Showing 3,601 - 3,620 results of 4,095 for search '"spectroscopy"', query time: 0.08s Refine Results
  1. 3601

    Non‐Volatile Resistive Switching in Nanoscaled Elemental Tellurium by Vapor Transport Deposition on Gold by Sara Ghomi, Christian Martella, Yoonseok Lee, Penny Hui‐Ping Chang, Paolo Targa, Andrea Serafini, Davide Codegoni, Chiara Massetti, Sepideh Gharedaghi, Alessio Lamperti, Carlo Grazianetti, Deji Akinwande, Alessandro Molle

    Published 2025-01-01
    “…In addition, formation of conductive paths leading to resistive switching behavior on the gold substrate is driven by gold‐tellurium interface reconfiguration during the VTD process as revealed by energy electron loss spectroscopy analysis. These findings reveal the potential of nanoscaled tellurium as a versatile and scalable material for neuromorphic computing and underscore the influential role of gold electrodes in enhancing its memristive performance.…”
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  2. 3602

    Diet Control and Swimming Exercise Ameliorate HFD-Induced Cognitive Impairment Related to the SIRT1-NF-κB/PGC-1α Pathways in ApoE-/- Mice by Wei Wei, Zhicheng Lin, PeiTao Xu, Xinru Lv, Libin Lin, Yongxu Li, Yangjie Zhou, Taotao Lu, Xiehua Xue

    Published 2023-01-01
    “…The levels of fractional anisotropy (FA), N-acetylaspartate (NAA)/creatine (Cr) ratio, choline (Cho)/Cr ratio, and myo-inositol (MI)/Cr ratio in the hippocampus were evaluated by diffusion tensor imaging (DTI) and magnetic resonance spectroscopy (MRS) using 7.0-T magnetic resonance imaging (MRI). …”
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  3. 3603

    Cognitive improvement and prefrontal network interactions in individuals with remitted bipolar disorder after transcranial infrared laser stimulation by Douglas W. Barrett, Roger E. Davis, Jennifer E. Siegel-Ramsay, Amy Bichlmeier, Jorge R. C. Almeida, F. Gonzalez-Lima

    Published 2025-01-01
    “…Changes in PFC network interactions were measured with functional near-infrared spectroscopy (fNIRS) because this method can measure TILS effects on oxygen metabolism in the PFC of individuals with BD.ResultsParticipants reported no adverse effects from treatment, confirming the safety of this intervention in individuals with BD. …”
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  4. 3604

    Extraction of Saponins from Xanthoceras sorbifolium Bunge Leaves Using Deep Eutectic Solvents and Their Inhibitory Activity against Postharvest Pathogenic Fungi by Xue LI, Xinyu CHU, Erzheng SU, Jiahong WANG

    Published 2025-02-01
    “…The mechanism of XLs saponins extraction by DES was investigated by scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). Furthermore, the inhibitory effects of XLs saponins on six typical fungi that posed a threat to fruits and vegetables were evaluated. …”
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  5. 3605

    Chitosan nano-formulation enhances stability and bactericidal activity of the lytic phage HK6 by Hasnaa R. Temsaah, Karim Abdelkader, Amr E. Ahmed, Nada Elgiddawy, Zienab E. Eldin, Hend Ali Elshebrawy, Nahed Gomaa Kasem, Fatma A. El-Gohary, Ahmed. F. Azmy

    Published 2025-01-01
    “…Fourier-transform infrared spectroscopy (FT-IR) reveals shifts towards higher wavenumbers and a new peak, indicating amide bond formation and successful phage encapsulation. …”
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  6. 3606
  7. 3607

    Fast Rate Production of Biodiesel from Neem Seed Oil Using a Catalyst Made from Banana Peel Ash Loaded with Metal Oxide (Li-CaO/Fe2 (SO4)3) by Ismail J. Madai, Yusufu Abeid Chande Jande, Thomas Kivevele

    Published 2020-01-01
    “…Decomposition profile of CBA was displayed by thermal gravimetric analysis (TGA), whereas in-depth analysis by scanning electron microscope (SEM), X-ray diffraction (XRD), X-ray fluorescence (X-RF), and Fourier-transform infrared spectroscopy (FT-IR) revealed that the high efficiency displayed by a catalyst from banana ash calcined at 650°C was due to the presence of potassium carbonate (K2CO3), a calcium magnesium silicate (CaMgSiO4), and potassium sodium sulphate (KNaSO4) contents that accounted for the high basicity of up to 11.09. …”
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  8. 3608

    The Study’s Chemical Interaction of the Sodium Silicate Solution with Extender Pigments to Investigate High Heat Resistance Silicate Coating by Cuong Manh Le, Thu-Huong Le

    Published 2021-01-01
    “…The effect of curing time on the chemical interaction between sodium silicate solution and extender pigments (ZnO, TiO2, Fe2O3, CaCO3, and Na2SiF6) was investigated by Fourier transform infrared spectroscopy (FT-IR), thermal gravimetric analysis (TGA), and X-ray diffraction (XRD). …”
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  9. 3609

    Dynamic Hydrogen Production from Methanol/Water Photo-Splitting Using Core@Shell-Structured CuS@TiO2 Catalyst Wrapped by High Concentrated TiO2 Particles by Younghwan Im, Sora Kang, Kang Min Kim, Taeil Ju, Gi Bo Han, No-Kuk Park, Tae Jin Lee, Misook Kang

    Published 2013-01-01
    “…Cyclic voltammetry and UV-visible absorption spectroscopy confirmed that the CuS in CuS@TiO2 strongly withdraws the excited electrons from the valence band in TiO2 because of the higher reduction potential than TiO2, resulting in a slower recombination rate between the electrons and holes and higher photoactivity.…”
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  10. 3610

    Mechanical properties and microscopic damage characteristics of coal series limestone under coupling effects of high temperature and impact by Peng Wu, Lianying Zhang, Bing Li, Yadong Zheng, Ming Li, Fuqiang Zhu

    Published 2024-12-01
    “…In this study, the impact tests (impact velocities of 6.0–10.0 m/s) on coal-series limestone under real-time high-temperature conditions (25 °C-800 °C) were conducted by the real-time high-temperature split Hopkinson pressure bar (HT-SHPB) testing system, and the microscopic changes in mineral composition under the coupling effect of real-time high-temperature and high strain rate action were investigated by X-ray diffraction (XRD), electron scanning microscopy (SEM), energy dispersive spectroscopy (EDS). The results showed that the dynamic stress-strain curve of coal-series limestone under the real-time coupling effect of high temperature and impact during the compaction stage was not significant; As the impact velocity increases and the temperature increases, the plastic characteristics of the dynamic stress-strain curve become more notable, and the brittle failure of the sample is gradually changed into brittle-ductile failure. …”
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  11. 3611

    Development of a Dual-Targeted Oral Delivery System for Mesalazine and Acetaminophen by Fatemeh Soltani, Reihaneh Arghand, Ghazaleh Mehdipour, Hossein Shahdadi Sardou, Ali Mohammadi, Abbas Akhgari

    Published 2024-12-01
    “…Thermal analysis, infrared spectroscopy, mechanical testing and scanning electron microscopy were performed to evaluate the physicochemical properties and investigate potential interactions. …”
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  12. 3612

    Prospective study of change in liver function and fat in patients with colorectal liver metastases undergoing preoperative chemotherapy: protocol for the CLiFF Study by Katharine Cresswell, Juan W Valle, Michael Braun, Kat L Parmar, Derek O'Reilly, Jo H Naish, Steve R Williams, William K Lloyd, Lee Malcomson, Colin Bamford, Andrew G Renehan

    Published 2020-09-01
    “…Here, we will use a novel test of liver function (the liver maximum capacity (LiMAx) test), and measure liver fat using MRI.Methods and analysis This prospective study will assess changes in liver function longitudinally, measured by the LiMAx test, and liver fat, measured by advanced MRI using both MR spectroscopy and the modified Dixon method, in up to 35 patients undergoing preoperative chemotherapy for CLM. …”
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  13. 3613

    Fluid Origin and Evolution of the Roc Blanc Silver Deposit (Jebilet Massif, Variscan Belt, Morocco): Constraints from Geology and Fluid Inclusions by Amal El Arbaoui, Ismaïla N’Diaye, Zaineb Hajjar, Amina Wafik, Abdelhak Boutaleb, Said Ilmen, Abderrahim Essaifi, Mohammed Bouabdellah

    Published 2022-01-01
    “…Three types of fluid inclusions have been recognized in silver mineralisation bearing quartz veins according to petrographic investigations, microthermometry, and Raman spectroscopy studies: (i) liquid-rich H2O-N2-CH4±CO2-(salt) fluid inclusions (type 1), (ii) vapour-rich H2O-CO2-CH4-N2-(salt) fluid inclusions (type 2), and (iii) aqueous H2O-(salt) fluid inclusions (type 3). …”
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  14. 3614

    Role of the very low frequencies of the renal oxygen saturation signal in acute kidney injury in newborns with perinatal asphyxia by Daniel Botero-Rosas, Sergio Agudelo-Pérez, Sergio Agudelo-Pérez, Gloria Troncoso, Maria C. Gómez, Eduardo Tuta-Quintero

    Published 2025-01-01
    “…The power of the very low-frequency component in the FFT was assessed by analyzing renal oxygen saturation using near-infrared spectroscopy (NIRS), focusing on a frequency band of approximately 0.01 Hz. …”
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  15. 3615

    Functionalization of collagen fiber with nano-islands of silver via atomic layer deposition to promote bone healing by Sarah Hashemi Astaneh, Leonardo P. Faverani, Harshdeep Bhatia, Eduardo Dallazen, Monique Gonçalves Costa, Edilson Ervolino, Valentim A.R. Barão, Cortino Sukotjo, Christos G. Takoudis

    Published 2025-02-01
    “…Chemical and morphological changes of the collagen membrane were investigated with X-ray photoelectron spectroscopy and scanning electron microscopy and the bioactivity of functionalized collagen with silver was studied in vitro and in vivo. …”
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  16. 3616

    Comparison of dark and milk cocoa toppings produced by a five-roll mill and a ball mill by Stožinić Milica, Popović Tijana, Lončarević Ivana, Pajin Biljana, Zarić Danica, Nikolić Ivana, Petrović Jovana

    Published 2024-01-01
    “…The near-infrared spectroscopy (NIRS) analysis did not show any significant difference among the samples. …”
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  17. 3617

    Monitoreo mediante EIS del acero embebido en un concreto de escoria activada alcalinamente expuesto a carbonatación EIS monitoring of embedded steel in alkali activated concrete ex... by Willian Aperador, Arnoldo Delgado, Enrique Vera

    Published 2011-01-01
    “…<br>In this work the technique of impedance spectroscopy electrochemistry (EIS) was used to evaluate the effects of carbon dioxide on the corrosion of ASTM A 706 structural steel embedded in concrete with alkali activated slag (AAS), AAS concrete is a mixture of ground granulated slag, fine and coarse aggregates and alkaline solution (sodium silicate) in the amount required for the concrete mix. …”
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  18. 3618

    Uniaxial strain tuning of charge modulation and singularity in a kagome superconductor by Chun Lin, Armando Consiglio, Ola Kenji Forslund, Julia Küspert, M. Michael Denner, Hechang Lei, Alex Louat, Matthew D. Watson, Timur K. Kim, Cephise Cacho, Dina Carbone, Mats Leandersson, Craig Polley, Thiagarajan Balasubramanian, Domenico Di Sante, Ronny Thomale, Zurab Guguchia, Giorgio Sangiovanni, Titus Neupert, Johan Chang

    Published 2024-12-01
    “…In this study, through angle-resolved photoemission spectroscopy, we provide comprehensive spectroscopic measurements of the electronic responses induced by compressive and tensile strains on the charge-density-wave (CDW) and van Hove singularity (VHS) in CsV3Sb5. …”
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  19. 3619

    Non-Stoichiometric Ba<sub>x</sub>Mn<sub>0.7</sub>Cu<sub>0.3</sub>O<sub>3</sub> Perovskites as Catalysts for CO Oxidation: Optimizing the Ba Content by Álvaro Díaz-Verde, Emerson Luiz dos Santos Veiga, Héctor Beltrán-Mir, María José Illán-Gómez, Eloísa Cordoncillo-Cordoncillo

    Published 2025-01-01
    “…A correlation between the electrical conductivity, obtained by impedance spectroscopy, and the reducibility of the samples, obtained by H<sub>2</sub>-TPR, was observed. …”
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  20. 3620

    One-step solvothermal preparation of Fe-doped Ni0.85Se/NF: An efficient catalyst for the oxygen evolution reaction by Longqi Zhu, Runze Wang, Chen Wang, Shuhan Yang, Haizhen Liu, Bo Xing, Honghui Cheng, Kuikui Wang

    Published 2025-01-01
    “…In situ Raman and X-ray photoelectron spectroscopy (XPS) analyses showed that the excellent OER performance stemmed from the reconstruction-induced hydroxyl oxide. …”
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