Showing 4,321 - 4,340 results of 7,249 for search '"metals"', query time: 0.06s Refine Results
  1. 4321

    Analysis of Elastohydrodynamic Lubrication for Steel-polymer Spur Gear Pairs by Zhou Jia'ao, Liu Xiaoling, Li Qun, Zhang Zheng

    Published 2024-07-01
    “…Polymer gears are susceptible to pitting failure in transmission due to load, lubrication, etc. Metal-polymer gears' pairs have a longer service life than polymer-polymer gear pairs. …”
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    Article
  2. 4322

    Asymmetric multi-component trifunctionalization reactions with α-Halo Rh-carbenes by Xiaoyan Yang, Xiaoyu Zhou, Wenhao Hu, Yu Qian

    Published 2025-02-01
    “…In this study, we investigate the catalytic potential of α-halo Rh-carbenes, leveraging the concept of metal carbynoids in multi-functionalization reactions. …”
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    Article
  3. 4323

    Removal of Cu(II) Ions by Leucaena Leucocephala (Subabul) Seed Pods from Aqueous Solutions by A. K. Patil, V. S. Shrivastava

    Published 2010-01-01
    “…The maximum adsorption of Cu(II) ions on Leucaena leucocephala seed pods was 94.17% at pH 5. The amount of metal adsorbed per unit weight of adsorbent increases with time and reach equilibrium after 30 minutes of shaking time for the different initial metal concentrations. …”
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    Article
  4. 4324

    Iron-catalysed stereoselective NH transfer enables dynamic kinetic resolution of sulfoxides by Fang-Xu Fan, Hui Xu, Shi-Xiong Tang, Yanfeng Dang, Fei Wang

    Published 2025-02-01
    “…Abstract Transition metal-catalysed asymmetric nitrene transfer provides a powerful means to access various bioactive N-containing compounds as single enantiomers. …”
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    Article
  5. 4325

    Gas-Cooled Fast Reactor: A Historical Overview and Future Outlook by W. F. G. van Rooijen

    Published 2009-01-01
    “…During that period, the GCFR concept was expected to increase the breeding gain, the thermal efficiency of a nuclear power plant, and alleviate some of the problems associated with liquid metal coolants. During this period, the GCFR concept was found to be more challenging than liquid-metal-cooled reactors, and none were ever constructed. …”
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    Article
  6. 4326

    Melting features and viscosity of SiO2-CaO-MgO-Al2O3-FeO nickel slag in laterite metallurgy by Pan C., Lv X., Bai C., Liu X., Li D.

    Published 2013-01-01
    “…It determines the operation efficiency, metal recovery ratio, energy consumption and the distribution of elements (like S and P) between the slag and metal. …”
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    Article
  7. 4327

    Schlieren texture and topography induced confinement in an organic exciton-polariton laser by Florian Le Roux, Andreas Mischok, Francisco Tenopala-Carmona, Malte C. Gather

    Published 2025-01-01
    “…Morphology tuning also permitted polariton lasing in more lossy metallic microcavities while maintaining a competitive lasing threshold. …”
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    Article
  8. 4328

    Evaluation of free radical scavenging activity of various extracts of leaves from Kedrostis foetidissima (Jacq.) Cogn. by Kalaisezhiyen Pavithra, Sasikumar Vadivukkarasi

    Published 2015-03-01
    “…In vitro free radical scavenging activities of the extracts were assessed against DPPH and hydroxyl radicals. The metal chelating activity and reducing power ability of the extracts were also determined. …”
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    Article
  9. 4329

    Recognition Preference of Rhodamine Derivative Bearing Phthalimido Gly for Hg2+ by UV-Vis and Fluorescence Spectroscopy by Fanyong Yan, Meng Wang, Donglei Cao, Ning Yang, Bin Ma, Li Chen

    Published 2013-01-01
    “…In addition, the effects of pH, coexisting metal ions, and the reversibility were investigated in detail.…”
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    Article
  10. 4330

    Densely populated single‐atom catalysts for boosting hydrogen generation from formic acid by Xiaogeng Zhao, Junmin Wang, Dongnuan Zhang, Yunhui Hao, Xingmian Zhang, Junna Feng, Hong Su, Cheng Feng, Chun Wang

    Published 2025-01-01
    “…However, the formation of metal nanoparticles in M‐N‐C materials is coupled with high‐temperature calcination conditions, limiting the density of M‐Nx active sites and thus restricting the catalytic performance of such catalysts. …”
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    Article
  11. 4331

    ADSORPTION KINETICS AND THERMODYNAMICS OF CIPROFLOXACIN FROM AQUEOUS SOLUTIONS BY MAGNETIC IRON OXIDE NANOPARTICLES MODIFIED MORINGA PODS by Mokete John Phele, Fanyana Moses Mtunzi, Joe Modise, David Shooto

    Published 2024-11-01
    “…The adsorption process of metal oxide nanoparticles has been studied as an effective means of removing organic and inorganic contaminants from water and wastewater. …”
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    Article
  12. 4332

    Novel technique to produce porous thermochromic VO2 nanoparticle films using gas aggregation source by Jan Prokeš, Tereza Košutová, Jaroslav Kousal, Anna Kuzminova, Ondřej Kylián

    Published 2025-01-01
    “…Abstract Vanadium dioxide (VO2) is a phase transition material that undergoes semiconductor-to-metal transition at the temperature of about 68 °C. …”
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    Article
  13. 4333

    Complementary Machining – Machining Strategy for Surface Modification: A Review by Thabo Mathonsi, Rudolph Frans Laubscher

    Published 2024-11-01
    “… All fabrication techniques utilized to manufacture metallic parts modify the surface integrity of the part. …”
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    Article
  14. 4334

    Measuring high-efficiency perfect composite vortex beams with reflective metasurfaces in microwave band by Hong Jing, Ni Mengyi, Zhang Zhengping, Hu Zheng-Da, Wang Jicheng, Shen Xiaopeng, Wang Xiong, Li Mengmeng, Khakhomov Sergei

    Published 2024-12-01
    “…Perfect vortex beams, characterized by their topological charge-independent intensity profile, have important applications in enhancing communication capacity and optimizing particle manipulation. In this paper, metal-insulator-metal copper-coin type reflective metasurfaces are proposed to generate perfect composite vortex beams in X-band. …”
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    Article
  15. 4335

    Nonuniform Corrosion in the Vertical Direction of Q345 Steel in a Real Ocean Environment by Jiezhen Hu, Huan Huang, Xin Hu, Peichang Deng, Guo Zheng, Jiahong Chen, Zhiwen Tu

    Published 2025-01-01
    “…The aim of this investigation was to study nonuniform corrosion in the vertical direction of Q345 steel in the South China Sea. First, a metal corrosion monitoring system was designed and applied based on the coulometer principle and array electrode technology. …”
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    Article
  16. 4336

    Biologically Derived Gold Nanoparticles and Their Applications by Arpita Roy, Chetan Pandit, Amel Gacem, Mohammed S. Alqahtani, Muhammad Bilal, Saiful Islam, Md. Jamal Hossain, Mohammed Jameel

    Published 2022-01-01
    “…The metabolic activities of biological agents convert dissolved metal ions into nanometals. For biosynthesis of metal nanoparticles, various biological agents like plants, fungus, and bacteria are utilized. …”
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    Article
  17. 4337

    Localization of plastic deformation during deformation of low‑carbon steel by V. P. Fetisov

    Published 2023-01-01
    “…When controlling the length of the yield site, the influence of the ferrite grain size, the amount of perlite, temperature, speed and deformation scheme on the localization of low‑carbon steel plastic deformation, which reduces the ability of the metal to deformation hardening, is considered.…”
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    Article
  18. 4338

    INFLUENCE OF MATERIALS DISPERSION ON SPEEDS OF THE SOLID-PHASE RESTORATION PROCESSES by S. L. Rovin

    Published 2014-11-01
    “…At recovery of metal discard the scale factor influences intensity of realization of oxidation-reduction reactions. …”
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    Article
  19. 4339

    Solving of the problem of heating process of prismatic alloys and slugs in regime of contraflow by Ju. S. Postolnik, V. I. Timoshpolskij, O. A. Chernyj, D. N. Andrianov, V. L. Shcherbakov

    Published 2003-05-01
    “…There are studied the regularities of dynamics of the (gas) and metal heat carrier temperatures depending on different parameters.…”
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  20. 4340