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Showing 381 - 400 results of 431 for search 'spectral composition method', query time: 0.12s Refine Results
  1. 381

    Synthesis, physical and chemical properties of 2-((4-R-3-(morfolinomethylen)-4H-1,2,4-triazole-5-yl)thio)acetic acid salts by R. О. Shcherbyna

    Published 2017-04-01
    “…Synthesis and establishing of the physical and chemical parameters of new 2-((4-R-3-(morfolinometylen)-4H-1,2,4-triazole-5-yl)thio)acetic acid salts. Materials and methods. The study of physical and chemical properties of the obtained compounds was conducted by the methods that are listed in the State Pharmacopoeia of Ukraine 2.0. …”
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  2. 382

    Brake rigging dynamic simulation under braking on a track section with irregularities (the case of a passenger car) by I. A. Yaitskov, V. V. Kosarevskii

    Published 2020-03-01
    “…It was determined that the presence of track irregularities affects the spectral composition of the accelerations. In addition, under the superposition of the bogie-frame pitching and bouncing oscillations, when moving along an uneven track, the rigging block can move up and down the wheel-working surface within a range of up to 50 mm. …”
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  3. 383

    Application of Image Computing in Non-Destructive Detection of Chinese Cuisine by Xiaowei Huang, Zexiang Li, Zhihua Li, Jiyong Shi, Ning Zhang, Zhou Qin, Liuzi Du, Tingting Shen, Roujia Zhang

    Published 2025-07-01
    “…Traditional non-destructive detection methods often struggle with the unique challenges posed by Chinese dishes, including complex textural variations in staple foods (e.g., noodles, dumplings), layered seasoning compositions (e.g., soy sauce, Sichuan peppercorns), and oil-rich cooking media. …”
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    Article
  4. 384

    High resolution descriptors for UAV mapping in biodiversity conservation - A case study of sandy steppe habitat renewal. by Maja Arok, Branko Brkljač, Predrag Lugonja, Bojana Ivošević, Milan Vukotić, Tijana Nikolić Lugonja

    Published 2025-01-01
    “…Despite high resolution imaging, the method solves a challenging problem of UAV vegetation mapping in the case of limited spectral and spatial information in the image (by using only RGB camera and multitemporal approach). …”
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    Article
  5. 385

    The Influence of Climate Change and Socioeconomic Transformations on Land Use and NDVI in Ordos, China by Yin Cao, Zhigang Ye, Yuhai Bao

    Published 2024-12-01
    “…In this study, Google Earth Engine (GEE), a remote sensing natural environment monitoring and analysis platform, was used to realize the combination of Landsat TM/OLI data images with spectral features and topographic features, and the random forest machine learning classification method was used to supervise and classify the low-cloud composite image data of Ordos City. …”
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  6. 386

    Flexible Hierarchical Multi-Beam Search Algorithm for Millimeter-Wave 3D MIMO Systems With Uniform Planar Arrays by Dony Darmawan Putra, Wan-Jen Huang

    Published 2025-01-01
    “…Moreover, the simulation results also show that the spectral efficiency of the precoding scheme determined using the proposed search algorithm and codebook is the highest compared to existing methods. …”
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    Article
  7. 387

    Mapping winter rapeseed in South China using Sentinel-2 data based on a novel separability index by Jian-bin TAO, Xin-yue ZHANG, Qi-fan WU, Yun WANG

    Published 2023-06-01
    “…Time series composited Sentinel-2 data were used to map winter rapeseed with 10 m resolution. …”
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    Article
  8. 388

    A Handheld IoT Vis/NIR Spectroscopic System to Assess the Soluble Solids Content of Wine Grapes by Xu Zhang, Ziquan Qin, Ruijie Zhao, Zhuojun Xie, Xuebing Bai

    Published 2025-07-01
    “…The results indicate that spectral data optimization methods are effective and essential for improving the performance of SSC prediction models. …”
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    Article
  9. 389

    Rapid landslide detection from free optical satellite imagery using a robust change detection technique by Rosa Coluzzi, Angela Perrone, Caterina Samela, Vito Imbrenda, Salvatore Manfreda, Letizia Pace, Maria Lanfredi

    Published 2025-02-01
    “…Therefore, the proposed procedure is effective to detect landslides involving land-surface spectral changes (the majority), without the need of additional in-situ information. …”
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    Article
  10. 390

    Enhancing physicochemical, bioactive, and nutritional properties of sweet potatoes: Ultrasonic contact drying with slot jet nozzles compared to hot-air drying and freeze drying by Gulcin Yildiz, Yuan Gao, Junzhou Ding, Si Zhu, Guibing Chen, Hao Feng

    Published 2025-01-01
    “…Additionally, FTIR analysis revealed that peaks in specific spectral regions indicated superior preservation of bioactive compounds in SJR + US samples compared to other methods, which was also confirmed by principal component analysis (PCA) and heatmap visualization. …”
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    Article
  11. 391

    Urolithiasis complicated by chronic obstructive pyelonephritis in patients with concomitant diseases of the cardiovascular system by R. V. Royuk, S. K. Yarovoy, R. A. Khomov

    Published 2021-12-01
    “…Of the 19 patients with purulent-destructive pyelonephritis on the background of nephrolithiasis, more than a third (7 people - 36.8 %) had concomitant CHD, and of the 7 patients with this terrible complication that developed on the background of concomitant CHD, more than half (4 people - 57.1 %) had CHF of varying severity. The chemical composition of the urine samples was determined using a NICOLET iS10 spectral analyzer (Thermo scientific, USA). …”
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  12. 392

    Adding antibacterial/antiviral properties to medical purpose materials by modification with silver and copper nanoparticles by A. V. Rudenko, L. D. Kisterska, O. B. Loginova, S. L. Rybalko, H. B. Solodukha, A. M. Pochynok

    Published 2025-03-01
    “…The study of the adsorption properties of medical purpose fabrics (using BET method for determining the specific surface area and distribution of pores by size depending on their radius in the tested fabric sample) has shown that their surface is characterized by the presence of micro-, meso-, and macropores, which is why, in addition to its high adsorption capacity for various substances, it can be used for modification with NPs using the method of adsorption from solutions. …”
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    Article
  13. 393

    Characterization of the Lateral Distribution of Fluorescent Lipid in Binary-Constituent Lipid Monolayers by Principal Component Analysis by István P. Sugár, Xiuhong Zhai, Ivan A. Boldyrev, Julian G. Molotkovsky, Howard L. Brockman, Rhoderick E. Brown

    Published 2010-01-01
    “…Collectively, the capacity of PCA for handling large spectral data sets, the nanoscale resolution afforded by the fluorescence signal, and the inherent versatility of monolayers for characterization of lipid lateral interactions enable significantly enhanced resolution of lipid lateral organizational changes induced by different lipid compositions.…”
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  14. 394

    Synthesis and properties of nanostructures based on lanthanum fluoride for photodynamic therapy of tumors of the cranial cavity and bone tissue by A. P. Kusyak, A. L. Petranovska, S. P. Turanska, O. I. Oranska, Yu. M. Shuba, D. I. Kravchuk, L. I. Kravchuk, V. S. Chornyi, O. A. Bur'yanov, Yu. L. Sobolevs'kyy, V. A. Dubok, P. P. Gorbyk

    Published 2021-08-01
    “…The synthesis of nanosized magnetite in the single-domain state was performed by the Elmore method. Synthesized nanodisperse samples are characterized by XRD analysis, DTGA, TEM. …”
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  15. 395

    The Climates and Thermal Emission Spectra of Prime Nearby Temperate Rocky Exoplanet Targets by Tobi Hammond, Thaddeus D. Komacek, Ravi K. Kopparapu, Thomas J. Fauchez, Avi M. Mandell, Eric T. Wolf, Vincent Kofman, Stephen R. Kane, Ted M. Johnson, Anmol Desai, Giada Arney, Jaime S. Crouse

    Published 2025-01-01
    “…One proposed method is the Planetary Infrared Excess (PIE) technique, which would enable the characterization of nontransiting planets by measuring the excess IR flux from the planet relative to the star’s spectral energy distribution. …”
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  16. 396

    Ultra‐Stable and Highly Luminescent Perovskite for Multi‐Color Ultraviolet Single‐Pixel Imaging by Bin Xu, Menglu Chen, Kenan Zhang, Jianbang Mu, Jie Cao, Hongyu Lv, Haoyu Zhang, Xingting Zhou, Feng Shi, Qun Hao

    Published 2025-07-01
    “…Abstract Ultraviolet (UV) detection and spectral imaging technology play a crucial role in information acquisition. …”
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    Article
  17. 397

    A multiscale Bayesian approach to quantification and denoising of energy-dispersive x-ray data by Pau Torruella, Abderrahim Halimi, Ludovica Tovaglieri, Céline Lichtensteiger, Duncan T L Alexander, Cécile Hébert

    Published 2025-01-01
    “…Energy dispersive x-ray (EDX) spectrum imaging yields compositional information with a spatial resolution down to the atomic level. …”
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    Article
  18. 398

    Hybrid Ag nanocone–Al2O3/Si nanopillar periodic array for broadband anti-reflection by Xiangyao Luo, Wen Sun, Zichen Xiong, Yue Chang, Wenyi Ren, Xinyu An, He Wang, Hongchang An

    Published 2025-08-01
    “…Abstract In this paper, a periodic array of Ag nanocones and Al2O3/Si nanopillars (AgNCs–Al2O3/SiNPs) deposited on a semiconductor substrate is designed, and their anti-reflection property is investigated systematically using the finite difference time domain method (FDTD). The obtained results show that the designed structure achieves a weighted reflectance as low as 1.99% over a broad spectral range of 400–1100 nm. …”
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  19. 399

    Ensemble models enhanced estimates of leaf chlorophyll from fractional order derivatives transformed spectra by Guangman Song, Yi Gan, Lingfeng Mao, Zhiwei Ge, Jiangshan Lai, Quan Wang

    Published 2025-12-01
    “…However, accurate estimation of leaf chlorophyll content through remote sensing remains challenging due to spectral baseline drift and the lack of generalized methods applicable over large spatial scales and diverse environmental conditions. …”
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    Article
  20. 400