Browsing Qatar University Institutional Repository by Title
Now showing items 15811-15830 of 27858
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Optimal Transport for UAV D2D Distributed Learning: Example using Federated Learning
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)Federated Learning (FL) is a novel distributed learning paradigm in which local learning models are simultaneously trained using the stored data on multiple devices, then ultimately aggregated into a global model. A promising ... -
An optimal uplink traffic offloading algorithm via opportunistic communications based on machine learning
( Springer , 2020 , Article)Opportunistic communications as an efficient traffic offloading method can be used to offload uplink traffic of cellular networks to Wi-Fi networks. However, because of its contact pattern (contact frequency and contact ... -
Optimal User-Edge Assignment in Hierarchical Federated Learning Based on Statistical Properties and Network Topology Constraints
( IEEE Computer Society , 2022 , Article)Distributed learning algorithms aim to leverage distributed and diverse data stored at users' devices to learn a global phenomena by performing training amongst participating devices and periodically aggregating their local ... -
Optimal utilization of geothermal heat from abandoned oil wells for power generation
( Elsevier Ltd , 2019 , Article)Unlike other types of renewable energy, geothermal resources represent a stable energy source because they can be exploited regardless of meteorological conditions. In geothermal systems, heat is exchanged between the ... -
Optimal virtual network function placement in multi-cloud service function chaining architecture
( Elsevier B.V. , 2017 , Article)Service Function Chaining (SFC) is the problem of deploying various network service instances over geographically distributed data centers and providing inter-connectivity among them. The goal is to enable the network ... -
Optimal Water-Fertilizer Combinations for Efficient Nitrogen Fixation by Sugarcane at Different Stages of Growth
( MDPI , 2021 , Article)High fertilizer application and over-irrigation in sugarcane systems can cause considerable N2O emissions. Optimized water-fertilization management which reduces N2O emissions, while maintaining sugarcane biomass, is ... -
Optimisation of hybrid renewable energy system using iterative filter selection approach
( Institution of Engineering and Technology , 2017 , Article)This study presents a hybrid renewable energy system that yields minimum total project cost and maximum reliability. The system is in modular configuration consisting of photovoltaic (PV) array, wind turbine, battery ... -
Optimising small-scale electronic commerce supply chain operations: a dynamic cost-sharing contract approach
( Springer , 2022 , Article)For small-scale electronic commerce supply chains, designing effective strategies to improve operational effectiveness, market share and long-term survival are essential aspects. However, researchers have given less attention ... -
Optimising stop-bands in periodic waveguides using genetic algorithms and wave finite element method
( American Institute of Physics , 2024 , Conference Paper)In this paper, we propose using the wave finite element method and genetic algorithms to design periodic waveguide structures with optimal stop-bands. Instead of modelling waveguides using the standard finite element method, ... -
Optimization and Prediction of Mechanical and Thermal Properties of Graphene/LLDPE Nanocomposites by Using Artificial Neural Networks
( Hindawi Publishing Corporation , 2016 , Article)The focus of this work is to develop the knowledge of prediction of the physical and chemical properties of processed linear low density polyethylene (LLDPE)/graphene nanoplatelets composites. Composites made from LLDPE ... -
Optimization and Stabilization of P-Type BISBTE/GRAPHENE Nanocomposites for Efficient Thermoelectric Energy Conversion
(2020 , Master Thesis)The state-of-the-art Bismuth Antimony Telluride (BiSbTe) alloys have a promising potential to advance thermoelectric applications in energy harvesting for efficient power generation and active refrigeration. In this ... -
Optimization design of the CUSUM and EWMA charts for autocorrelated processes
( John Wiley and Sons Ltd , 2017 , Article)The traditional control charts produce frequent false alarm signals in the presence of autocorrelation. The implementation of the modified chart scheme is a way of handling the problem of autocorrelation in control charts. ... -
Optimization models for a single-plant District Cooling System
( Elsevier , 2015 , Article)A District Cooling System (DCS) is an interconnected system encompassing a centralized chiller plant, a Thermal Energy Storage (TES) unit, a piping network, and clusters of consumers' buildings. The main function of a DCS ... -
Optimization Models For Multiple Resource Planning
( Qatar University Press , 2021 , Poster)Multiple resource planning is a very crucial undertaking for most organizations. Apart from reducing operational complexity, multiple resource planning facilitates efficient allocation of resources, which reduces costs by ... -
Optimization Models for Multiple Resource Planning
(2021 , Master Thesis)Multiple resource planning is a very crucial undertaking for most organizations. Apart from reducing operational complexity, multiple resource planning facilitates efficient allocation of resources which reduces costs by ... -
Optimization models in emergency logistics: A literature review
( Elsevier , 2012 , Article Review)Optimization modeling has become a powerful tool to tackle emergency logistics problems since its first adoption in maritime disaster situations in the 1970s. Using techniques of content analysis, this paper reviews ... -
Optimization of 3D network topology for bioinspired design of stiff and lightweight bone-like structures
( Elsevier Ltd , 2021 , Article)A truly bioinspired approach to design optimization should follow the energetically favorable natural paradigm of ?minimum inventory with maximum diversity?. This study was inspired by constructive regression of trabecular ... -
Optimization of a combined approach for the treatment of carbide slurry and capture of CO2
( Science Publications , 2016 , Article)The aim of this study is to evaluate the potential use of electrocoagulation in the treatment of carbide slurry, a wastewater generated during the production of acetylene, and in the capture of carbon dioxide. An electrochemical ... -
Optimization of a Fuel Cost and Enrichment of Line Loadability for a Transmission System by Using Rapid Voltage Stability Index and Grey Wolf Algorithm Technique
( MDPI , 2022 , Article)Efficient transmission of power is a pressing concern in modern power systems as it could relieve additional investments (e.g., right of way) and may improve stability. Non-uniform loading of transmission lines (which ... -
Optimization of anaerobic co-digestion of fruit and vegetable waste with animal manure feedstocks using mixture design
( Springer , 2022 , Article)Optimization of anaerobic co-digestion of fruits and vegetable waste (FVW) with cow manure (CD) and poultry manure (PM) was studied by conducting biochemical methane potential (BMP) tests at different mixing ratios using ...