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Showing 361 - 380 results of 431 for search 'spectral composition method', query time: 0.13s Refine Results
  1. 361

    Structural, magnetic, and optical characteristics of undoped and chromium, iron, cobalt, copper, and zinc doped nickel oxide nanopowders by Farzaneh Asaldoust, Khosro Mabhouti, Akbar Jafari, Maryam Taleb-Abbasi

    Published 2025-01-01
    “…In this regard, the preparation of pristine NiO and Ni0.95 × 0.05O (X = Cr, Fe, Co, Cu, and Zn) powders was successfully achieved through the co-precipitation method. The X-ray powder diffraction was employed to examine the prepared powders’ phase formation and crystal structure characteristics. …”
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    Article
  2. 362

    TUH-NAS: A Triple-Unit NAS Network for Hyperspectral Image Classification by Feng Chen, Baishun Su, Zongpu Jia

    Published 2024-12-01
    “…Nevertheless, existing NAS-based classification methods have not specifically focused on the complex connection between spectral and spatial data. …”
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    Article
  3. 363

    Identification and quantitative determination of arbutin in the herb of Orthilia secunda by A. V. Lezina, I. I. Terninko, M. V. Krysko

    Published 2021-12-01
    “…Identification and quantification of arbutin by chromatographic methods in Orthilia secunda (L.) House, harvested in various phytocenotic zones.Materials and methods. …”
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    Article
  4. 364

    Mapping Invasive <italic>Spartina alterniflora</italic> Using Phenological Information and Red-Edge Bands of Sentinel-2 Time-Series Data by Yiwei Ma, Li Zhuo, Jingjing Cao

    Published 2025-01-01
    “…Therefore, we proposed a pixel-based phenological and red-edge feature composite method (PpRef-CM) for <italic>S. alterniflora</italic> extraction considering both phenological information and red-edge bands derived from Sentinel-2 time series based on the existing pixel-based phenological feature composite method (Ppf-CM). …”
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    Article
  5. 365

    Harnessing Raman spectroscopy and multimodal imaging of cartilage for osteoarthritis diagnosis by Anna Crisford, Hiroki Cook, Konstantinos Bourdakos, Seshasailam Venkateswaran, Douglas Dunlop, Richard O. C. Oreffo, Sumeet Mahajan

    Published 2024-12-01
    “…Cell clustering was observed in OA together with differences in pericellular matrix and collagen structure in the superficial and the deep layers correlating with the Raman spectral analysis. The current study demonstrates the potential of Raman Spectroscopy and multimodal imaging to interrogate cartilage tissue and provides insight into the chemical and structural composition of its different layers with significant implications for OA diagnosis for an increasing aging demographic.…”
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    Article
  6. 366

    Human Action Recognition Using Difference of Gaussian and Difference of Wavelet by Gopampallikar Vinoda Reddy, Kongara Deepika, Lakshmanan Malliga, Duraivelu Hemanand, Chinnadurai Senthilkumar, Subburayalu Gopalakrishnan, Yousef Farhaoui

    Published 2023-09-01
    “…A novel action descriptor is proposed in this study, based on two independent spatial and spectral filters. The proposed descriptor uses a Difference of Gaussian (DoG) filter to extract scale-invariant features and a Difference of Wavelet (DoW) filter to extract spectral information. …”
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    Article
  7. 367

    Exploring the capabilities of hyperspectral remote sensing for soil texture evaluation by Mohammad Hosseinpour-Zarnaq, Mahmoud Omid, Fereydoon Sarmadian, Hassan Ghasemi-Mobtaker, Reza Alimardani, Pouya Bohlol

    Published 2025-12-01
    “…Hyperspectral remote sensing provides a broad range of spectral bands with up-to-date, cost-effective, and spatially explicit resolution for smart agriculture and environmental management. …”
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    Article
  8. 368

    Sequencing Silicates in the Spitzer Infrared Spectrograph Debris Disk Catalog. I. Methodology for Unsupervised Clustering by Cicero X. Lu, Tushar Mittal, Christine H. Chen, Alexis Y. Li, Kadin Worthen, B. A. Sargent, Carey M. Lisse, G. C. Sloan, Dean C. Hines, Dan M. Watson, Isabel Rebollido, Bin B. Ren, Joel D. Green

    Published 2025-01-01
    “…CLUES combines multiple unsupervised clustering methods with multiscale distance measures to discern new groupings and trends, offering insights into compositional diversity and geophysical processes within these disks. …”
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    Article
  9. 369

    The narrow-band organic photodetectors based on organic photo-filtering layers using a transfer printing technology by Pengchao Zhou, Jialu Gu, Lei Fan, Jipeng Ma, Kuang Sheng, Hong Lian, Kunping Guo, Wei Shi, Bin Wei

    Published 2025-06-01
    “…Abstract Aiming at the response spectral of organic photodetectors (OPDs), we investigate a method of preparing the narrow-band near-infrared (NIR) OPDs by using thin film transfer print technology (TFTPT) to prepare the active layer of bulk heterojunction on the organic photo-filtering layer—a functional layer which can block some specific wavelengths of light and prevent these photons from reaching the next functional layer. …”
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    Article
  10. 370

    Experimental Research on Vibration Fatigue of CFRP and Its Influence Factors Based on Vibration Testing by Zhengwei Fan, Yu Jiang, Shufeng Zhang, Xun Chen

    Published 2017-01-01
    “…A new research method based on vibration testing for the vibration fatigue of FRP was proposed in this paper. …”
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    Article
  11. 371

    A Multi-Kernel Mode Using a Local Binary Pattern and Random Patch Convolution for Hyperspectral Image Classification by Wei Huang, Yao Huang, Zebin Wu, Junru Yin, Qiqiang Chen

    Published 2021-01-01
    “…Experiments show that compared with other HSI classification methods, the proposed method achieves better classification performance on three HSI datasets.…”
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    Article
  12. 372

    Synthesis of Deuterated Methylphosphonic Acid Derivatives for Use as Standard Compounds in the Analysis of Toxic Chemicals by V. А. Yashkir, V. I. Krylov, I. I. Krylov, A. V. Brown, D. V. Oreshkin, I. V. Rybalchenko, V. N. Fateenkov

    Published 2021-06-01
    “…NMR 2Н, 31Р, GC-MS and HPLC-MS spectral characteristics of the synthesized substances were studied.…”
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  13. 373
  14. 374

    Advances in Surface-Enhanced Raman Spectroscopy for Urinary Metabolite Analysis: Exploiting Noble Metal Nanohybrids by Ningbin Zhao, Peizheng Shi, Zengxian Wang, Zhuang Sun, Kaiqiang Sun, Chen Ye, Li Fu, Cheng-Te Lin

    Published 2024-11-01
    “…We analyze various fabrication methods that enable precise control over nanostructure morphology, composition, and surface chemistry. …”
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    Article
  15. 375

    Influence of low-intensity artificial light on the fatty acid profile of the biotechnologically important culinary mushroom Pleurotus eryngii in vitro by Oksana Mykchaylova, Aleksander Besarab, Anatoliy Negriyko, Margarita Lomberg, Natalia Poyedinok

    Published 2025-03-01
    “…Conclusions The selected mycelial photoactivation modes using low-intensity laser and LED light of different spectral composition and coherence may have potential in the biotechnology of submerged cultivation of P. eryngii to obtain mycelial mass with an improved fatty acid profile, which can be considered as a useful source of lipids.…”
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    Article
  16. 376

    Fluorescence Spectroscopy and a Convolutional Neural Network for High-Accuracy Japanese Green Tea Origin Identification by Rikuto Akiyama, Kana Suzuki, Yvan Llave, Takashi Matsumoto

    Published 2025-04-01
    “…In contrast, the classification of Kakegawa and Sayama teas proved challenging due to their similar fluorescence patterns in the 300–350 nm spectral range, corresponding to catechins and polyphenolic compounds. …”
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    Article
  17. 377

    Color stability of clear aligners exposed to various beverages: an in vitro study by Chanakarn Kobkiatkawin, Woraphong Panyayong, Suphachai Suphangul, Sasipa Thiradilok

    Published 2025-07-01
    “…The highest degree of roughness and porosity was shown on the surface of Invisalign®. The spectral features of samples immersed in colored beverages almost overlapped with as receive samples before immersion. …”
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  18. 378

    Design and development of pH-responsive levofloxacin-loaded metal-organic framework for the promising treatment of pediatric abdominal wound repair by Guoyan Wang, Hongwei Li, Xinhua Shao, Shuisheng Teng, Qiong Wu

    Published 2024-06-01
    “…We designed and developed an LEV incorporated with zeolite imidazole framework-8 (ZIF-8) as a promising nanocarrier for wound healing applications. The spectral analysis and morphological analysis confirm the formation of our newly fabricated composites. …”
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    Article
  19. 379

    Comparing Grid Model Fitting Methodologies for Low-temperature Atmospheres: Markov Chain Monte Carlo versus Random Forest Retrieval by Anna Lueber, Adam J. Burgasser

    Published 2025-01-01
    “…Self-consistent atmosphere models are commonly used for spectral fitting, but computational limits restrict the production of finely sampled multidimensional parameter grids, necessitating interpolation methods to infer precise parameters and uncertainties. …”
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    Article
  20. 380

    Long-time spectra of radio broadcast programme signals by Denes HUSZTY

    Published 2016-03-01
    “…A definition of the spectrally equivalent programme signal and a network for forming it are given.…”
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    Article