Showing 221 - 240 results of 243 for search '"alumina"', query time: 0.06s Refine Results
  1. 221

    Enhanced CO2 Capture Performance Using Methyl Diethanolamine-functionalized Silica Gels: Assessing CO2 Capture Capacity by Petpitcha Boonmatoon, Pacharapol Nokpho, Pornpote Piumsomboon, Benjapon Chalermsinsuwan

    Published 2025-01-01
    “…There are many potential solid adsorbents for CO2 capture, such as zeolites, alumina, metal‒organic frameworks (MOFs), and mesoporous silicas. …”
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    Article
  2. 222

    Partial Replacement of Cement with Sugarcane Waste Ash in Cement Concrete. by Muhindo, Martin

    Published 2023
    “…The combined percentage of silica, alumina, and Iron Oxide in the ash was 84.75% which is more than the 70%wt as stated in the ASTM C618 hence meeting the specifications. …”
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    Thesis
  3. 223

    Thermally radiative water-based hybrid nanofluid with nanoparticles and gyrotactic microorganisms past a stretching surface with convective conditions and porous media by Humaira Yasmin, Rawan Bossly, Fuad S. Alduais, Afrah Al-Bossly, Anwar Saeed

    Published 2025-01-01
    “…Therefore, in this analysis, we have examined the flow of a water-based hybrid nanofluid containing copper (Cu) and alumina (Al2O3) nanoparticles along with gyrotactic microorganisms on an elongated sheet. …”
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    Article
  4. 224

    Prediction of the cutting tool wear during dry hard turning of AISI D2 steel by using models based on Learning process and GA polyfit by Khaled Djellouli, Kamel Haddouche, Mostefa Belarbi, Zoubir Aich

    Published 2023-12-01
    “… In this paper, we are interested in the prediction of flank wear through dry hard turning of AISI D2 steel with a mixed alumina insert. In the machining process, the cutting tool is principally affected by two kinds of wear: flank and crater wear. …”
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    Article
  5. 225

    Thermal Convective Instabilities and Chaos in a Rotating Hybrid Nanofluid Layer with Cattaneo–Christov Heat Flux Model by Sèmako Justin Dèdèwanou, Adjimon Vincent Monwanou, Aimé Audran Koukpémèdji, Amoussou Laurent Hinvi, Clément Hodévèwan Miwadinou, Jean Bio Chabi Orou

    Published 2022-01-01
    “…The different results showed that the addition of hybrid nanoparticles (alumina-copper) to a thermal fluid (water) subjected to the rotation force in the presence or absence of the thermal relaxation time allows control of the chaotic convection in the base fluid. …”
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    Article
  6. 226

    High performance synthetic fiber-reinforced concrete mixed with nanoparticles: A proof-of-concept green railway sleeper product by Radhika Sridhar, Satjapan Leelatanon, Monthian Setkit, Thanongsak Imjai, Elhem Ghorbel, Boksun Kim

    Published 2025-03-01
    “…In the Phase 1, the main objective is to evaluate the effectiveness of nanoparticles, such as nano alumina (NA) and nano silica (NS), at 1%, 3%, and 5% additions, along with rice husk ash (RHA) and ground granulated blast furnace slag (GGBFS) in terms of strength and durability performance. …”
    Article
  7. 227

    ANALYSIS OF SURFACE DEFECTS OF ALUMINUM AND ITS ALLOYS WITH A SCANNING KELVIN PROBE by A. K. Tyavlovsky, A. L. Zharin, O. K. Gusev, R. I. Varabei, N. I. Muhurov, G. V. Sharonov, K. U. Pantsialeyeu

    Published 2017-02-01
    “…An additional study was held for AMG-2 surface after the formation of 30 microns thick specific nanostructured alumina oxide surface layer. Higher quality surfaces have characterized as more homogeneous distribution of the physical properties (at half-width distribution histogram). …”
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    Article
  8. 228

    Chemical Separation on Silver Nanorods Surface Monitored by TOF-SIMS by Ondrej Petruš, Andrej Oriňak, Renáta Oriňaková, Christian Muhmann, Ján Macko, Radim Hrdý, Jaromír Hubálek, Branislav Erdelyi, Heinrich F. Arlinghaus

    Published 2017-01-01
    “…A silver nanorods surface has been prepared by controlled electrochemical deposition in anodic alumina oxide (AAO) template. Rhodamine 6G and 4-aminothiophenol have been directly applied to the sampling point on a silver nanorods surface in an aliquot mixture. …”
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    Article
  9. 229

    Hydraulic Performance Modifications of a Zeolite Membrane after an Alkaline Treatment: Contribution of Polar and Apolar Surface Tension Components by Patrick Dutournié, Ali Said, T. Jean Daou, Jacques Bikaï, Lionel Limousy

    Published 2015-01-01
    “…Contact angle measurements are carried out (with three polar liquids) on Na-mordenite films seeded onto alumina plates (flat membranes). A decrease of the contact angles is observed after the alkaline treatment for the three liquids. …”
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    Article
  10. 230

    Concurrent Extraction and Analysis of Atmospheric Particulate Matter-bound PBDEs, PAHs, Nitrated PAHs, and OPEs by Hsin-Chieh Kung, Bo-Wun Huang, Chien-Er Huang, Nicholas Kiprotich Cheruiyot, Guo-Ping Chang-Chien

    Published 2023-12-01
    “…After a series of cleanup and fractionation steps involving silica gel and alumina columns, PBDEs were analyzed using high-resolution gas chromatography-high-resolution mass spectrometry (HRGC-HRMS), while PAHs, N-PAHs, and OPEs were analyzed using GC-MS/MS. …”
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    Article
  11. 231

    Sulfur Fixation by Chemically Modified Red Mud Samples Containing Inorganic Additives: A Parametric Study by Yang Liu, Yang Li, Feng-shan Zhou, Ying-mo Hu, Yi-he Zhang

    Published 2016-01-01
    “…Sulfur retention ability of Bayer red mud from alumina plant was investigated. Bayer red mud modified by fusel salt and waste mother liquor of sodium ferrocyanide as the main sulfur fixation agent and the calcium based natural mineral materials as servicing additives; the experimental results showed the following: (1) Through 10 wt% waste mother liquor of sodium ferrocyanide modifying Bayer red mud, sulfur fixation rate can increase by 13 wt%. (2) Magnesium oxide can obviously improve the sulfur fixation performance of Bayer red mud and up to a maximum sulfur fixation rate of 47 wt% at adding 1 wt% magnesium oxide. (3) Dolomite enhanced the sulfur fixation performances with the sulfur fixation rate of 68 wt% in optimized condition. (4) Vermiculite dust reduced sulfur dioxide during the fixed-sulfur process of modified Bayer red mud, and the desulphurization ration could reach up to a maximum 76 wt% at 950°C. (5) An advanced three-component sulfur fixation agent was investigated, in which the optimized mass ratio of modified Bayer red mud, dolomite, and vermiculite dust was 70 : 28 : 2 in order, and its sulfur fixation efficiency has reached to a maximum 87 wt% under its 20 wt% dosage in the coal.…”
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    Article
  12. 232

    Compressive strength prediction models for concrete containing nano materials and exposed to elevated temperatures by Hany A. Dahish, Ahmed D. Almutairi

    Published 2025-03-01
    “…In the present study, two machine learning algorithms, random forest (RF) and M5P decision tree, and linear regression were used for developing prediction models for the compressive strength (CS) of concrete containing nano alumina (NA) and carbon nanotubes (CNT) and being subjected to elevated temperatures. …”
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    Article
  13. 233

    Optimal Suppression of Photocatalytic Activity of Hybrid TiO2 Particles in Epoxy Thin Film by Using Taguchi Method by Sunderishwary S. Muniandy, Tan Sek Soon, Swee Yong Pung, Sivakumar Ramakrishnan

    Published 2024-10-01
    “…In this study, two different Al2O3-TiO2 and SiO2-TiO2 hybrid TiO2 particles were synthesised by using silica (SiO2) and alumina (Al2O3) to suppress the photocatalysis of TiO2. …”
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    Article
  14. 234

    The Use of Le Bail Method to Analyze the Semicrystalline Pattern of a Nanocomposite Based on Polyaniline Emeraldine-Salt Form and α-Al2O3 by Edgar A. Sanches, Adriano de S. Carolino, Amanda L. dos Santos, Edson G. R. Fernandes, Daniela M. Trichês, Yvonne P. Mascarenhas

    Published 2015-01-01
    “…SEM showed a polymerization of PANI-ES over alumina plates. By Le Bail method it was observed that PANI-ES and α-Al2O3 have crystallite average size around, respectively, 41 and 250 Å. …”
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    Article
  15. 235

    Artificial Neural Network and Response Surface Methodology-Driven Optimization of Cu–Al<sub>2</sub>O<sub>3</sub>/Water Hybrid Nanofluid Flow in a Wavy Enclosure with Inclined Perio... by Tarikul Islam, Sílvio Gama, Marco Martins Afonso

    Published 2024-12-01
    “…Hybrid nanofluids, with different mixture ratios of copper (Cu) and alumina (Al<sub>2</sub>O<sub>3</sub>) nanoparticles in water, are used in this study. …”
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    Article
  16. 236

    Electrically chargeable inorganic persistent luminescence in an alternating current driven electroluminescent device by Cunjian Lin, Rujun Yang, Zishuang Wu, Yajing Wang, Chenhan Zhan, Hirohisa Miyata, Xiankan Zeng, Yuantian Zheng, Shihai You, Ying Lv, Yixi Zhuang, Rong-Jun Xie, Jumpei Ueda

    Published 2025-02-01
    “…The spin-coating method-prepared emission layer composites consist of a small bandgap copper-doped zinc sulfide core, a high dielectric constant alumina shell and a chemically passivated dielectric polydimethylsiloxane medium (ZnS:Cu@AlOx@PDMS), and these composites exhibit well-distributed electric fields and excellent operational stability. …”
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    Article
  17. 237

    Sonochemically Modified Lapindo Mud Using Sulfuric Acid for Efficient Adsorption of Phenol in Aqueous Media and Real Wastewater Samples by Karna Wijaya, Adyatma Bhagaskara, Maria Francia Mirabella Sani, Marini Fairuz Vebryana, Fernando Alvaro Pratama, Widuri Anggraeni, Amalia Kurnia Amin, Faturrahman Al Ramadhani, Aldino Javier Saviola

    Published 2024-12-01
    “…Modification of Lapindo mud (LM) using sulfuric acid enables it to remove its impurities, resulting in a material containing 78.4% silica (SiO2) and 15.3% alumina (Al2O3). The SLM adsorbent demonstrated sufficient adsorption performance of 49.8% with an optimal initial phenol concentration of 120 mg/L with a contact time of 100 min at pH of 10. …”
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    Article
  18. 238

    The Modification of Sodium Polyacrylate Water Solution Cooling Properties by AL2O3 by Wojciech Gęstwa, Małgorzata Przyłęcka

    Published 2010-01-01
    “…This paper presents a preliminary examination of water cooling ability as a result of its modification by the addition of sodium polyacrylate and AL2O3 nanoparticles. (AL2O3) alumina oxide was present in gamma phase as a form of nanopowder whose particle size was less than 50 nm. …”
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    Article
  19. 239

    Thermal radiation effects of ternary hybrid nanofluid flow in the activation energy: Numerical computational approach by Hakeem Ullah, Syed Arshad Abas, Mehreen Fiza, Aasim Ullah Jan, Ali Akgul, Magda Abd El-Rahman, Seham M. Al-Mekhlafi

    Published 2025-03-01
    “…Purpose: This study introduces a novel investigation into heat transport phenomena of ternary hybrid, hybrid and nanofluid containing copper, silver and alumina nanoparticles within two stretchy rotating disks maintaining a constant distance. …”
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    Article
  20. 240

    Systematic analysis on the chemical reaction to the material removal in bonnet polishing of fused silica glass by Xiaolong Ke, Wei Wu, Bo Zhong, Tianyi Wang, Song Yuan, Zhenzhong Wang, Daewook Kim, Jianchun Liu, Min Li, Jiang Guo, Chunjin Wang

    Published 2025-01-01
    “…In this study, we use CeO2 abrasive and alumina (Al2O3) abrasive as polishing slurries and utilize a bonnet tool to polish fused silica surfaces. …”
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    Article