Showing 1 - 20 results of 280 for search '"Nuclear magnetic resonance"', query time: 0.08s Refine Results
  1. 1

    Optical widefield nuclear magnetic resonance microscopy by Karl D. Briegel, Nick R. von Grafenstein, Julia C. Draeger, Peter Blümler, Robin D. Allert, Dominik B. Bucher

    Published 2025-02-01
    “…While cameras have significantly advanced optical, infrared, and electron microscopy, imaging nuclear magnetic resonance (NMR) signals on a camera has remained elusive. …”
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    Article
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    Nuclear Magnetic Resonance Study on Microstructure and Permeability of Coals of Different Ranks by Jiajia Liu, Jianmin Hu, Gaini Jia, Jianliang Gao, Dan Wang

    Published 2020-01-01
    “…The microscopic pore characteristics of coal samples were measured by nuclear magnetic resonance and liquid nitrogen adsorption methods. …”
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    Evaluating Sampling Uncertainty in the Quantitative 1H Nuclear Magnetic Resonance Analysis of Lignin by Shrikant Shivaji Pawade, Lauri Toom, Koit Herodes, Ivo Leito

    Published 2025-01-01
    “…In recent years, lignin analysis utilizing quantitative nuclear magnetic resonance (qNMR) has attracted considerable interest and has been the subject of numerous studies. …”
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    Study on the Imbibition Characteristics of Different Types of Pore-Throat Based on Nuclear Magnetic Resonance Technology by Xiong Liu, Yang Zhang, Ziming Zhang, Jinze Xu, Desheng Zhou, Jian Su, Ying Tang

    Published 2022-01-01
    “…On the basis of imbibition experiments, combined with nuclear magnetic resonance and pseudo-color processing technology, this paper clarified the dominant forces of different types of pore-throat and quantitatively characterized the contribution of different levels of pore-throat to imbibition oil recovery. …”
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    Article
  7. 7

    Quantitative Determination and Validation of Metformin Hydrochloride in Pharmaceutical Using Quantitative Nuclear Magnetic Resonance Spectroscopy by H. H. Gadape, K. S. Parikh

    Published 2011-01-01
    “…Rapid, specific and accurate proton nuclear magnetic resonance spectroscopy (1H NMR) method was developed to determine metformin hydrochloride antidiabetic drug in pharmaceutical tablet formulation. …”
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    Article
  8. 8

    Research on Adsorption and Desorption Characteristics of Gas in Coal Rock Based on Nuclear Magnetic Resonance Technology by Xukun Wu, Guangming Zhao, Youlin Xu, Xiangrui Meng, Xiang Cheng

    Published 2022-01-01
    “…In order to explore the change characteristics of the adsorption and desorption performance of coal under high gas pressure, low-field nuclear magnetic resonance (LFNMR) technology was used to conduct experimental research on coal adsorption and desorption. …”
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    Article
  9. 9

    Estimation of the Resistivity Index via Nuclear Magnetic Resonance Log Data Based on Fractal Theory by Cheng Feng, Chuang Han, Wenxing Duan, Wei Wang, Yuntao Zhong, Ziyan Feng, Ning Zhang

    Published 2020-01-01
    “…Firstly, a novel model of estimating the resistivity index with T2 time was derived based on fractal theory, the relationship between nuclear magnetic resonance (NMR) T2 spectrum and capillary pressure curve (T2-Pc), and Archie formula. …”
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    Article
  10. 10

    Pore Changes in Purple Mudstone Based on the Analysis of Dry-Wet Cycles Using Nuclear Magnetic Resonance by Chen Dang, Zhili Sui, Xiuyuan Yang, Zhenlong Ge

    Published 2022-01-01
    “…In this paper, the pore changes in the wet and dry circulation of purple mudstone in the three gorges reservoir area are studied by means of nuclear magnetic resonance (NMR). The results show that the simulated weathering of wet and dry circulation has a great influence on the purple mudstone. …”
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    Article
  11. 11

    Qualitative and Quantitative Evaluation of Chemical Constituents from Shuanghuanglian Injection Using Nuclear Magnetic Resonance Spectroscopy by Ziyan Wang, Zuoyuan Wang, Miaomiao Jiang, Jing Yang, Qingfen Meng, Jianli Guan, Maoling Xu, Xin Chai

    Published 2022-01-01
    “…By employing nuclear magnetic resonance (NMR), we implemented a chemical research on Shuanghuanglian injection (SHLI) and identified 17 components, including eight primary metabolites and nine secondary metabolites. …”
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    Article
  12. 12

    Metabolic Alterations of the Zebrafish Brain after Acute Alcohol Treatment by 1H Nuclear Magnetic Resonance Spectroscopy by Dong-Cheol Woo, Goo-Young Kim, Hyun-Ju Kim, Eunjung Bang, Hyang-Shuk Rhim, Sang-Young Kim, Do-Wan Lee, Chi-Bong Choi, Youl-Hun Seoung, Bo-Young Choe

    Published 2013-01-01
    “…The purpose of this study is to investigate the metabolic alterations associated with acute alcohol treatment in zebrafish by 1H nuclear magnetic resonance spectroscopy (NMRS). The brain metabolism of zebrafish was investigated after acute alcohol treatment (one-hour long exposure of adult fish to 0.00%, 0.25%, 0.50%, or 1.00% ethyl alcohol) with whole brain extraction. …”
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    Article
  13. 13

    Exploring the Effect of Mechanical Damage on the Water State in Blueberries Using Low-Field Nuclear Magnetic Resonance Spectroscopy by LUO Zixuan, JIANG Fengli, WU Peijing, SONG Ping, DING Keke

    Published 2025-02-01
    Subjects: “…blueberry; mechanical injury; temperature; low-field nuclear magnetic resonance spectroscopy; moisture distribution…”
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    Article
  14. 14

    Nuclear Magnetic Resonance Fingerprinting and Principal Component Analysis Strategies Lead to Anti-Tuberculosis Natural Product Discovery from Actinomycetes by Jianying Han, Xueting Liu, Lixin Zhang, Ronald J. Quinn, Miaomiao Liu

    Published 2025-01-01
    “…Methods: This study integrates cultivation optimization, nuclear magnetic resonance (NMR) fingerprinting, and principal component analysis (PCA) to explore microbial secondary metabolites as potential anti-TB agents. …”
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    Comparison of Attenuated Total Reflectance Mid-Infrared, Near Infrared, and 1H-Nuclear Magnetic Resonance Spectroscopies for the Determination of Coffee’s Geographical Origin by Jessica Medina, Diana Caro Rodríguez, Victoria A. Arana, Andrés Bernal, Pierre Esseiva, Julien Wist

    Published 2017-01-01
    “…Spectroscopic techniques such as Nuclear Magnetic Resonance (NMR), near infrared (NIR), and mid-infrared (mIR) have arisen as strong candidates for the task. …”
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    Freezing-Thawing Damage Mechanism of Coal Gangue Concrete Based on Low-Field Nuclear Magnetic Resonance, Scanning Electron Microscopy, and N2 Adsorption by Bowen Hou, Jisheng Qiu, Peng Guo, Xujun Gao, Ruyi Zhang

    Published 2021-01-01
    “…To study waterborne frost heaving failure mechanism of coal gangue ceramsite concrete (CGCC) under freeze-thaw cycles, capillary water absorption test, nonmetallic ultrasonic testing test, low-field nuclear magnetic resonance (LNMR) test, N2 adsorption test, and other tests were used to determine the effect of freeze-thaw cycles on the porosity, relative dynamic elastic modulus (RDM), and capillary adsorption rate of different coal gangue ceramsite (MT) replacement rates (0, 20%, 40%, and 60%). …”
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  19. 19

    Experimental Study on the Damage and Degradation Characteristics of Red Sandstone after Dry and Wet Cycling by Low Magnetic Field Nuclear Magnetic Resonance (NMR) Technique by Yuan Zhao, Jiangteng Li, Gang Ma

    Published 2021-01-01
    “…To study the damage evolution of rocks under the action of wet and dry cycles, nuclear magnetic resonance (NMR) technology was used to test red sandstone under different times of wet and dry cycles. …”
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  20. 20

    A simple and highly efficient protocol for 13C-labeling of plant cell wall for structural and quantitative analyses via solid-state nuclear magnetic resonance by Tasleem Javaid, Akshayaa Venkataraghavan, Matrika Bhattarai, Debkumar Debnath, Wancheng Zhao, Tuo Wang, Ahmed Faik

    Published 2025-01-01
    “…The 13C-based multi-dimensional solid-state nuclear magnetic resonance (ssNMR) has been instrumental in revealing the structural information of plant cell walls through 2D and 3D correlation spectral analyses. …”
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    Article