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Showing 21 - 40 results of 431 for search 'spectral composition method', query time: 0.12s Refine Results
  1. 21

    Measuring. Monitoring. Management. Control by E.A. Pecherskaya, U.S. Chikhrina, O.V. Karpanin, P.E. Golubkov, S.A. Gurin

    Published 2024-12-01
    “…In the presented study, the spectral composition and surface roughness are considered as such parameters. …”
    Article
  2. 22

    Seasonal and Long-Term Water Regime Trends of Cheremsky Wetland: Analysis Based on Sentinel-2 Spectral Indices and Composite Indicator Development by Oleksandr Melnyk, Ansgar Brunn

    Published 2025-07-01
    “…Using Sentinel-2 data and the Google Earth Engine platform, 14 spectral water indices were calculated. Their temporal trends were analyzed using Sen’s method, mutual correlations, and principal component analysis (PCA) to identify the main patterns of variability. …”
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    Article
  3. 23
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    Choice and justification of the method of titanium welding with platinum by Anatolii Sanin, Ihor Mamchur, Tetiana Nosova, Stella Mamchur

    Published 2024-06-01
    “…Analysis was carried out to identify phases and phase mixtures. Micro-X-ray spectral analysis was carried out on a Cameca device using the scanning method and determining the composition by elements with a distance between points of 2 μm in the direction perpendicular to the welding surface. …”
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    Article
  5. 25

    A Novel Adaptive Spectral Drift Correction Method for Recalibrating the MarSCoDe LIBS Data in China's Tianwen-1 Mars Mission by Sicong Liu, Haofeng Zeng, Hongpeng Wang, Xiaohua Tong, Hui Zhao, Kecheng Du, Jie Zhang

    Published 2023-01-01
    “…By considering the distribution of characteristic peaks and drift differences between different elements, the proposed ASDC method corrects the spectral drift in LIBS science data according to an adaptive spectral segmentation strategy. …”
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    Article
  6. 26

    Statistics on Differences in the Institutional Composition of the National Economy and Issues Related to its Harmonization by O. V. Morozov, A. G. Biryukov, M. A. Vasiliev

    Published 2020-09-01
    “…At the same time, it is obvious that the ratio between the public and other (non-state) sectors refers to the issue of strategic importance, to the issue of the effectiveness of the country's economic system in its integrity, and therefore requires theoretical, methodological and practical resolution.The objectives of the research are: (1) to determine the relative scale and efficiency of the public sector functioning in the national economy, to establish minimum necessary and maximum possible values of its scale; (2) to determine the size and establish a measure of harmonious combination of institutional components of the domestic economy aimed at maximizing its efficiency.Materials and methods. Theoretical foundations of the research have been developed on the basis of the authors' preferences regarding the results of conceptual and applied developments of domestic scientists in the field of philosophy, mathematics, economics and sociology, as well as the practice of structural and spectral analysis in their subject areas. …”
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    Article
  7. 27

    A Wavelet Decomposition Method for Estimating Soybean Seed Composition with Hyperspectral Data by Aviskar Giri, Vasit Sagan, Haireti Alifu, Abuduwanli Maiwulanjiang, Supria Sarkar, Bishal Roy, Felix B. Fritschi

    Published 2024-12-01
    “…Accurate and efficient methods for predicting seed composition are essential for optimizing crop management and breeding strategies. …”
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    Article
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    Effective Denoising of Multi-Source Partial Discharge Signals via an Improved Power Spectrum Segmentation Method Based on Normalized Spectral Kurtosis by Baojia Chen, Kaiwen Li, Yipeng Guo

    Published 2025-06-01
    “…To overcome these limitations and achieve precise characterization of composite PD signatures, this study proposes an improved power spectrum segmentation method (IPSK) based on spectral kurtosis. …”
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    Article
  10. 30

    Determination of the composition of the Zinelbulak talc-magnesite deposit rock using modern physicochemical methods by Jumaniyazov Maxsud, Kurambayev Sherzod, Atashev Elyor, Jumaniyozov Arslon, Buranova Mokhigul

    Published 2025-01-01
    “…To further study the composition of the raw material, differential thermal analysis and thermogravimetry methods were employed. …”
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    Article
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    Digital technology for spectral analysis of oscillation parameters by A. V. Gulaj, V. M. Zajcev

    Published 2022-06-01
    “…The objective of this work consists in creating a digital method for spectral analysis of vibration signals, the implementation of which would be possible with the use of smart devices. …”
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    Article
  14. 34

    Calibration of the Composition of Low-Alloy Steels by the Interval Partial Least Squares Using Low-Resolution Emission Spectra with Baseline Correction by M. V. Belkov, K. Y. Catsalap, M. A. Khodasevich, D. A. Korolko, A. V. Aseev

    Published 2024-04-01
    “…The multivariate partial least squares method was used to create the calibrations. Reducing the effect of redundancy of wideband emission spectra on the results of quantitative analysis was achieved by searching combination moving window containing one spectral variable more than the optimal number of latent variables for the wideband multivariate model. …”
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    Article
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    Investigation of Fatigue Assessment Method for Glass Fiber Reinforced Composite Hull Structures Based on Stiffness Degradation by Kaiyan Li, Guanyi Gao, Guoqing Feng, Yaozhong Fan, Yiyang Han

    Published 2024-12-01
    “…A study was conducted on the fatigue assessment method for composite ship structures under complex marine environments, and a fatigue assessment method based on the principle of stiffness degradation was proposed. …”
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    Article
  17. 37

    Research on damage identification method of composite beams based on dynamic macro-strain under impact load by Yunsheng LI, Ding HE, Xiaoyuan JIA, Chunlei CUI, Xueliang Rong, Yanling ZHANG

    Published 2025-08-01
    “…In order to achieve damage identification of steel-concrete composite beams based on distributed long-gauge fiber bragg grating (FBG) sensors, model tests and finite element analysis of composite beams under impact loads were conducted. …”
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    Article
  18. 38

    Effects of Different Extraction Methods on the Molecular Composition and Biological Activities of Polysaccharides from <i>Pleione yunnanensis</i> by Zhiqin Song, Zhihong Zheng, Xue Han, Yaya Chen, Hai Liu, Lin Yang, Mingkai Wu

    Published 2025-04-01
    “…The results showed that the five polysaccharides all exhibited typical infrared spectral characteristics of polysaccharides. Their monosaccharide compositions were basically the same, all consisting of glucose and mannose, but their surface morphologies differed significantly. …”
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    Article
  19. 39

    Interannual variability of moisture sources and isotopic composition of Meiyu-Baiu rainfall in southwestern Japan: Importance of Asian monsoon moisture for extreme rainfall events by Xiaoyang Li, Ryuichi Kawamura, Kimpei Ichiyanagi, Kei Yoshimura

    Published 2025-06-01
    “…To better understand the underlying atmospheric processes responsible for interannual variability of Meiy-Baiu rainfall, we utilized an isotopic regional spectral model to investigate the moisture sources and isotopic composition of Meiyu-Baiu rainfall in southwestern Japan from 2004 to 2023. …”
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    Article
  20. 40

    IR spectral manifestation of tin impurity sites in titanium dioxide by O. V. Smirnova, A. G. Grebenyuk, V. V. Lobanov, T. A. Khalyavka, N. D. Shcherban, M. V. Shapovalova, V. V. Permyakov

    Published 2021-08-01
    “…They affected the electronic structure and spectral characteristics of TiO2. The aim of our work was to investigate the influence of tin impurities on spectral characteristics of titanium dioxide using experimental and theoretical methods. …”
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    Article