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121
A Comparison of the Physicochemical Properties and Fatty Acid Composition of Indaiá (Attalea dubia) and Babassu (Orbignya phalerata) Oils
Published 2012-01-01“…The oil was also analyzed using infrared and nuclear magnetic resonance spectroscopy. The fatty acid profile of the oil was determined by GC-MS. …”
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122
A digital platform for automated analysis of 1H NMR data: prototype framework of digital reference standard
Published 2025-01-01“…Abstract This study introduces an innovative approach to automatically analyzing 1H nuclear magnetic resonance (NMR) data, integrating a quantum mechanical spectral analysis (QMSA) to enhance efficiency over manual data analysis in NMR. …”
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123
Bioactive sorbicillinoid derivatives from an endophytic fungus Trichoderma citrinoviride
Published 2025-01-01“…Their structures were elucidated through extensive analyses of spectroscopic data, computer-assisted structure elucidation (ACD/Structure Elucidator), density functional theory (DFT) calculations of the nuclear magnetic resonance (NMR) spectra, and electronic circular dichroism (ECD). …”
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124
Purification, structural elucidation, and in vitro antitumor effects of novel polysaccharides from Bangia fuscopurpurea
Published 2021-01-01“…The structural characteristics of BFP-3 were investigated by chemical and spectroscopic methods, including partial acid hydrolysis, methylation analysis, one- and two-dimensional nuclear magnetic resonance, and gas chromatography-mass spectrometry. …”
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125
Deciphering Metabolic Responses in Traumatic Brain Injury Patients With Different Severity Using 1H NMR-Based Serum Metabolomics
Published 2025-01-01“…In order to elucidate the underlying pathophysiologic mechanisms and identify serum biomarkers associated with TBI, we conducted a comprehensive investigation utilizing a 1H nuclear magnetic resonance (NMR)–based metabolomics approach and ELISA analysis of serum samples obtained within 24 h postinjury from a cohort of participants with varying degrees of TBI severity. …”
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126
Blasting-Induced Permeability Enhancement of Ore Deposits Associated with Low-Permeability Weakly Weathered Granites Based on the Split Hopkinson Pressure Bar
Published 2018-01-01“…By combining nuclear magnetic resonance (NMR) and triaxial seepage tests, this study investigated the change laws in the mechanical properties, porosity evolution, and permeability coefficients of the samples under cyclic impacts. …”
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127
Effect of Bentonite Prehydration Time on the Stability of Lightweight Oil-Well Cement System
Published 2021-01-01“…Density measurements and pore space analysis with the nuclear magnetic resonance (NMR) technique were used to investigate the homogeneity of cement-based cores. …”
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128
Benchtop 1H NMR spectroscopy as a practical tool for characterization of chemically ex-changing systems in Ascorbic acid
Published 2021-03-01“…Nuclear magnetic resonance (NMR) spectra and its action on characterization of pH dependent systems are among the most useful tools in spectroscopic techniques. …”
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129
A Promising Material by Using Residue Waste from Bisphenol A Manufacturing to Prepare Fluid-Loss-Control Additive in Oil Well Drilling Fluid
Published 2013-01-01“…Fourier transform infrared (FTIR) spectroscopy, gas chromatography-mass spectrometry (GC-MS), and nuclear magnetic resonance (NMR) were used to characterize the residues. …”
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130
Time-Varying Compressive Strength Model of Aeolian Sand Concrete considering the Harmful Pore Ratio Variation and Heterogeneous Nucleation Effect
Published 2019-01-01“…Influence mechanism of aeolian sand on the strength of concrete was revealed by using the nuclear magnetic resonance (NMR) to analyze the pore ratio and structures of aeolian sand concrete (ASC) and using the X-ray single crystal diffraction (XRD) to calculate the relative contents of hydration products semiquantitatively. …”
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131
Method of Calculating Secondary Porosity of Reef Limestone Reservoir by Casting Thin Section Calibrating Nuclear Magnetic T2 Spectrum
Published 2021-01-01“…We present a new method for calculating secondary porosity of reef limestone reservoir by the nuclear magnetic resonance T2 spectrum which is calibrated by casting thin section. …”
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132
Identification of Imitation Cheese and Imitation Ice Cream Based on Vegetable Fat Using NMR Spectroscopy and Chemometrics
Published 2013-01-01“…In this study, 400 MHz nuclear magnetic resonance (NMR) spectroscopy of the fat fraction of the products was used in the context of food surveillance to validate the labeling of milk-based products. …”
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133
Self-Healing Photocurable Epoxy/thiol-ene Systems Using an Aromatic Epoxy Resin
Published 2016-01-01“…The oligomer was characterized by Fourier transform infrared spectroscopy (FTIR), Raman and nuclear magnetic resonance spectroscopies, and gel permeation chromatography (GPC). …”
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134
(5E,7E)-4,5,6 Trihydroxy-3-(hydroxymethyl)tetrahydro-2H-pyran-2-ylheptadeca-5,7-dienoate from Euclea crispa (L.) Inhibits Ovarian Cancer Cell Growth by Controlling Apoptotic and Me...
Published 2022-01-01“…Further, the compound was confirmed by spectroscopic techniques such as ultraviolet-visible (UV/Vis) spectrometer, Fourier transform infrared (FTIR) spectrometer, and 1H and 13C nuclear magnetic resonance (NMR). Compound 2 exhibited a significant antioxidant activity with IC50 values. …”
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135
Macro-Micro Study on Mechanical Properties of Frozen Fine Sandstone Based on DEM Mathematical Model
Published 2022-01-01“…Furthermore, the nuclear magnetic resonance (NMR) technology was used to obtain pore distribution of the freezing sandstone. …”
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136
Enhancement of Lignin Biopolymer Isolation from Hybrid Poplar by Organosolv Pretreatments
Published 2014-01-01“…The isolated lignin fractions were characterized by Fourier transform infrared spectroscopy (FT-IR), high-performance anion exchange chromatography (HPAEC), 2D nuclear magnetic resonance (2D NMR), and thermogravimetric analysis (TGA). …”
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137
Experimental Investigation into the Effects of Fracturing Fluid-Shale Interaction on Pore Structure and Wettability
Published 2021-01-01“…In this study, the pore structure and fluid distribution of shale samples were analyzed by utilizing low-pressure liquid nitrogen adsorption (LP-N2GA) and nuclear magnetic resonance (NMR). The fractal analysis showed that the pore structure of the sample was strongly heterogeneous. …”
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138
A New Method for Artificial Core Reconstruction of a Fracture-Control Matrix Unit
Published 2020-01-01“…Finally, the porosity, permeability, and wettability of the matrix system and the T2 spectra from nuclear magnetic resonance (NMR) before and after reconstruction are measured. …”
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139
Experimental Research on the Impact of Ion Exchange and Infiltration on the Microstructure of Rare Earth Orebody
Published 2017-01-01“…To detect the evolutional characteristics of pore structure in ore leaching process of ion-type rare earth, this paper analyzes the influence mechanism of ion exchange seepage action on the microstructure of orebody, and an experiment for remodeling rare earth saturated samples and ore leaching was designed. Using nuclear magnetic resonance technology obtains the pore structure T2 map of H2O and (NH4)2SO4 solution in the ore leaching process and inverts and reconstitutes the pore structure distribution image. …”
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140
Potential of glycerol as a bio-based wood adhesive
Published 2025-02-01“…Ether linkages were detected by Fourier transform infrared spectroscopy and heteronuclear single quantum coherence nuclear magnetic resonance spectroscopy. Our results demonstrated that good adhesiveness is achieved by ether linkages resulting from the chemical reaction between glycerol and wood powder.…”
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