodic standing wave solutions for the nonlinear fractional Schrödinger (fNLS) equation with cubic nonlinearity is studied. The existence is determined by using ... -
ORTPiece: An ORT-based Turkish image captioning network based on transformers and WordPiece
(IEEE, 2023)Recent transformers-based systems are advancing image captioning applications. However, those works have been mainly applied to English-based image captioning problems. In this paper, we introduce a transformers-based ... -
Out-of-band analysis of GFDM systems based on different self-interference types
(IEEE, 2023)This paper studies the impact of out-of-band (OOB) emission and interferences on the generalized frequency division multiplexing (GFDM) systems. Specifically, we analyze the effects of two types of independent self-interference, ... -
Outage analysis of hybrid FSO/RF systems based on finite-state Markov Chain modeling
(IEEE, 2014)In this paper, we analyze the outage probability of a hybrid free-space optical/radio-frequency (FSO/RF) communication system with soft-switching. In soft-switching approach, either one of the links or both links can be ...
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