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Showing 101 - 120 results of 431 for search 'spectral composition method', query time: 0.20s Refine Results
  1. 101

    Influence of staining on the optical properties and surface topography of low-shrinkage and conventional dental composites by Dervišević Milica, Dramićanin Miroslav, Todorović Aleksandar, Lazić Zoran, Manojlović Dragica

    Published 2025-01-01
    “…Methods. Two low-shrinkage nanohybrid composites (N’Durance® and Charisma® Diamond) and two conventional composites [Tetric EvoCeram® (nanohybrid) and Gradia® Direct (microhybrid)] in shade B1 were immersed in tea for seven days. …”
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  2. 102

    Soil organic carbon estimation using spaceborne hyperspectral composites on a large scale by Xiangyu Zhao, Zhitong Xiong, Paul Karlshöfer, Nikolaos Tziolas, Martin Wiesmeier, Uta Heiden, Xiao Xiang Zhu

    Published 2025-06-01
    “…For this regression task, different machine learning and deep learning methods were implemented and explored. Moreover, a spectral attention mechanism was added to the model. …”
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    Article
  3. 103

    SEM study of the microelement composition of the apical region of the tooth after the treatment of destructive periodontitis by V. V. Glinkin, Z. S. Khabadze, Y. A. Generelova, M. A. Gasbanov, F. V. Badalov, O. Leizerovitz

    Published 2023-04-01
    “…Using a scanning electron microscope to study the microelement composition of the apical area of hard tissues of the tooth root after the treatment of destructive periodontitis.Materials and methods. …”
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    Article
  4. 104

    Temporal generalization in evergreen leaf type classification using tailored Sentinel-2 composites by Peter Hofinger, Jan Dempewolf, Simon Ecke, Hans-Joachim Klemmt

    Published 2025-11-01
    “…Key contributions include recursive feature elimination to identify the most relevant spectral bands and indices, and optimizing compositing methods to boost classification accuracy, balancing robustness and temporal detail. …”
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  5. 105
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  7. 107

    METHODS AND MEANS OF ANALYTIC CONTROL IN METALLURGY PRODUCTION by M. N. Kovalenko, V. A. Chekan, L. V. Markova, V. V. Koleda

    Published 2004-11-01
    “…On the basis of long-term working experience of testing Centre there are given recommendations to the works laboratories on using of spectral methods on definition of elementary composition of different classes materials.…”
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    Article
  8. 108

    Investigating Tropical Cyclone Warm Core and Boundary Layer Structures with Constellation Observing System for Meteorology, Ionosphere, and Climate 2 Radio Occultation Data by Xiaoxu Qi, Shengpeng Yang, Li He

    Published 2024-11-01
    “…This research provides an effective QC method and reveals that the bending angle is sensitive to the PBL height.…”
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    Article
  9. 109

    Slowing of Parameterized Resting-State Electroencephalography After Mild Traumatic Brain Injury by Mark C. Nwakamma, Alexandra M. Stillman, Laurel J. Gabard-Durnam, James F. Cavanagh, Charles H. Hillman, Timothy P. Morris

    Published 2024-11-01
    “…This slowing of week 2 (collected within 2 weeks of injury) aperiodic-adjusted alpha center peak frequency within the FP network was associated with increased EF over time (evaluated using executive composite scores) post-mTBI. These findings suggest alpha center peak frequency within the FP network as a candidate prognostic marker of EF recovery and may inform clinical rehabilitative methods post-mTBI.…”
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    Article
  10. 110

    Chromatography-mass spectrometric study of the chemical composition of Myrtus communis L. leaf essential oil by O. Ye. Matsehorova, V. M. Odyntsova

    Published 2025-03-01
    “…The aim of the work is to conduct a chromatography-mass spectrometric analysis of the chemical composition of Myrtus communis L. leaf essential oil. …”
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  11. 111
  12. 112

    Peculiarities of the composition of surface and groundwater in eastern Ukraine during the war: assessment of environmental and carcinogenic risks by O. O. Kovalov, Yu. M. Kolesnyk, A. I. Sevalniev, L. P. Sharavara, O. V. Hancheva, K. O. Kovalov, T. M. Tyshchenko, Ye. O. Tulushev

    Published 2025-06-01
    “…The presence of heavy metals and organic compounds (50 indicators in total) was studied by atomic emission spectral, photometric, titrimetric, ionometric, colorimetric, chromatographic and calculation methods. …”
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    Article
  13. 113
  14. 114

    ESTIMATION OF THE DEPTH OF ANESTHESIA BY ELECTROENCEPHALOGRAM USING NEURAL NETWORKS by Mokhammed A. Al-Ghaili, Alexander N. Kalinichenko

    Published 2019-07-01
    “…The article presents the results of study the possibility of building a regression model based on artificial neural networks (ANN) to determine levels of anesthesia using a set of parameters calculated by EEG. Materials and methods. The authors of the article propose the method for assessing the level of anesthesia, based on the use of neural networks, which input parameters are time and frequency EEG parameters, namely: spectral entropy (SE); burst-suppression ratio (BSR); spectral edge frequency (SEF95) and log power ratio of the spectrum (RBR) for three pairs of frequency ranges. …”
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  15. 115

    Investigation of Oil Extracted from Roasted and Unroasted Oats with Use of Chemometrics by Bharani Kumar Palani, Marta Siol, Sina Makouie, Joanna Bryś, Eliza Gruczyńska-Sękowska, Piotr Koczoń

    Published 2024-12-01
    “…To achieve this goal, a pressure differential scanning calorimeter, infrared spectroscopy calorimetric bomb, and gas chromatography were used. Using chemometric methods, the spectral data were combined with calorimetric data, automatic titration data, and chromatographic data. …”
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  16. 116
  17. 117

    RGB and RGNIR image dataset for machine learning in plastic waste detectionZENODO by Owen Tamin, Ervin Gubin Moung, Jamal Ahmad Dargham, Samsul Ariffin Abdul Karim, Ashraf Osman Ibrahim, Nada Adam, Hadia Abdelgader Osman

    Published 2025-06-01
    “…The increasing volume of plastic waste is an environmental issue that demands effective sorting methods for different types of plastic. While spectral imaging offers a promising solution, it has several drawbacks, such as complexity, high cost, and limited spatial resolution. …”
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  18. 118
  19. 119

    Constraining Ongoing Volcanic Outgassing Rates and Interior Compositions of Extrasolar Planets with Mass Measurements of Plasma Tori by V. Abby Boehm, Darryl Z. Seligman, Nikole K. Lewis

    Published 2025-01-01
    “…We present a novel method of constraining volcanic activity on extrasolar terrestrial worlds via characterization of circumstellar plasma tori. …”
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  20. 120

    DEVELOPMENT OF PERSPECTIVE ORGANO-HYBRID COMPOSITION BASED ON MODIFIED POLYACRYLONITRILE DURING REPAIR AND INSULATION OPERATIONS IN WELLS by A. S. Gumerova, R. N. Yakubov, L. E. Lenchenkova, D. A. Ilash

    Published 2022-07-01
    “…A complex of rheological studies was carried out to determine the structural and mechanical properties of the composition with hydrochloric acid. Spectral studies were performed to clarify the mechanism of gel formation of a new organo-hybrid composition. …”
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