Showing 5,701 - 5,720 results of 7,249 for search '"metals"', query time: 0.14s Refine Results
  1. 5701

    Uptake and Distribution of Cd in Sweet Maize Grown on Contaminated Soils: A Field-Scale Study by Wending Xu, Guining Lu, Zhi Dang, Changjun Liao, Qiangpei Chen, Xiaoyun Yi

    Published 2013-01-01
    “…The addition of NTA increased the amount of Cd absorbed but left the relative distribution of the metal among the plant organs essentially unchanged. …”
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    Article
  2. 5702

    SIMULATION ANALYSIS FOR ENERGY-ABSORPTION PROPERTIES OF A NESTED SQUARE THIN-WALLED TUBE by YU MingYang, MI CaiYing

    Published 2018-01-01
    “…In order to improve the crashworthiness performance of the thin-walled metal tube,it presents a nested square thin-walled tube structure. …”
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  3. 5703

    Biochemical Evaluation and Green Synthesis of Nano Silver Using Peroxidase from Euphorbia (Euphorbia amygdaloides) and Its Antibacterial Activity by Semra Cicek, Azize Alaylı Gungor, Ahmet Adiguzel, Hayrunnisa Nadaroglu

    Published 2015-01-01
    “…Also, optimal concentration of metal ions was found as 0.5 mM. The synthesized silver nanoparticles were characterized by UV spectrum, scanning electron microscope (SEM) and X-ray diffraction. …”
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    Article
  4. 5704

    Polydiacetylene (PDA) Embedded Polymer-Based Network Structure for Biosensor Applications by Huisoo Jang, Junhyeon Jeon, Mingyeong Shin, Geonha Kang, Hyunil Ryu, Sun Min Kim, Tae-Joon Jeon

    Published 2025-01-01
    “…This color change enables the detection of biomarkers, metal ions, and toxic compounds. Moreover, the combination of PDA with polymeric structures including hydrogels further enhances the sensitivity and structural stability of PDA-based biosensors, making them reliable and effective in complex biological and environmental conditions. …”
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    Article
  5. 5705

    Carbon-Filled E-Glass Fibre-Reinforced Epoxy Composite: Erosive Wear Properties at an Angle of Impingement by K. Sravanthi, V. Mahesh, B.N. Rao, George Fernandez, Lenin A. Haiter

    Published 2022-01-01
    “…Carbon particles dispersed across a metal matrix increased the fibre bonding but decreased the mechanical strength. …”
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    Article
  6. 5706

    Preparation of Fe(II)/MOF-5 Catalyst for Highly Selective Catalytic Hydroxylation of Phenol by Equivalent Loading at Room Temperature by Bai-Lin Xiang, Lin Fu, Yongfei Li, Yuejin Liu

    Published 2019-01-01
    “…The metal-organic framework MOF-5 was synthesized by self-assembling of Zn(NO3)2·7H2O and H2BDC using DMF as solvent by the direct precipitation method and loaded with Fe2+ by the equivalent loading method at room temperature to prepare Fe(II)/MOF-5 catalyst and the microstructure, phases, and pore size of which was characterized by IR, XRD, SEM, TEM, and BET. …”
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    Article
  7. 5707

    In Vitro Antioxidant Activities of Three Selected Dates from Tunisia (Phoenix dactylifera L.) by Wissal Kchaou, Fatma Abbès, Hamadi Attia, Souhail Besbes

    Published 2014-01-01
    “….), with hard texture, from three selected Tunisian cultivars (Allig, Deglet Nour, and Bejo) were analysed from their antioxidant activities using DPPH radical scavenging activity, FRAP assay, H2O2 scavenging activity, and metal chelating activity. Date extracts showed strong and concentration-dependant activity in all tested methods. …”
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  8. 5708

    Modeling of Functionally Graded Material Shells by Khalil Sihame, Elmhaia Oussama, Hamdaoui Abdellah, Braikat Bouazza, Hu Heng, Boukamel Adnane, Damil Noureddine

    Published 2025-01-01
    “…By applying this robust algorithm within the framework of Kirchhoff-Love theory, we analyze how the properties of FGM shells vary smoothly from metal at the base to ceramic at the surface, crucial for applications in aeronautics and civil engineering where stability under load is paramount. …”
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  9. 5709

    "Ciudadespacios". Recorridos y tránsitos de las prácticas culturales de jóvenes por la ciudad de Popayán by Deibar René Hurtado

    Published 2011-01-01
    “…En el contexto de una ciudad como Popayán (Colombia), se hace muy interesante visibilizar cómo la práctica del skate bording, de la capoeira, del teatro, del death metal, y la práctica política en el movimiento estudiantil, se convierten en prácticas de subjetivación y en escenarios de configuración de imaginarios, en razón a que es a través de éstos que algunos jóvenes y algunas jóvenes se agrupan para compartir un interés común. …”
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  10. 5710

    Preconcentration with 1-Nitroso-2-naphthol Complexes on Dowex MWC-1 Resin: Determination of Cu and Zn at Trace Level in Drinking Water Samples by ICP-AES by A. Demir Mulazimoglu, I. E. Mulazimoglu, E. Ozkan

    Published 2009-01-01
    “…For this purpose, the water samples were treated with 1-nitroso-2-naphthol to form metal complexes on Dowex MWC-1 resin. Prior to the sorption process, the column was treated with a chelating resin Dowex MWC-1 and the column was prepared by passing buffer solution at different pH values. …”
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    Article
  11. 5711

    Synthesis of Silver Nanoparticles Using Triticum aestivum and Its Effect on Peroxide Catalytic Activity and Toxicology by Shobha Waghmode, Pooja Chavan, Vidya Kalyankar, Sharada Dagade

    Published 2013-01-01
    “…The peaks in XRD pattern are in good agreement with those of face-centered-cubic form of metallic silver. Further the IR and TEM shows confirmation of nanocrystalline nature of silver nanoparticles. …”
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    Article
  12. 5712

    Removal of Pb (II) Ions from Aqueous Solutions by Cladophora rivularis (Linnaeus) Hoek by Naser Jafari, Zoreh Senobari

    Published 2012-01-01
    “…Biosorption of Pb(II) using Cladophora rivularis was examined as a function of initial pH heavy metal concentration and temperature. The optimum pH value for the biosorption of lead was 4.0. …”
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    Article
  13. 5713

    Evaluation of carbide capacity in CaO-based ternary systems at 1773k for refining process by Yu Z.-G., Leng H.-Y., Wang L.-J., Chou K. -C.

    Published 2020-01-01
    “…The removal of impurities depends on the mass transfer between the slag-metal interface, and the carbide capacity of the refining slags is crucial to control the carbon content in the final products. …”
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    Article
  14. 5714

    FEM modelling of hydrogen embrittlement in API 5L X65 steel for safe hydrogen transportation by Shaghayegh Nazar, Sebastian Lipiec, Edoardo Proverbio

    Published 2025-02-01
    “…When hydrogen enters the metal, it significantly compromises its fracture toughness. …”
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  15. 5715

    Experimental and Numerical Analysis of Torque Properties of Rotary Elastomer Particle Damper considering the Effect of Gap and No Gap between Rotor and Body of the Damper by Allah Rakhio, Yasushi Ido, Yuhiro Iwamoto, Atsushi Toyouchi

    Published 2021-01-01
    “…Elastomer particles are soft, and they have different behavior from hard (metallic) particles. Experiments on rotary elastomer particle dampers considering the gap between rotor and cylinder helped investigate the effects of the change in packing fraction, rotational speed, size of elastomers, and the gap between the rotor and the damper body. …”
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  16. 5716

    Advances in the catalytic conversion of CO2 by Gu Xiyang

    Published 2025-01-01
    “…Innovations, such as noble metal-doped semiconductors and two-dimensional materials like graphene, have shown promise in improving light absorption, electron transfer, and stability. …”
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  17. 5717

    Measuring. Monitoring. Management. Control by P.G. Mikhaylov, A.P. Mikhaylov, I.N. Paskhin, A.R. Akhmetov, E.D. Fadeev

    Published 2024-12-01
    “…The article is devoted to the development of constructive and technological methods for ensuring the temporal and parametric stability of films and film structures formed on metal–film sensors of physical quantities. The relevance of the presented materials lies in the fact that the stability of sensors depends to a greater extent on the stability of resistive films and film structures. …”
    Article
  18. 5718

    Structural insights into human topoisomerase 3β DNA and RNA catalysis and nucleic acid gate dynamics by Xi Yang, Xuemin Chen, Wei Yang, Yves Pommier

    Published 2025-01-01
    “…We present a series of cryo-EM structures of human TOP3B with its cofactor TDRD3 during cleavage and rejoining of DNA or RNA, thus elucidating the roles of divalent metal ions and key enzyme residues in each step of the catalytic cycle. …”
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  19. 5719

    Selected properties of phosphorus dendrimers: green approaches to catalysis by Caminade, Anne-Marie, Maraval, Valérie

    Published 2024-02-01
    “…In a second part, some even greener approaches of catalysis with dendrimers will be displayed, such as catalysis in water, switchable catalysis, and organocatalysis (no metal used). Different types of catalytic reactions have been studied, such as Stille, Suzuki and Sonogashira couplings, Knoevenagel condensations, Michael additions, asymmetric allylic alkylations, O- and N-arylation and vinylation reactions, [2${+}$2${+}$2]-cycloaddition reactions, isomerization of 1-octan-3-ol, Friedel–Crafts acylations, Heck reactions, hydrogenations, hydrations, transfer hydrogenations, amination of $\beta $-dicarbonyl compounds, etc.…”
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  20. 5720

    Microstructural, morphological, and optical properties of Fe2O3 nanoparticles obtained from Fe-MIM MOF by Olalekan C Olatunde, Murendeni P Ravele, Tunde L Yusuf, Damian C Onwudiwe

    Published 2025-01-01
    “…This study explores the microstructural, morphological, and optical properties of Fe _2 O _3 nanoparticles synthesized from the pyrolysis of ZIF-8 like Fe-2-methyl imidazole (MIM) metal–organic frameworks (MOFs). Using X-ray diffraction (XRD) profile analysis methods, including the modified Scherrer, Williamson–Hall (W-H), size strain plot, and Halder-Wagner methods, the impact of annealing temperature on the microstructural parameters and crystal defects of the obtained Fe _2 O _3 nanoparticles was investigated. …”
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