Showing 61 - 80 results of 340 for search '"Nuclear magnetic resonance"', query time: 0.04s Refine Results
  1. 61

    NEW SELENATO TRIPHENYLTIN (IV) AND TRIMETHYLTIN (IV) DERIVATIVES: SYNTHESIS, INFRARED AND NMR STUDIES by WALY DIALLO, LIBASSE DIOP

    Published 2017-06-01
    “… Five derivatives of general formulae [cation] [SeO4SnR3] (R = Ph, Me) have been studied by infrared (IR) and nuclear magnetic resonance (NMR) spectroscopy. The suggested structures are infinite chains or oligomers, the environment around the tin centre being trans trigonal bipyramidal, the phenyl and methyl substituants occupying equatorial positions, the selenate anion behaving as a bridging bidentate ligand and occupying the apical positions. …”
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  2. 62

    Meningioma of Lumbar Localization in a Patient with Human Immunodeficiency Virus by Jorge Luis Acevedo Cardoso, Yoniel Suárez Guerrero, Samuel Sánchez Sánchez

    Published 2017-04-01
    “…On physical examination there was decreased muscular strength and hypoesthesia in lower limbs. In nuclear magnetic resonance, a rounded isointense image was observed within the medullar canal at L2 level. …”
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  3. 63

    Synthesis, Characterization, and Thermokinetic Analysis of New Epoxy Sugar Derivative by Selinay Y. Erişkin, Fatma Ç. Telli, Yeliz Yıldırım, Yeşim Salman

    Published 2014-01-01
    “…The synthesized compounds 1 and 2 were characterized by nuclear magnetic resonance (1H-NMR), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TG). …”
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  4. 64

    Time-resolved compositional and dynamics analysis of biofilm maturation and dispersal via solid-state NMR spectroscopy by Yi Xue, Xue Kang

    Published 2025-01-01
    “…Here, we employed solid-state nuclear magnetic resonance (NMR) techniques to achieve time-resolved characterization of Bacillus subtilis biofilms over a 5-day period. …”
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  5. 65

    Synthesis and Characterization of Imide Containing Hybrid Epoxy Resin with Improved Mechanical and Thermal Properties by U. G. Rane, A. A. Sabnis, V. V. Shertukde

    Published 2014-01-01
    “…Phosphorous containing amine, tripropyldiamine phosphine oxide (TPDAP), and hybrid monomer 4-(N-phthalimidophenyl) glycidylether (PPGE) were synthesized and characterized by Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, and elemental analysis (EDX). …”
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  6. 66

    Pyrolysis of Table Sugar by Adnan Bulut, Selhan Karagöz

    Published 2013-01-01
    “…The composition of bio-oils extracted with diethyl ether was identified by means of gas chromatography mass spectrometry (GC-MS), nuclear magnetic resonance (1H-NMR), and Fourier transform infrared spectroscopy (FTIR). …”
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  7. 67

    Study on Prediction Model of Mechanical Parameters of Rock Frozen-Thawed Damage based on NMR Technology by Yanzhi Tai

    Published 2022-01-01
    “…In order to establish prediction models for the mechanical parameters of rock freeze-thaw damage based on nuclear magnetic resonance (NMR) technology, with reference to the laboratory test of rock mechanical parameters after freeze-thaw, combined with low-field NMR and multivariate analysis methods, PLSR and PCR prediction models for the peak stress, peak strain, and elastic modulus of frozen-thawed rocks were established. …”
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  8. 68

    Extraction and Characterization of Natural Dye from Green Walnut Shells and Its Use in Dyeing Polyamide: Focus on Antibacterial Properties by Mohammad Mirjalili, Loghman Karimi

    Published 2013-01-01
    “…The color components extracted and isolated from walnut shells were characterized by column chromatography, thin layer chromatography (TLC), nuclear magnetic resonance (NMR), mass spectroscopy (MS), and infrared (IR) techniques. …”
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  9. 69

    Recent Advances in Electrochemical Glycobiosensing by Germarie Sánchez-Pomales, Rebecca A. Zangmeister

    Published 2011-01-01
    “…Although the prevalent methods of glycan analysis (high-performance liquid chromatography, mass spectrometry, and nuclear magnetic resonance spectroscopy) provide detailed identification and structural analysis of glycan species, there are significantly few low-cost, rapid glycan assays available for diagnostic and screening applications. …”
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  10. 70

    Comprehension of paraquat adsorption on faujasite zeolite X and Y in sodium form by Wina Rongchapo, Chalermpan Keawkumay, Nattawut Osakoo, Krittanun Deekamwong, Narong Chanlek, Sanchai Prayoonpokarach, Jatuporn Wittayakun

    Published 2018-02-01
    “…The bare and paraquat-containing zeolites (PQX and PQY) were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, N 2 adsorption–desorption analysis, magic-angle spinning nuclear magnetic resonance (MAS) NMR, and X-ray photoelectron spectroscopy. …”
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  11. 71

    Damage and restoration of historical urban walls: literature review and case of studies by Mauro Sassu, Aida Safabakhsh

    Published 2023-07-01
    “…Various non-destructive methods were employed to measure moisture and monitor the materials involved, including Infrared Thermography, Electrical Resistivity Tomography, Ground Penetrating Radar, Laser Scanning and Digital Terrestrial Photogrammetry, Global Navigation Satellite Systems, Unilateral Nuclear Magnetic Resonance, Laser-Induced Fluorescence technique, Acoustic Imaging and Acoustic Tomography, Geographic Information System, on-site survey process and computer modeling of the structure with specific FEM software. …”
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  12. 72

    Synthesis of Poly[APMA]-DOTA-Cu Conjugates for Interventional Radionuclide Therapy of Prostate Cancer: Assessment of Intratumoral Retention by Micro–Positron Emission Tomography by Jianchao Yuan, Yezi You, Xin Lu, Otto Muzik, David Oupicky, Fangyu Peng

    Published 2007-01-01
    “…The polymers were characterized with nuclear magnetic resonance, size exclusion chromatography, and dynamic light scattering ( M n 5 2.40 × 10 4 , M w / M n = 1.87). …”
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  13. 73

    Effect of CaO on the Autogenous Shrinkage of Alkali-Activated Slag Mortar by Dengdeng Zheng, Tao Ji, Guojie Wang

    Published 2021-01-01
    “…The hydration products of the pastes were determined by Fourier transform-infrared, thermogravimetric analysis, X-ray diffraction, and 29Si solid-state magic-angle spinning nuclear magnetic resonance. The results show that the amount of portlandite increases as CaO content increases. …”
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  14. 74

    Synthesis of Fe-MCM-41 Using Iron Ore Tailings as the Silicon and Iron Source by Xin Li, Honghao Yu, Yan He, Xiangxin Xue

    Published 2012-01-01
    “…X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), diffuse reflectance UV-visible spectroscopy, 29Si magic-angle spinning (MAS) nuclear magnetic resonance (NMR), and nitrogen adsorption/desorption were used to characterize the samples. …”
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  15. 75

    Polymer Electrolyte Membrane Fuel Cell Performance of a Sulfonated Poly(Arylene Ether Benzimidazole) Copolymer Membrane by Hasan Ferdi Gerçel, Çağla Gül Tosun, Levent Akyalçın

    Published 2016-01-01
    “…Structures of monomers and copolymer were confirmed by proton nuclear magnetic resonance spectroscopy (1H NMR) and Fourier transform infrared (FTIR) spectroscopy analyses. …”
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  16. 76

    Synthesis, Characterization, and Flocculation Properties of Branched Cationic Polyacrylamide by Weimin Sun, Guangcheng Zhang, Ling Pan, Helin Li, Aihua Shi

    Published 2013-01-01
    “…The resulting copolymer was characterized by the use of Fourier-transform infrared (FTIR) spectroscopy and nuclear magnetic resonance (NMR) spectroscopy. Its flocculation properties were evaluated with standard jar tests of sewage. …”
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  17. 77

    Experimental Investigation on Influence of Acidic Dry-Wet Cycles on Karst Limestone Deterioration and Damage by Yan Zhang, Zicheng Wang, Guoshao Su, Zhekang Wu, Fengtao Liu

    Published 2022-01-01
    “…This was accomplished by performing nuclear magnetic resonance (NMR) measurements and inductively coupled plasma atomic emission spectrometer measurements on the limestone samples. …”
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  18. 78

    Density Functional Theory Study on Conformers of Benzoylcholine Chloride by Mustafa Karakaya, Fatih Ucun, Ahmet Tokatlı

    Published 2013-01-01
    “…The comparison of the experimental and calculated infrared (IR), Raman, and nuclear magnetic resonance (NMR) spectra has indicated that the experimental spectra are formed from the superposition of the spectra of two lowest energy conformers of the compound. …”
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  19. 79

    Tin(IV) Complexes of Schiff Base Derived from Amino Acid: Synthesis and Characteristic Spectral Studies by Robina Aman, Garima Matela

    Published 2013-01-01
    “…An attempt has been made to prove the structure of the resulting complexes on the basis of elemental analysis, IR, 1H nuclear magnetic resonance. The binding site of the ligand was identified by IR spectroscopic measurement. …”
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  20. 80

    Preparation of [C60]Fullerene Nanowhisker-gold Nanoparticle Composites and Reduction of 4-Nitrophenol through Catalysis by Jeong Won Ko, Jiulong Li, Weon Bae Ko

    Published 2015-12-01
    “…The product of the nanocomposites was characterized by X-ray diffraction, scanning electron microscopy, Raman spectroscopy, transmission electron microscopy, and solid- state 13C-nuclear magnetic resonance spectroscopy. The catalytic activity of the [C60]fullerene nanowhisker-gold nanoparticle composites was confirmed in 4-nitrophenol reduction by UV-vis spectroscopy.…”
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