Showing 2,701 - 2,720 results of 3,204 for search '"spectroscopy"', query time: 0.14s Refine Results
  1. 2701

    Performance Evaluation of Bone Glue-Modified Asphalt by Asif Ali, Naveed Ahmad, Muhammad Adeel, Syed Bilal Ahmed Zaidi, Muhammad Sohail Jameel, Farsan Ali Qureshi, Waqas Haroon, Syeda Aamara Asif

    Published 2019-01-01
    “…Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) analysis were carried out to ensure the homogeneity and proper mixing of bone glue in asphalt binder. …”
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  2. 2702

    Preparation and Performance Analysis of High-Viscosity and Elastic Recovery Modified Asphalt Binder by Liangchen Qu, Yingli Gao, Hui Yao, Dandan Cao, Ganpeng Pei, Bei He, Kairui Duan, Wenjuan Zhou

    Published 2019-01-01
    “…Furthermore, the Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM) measurements were conducted for obtaining the mechanism and microstructure distribution of the modified asphalt binders. …”
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  3. 2703

    Evaluating lead leaching from uPVC pipes into drinking water: Characterization with SEM-EDX and ICP-OES by Yassin T.H. Mehdar

    Published 2025-01-01
    “…In addition, elemental mapping obtained using scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX) was utilized to determine the weight percentages of Lead (Pb) on the inner surfaces of the uPVC pipes.The novelty of this study lies in several key aspects that distinguish it from existing literature. …”
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  4. 2704
  5. 2705

    Synthesis of lutetium hydrides at high pressures by Yuan-Ao Peng, Han-Yu Wang, Fu-Hai Su, Pu Wang, Hai-An Xu, Lin Liu, Lun-Xuan Yu, Ross T. Howie, Wan Xu, Eugene Gregoryanz, Xiao-Di Liu

    Published 2025-01-01
    “…High-pressure synthesis of lutetium hydrides from molecular hydrogen (H2) and lutetium (Lu) is systematically investigated using synchrotron X-ray diffraction, Raman spectroscopy, and visual observations. We demonstrate that the reaction pathway between H2 and Lu invariably follows the sequence Lu ⟶ LuH2 ⟶ LuH3 and exhibits a notable time dependence. …”
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  6. 2706

    Airborne lidar intensity correction for mapping snow cover extent and effective grain size in mountainous terrain by Chelsea Ackroyd, Christopher P. Donahue, Brian Menounos, S. McKenzie Skiles

    Published 2024-12-01
    “…The lidar-derived grain size retrievals had a MAE of 32 µm compared to those from field spectroscopy, which translated to a 1% error in snow albedo. …”
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  7. 2707

    Phenols from Vaccinium dunalianum Wight: Secondary Mass Spectrometry Fragmentation and Neuroprotective Effect by ZHOU Tang, WANG Ji, QIAO Wenhao, LIN Zhiqi, ZHU Hongbo, CHANG Yue, HU Weiyan, ZHANG Rongping, CHEN Xinglong

    Published 2024-12-01
    “…In order to elucidate the health efficacy of Vaccinium dunalianum buds as a tea substitute and to reveal the material basis for its functionality, we studied the chemical constituents of V. dunalianum buds by using separation materials such as silica gel, MICHP-20p gel, Sephadex LH-20, and RP-18 combined with preparative and semi-preparative high performance liquid chromatography (HPLC), high-resolution mass spectrometry and nuclear magnetic resonance (NMR) spectroscopy. Totally 16 phenolic compounds were isolated and identified from the water extract of V. dunalianum buds, including seven arbutins, four flavonoids, two lignansand, and three other phenolic compounds, among which compounds 2–5, 7, and 11–16 were isolated from the Vaccinium genus for the first time. …”
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  8. 2708

    Mask Material Filtration Efficiency and Mask Fitting at the Crossroads: Implications during Pandemic Times by Karin Ardon-Dryer, Juliusz Warzywoda, Rumeysa Tekin, Jnev Biros, Sharilyn Almodovar, Brandon L. Weeks, Louisa J. Hope-Weeks, Albert Sacco

    Published 2021-03-01
    “…To explain the filtration efficiency results, the structure and composition of all filter materials were determined using FE-SEM, and IR and Raman spectroscopy. In conclusion, when highly efficient materials are used in masks that do not fit the users properly, the potential of these materials to protect the users from aerosols is compromised. …”
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  9. 2709

    Carbonatation and Decarbonatation Kinetics in the La2O3-La2O2CO3 System under CO2 Gas Flows by Bahcine Bakiz, Frédéric Guinneton, Madjid Arab, Abdeljalil Benlhachemi, Sylvie Villain, Pierre Satre, Jean-Raymond Gavarri

    Published 2010-01-01
    “…Electrical impedance spectroscopy is performed to determine the electrical responses associated with ionic mobilities and phase changes, in the temperature range 25 to 900∘C. …”
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  10. 2710

    Silver nanoparticles on UiO-66 (Zr) metal-organic frameworks for water disinfection application by Hui Chen, Chen Qiu, Yiran Jiang, Xinyu Liao, Dan Wu, Mofei Shen, Tian Ding

    Published 2022-03-01
    “…The formation of AgNPs loaded on UiO-66 was observed and confirmed with ultraviolet and visible spectrophotometry (UV-Vis), scanning electron microscopy (SEM), infrared emission spectroscopy (IES) and X-ray diffraction (XRD) analysis. …”
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  11. 2711

    Significant role of anionic behavior of cocoyl glutamate on lead(II) ion adsorption towards activated carbon adsorbent from cigarette butts by Moh Zeinur Ridho, Retno Pertiwi, Eldo Delta Bagaskara, Raya Rambu Rambani, Chika Synthia Pitaloka, Fanta Mei Wahyuni, Istiqomah Rahmawati, Muhammad Reza

    Published 2025-06-01
    “…The surfactant used in this study was DCG due to its natural and anionic behavior, with varied concentrations (0.1, 1, and 10 % (v/v)). Infrared spectroscopy revealed that the structure of both CA and CA-DCG mainly consists of aromatic rings functionalized by several oxygen functional groups, such as carbonyl and hydroxyl groups. …”
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  12. 2712

    Study of evolution for 3D structured surface with nano-balls and walls-like features with thickness variation for WO3 thin films made by spray deposition by Mirela Petruta Suchea, Ioan Valentin Tudose, Cosmin Romanitan, Cristina Pachiu, Marian Popescu, Kyriakos Mouratis, Marina Manica, Stefan Antohe, Stelios Couris, Dragos Gabriel Zisopol, Octavian Narcis Ionescu, Emmanuel Koudoumas

    Published 2025-02-01
    “…In this scope, two different series of WO3 of 11 samples with different thicknesses each, starting from two tungsten peroxide precursor concentrations (0.05 M and 0.1 M) were fabricated by spray pyrolysis and thoroughly characterized by field emission scanning electron microscopy (FE-SEM), X-ray diffraction and Raman spectroscopy. Results suggest that, for the mentioned concentrations, the main structural differences affect mostly the surface morphology and slightly the surface texturing. …”
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  13. 2713

    Development of corrosion-resistant hydrophobic Zn/ZnO composite coatings on steel substrates by Muhammad Sajid Ali Asghar, Umer Hussain, Muhammad Ovais, Shaheer Ahmed Khan, Abdul Aabid, Muneer Baig, Mohammad Abdul Malik

    Published 2025-01-01
    “…Electrodeposition techniques are used to incorporate the coating deposits. Spark emission spectroscopy and x-ray Fluorescence elemental analysis shows the composition of bare and galvanized steel. …”
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  14. 2714

    Investigation on the Hydrothermal Condition in Synthesis of Active Matrix from Metakaolin: Physicochemical Properties and Intrinsic Cracking Activities by Farhansyah Yusuf Putra Hudaya, Rezky Oktaviandy Anggaswara, Melia Laniwati Gunawan, Grandprix Thomryes Marth Kadja, I. G. B. N. Makertihartha

    Published 2024-10-01
    “…Subsequently, the active matrix was subjected to a series of analyses, including X-ray fluorescence, X-ray diffraction, N2 physisorption, NH3-temperature programmed desorption, Fourier transform infrared spectroscopy, scanning electron microscopy and thermogravimetry, with the objective of determining its composition, crystal characteristics, surface characteristics, acidity, functional groups, material structure, and thermal characteristics. …”
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  15. 2715

    Morphological influence of graphene and FeSO4 on polyaniline and application of nanocomposite towards oxygen reduction reactions in acid medium by Francklin Philips Muthukrishnan, Pavithra Bharathi Sundararajan, Akilan Murugesan

    Published 2025-03-01
    “…NCs are characterized for their morphology and microstructure by scanning electron microscope (SEM) with energy dispersive analysis of x-rays (EDAX), x-ray diffraction (XRD) analysis and x-ray photoelectron spectroscopy (XPS) analysis. Gr-PANI Fe NP NC and PANI-Fe NPs NC exhibited nanoflower (designated as GPF NF NC) and nanorod (designated as PF NR NC) like morphology, respectively. …”
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  16. 2716

    Identification of metastable lattice distortion free charge density wave at photoinduced interface via TRARPES by Shaofeng Duan, Binshuo Zhang, Zihao Wang, Shichong Wang, Lingxiao Gu, Haoran Liu, Jiongyu Huang, Jianzhe Liu, Dong Qian, Yanfeng Guo, Wentao Zhang

    Published 2025-02-01
    “…Here, we report the realization of a long-lived metastable CDW state without lattice distortion at the photoinduced interfaces in GdTe3 using time- and angle-resolved photoemission spectroscopy. After optical excitation above the CDW melting threshold, we identified emerged metastable interfaces through inverting the CDW-coupled lattice distortions, with lifetimes on the order of 10 picoseconds. …”
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  17. 2717

    Oxygen effect on the performance of β-Ga2O3 enhancement mode MOSFETs heteroepitaxially grown on a sapphire by Yueh-Han Chuang, Fu-Gow Tarntair, Tzu-Wei Wang, Anoop Kumar Singh, Po-Liang Liu, Dong-Sing Wuu, Hao-Chung Kuo, Xiuling Li, Ray-Hua Horng

    Published 2025-03-01
    “…X-ray photoelectron spectroscopy analysis suggests that this improvement is due to reduced oxygen vacancies and minimized Al diffusion from the substrate. …”
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  18. 2718

    ZnO Nanoparticles by Hydrothermal Method: Synthesis and Characterization by Juan Carlos Anaya-Zavaleta, Antonio Serguei Ledezma-Pérez, Carlos Gallardo-Vega, Joelis Rodríguez-Hernández, Carmen Natividad Alvarado-Canché, Perla Elvia García-Casillas, Arxel de León, Agustín Leobardo Herrera-May

    Published 2025-01-01
    “…Characterization through UV–Vis spectroscopy revealed absorption peaks between 374 and 397 nm, showing a blue shift compared to bulk ZnO (400 nm) attributable to nanoscale dimensions. …”
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  19. 2719

    Urine metabolic profile in rats with arterial hypertension of different genesis by A. A. Sorokoumova, A. A. Seryapina, Yu. K. Polityko, L. V. Yanshole, Yu. P. Tsentalovich, М. А. Gilinsky, А. L. Markel

    Published 2024-05-01
    “…WAG rats were used as normotensive controls. 24-hour urine samples were collected from all animals and analyzed by quantitative NMR spectroscopy for metabolic profiling. Then, potential metabolomic markers for the studied forms of hypertensive conditions were identified using multivariate statistics. …”
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  20. 2720

    Trace elements levels in growing camels’ (Camelus dromedarius) biological tissues from semi-arid areas by Mutassim M. Abdelrahman, Ibrahim A. Alhidary, Mohsen M. Alobre, Abdulkareem M. Matar, Mohammed A. Al-Badwi, Mohammed M. Qaid, Riyadh S. Aljumaah

    Published 2025-12-01
    “…One hundred and forty-three samples were collected and wet digested to analyze the concentrations of Cu, Zn, Mn, Se, Fe, and I by Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). Results showed significant (P < 0.05) variations among the five regions for camels’ liver Cu, Zn, Se, Mn, and I levels, while Fe concentration did not differ. …”
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