Showing 2,941 - 2,960 results of 4,095 for search '"spectroscopy"', query time: 0.06s Refine Results
  1. 2941

    Theoretical Study of the Structural and Electronic Properties of NIPAM Polymer Dosimetry Gel by Swait S. Mohammed, Israa F. Al-sharuee, Akram Mohammed Ali, Adil Elrayah

    Published 2024-12-01
    “…Methods: An examination of the structure of a dosimetry gel polymer of type N- sopropylacrylamide (NIPAM) was carried out with the assistance of the Gaussian 09 software, the Fourier Transform Infrared Spectrometer (FTIR), the proton and carbon nuclear magnetic resonance (H NMR-C NMR), and the ultraviolet-visible spectroscopy (UV-vis) approach were used. The molecular geometry was determined using density functional theory (DFT) (B3LYP) and computational means. …”
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  2. 2942

    Time-domain signatures of distinct correlated insulators in a moiré superlattice by Eric A. Arsenault, Yiliu Li, Birui Yang, Takashi Taniguchi, Kenji Watanabe, James C. Hone, Cory R. Dean, Xiaodong Xu, X.-Y. Zhu

    Published 2025-01-01
    “…Here, we use pump-probe spectroscopy to show distinct time-domain signatures of correlated insulators at fillings of one (ν = −1) and two (ν = −2) holes per moiré unit cell in the angle-aligned WSe2/WS2 system. …”
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  3. 2943

    An Alternative Approach for Improving Performance of Organic Photovoltaics by Light-Enhanced Annealing by En-Ping Yao, Chiu-Sheng Ho, Chang Yu, E-Ling Huang, Ying-Nan Lai, Wei-Chou Hsu

    Published 2014-01-01
    “…Better crystallization and a higher degree of molecular order in the thermal/laser coannealed P3HT-based BHJ film were observed through X-ray diffraction and Raman spectroscopy.…”
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  4. 2944

    Characterization of Ghanaian clays as raw materials for the synthesis of ZSM-5 zeolite by Benjamin K. Kokloku, Johannes A.M. Awudza, Michael B. Mensah, Mizpah A.D. Rockson, Francis Kemausuor

    Published 2025-03-01
    “…Powder-X-ray Diffraction (p-XRD), X-ray fluorescence (XRF), Fourier Transform Infrared spectroscopy (FTIR), and Thermogravimetric Analysis/Differential Scanning Calorimetry (TGA-DSC) were used to characterize the clay samples. …”
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  5. 2945

    Microplastic and human health with focus on pediatric well-being: a comprehensive review and call for future studies by Rogers Wainkwa Chia, Ntegang Venant Atem, Jin-Yong Lee, Jihye Cha

    Published 2025-01-01
    “…Finally, MPs in children were quantified using stereomicroscopy and characterized using micro-Fourier transform infrared spectroscopy.…”
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  6. 2946

    Enhancement of Sansevieria Trifasciata Laurentii Fiber Properties with Liquid Smoke Treatment by Mukhlis Muslimin, Willy Artha Wirawan, Mohammad Muzni Harbelubun, Abdul Rifais Mujawal, R. A. Ilyas, Mohd Nor Faiz Norrrahim, Victor Feizal Knight

    Published 2025-12-01
    “…The treated fibers were characterized by single-fiber tensile strength, morphology, chemical composition, X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). The results show that treating STLF fibers with liquid Smoke (LS) for 2 hours results in a 2.60% increase in tensile strength and a 64.20% improvement in crystallinity compared to untreated fibers (TP). …”
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  7. 2947

    Quantitative Analysis of Flavonoids in Glycyrrhiza uralensis Fisch by 1H-qNMR by Ping Yu, Qian Li, Yanmei Feng, Yuying Chen, Sinan Ma, Xiaoqin Ding

    Published 2021-01-01
    “…It lays a foundation for the study on the determination of flavonoids content in licorice by proton nuclear magnetic resonance spectroscopy.…”
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  8. 2948
  9. 2949

    The Effect of Zeolite Na-X and Clinoptilolite as Functional Fillers on the Mechanical, Thermal and Barrier Properties of Thermoplastic Polyurethane by Nello Russo, Letizia Verdolotti, Giuseppe Cesare Lama, Federica Recupido, Barbara Liguori, Maria Oliviero

    Published 2025-01-01
    “…Finally, the obtained films were characterized by Fourier Transform Spectroscopy (FT-IR, ATR), thermal analysis (TGA and DSC), frequency sweep test, scanning electron microscopy (SEM), mechanical tensile test and oxygen permeability test. …”
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  10. 2950

    Determination of Volatile Compounds in Foxtail Millet Sake Using Headspace Solid-Phase Microextraction and Gas Chromatography-Mass Spectrometry by Jingke Liu, Wei Zhao, Shaohui Li, Aixia Zhang, Yuzong Zhang, Songyan Liu

    Published 2015-01-01
    “…The volatile compounds in foxtail millet sake were extracted by headspace solid-phase microextraction (HS-SPME) and analyzed using gas chromatography-mass spectroscopy (GC-MS). Different methods of sample preparation were used to optimize this method (SPME fiber types, sample amount, extraction time, extraction temperature, content of NaCl, and rotor speed). …”
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  11. 2951

    Properties of Pickering Stabilized Associative Water‐In‐Water Emulsions Based on Ultra‐High Molecular Weight Polyacrylamides by Rafael B. Lira, Alexander Plucinski, YouBeen Ko, Niamh Bayliss, Chris vanEwijk, Wouter H. Roos, Bernhard V. K. J. Schmidt

    Published 2025-02-01
    “…The system is investigated using a combination of fluorescence microscopy and spectroscopy techniques. The system phase‐separates into aqueous droplets at very low polymer concentrations and exhibits intriguing physical properties. …”
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  12. 2952

    Investigation of dissolution resistance of blank and gas-nitrided carbon steels in stationary SAC305 solder alloy melt by Benke M., Salyi Zs., Kaptay G.

    Published 2018-01-01
    “…Evidences of dissolution reactions and other degradation processes were searched for using scanning electron microscopy and energy dispersive X-ray spectroscopy. It was observed that no Fe dissolution occurred between the samples and stationary SAC305 solder melt during continuous tests with durations up to 20 days. …”
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  13. 2953

    PEDOT:PSS polymer functionalized carbon nanotubes integrated with graphene oxide and titanium dioxide counter electrode for dye-sensitized solar cells by A M Mahmudul Hasan, Md. Abu Bin Hasan Susan

    Published 2025-02-01
    “…The reduced agglomeration facilitates efficient electron transport pathways as characterized by the electrochemical impedance spectroscopy (EIS) and electron imaging techniques. Among the 3 studied quaternary composites the 2:1:1 ratio of f-MWCNT/Nr-GO/TiO2 (composite-1) shows a superior performance with a charge transfer resistance (RCT) of 7.27 Ω cm2 and a cathodic peak current density (JPC) of −17.08 mA cm−2. …”
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  14. 2954

    The Electropolishing of C-Steel in Orthophosphoric Acid Containing Methanolic Plant Extract by Asia A. Taha, Fatma M. Abouzeid, Mohamed M. Elsadek, Yasmeen M. Othman

    Published 2020-01-01
    “…Surface morphologies, roughness, and reflection of investigated specimens were inspected with a scanning electron microscope (SEM), profilometry, and Vis-IR spectroscopy. Addition of methanolic plant extract to the electropolishing solution results in a lower limiting current. …”
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  15. 2955

    The effect of the amount of Y2O3 doped to the MA6000 alloy produced by mechanical alloying method on wear behavior by Çelik Ş., Özyürek D., Tunçay T.

    Published 2022-01-01
    “…Sintered MA6000- X% Y2O3 superalloys were characterized by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD) analysis, density, and hardness measurements. …”
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  16. 2956

    The Pear Aroma in the Austrian Pinot Blanc Wine Variety: Evaluation by Means of Sensorial-Analytical-Typograms with regard to Vintage, Wine Styles, and Origin of Wines by Christian Philipp, Phillip Eder, Walter Brandes, Elsa Patzl-Fischerleitner, Reinhard Eder

    Published 2018-01-01
    “…In this study, a valid stable isotope dilution assay headspace solid-phase microextraction gas chromatography mass spectroscopy (SIDA-HS-SPME-GC-MS) method was developed for the analysis of these compounds, and 102 Austrian Pinot blanc wines of vintages 2013–2016 were analysed. …”
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  17. 2957

    Development of a high-performance pseudocapacitive composite via electroless deposition of silver nanoparticles on micro-sized silicon by Sakshi Juyal, Abhilasha Mishra, Ankur Jain, Kriti Shrivastawa, Aditya Singh, Monika Dumka, Fateh Singh Gill, Mohit Bajaj, Ievgen Zaitsev

    Published 2024-12-01
    “…SEM investigation revealed complete encapsulation of silicon flakes by AgNP’s dendritic structure, EDX confirmed the deposition of Ag on Si flakes. Raman spectroscopy confirmed the formation of silver and silicon oxides. …”
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  18. 2958

    Development and Characterization of a New Solid Polymer Electrolyte for Supercapacitor Device by Theodore Azemtsop Manfo

    Published 2023-01-01
    “…The ionic conductivity of the generated polymer electrolytes is examined using electrochemical impedance spectroscopy (EIS). The high-ion conducting PE of 5.06 × 10−3 S·cm−1 was found with the mixture MC + 50 wt% NaI + 10 wt% EC (room temperature). …”
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  19. 2959

    Biochar as a waste management strategy for cadmium contaminated cocoa pod husk residues by Diego Armando Pinzon-Nuñez, Carlos Alberto Adarme-Duran, Luz Vargas-Fiallo, Nelson Rodriguez-Lopez, Carlos Alberto Rios-Reyes

    Published 2022-03-01
    “…Macro and micronutrients (Mg, K, Zn, Fe, Cu, Zn, Mn, and Na), and Cd were measured by atomic absorption spectroscopy (AAS). Sorption experiments and soil incubation experiments for two months were also carried out looking for an application of CPH materials in Cd sorption and remediation.Results Pyrolysis showed more effectiveness for Cd reduction in cocoa pod husk waste (90%) than composting (66%), 700 ℃ was the optimal temperature. …”
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  20. 2960

    Antioxidative Activity and Volatile Profiles of Maillard Reaction Products between Giant Salamander (Andrias davidianus) Peptides and Glucose during the Heating Process by Wenqian Wang, Shibo Zhao, Jinjin Pei, Pengfei Jiang, Wengang Jin, Ruichang Gao

    Published 2023-01-01
    “…The difference in volatile compounds of the MRPs was also analyzed by gas chromatography-ion mobility spectroscopy. The results indicated that the pH value of the MRPs shrank with the proceeding of heating time, while the browning extent and antioxidative capacity increased. 58 volatile compounds including 24 aldehydes, 12 alcohols, 8 esters, 5 ketones, 4 pyrazines, 2 furans, 1 pyridine, 1 ether, and 1 olefin were detected among the MRPs. …”
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