ANALYSIS AND CALCULATION METHOD OF COMPOSITE MATERIALS SPECTRAL BRIGHTNESS CHARACTERISTICS by O. V. Boiprav, D. V. Stoler, T. V. Borbotko

“…A method for calculation and analysis of the spectral brightness of composite materials consisting of components combined in various proportions with known optical properties is described.…”
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A hyperspectral stealth material design method based on the composition and mixing spectral feature of desert soil by Xiaodong Ma, Biao Wei, Xiaolong Qing, Yaqin Wang, Lun Qi, Xueyu Wu, Le Yuan, Xiaolong Weng

“…Abstract In this study, we used desert soil from Gansu, China, as a sample to propose a method for designing hyperspectral stealth coatings against desert soil backgrounds within the spectral range of 400–2500 nm, and the corresponding coating was prepared. …”
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Galerkin’s Spectral Method in the Analysis of Antenna Wall Operation by Marian Wnuk

“…By applying the Galerkin spectral method, the problem was reduced to a system of algebraic equations for the coefficients of current distribution on metal elements of the antenna grid, considering the distribution of the electromagnetic field on Floquet harmonics. …”
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Forced vibration assessment of moderately thick carbon nanotube-reinforced composite plates by Reza Setayesh, Shahabeddin Hatami, Mojtaba Gorji Azandariani, Mohammad Zamani Nejad

“…These findings demonstrate the capability and efficiency of the spectral finite element method for analyzing carbon nanotube-reinforced composite plates.…”
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Fabrication and study of the structural and spectral properties of the composites (y) Mn0.6 Zn0.4 Fe2O4 + (1-y) PZT prepared by the powder technology method by Ismaeal K. Jasem, Abdul-Samee Fawzi Abdul-Aziz, Nibras Malallah Ibrahim

“… Ferrite-ferroelectric composites holds following chemical formula (y) Mn0.6 Zn0.4 Fe2O4 + (1-y) PZT with different weight rations (y=0.15, 0.30 and 0.45) are prepared by the powder technology method at annealing temperature (1000 °C) for (12hrs). …”
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Nested spectral analysis of brain functional networks in depression based on inner composition alignment by Jiahao Ding, Xiaoyu Xie, Bincheng Fu, Jianchun Hua, Jun Wang

“…To address the limitations of traditional phase-locked value methods in electroencephalography (EEG) functional connectivity analysis, such as loss of frequency-domain information and insufficient capture of nonlinear dynamics, this study proposes a time-domain permutation-based inner composition alignment network nested-spectral analysis framework for analyzing depression-related brain functional networks. …”
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Investigation of Criteria for Comparing of Natural and LED Radiation Spectral Distribution by P. S. Bogdan, E. G. Zaytseva, A. I. Stepanenko

“…To minimize the values of criteria are proposed additive and subtractive methods for calculating LED parameters. Their comparison allowed us to conclude that a more complex calculation algorithm, but higher performance for an additive technique than for a subtractive one with the same minimization results.It was found that to simulate the spectral composition of natural radiation using LEDs, it is most effective to use the criteria "standard deviations of the relative differences between the optical and visible spectral components of natural and LED radiation". …”
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A light-efficient and versatile multiplexing method for snapshot spectral imaging by David Andersson, Yupan Bao, Vassily Kornienko, Dean Popović, Elias Kristensson

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Machine learning methods for spectrally-resolved imaging analysis in neuro-oncology by T. A. Savelieva, I. D. Romanishkin, A. Ospanov, K. G. Linkov, S. A. Goryajnov, G. V. Pavlova, I. N. Pronin, V. B. Loschenov

“…No less mandatory are the methods of using spectrally resolved visualization based on mapping characteristics obtained from Raman spectra, but due to the smaller cross-section of the process, these methods are used ex vivo, as a rule, for urgent analysis of fresh tissue samples. …”
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Highly spectrally selective dual-layer cellulose-based composite material for daytime radiative cooling by Xitao Yang, Haoqun Hong, Haiyan Zhang, Xiaobin Hong

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Optimal Spectral Radiation Composition of a LED Phytolapm for Stimulating Carrot and Tomato Seed Development by A. A. Gubina, E. V. Levin, M. M. Romanovich, A. E. Degterev, N. O. Patokov, I. A. Lamkin, S. A. Tarasov

“…Optimal spectral composition and radiation power parameters ensuring effective growth of plants were determined.Results. …”
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Moisture Content and Aromatic Compounds Determination in Transformer Oil Using Spectral Method by Kozlov V.K., Kurakina O.E.

“…The aim of the work was to develop new methods for determining the aromatic compounds and water contents in the transformer oil in small quantities. …”
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A Novel THz Differential Spectral Clustering Recognition Method Based on t-SNE by Tie-Jun Li, Chih-Cheng Chen, Jian-jun Liu, Gui-fang Shao, Christopher Chun Ki Chan

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Fault diagnosis of planetary gearboxes based on bispectral composite spectral features of torsional vibration modulation signals by ZHANG Yibao, HU Lei, XU Yuandong, SONG Xinkai

“…Finally, the MSB optimal carrier band composite spectrum was constructed for the selected optimal carrier band as a fault diagnosis feature of the planetary gearbox.ResultsThe test results demonstrate that the proposed method can more intuitively reflect the fault state of the planetary wheel as well as the fault information, which verifies the effectiveness and superiority of the method in the planetary wheel fault diagnosis.…”
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Evaluation framework for the generation of continental bare surface reflectance composites by Paul Karlshoefer, Pablo d’Angelo, Jonas Eberle, Uta Heiden

“…Since several years, temporal composites of bare soil reflectances derived from multispectral satellite data are used as input for soil property modeling. …”
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Video Spectral Methods and Tools for Monitoring of Controlled Parameters of Forest Fires and Oil Spill Accidents by A. S. Sizikov, Y. V. Belyaev, I. M. Tsykman, A. P. Popkov

“…The main results of the creation of the domestic complex “Vizir” for measuring bidirectional spectropolarization reflection coefficients and brightness of natural and artificial objects were presented in the article. Its purpose, composition and main technical parameters were indicated.Spectral-polarization studies of the characteristics of samples that simulates objects (pollution) of natural (forest fires) and man-made (oil spills) emergencies were performed with the help of complex “Vizir” using polarizing nozzles under various conditions (angles of illumination, observation, pollution concentration, the time that passed since the contamination, the degree of wood thermal damage). …”
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The impact of LED lightning on the content of photosynthetic pigments in tomato leaves by T. V. Nikanovich, Yu. V. Trofimov, M. I. Barkun

“…Relevance and methods. We studied the influence of LED lighting of different spectral composition on the content of photosynthetic pigments in tomato leaves to identify the most optimal lighting option suitable for obtaining high-quality seedlings under controlled conditions. …”
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Small-size spectral features for machine learning in voice signal analysis and classification tasks by D. S. Likhachov, M. I. Vashkevich, N. A. Petrovsky, E. S. Azarov

“…The problem of developing a method for calculating small-sized spectral features that increases the efficiency of existing machine learning systems for analyzing and classifying voice signals is being solved.Methods. …”
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Influence of abrasive materials on the quality of analytical surfaces during preparation of samples for spectral analysis by M. V. Lagoyskaya

“…The article considers the possibility of contamination of the surface of steel samples with abrasive materials when preparing samples for determining the chemical composition on optical emission spectrometers.The standards for sample preparation methods describe in detail the methods of surface treatment, the materials used, and the requirements for the quality of the analyzed surface. …”
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Extending spectral methods to solve time fractional-order Bloch equations using generalized Laguerre polynomials by Danish Zaidi, Imran Talib, Muhammad Bilal Riaz, Md. Nur Alam

“…In this study, we address the time fractional-order Bloch equations by extending the spectral methods approach to find a solution. Our proposed extension is based on the newly introduced generalized fractional-order integral operational matrix of Laguerre polynomials (LPs) in generalized Riemann–Liouville sense. …”
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