Showing 361 - 380 results of 14,114 for search '"Chemical ', query time: 0.10s Refine Results
  1. 361

    INVESTIGATION OF CHEMICAL COMPOSITION HETEROGENEITY OF MULTICOMPONENT BRASSES AT HIGH-SPEED HARDENING OF THE MELT . by M. V. Vereshchagin, I. V. Agunovich

    Published 2010-11-01
    “…Investigation of heterogeneity of chemical lcomposition in cast and rapid-quenched alloys of system Cu-Zn-Ni-FeP-Pb-Sn is carried out…”
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  2. 362

    Lignin and biodegradable polymer blends with chemically treated biofiller for green thermoplastic composites by Waleed Y. Rizg, Amerh Aiad Alahmadi, Mohammed Baradwan, Rahul Dev Bairwan, Marwan M, Ahmed K. Mohamed, Sherif El Saadany, CK Abdullah, H.P.S. Abdul Khalil

    Published 2025-03-01
    “…The extracted crude lignin was blended with PHBV as a matrix, and spent coffee grounds (SCG) were used as biofillers. SCG were chemically modified through sodium hydroxide (NaOH) treatment and maleic anhydride (MA) grafting to enhance their compatibility with the PHBV/lignin blend. …”
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  3. 363

    An Experimental and Quantum Chemical Calculation Study on the Performance of Different Types of Ester Collectors by Di Wu, Jianhua Chen, Yuqiong Li

    Published 2025-01-01
    “…The microcalorimetry test also shows that the adsorption heat of the former two is higher. Quantum chemical calculations show the energy difference between the HOMOs of the collector and the LUMOs of minerals. …”
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  4. 364
  5. 365

    fragSMILES as a chemical string notation for advanced fragment and chirality representation by Fabrizio Mastrolorito, Fulvio Ciriaco, Maria Vittoria Togo, Nicola Gambacorta, Daniela Trisciuzzi, Cosimo Damiano Altomare, Nicola Amoroso, Francesca Grisoni, Orazio Nicolotti

    Published 2025-01-01
    “…In this paper, we present fragSMILES, a novel fragment-based molecular representation in the form of string. fragSMILES encode fragments in a ‘chemically-meaningful’ way via a novel graph-reduction approach, allowing to obtain an efficient, interpretable, and expressive molecular representation, which also avoids fragment redundancy. fragSMILES contributes to the field of fragment-based representation, by reporting fragments and their ‘breaking’ bonds independently. …”
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  6. 366
  7. 367

    Solar-driven production of renewable chemicals via biomass hydrogenation with green methanol by Guangyu Chen, Cenfeng Fu, Wenhua Zhang, Wanbing Gong, Jun Ma, Xiaomin Ji, Lisheng Qian, Xuefei Feng, Chuansheng Hu, Ran Long, Yujie Xiong

    Published 2025-01-01
    “…Abstract Solar-driven, selective biomass hydrogenation is recognized as a promising route to renewable chemicals production, but remains challenging. Here, we report a TiO2 supported Cu single-atom catalyst with a four-coordinated Cu1−O4 structure, which can be universally applied for solar-driven production of various renewable chemicals from lignocellulosic biomass-derived platform molecules with good yields using green methanol as a hydrogen donor, to address this challenge. …”
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  11. 371

    Influence of Pectolytic Enzymes and Selected Yeast Strains on the Chemical Composition of Blackberry Wines by Tomić Antonija, Žulj Marin Mihaljević, Andabaka Željko, Tomaz Ivana, Jakobović Snježana, Jeromel Ana

    Published 2018-09-01
    “…The aim of this study was to determine concentrations of individual o rganic acids, polyphenolic and aromatic compounds in blackberry wine, and to define the influence of different yeast strains (Uvaferm BDX and Lalvin 71B) and pectolytic enzymes (L allzyme OE and Lallzyme EX-V) on the chemical composition and quality of the wine. Blackberry wines were produced in five variants, depending on yeasts and enzymes used: BDX OE, BDX EX-V, 71B OE, 71B EX-V, and Control without the addition of selected yeasts and enzymes. …”
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  12. 372

    The influence of adding B. subtilis bacteria on the mechanical and chemical properties of cement mortar by Osama Ahmed Ibrahim, Ahmed Ibrahim Hassanin Mohamed, Wael Ibrahim, Raghda Osama Abd-Al Ftah, Shimaa R. Hamed, Sherif Fakhry M. Abd-Elnaby

    Published 2025-01-01
    “…Bacteria were then added to the cement mortar in amounts of 5% and 10% by weight to evaluate their effect on the mechanical and chemical properties of the modified mortar. Results The study examined the compressive and flexural strength of the modified mortar over time, as well as its microscopic properties and chemical composition after 28 days. …”
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  13. 373

    Risk characterisation of chemicals of emerging concern in real-life water reuse applications by Jan C. Specker, Antonia Praetorius, Milo L. de Baat, Nora B. Sutton, Annemarie P. van Wezel

    Published 2025-01-01
    “…However, the ubiquitous presence of chemicals of emerging concern (CECs) in natural systems, especially the aquatic environment, represents a significant obstacle to water reuse and the receiving environment. …”
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  14. 374

    Machine Learning Techniques to Analyze the Influence of Silica on the Physico-Chemical Properties of Aerogels by Hamdi Chaouk, Emil Obeid, Jalal Halwani, Jack Arayro, Rabih Mezher, Omar Mouhtady, Eddie Gazo-Hanna, Semaan Amine, Khaled Younes

    Published 2024-08-01
    “…Overall, this study highlights the effectiveness of machine learning techniques like PCA in optimizing and understanding the complex inter-relationships among the physico-chemical properties of silica aerogels.…”
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    Fibre Laser Cutting and Chemical Etching of AZ31 for Manufacturing Biodegradable Stents by Ali Gökhan Demir, Barbara Previtali, Carlo Alberto Biffi

    Published 2013-01-01
    “…The potentialities of combining nanosecond laser microcutting and chemical etching are shown and discussed.…”
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    Slip Effects on Peristaltic Transport in an Inclined Channel with Mass Transfer and Chemical Reaction by T. Hayat, Humaira Yasmin, S. Asghar, Awatif A. Hendi

    Published 2013-01-01
    “…The whole analysis has been carried out in the presence of mass transfer and chemical reaction. The channel asymmetry is generated because of peristaltic wave train on the walls through different amplitudes and phases. …”
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