Showing 3,081 - 3,100 results of 3,268 for search '"polymers"', query time: 0.06s Refine Results
  1. 3081

    Aging of Cross-Linked Polyethylene Insulation Cable Lines by I. V. Oleksyuk

    Published 2021-04-01
    “…The most significant reason for the insulation aging  is high temperature, which accelerates the reaction of thermo-oxidative destruction, during which high-molecular polymer compounds decompose. In fact, cables are operated at temperatures below the long-term permissible values, and, therefore, the aging of the insulation is slower, and the actual service life will be longer than the standard. …”
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  2. 3082
  3. 3083

    Spermine Significantly Increases the Transfection Efficiency of Cationic Polymeric Gene Vectors by Yue Lv, Jiaoqin Xue, Pengfei Cui, Lin Qiu

    Published 2025-01-01
    “…Among these, polyethyleneimine (PEI) stands out as the most widely utilized cationic polymer due to its accessibility. Traditional methods of modifying PEI, such as ligand conjugation, chemical derivatization, and cross-linking, are associated with intricate preparation procedures, limited transfection efficiency, and suboptimal biocompatibility. …”
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  4. 3084

    Percutaneous Coronary Intervention Using the DynamX Sirolimus-Eluting Bioadaptor: 12-Month Clinical and Imaging Outcomes by Mark Webster, Douglas Scott, Madhav Menon, Dougal McClean, Seif El-Jack, Gerard Wilkins, Scott A. Harding

    Published 2024-01-01
    “…The DynamX Bioadaptor is a novel implant with uncaging elements that disengage after polymer resorption and permits restoration of vessel function, thereby potentially reducing late adverse cardiac events. …”
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  5. 3085

    The evaluation of shear bond strength of denture teeth to CAD/CAM dentures acrylic after aging in gastric acid by Neslihan Güntekin, Burcu Kızılırmak

    Published 2025-01-01
    “…Samples were prepared using two different manufacturing methods for denture base resins (heat-polymerization and CAD/CAM) and three different types of artificial teeth (acrylic, Microfiller Reinforced Polymer Matrix Composite and CAD/CAM milled). CAD/CAM-milled denture base was combined with three different artificial teeth, while heat-polymerized base was combined with acrylic teeth. …”
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  6. 3086
  7. 3087
  8. 3088
  9. 3089

    In Situ Testing Evaluation and Numerical Simulation of CFRP-Strengthened Reinforced Concrete Two-Way Slab with Initial Defect by Yepu Sheng, Yu Gong

    Published 2024-12-01
    “…Carbon fiber-reinforced polymer (CFRP) composites, renowned for their high strength-to-weight ratio, are increasingly utilized in the strengthening of structural components. …”
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  10. 3090

    Electrochemical sensor based on polyaniline supported CdS/CeO2/Ag3PO4 nanocomposite for Malathion detection by Tigabu Bekele Mekonnen

    Published 2024-01-01
    “…Different nanomaterials in single (CeO2), binary (CdS/CeO2 and Ag3PO4/CeO2), ternary CdS/CeO2/Ag3PO4 (4:1 molar ratio) and conductive polymer supported (PANI-CdS/CeO2/Ag3PO4) were synthesized by co-precipitation method. …”
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  11. 3091

    Bioactive Coatings on 3D Printed Polycaprolactone Scaffolds for Bone Regeneration: A Novel Murine Femur Defect Model for Examination of the Biomaterial Capacity for Repair by Karen M. Marshall, Jonathan P. Wojciechowski, Vineetha Jayawarna, Abshar Hasan, Cécile Echalier, Sebastien J. P. Callens, Tao Yang, Janos M. Kanczler, Jonathan I. Dawson, Alvaro Mata, Manuel Salmeron‐Sanchez, Molly M. Stevens, Richard O. C. Oreffo

    Published 2025-01-01
    “…In summary, Laponite/BMP‐2 coated PCL‐TMA900 scaffolds offer a biodegradable, osteogenic construct for bone augmentation with potential for development into a large scale polymer scaffold for clinical translation.…”
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  12. 3092

    Fabrication of Hybrid Materials Based on Waste Polyethylene/Porous Activated Metakaolinite Nanocomposite as an Efficient Membrane for Heavy Metal Desalination Processes by Mahmoud F. Mubarak, Mohamed A. Zayed, Ayman Nafady, Abeer E. L. Shahawy

    Published 2021-01-01
    “…Moreover, elemental mapping studies have confirmed the intercalation of activated bentonite clay within the polymer matrix. The obtained results demonstrated that increased flux and rejection capability of membranes occurred at high clay dosage. …”
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  13. 3093

    Porous Copper‐PTFE Hybrid Electrocatalyst for CO2 Reduction with High C2+ Selectivity by Yoshitomo Seki, Mamiko Nakabayashi, Masakazu Sugiyama, Tsutomu Minegishi

    Published 2025-01-01
    “…In this work, hydrophobic polymer, polytetrafluoroethylene (PTFE), added porous Cu electrocatalysts were firstly and successfully prepared on gas diffusion layer, and the significant enhancement of FEs toward C2+ products, especially C2H4, and durability were found. …”
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  14. 3094

    Thermal performance of a micropolar fluid flowing around a vertical cone with consideration of spatially varying heat source by Vinoth Kumar B, Sreenivasulu P, Bilal S, Poornima T

    Published 2025-01-01
    “…This study underlines the importance of viscoelastic-micropolar fluids which finds applications as environmental flows, biomedical engineering, polymer processing, rheology. This research shows that longer relaxation periods thin the thermal boundary layer and enhance fluid movement, while higher Deborah numbers increase temperatures and micro-rotation but reduce heat transfer efficiency and flow speed. …”
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  15. 3095

    In-situ/operando study of Cu-based nanocatalysts for CO2 electroreduction using electrochemical liquid cell TEM by Jiawei Wan, Jiawei Wan, Qiubo Zhang, Ershuai Liu, Ershuai Liu, Yi Chen, Yi Chen, Jiana Zheng, Jiana Zheng, Amy Ren, Walter S. Drisdell, Walter S. Drisdell, Haimei Zheng, Haimei Zheng

    Published 2025-01-01
    “…With the recent breakthrough development of high-resolution polymer electrochemical liquid cells, in-situ electrochemical liquid cell transmission electron microscopy (EC-TEM) alongside other advanced microscopy techniques, has become a powerful platform for revealing electrocatalysts restructuring at the atomic level. …”
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  16. 3096
  17. 3097

    Integrated analysis of cellulose structure and properties using solid-state low-field H-NMR and photoacoustic spectroscopy by Levente Csóka, Worakan Csoka, Ella Tirronen, Ekaterina Nikolskaya, Yrjö Hiltunen, Bunsho Ohtani

    Published 2025-01-01
    “…Abstract In this study, we explore the structural intricacies of cellulose, a polymer composed of glucose monomers arranged in a linear chain, primarily investigated through solid-state NMR techniques. …”
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  18. 3098

    Investigation of mechanical, morphological and thermal properties of waste glass powder and wood flour reinforced polypropylene composite by Tanhim Zaman Sheikh, Foysal Ahammed Mozumdar, Md Rezaul Karim, Qumrul Ahsan

    Published 2025-01-01
    “…A higher percentage (20 wt%) addition of waste glass powder caused non-uniform dispersion and the agglomeration of the fillers in the polymer matrix composite, which was visible in the microscopic analysis. …”
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  19. 3099

    Effectiveness of three biomimetic remineralization procedures in artificial caries-affected dentin – an in-vitro pilot study by Rosário Costa, Sofia Arantes-Oliveira, Lisete Fernandes, Fábio G. Figueiras, João Cardoso Ferreira, Paulo Ribeiro de Melo

    Published 2024-12-01
    “…The BRPs studied were casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), self-assembling P11-4 (SAP-P11-4), and calcium phosphate polymer- induced liquid precursor (Ca/P-PILP). Methods: Seventy-two specimens of healthy human dentin were divided into twelve groups. …”
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  20. 3100

    Cytotoxicity Evaluation of Different Types of CAD/CAM Blocks by Fikret Özgür Coşkun, Semanur Özüdoğru, Mustafa Hayati Atala, Giray Buğra Akbaba

    Published 2023-08-01
    “…Methods: Six different CAD/CAM materials were investigated: feldspar ceramic VM (Vitablocks Mark II ), resin nano-ceramic LU (Lava Ultimate), hybrid ceramic C (Cerasmart), leucite-reinforced ceramic LRF (GC LRF), zirconia-reinforced lithium silicate ceramic VS (Vita Suprinity), polymer-infiltrated ceramic-network VE (Vita Enamic). …”
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