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السجلات المعروضة 7875 -- 7894 من 25697
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An Enhanced Multi-Phase Stochastic Differential Evolution Framework for Numerical Optimization
( Institute of Electrical and Electronics Engineers Inc. , 2022 , Conference Paper)Real-life problems can be expressed as optimization problems. These problems pose a challenge for researchers to design efficient algorithms that are capable of finding optimal solutions with the least budget. Stochastic ... -
Enhanced oil recovery using hyperbranched polyglycerol polymer-coated silica nanoparticles
( Elsevier Ltd , 2021 , Article)Functionalized Fe3O4?SiO2 magnetic nanoparticles (Fe?Si-MNPs) coated with hyperbranched polyglycerol polymer were prepared and tested for oil recovery from oil in water (O/W) emulsions. The structure, chemistry, and surface ... -
Enhanced performance of nano-sized SiC reinforced Al metal matrix nanocomposites synthesized through microwave sintering and hot extrusion techniques
( Elsevier B.V. , 2017 , Article)In the present study, nano-sized SiC (0, 0.3, 0.5, 1.0 and 1.5 vol%) reinforced aluminum (Al) metal matrix composites were fabricated by microwave sintering and hot extrusion techniques. The structural (XRD, SEM), mechanical ... -
Enhanced Performance of Oxygen-Functionalized Multiwalled Carbon Nanotubes as Support for Pt and Pt-Ru Bimetallic Catalysts for Methanol Electrooxidation
( American Chemical Society , 2020 , Article)The performance of Pt-Ru catalysts for methanol electrooxidation has been greatly enhanced by replacing the standard carbon XC72 support with oxygen-functionalized multiwalled carbon nanotubes (MWCNTs). Highly dispersed, ... -
Enhanced photo-Fenton degradation of Rhodamine B using iodine-doped iron tungstate nanocomposite under sunlight
( Springer , 2022 , Article)In the present research work, iodine-doped iron tungstate has been reported for first time as an active photo-Fenton heterogeneous catalyst for wastewater treatment. In Fenton-like process, the catalytic efficiency of FeWO4 ... -
Enhanced Photocatalytic Activity of a Molybdate-Intercalated Iron-Based Layered Double Hydroxide
( Wiley-VCH Verlag , 2017 , Article)Herein, we report the design and successful fabrication of new Mg/Fe layered double hydroxides (LDHs) with different Mg/Fe molar ratios (2:1, 3:1, and 4:1) by a coprecipitation method. The prepared Mg/Fe (4:1) LDH sample ... -
Enhanced photocatalytic degradation of a phenolic compounds' mixture using a highly efficient TiO2/reduced graphene oxide nanocomposite
( Springer New York LLC , 2016 , Article)A nanocomposite (namely rGOTi) was prepared by loading 0.33 weight percent of reduced graphene oxide (rGO) on commercial TiO2 nanoparticles using a hydrothermal method. The as-prepared nanocomposite was characterized using ... -
Enhanced photocatalytic performance of WON@porous TiO2 nanofibers towards sunlight-assisted degradation of organic contaminants
( Royal Society of Chemistry , 2018 , Article)In the last few decades, TiO2 has been widely used in different types of photocatalytic applications. However, the relatively large optical band gap (∼3.2 eV), low charge carrier mobility and consequently its low quantum ... -
Enhanced photovoltaic performance of dye-sensitized solar cells using TiO2-graphene microplatelets hybrid photoanode
( IEEE Electron Devices Society , 2016 , Article)Hybrid photoanodes for dye-sensitized solar cells (DSSCs) were prepared by simple addition of graphene (GR) microplatelets to TiO 2 nanoparticulate paste. Transmission electron microscopy was used to confirm the presence ... -
Enhanced photovoltaic performance with co-sensitization of a ruthenium(ii) sensitizer and an organic dye in dye-sensitized solar cells
( Royal Society of Chemistry , 2016 , Article)Co-sensitization is demonstrated to be an effective technique to enhance the efficiency of dye-sensitized solar cells, where an efficiency of 9.23% is achieved by mixing N3 and RK-1 dyes. The assembled solar cells are ... -
Enhanced power extraction from thermoelectric generators considering non-uniform heat distribution
( Elsevier Ltd , 2021 , Article)In this paper, a technique to enhance the performances of the thermoelectric generator under non-uniform heat distribution is developed. A large area of heat source is needed when the thermoelectric generator is used for ... -
Enhanced production of anthraquinones by gamma-irradiated cell cultures of Rubia cordifolia in a bioreactor
( Elsevier , 2019 , Article)The aim of this study was to obtain high-yielding cell cultures of Rubia cordifolia by applying gamma irradiation and subsequently scaling up for anthraquinone production in a bioreactor. Calli cultured on MS medium was ... -
Enhanced quality factor of polyvinyl formal (PVF) based nanocomposites filled with zinc oxide and carbon black nanoparticles for wireless sensing applications
( Elsevier Ltd , 2019 , Conference Paper)The present article deals with the preparation of polyvinyl formal based nanocomposites filled with zinc oxide (ZnO) and carbon black nanoparticles using colloidal blending technique. To explore the electrical and structural ... -
Enhanced redirected walking algorithm
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)The redirected walking algorithm (RDW) is a locomotion technique that gives the user the perception of walking in larger or infinite virtual environment (VE) within small and limited tracking area. The available approaches ... -
Enhanced remediation of Cr6+ in bacterial-assisted floating wetlands
( Blackwell Publishing Ltd , 2020 , Article)Hexavalent chromium (Cr6+) is reported to have negative effects on fauna and flora. The present study establishes plant-bacterial synergism in floating wetlands (FWs) for the maximum removal of Cr6+ from the contaminated ... -
Enhanced Removal of Diesel Oil Using New Magnetic Bentonite-Based Adsorbents Combined with Different Carbon Sources
( Springer Science and Business Media Deutschland GmbH , 2022 , Article)In this work, new magnetic bentonite-based adsorbents combined with different carbon sources, namely, reduced graphene oxide and multiwall carbon nanotubes, were synthesized via co-precipitation method. The synthesized ... -
Enhanced simulated-annealing-based algorithms and their applications to process planning in reconfigurable manufacturing systems
( Elsevier, Ltd , 2012 , Article)Capabilities of enhanced simulated-annealing-based algorithms in solving process planning problems in reconfigurable manufacturing are investigated. The algorithms are enhanced by combining variants of the simulated annealing ... -
Enhanced Size Selection in Two-Photon Excitation for CsPbBr3 Perovskite Nanocrystals
( American Chemical Society , 2017 , Article)Cesium lead bromide (CsPbBr3) perovskite nanocrystals (NCs), with large two-photon absorption (TPA) cross-section and bright photoluminescence (PL), have been demonstrated as stable two-photon-pumped lasing medium. With ... -
Enhanced tensile strength, fracture toughness and piezoresistive performances of CNT based epoxy nanocomposites using toroidal stirring assisted ultra-sonication
( Taylor & Francis , 2021 , Article)The importance of proper CNT dispersion is still the main challenge in CNTs doped epoxy nanocomposites. Therefore, this study was aimed to investigate the effect of toroidal stirring-assisted sonication on final mechanical, ... -
Enhanced Thermal Performance of Mosques in Qatar
( Institute of Physics Publishing , 2017 , Conference Paper)Qatar has an abundance of mosques that significantly contribute to the increasing energy consumption in the country. Little attention has been given to providing mitigation methods that limit the energy demands of mosques ...
