Search alternatives:
spectral » special (Expand Search)
Showing 221 - 240 results of 431 for search 'spectral composition (method OR methods)', query time: 0.13s Refine Results
  1. 221

    Discrimination of some red sea coral reef species based on hyperspectral signature field data by Mostafa A. Khaled, Ali A. Abdelsalam

    Published 2025-06-01
    “…Results revealed distinct spectral patterns for each coral species. For instance, Acropora species such as A. austera, A. cytherea, A. pectinatus, A. pharaonis, and A. spicifera exhibited unique signatures in the blue and green regions, indicating differences in pigment composition or morphology. …”
    Get full text
    Article
  2. 222

    Research of the polyethylene packaging layer structure change in contact with a food product at exposure to ultraviolet radiation by O. B. Fedotova, N. S. Pryanichnikova

    Published 2021-04-01
    “…Using spectral methods of analysis, researches have been carried out on changes in the polyethylene layers structure in the film’s composition, multilayer films and combined packaging materials when exposed to pulsed ultraviolet radiation in a wide spectral range (irradiation with a pulsed xenon lamp). …”
    Get full text
    Article
  3. 223

    Cathodoluminescence properties of oxide and fluoride ceramics synthesized in the field of high-energy electrons flux by А.А. Karnaukhova, V.Y. Yakovlev

    Published 2024-12-01
    “…An investigation of the spectral and kinetic patterns of cathodoluminescence of ceramic samples of metal ox- ides (Ga2O3, Al2O3, Y2O3) and fluorides (MgF2, BaF2) obtained by radiation synthesis method was carried out. …”
    Get full text
    Article
  4. 224

    Numerical Study on Similarity of Plume’s Infrared Radiation from Reduced Scaling Solid Rocket by Xiaoying Zhang, Rui Li

    Published 2015-01-01
    “…The radiative transfer equation (RTE) is solved by the finite volume method (FVM) in infrared band 2~6 μm. The spectral characteristics of plume gases have been calculated with the weighted-sum-of-gray-gas (WSGG) model, and those of the Al2O3 particles have been solved by the Mie scattering model. …”
    Get full text
    Article
  5. 225

    IN VITRO RESPONSE OF COTINUS COGGYGRIA SCOP. TO THE SPETRAL RADIATION AND LEDS INTENSITY by Olga O. Zholobova, Irina V. Mogilevskaya

    Published 2024-10-01
    “…Choosing the best photomorphogenesis parameters in vitro on a hormone-free medium for C. coggygria as a perspective plant species for commercial uses. Materials and methods. The effect of 15 lighting options, namely 6 ratios of red (R), blue (B), and green (G) spectra, on the composition of LEDs on C. coggygria explants in vitro by methods used in microclonal propagation was studied. …”
    Get full text
    Article
  6. 226

    Use of Combined Irradiation in Grow Light by S. A. Rakutko, E. N. Rakutko, M. R. Ayupov

    Published 2020-06-01
    “…However, their spectral composition is not fully acceptable for grow light. …”
    Get full text
    Article
  7. 227

    On-site Determination of Lithium in Hot Spring Water by Portable Li-K Analyzer by Xiao LIU, Xiuchun ZHAN

    Published 2024-05-01
    “…In this study, the wavelength of the characteristic Li spectral line was set at 670.78nm. The analytical method for on-site determination of Li in hot spring water samples was established by a self-developed portable Li-K analyzer with a negative filter using the standard curve and standard addition methods. …”
    Get full text
    Article
  8. 228

    Signal Compensation of Moon Mineralogy Mapper (M3) Under Low-Illumination Conditions Using a CycleGAN-Based Network by Rui Ni, Fei Zhao, Tingyu Meng, Yanlei Du, Pingping Lu, Robert Wang

    Published 2025-01-01
    “…The efficacy of the proposed method is validated using real high SNR M3 spectral observations, with the performance of the compensated results comprehensively assessed across three dimensions: structural indicators, spectral indices, and spatial consistency analysis. …”
    Get full text
    Article
  9. 229

    Sustainable spectrophotometric determination of dextromethorphan and bupropion: A fourier self-deconvolution approach by Fotouh R. Mansour, Samar H. Elagamy, Omar M. Elserwi, Amira H. Kamal

    Published 2025-06-01
    “…The method was applied for determination of each drug in synthetic laboratory mixture prepared as the composition of their formulated tablet. …”
    Get full text
    Article
  10. 230

    GROWTH OF CuIn<sub>13</sub>S<sub>20</sub> SINGLE CRYSTALS AND STRUCTURES ON THEIR BASIC by V. V. Shatalova

    Published 2019-06-01
    “…Using the method of directional solidification (the vertical Bridgman method) single crystals CuIn13S20 were grown. …”
    Get full text
    Article
  11. 231

    Modeling of two-dimensional MoxW<sub>1−x</sub>S<sub>2y</sub>Se<sub>2(1−y)</sub> alloy band structure by N. Yu. Pimenov, S. D. Lavrov, A. V. Kudryavtsev, A. Yu. Avdizhiyan

    Published 2022-06-01
    “…In this regard, the purpose of this work is to theoretically determine the dependence of the band gap of four-component two-dimensional MoxW1–xS2ySe2(1–y) alloys on their morphological composition.Methods. The calculations were performed within the framework of the density functional theory using the Quantum Espresso software package. …”
    Get full text
    Article
  12. 232

    Rating of amplitudes of high harmonics in determining feeder with single-phase ground fault by A. I. Fedotov, L. V. Akhmetvaleeva, R. S. Basyrov, G. V. Vagapov, E. A. Fedotov

    Published 2020-04-01
    “…The aim of the paper is theoretical and experimental research of processes during the single-phase ground faults in electrical distribution grids of 10/06/35 kV with isolated neutral mode. The mathematical method of rationing is used for the analysis of the spectral composition of currents and voltages increasing the information content of the allocated higher harmonics of current and voltage. …”
    Get full text
    Article
  13. 233

    Chromatographic determination of volatile compounds of Achillea micranthoides Klok. et Krytzka by I. F. Duyun, S. V. Panchenko

    Published 2024-02-01
    “…The purpose of the work is to study the volatile compounds of the yarrow extract (Achillea micrantoides Klok. et Krytzka) and to establish their component composition. Materials and methods. The Thin-Layer Chromatography (TLC) method and Gas Chromatography-Mass Spectrometry (GC/MS) on an Agilent Technology 7890 B chromatograph were employed to determine the component composition of volatile compounds in Achillea micranthoides Klok. et Krytzka. …”
    Get full text
    Article
  14. 234

    Determination of Heating Value of Estonian Oil Shale by Laser-Induced Breakdown Spectroscopy by M. Aints, P. Paris, M. Laan, K. Piip, H. Riisalu, I. Tufail

    Published 2018-01-01
    “…The study is the first where the oil shale heating value is determined on the basis of LIBS spectra. The method for selecting the optimal number of spectral lines for ordinary multivariate least squares regression model is presented. …”
    Get full text
    Article
  15. 235

    An Efficient Computational Algorithm for the Nonlocal Cahn–Hilliard Equation with a Space-Dependent Parameter by Zhengang Li, Xinpei Wu, Junseok Kim

    Published 2025-06-01
    “…To efficiently solve the resulting partial differential equation, a Fourier spectral method is used in conjunction with a linearly stabilized splitting scheme. …”
    Get full text
    Article
  16. 236

    Characterization and Differentiation of <i>Candida auris</i> on Dixon’s Agar Using Raman Spectroscopy by Chrysoula Petrokilidou, Eleftherios Pavlou, Aristea Velegraki, Anna Simou, Ioanna Marsellou, Grigorios Filis, Ioannis D. Bassukas, Georgios Gaitanis, Nikolaos Kourkoumelis

    Published 2024-11-01
    “…The observed inter-individual variability within <i>C. auris</i>, coupled with the spectral overlap between <i>C. auris</i> subgroups and other <i>Candida</i> species, highlights a major challenge in differentiating closely related fungi due to their similar molecular composition. …”
    Get full text
    Article
  17. 237

    Identification of Chicken Bone Paste in Starch-Based Sausages Using Laser-Induced Breakdown Spectroscopy by Haoyu Li, Li Shen, Xiang Han, Yu Liu, Yutong Wang

    Published 2025-07-01
    “…Through processing methods such as normalization with reference spectral lines, selection of the signal of the second laser pulse at the same position, and electron temperature correction, the determination coefficients (R<sup>2</sup>) of each element’s spectral lines have significantly improved. …”
    Get full text
    Article
  18. 238

    Features of power consumption of electrical installations with a DC link by A. V. Petrov, V. E. Martusenko, K. K. Fidiyov, D. I. Sidel'nikov

    Published 2024-06-01
    “…Study of dependence of the level of non-sinusoidality of currents consumed by the rectification circuit when feeding a linear load on the degree of voltage ripple smoothing at the rectifier output.Materials and methods. The study is based on the analysis of the spectral composition of the load currents with a rectifier bridge at different capacitance of the smoothing capacitor at the output of the rectifier.Results and discussion. …”
    Get full text
    Article
  19. 239

    Interpretation of ATR-FTIR spectra of dental adhesives throughout simultaneous polymerization and solvent loss. by Arwa Almusa, António H S Delgado, Anne Margaret Young

    Published 2025-01-01
    “…This study developed new Fourier transform infrared (FTIR) spectroscopy methods to assess effects of drying level on the composition and polymerization kinetics of One-Step® (OS), OptibondTM Universal (OU) and G-Bond (GB) dental adhesives. 5 μL of each adhesive were placed in turn on an FTIR, Attenuated Total Reflectance (ATR) accessory, operating at 37ºC. …”
    Get full text
    Article
  20. 240