Showing 7,461 - 7,480 results of 7,881 for search '"Nuclear Magnetic Resonance"', query time: 0.21s Refine Results
  1. 7461

    Structural, luminescence and judd-ofelt analysis of rare earth doped of magnesium sulfoborate glasses and crystals by Dalhatu, Saddiq Abubakar

    Published 2017
    “…The amorphous/crystalline phases of the glass and crystal samples were characterized by X‒Ray diffraction (XRD), while the structural features of the samples were measured using Fourier transform infrared (FTIR), Raman and nuclear magnetic resonance (NMR) spectroscopy. The optical properties of glass and crystal samples were characterized via UV‒Vis‒NIR and luminescence spectroscopy. …”
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    Thesis
  2. 7462

    Effects of oxidant and dopant loadings on direct ultrasonic irradiated polyaniline with nanostructure by Zheng, Xuefeng

    Published 2020
    “…The area percentage of three sharp, equal intensity, equal distant peaks at 7.02, 7.14, 7.27 assigned to ammonium protons reached a maxi-mum at APS/aniline molar ratio of 1 in the nuclear magnetic resonance (NMR) spec-troscopy. As the molar ratio of APS/aniline increased, four peaks at 2?…”
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    Thesis
  3. 7463

    Design, synthesis of flavokawain b derivative and their cytotoxic effects on MCF-7 and MDA-MB-231 cell lines by Addila, Abu Bakar

    Published 2018
    “…Flavokawain B derivative chalcones bearing methoxy, dimethoxy, trimethoxy, bromo, chloro, fluoro, methyl, methylthio, nitro, hydroxyl and dimethylamino groups on benzaldehyde were synthesized via Claisen-Schmidt condensation method using base catalyst; the synthesized compounds were characterized by using UV-Visible, Fourier Transform Infrared spectrophotometry (FTIR), Gas Chromatography-Mass Spectrometry (GC-MS) and Nuclear Magnetic Resonance (NMR) spectrometry and evaluated for their cytotoxicity against breast cancer cell line by using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay in vitro. …”
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    Thesis
  4. 7464

    Chemical constituents isolated from the ethyl acetate extract of the roots of garcinia atroviridis by Nur Salsabila, Ahmad Roslan

    Published 2020
    “…Several spectroscopy techniques were used to elucidate the structure of isolated compounds, such as mass spectrometer (MS), ultraviolet-visible (UV-Vis), fourier-transform infrared (FTIR), and 1D- nuclear magnetic resonance (NMR) spectroscopy. Biological assays were conducted to all isolated compounds except atrovirisidone (7) due to limited yield. …”
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    Thesis
  5. 7465

    Bioactive Potential of Extracts of <i>Labrenzia aggregata</i> Strain USBA 371, a Halophilic Bacterium Isolated from a Terrestrial Source by Carolina Díaz-Cárdenas, Laura Yinneth Rojas, Susana Fiorentino, Monica P. Cala, Jorge I Díaz, Freddy A. Ramos, Jean Armengaud, Silvia Restrepo, Sandra Baena

    Published 2020-05-01
    “…Their structures were characterized by 1D and 2D nuclear magnetic resonance (NMR). The purified compounds were evaluated for additional cytotoxic activities. …”
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    Article
  6. 7466

    Identification and evaluation of shale oil micro-migration and its petroleum geological significance by Tao HU, Fujie JIANG, Xiongqi PANG, Yuan LIU, Guanyun WU, Kuo ZHOU, Huiyi XIAO, Zhenxue JIANG, Maowen LI, Shu JIANG, Liliang HUANG, Dongxia CHEN, Qingyang MENG

    Published 2024-02-01
    “…The reliability of the micro-migration evaluation results was verified by combining the group components based on the geochromatography effect, two-dimension nuclear magnetic resonance analysis, and the geochemical behavior of inorganic manganese elements in the process of hydrocarbon migration. …”
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    Article
  7. 7467

    Understanding and Mitigating the Dissolution and Delamination Issues Encountered with High-Voltage LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> by Bingning Wang, Seoung-Bum Son, Pavan Badami, Stephen E. Trask, Daniel Abraham, Yang Qin, Zhenzhen Yang, Xianyang Wu, Andrew Jansen, Chen Liao

    Published 2023-08-01
    “…The electrode laminates (transition metal oxides, transition metal oxides, TMOs, coated on an Al current collector with a loading level of around 2.5 mAh/cm<sup>2</sup>) or the TMO powders (pure commercial quality spinel LNMO, NMC, etc.) were stored in the baseline solution, and the transition metal dissolution was studied through nuclear magnetic resonance, such as <sup>1</sup>H NMR, <sup>19</sup>F NMR, scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and inductively coupled plasma mass spectrometry (ICP-MS). …”
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    Article
  8. 7468

    Synthesis and Characterization of Copolymers and Nanocomposites from Limonene, Styrene and Organomodified-Clay Using Ultrasonic Assisted Method by Hodhaifa Derdar, Geoffey Robert Mitchell, Sarra Chaibedraa, Vidhura Subash Mahendra, Zakaria Cherifi, Khaldoun Bachari, Redouane Chebout, Fouzia Touahra, Rachid Meghabar, Mohammed Belbachir

    Published 2022-07-01
    “…The effect of temperature, reaction time and amount of catalyst were studied, and the obtained copolymer structure (lim-co-sty) is characterized by Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance spectroscopy (<sup>1</sup>H-NMR) and differential scanning calorimetry (DSC). …”
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    Article
  9. 7469

    Sustainable Production of Biodiesel from Novel Non-Edible Oil Seeds (<i>Descurainia sophia</i> L.) via Green Nano CeO<sub>2</sub> Catalyst by Maryam Tanveer Akhtar, Mushtaq Ahmad, Mohamed Fawzy Ramadan, Trobjon Makhkamov, Akramjon Yuldashev, Oybek Mamarakhimov, Mamoona Munir, Maliha Asma, Muhammad Zafar, Salman Majeed

    Published 2023-02-01
    “…Thin layer chromatography (TLC), FT-IR, gas chromatography–mass spectroscopy (GCMS), and Nuclear magnetic resonance (NMR) analyses were used to characterize the synthesized biodiesel. …”
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    Article
  10. 7470
  11. 7471

    Chemical Constituents of the Leaves of <i>Campanula takesimana</i> (Korean Bellflower) and Their Inhibitory Effects on LPS-induced PGE<sub>2</sub> Production by Yutong Qi, Se-In Choi, So-Ri Son, Hee-Soo Han, Hye Shin Ahn, Yu-Kyong Shin, Sun Hee Lee, Kyung-Tae Lee, Hak Cheol Kwon, Dae Sik Jang

    Published 2020-09-01
    “…The structures of new compounds <b>1</b>–<b>3</b> were elucidated by analyzing nuclear magnetic resonance (NMR) spectroscopic data, along with high resolution quadrupole time of flight mass (HR-Q-TOF-MS) spectrometric data. …”
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    Article
  12. 7472
  13. 7473

    Nitrogen Addition Affects Soil Respiration Primarily through Changes in Microbial Community Structure and Biomass in a Subtropical Natural Forest by Jiacong Zhou, Xiaofei Liu, Jinsheng Xie, Maokui Lyu, Yong Zheng, Zhangtian You, Yuexin Fan, Chengfang Lin, Guangshui Chen, Yuehmin Chen, Yusheng Yang

    Published 2019-05-01
    “…Treatments involved applying different levels of N (0, 40, and 80 kg ha<sup>&#8722;2</sup> year<sup>&#8722;1</sup>) over a three-year period (January 2013&#8722;December 2015) to explore how soil physicochemical properties, respiration rate, phospholipid fatty acid (PLFA) concentration, and solid state <sup>13</sup>C nuclear magnetic resonance responded to various N addition rate. …”
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    Article
  14. 7474

    Purification, Physicochemical Properties, and Antioxidant Activities of Two Low-Molecular-Weight Polysaccharides from <i>Ganoderma leucocontextum</i> Fruiting Bodies by Xiong Gao, Jiayi Qi, Chi-Tang Ho, Bin Li, Yizhen Xie, Shaodan Chen, Huiping Hu, Zhongzheng Chen, Qingping Wu

    Published 2021-07-01
    “…The main linkage types of GLP-1 were found to be →4)-<i>α</i>-D-Glc<i>p</i>-(1→, →4)-<i>β</i>-D-Glc<i>p</i>-(1→, →3)-<i>β</i>-D-Glc<i>p</i>-(1→, →6)-<i>β</i>-D-Gal<i>p</i>-(1→, →6)-<i>α</i>-D-Glc<i>p</i>-(1→, →4,6)-<i>α</i>-D-Glc<i>p</i>-(1→, and Glc<i>p</i>-(1→ by methylation analysis and nuclear magnetic resonance (NMR) spectroscopy. In addition, GLP-1 could protect NIH3T3 cells against tert-butyl hydroperoxide (tBHP)-induced oxidative damage by increasing catalase (CAT) and glutathione peroxidase (GSH-Px) activities, elevating the glutathione/oxidized glutathione (GSH/GSSG) ratio, and decreasing the malondialdehyde (MDA) level. …”
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    Article
  15. 7475

    Wettability and Its Controlling Factors of Mixed Shale Oil Reservoirs: A Case Study of Permian Lucaogou Formation in Jimusar Sag by Meng Wang, Pengpeng Sun, Dianshi Xiao, Min Wang, Yang Gao, Shuangfang Lu, Xiong Xiong, Yue Peng, Renwen Zhao

    Published 2021-10-01
    “…Using spontaneous imbibition and nuclear magnetic resonance, the wettability characteristics were analyzed. …”
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    Article
  16. 7476
  17. 7477

    Interaction between NSCLC Cells, CD8<sup>+</sup> T-Cells and Immune Checkpoint Inhibitors Potentiates Coagulation and Promotes Metabolic Remodeling—New Cues on CAT-VTE by Catarina Freitas-Dias, Filipe Gonçalves, Filipa Martins, Isabel Lemos, Luís G. Gonçalves, Jacinta Serpa

    Published 2024-02-01
    “…The metabolic remodeling induced by the ICIs was explored by <sup>1</sup>H nuclear magnetic resonance (NMR) spectroscopy. Results: Flow cytometry analysis showed that TCD8<sup>+</sup> and ICIs increase cell death in H292 and PC-9 cells but not in A549 cells. …”
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    Article
  18. 7478

    The CMS Magnetic Field Measuring and Monitoring Systems by Vyacheslav Klyukhin, Austin Ball, Felix Bergsma, Henk Boterenbrood, Benoit Curé, Domenico Dattola, Andrea Gaddi, Hubert Gerwig, Alain Hervé, Richard Loveless, Gary Teafoe, Daniel Wenman, Wolfram Zeuner, Jerry Zimmerman

    Published 2022-01-01
    “…The magnetic induction inside the 6 m diameter superconducting solenoid was measured and is currently monitored by four nuclear magnetic resonance (NMR) probes installed using special tubes at a radius of 2.9148 m outside the barrel hadron calorimeter at ±0.006 m from the coil median <i>XY</i>-plane. …”
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    Article
  19. 7479
  20. 7480

    Anxiety and Perception of Disease Control in Multiple Sclerosis Subjects Treated with Natalizumab by Francesco Corallo, Edoardo Sessa, Carmela Rifici, Maria Cristina De Cola, Marcella Di Cara, Davide Cardile, Giuseppe Venuti, Noemi Bonfiglio, Giangaetano D’Aleo, Angelo Quartarone, Viviana Lo Buono

    Published 2023-12-01
    “…The aim of this study is to investigate whether increasing the frequency of neurological and nuclear magnetic resonance screening may affect anxiety and the perception of disease control in patients treated with natalizumab. …”
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    Article