Synthesis of novel titania nanoparticles using corn silky hair fibres and their role in developing a smart restorative material in dentistry by Afsheen Mansoor, Emaan Mansoor, Ezza Mansoor, Efrah Mansoor, Atta Ullah Shah, Uzma Asjid, João Filipe Brochado Martins, Sami Ullah Khan, Paulo J. Palma

“…The main objective of this study was to synthesise cost-effective titania nanoparticles (TiO₂ NPs) from biowaste corn silky hair fibre. Methods: The titania nanoparticles (TiO₂ NPs) were characterised through x-ray diffraction; scanning electron microscopy; energy-dispersive spectroscopy; Fourier transform spectroscopy, and atomic force microscopy, as well as dynamic light-scattering to identify their phases, morphologies, dimensions, and chemical compositions. …”
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Determination of copper Ions (II) in Aqueous Solutions Using Organic Reagent 3-Hydroxy-4-[(2-hydroxy benzylidene) amino] naphthalene Sulphonic Acid-1 (HHBAN) by Spectrophotometric... by Mohammad Maarouf, Ammar Ismaiel

“…In this research, the possibility of forming a colored complex between copper (II) and the reagent 3-Hydroxy-4-[(2-hydroxy benzylidene) amino] naphthalene Sulphonic Acid-1 to determine copper (II) in aqueous solutions by spectrophotometric method was studied. This research aims to use the reagent to determine copper (II) in aqueous solutions by the Spectrophotometric methodand through the formation of a stable and colored complex, determine the limit of detection, study spectral properties for the complex, and then compare it with other organic reagents. …”
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Optical Transmission and Electro-physicalproperties оf Cd1 – xMnxTe Solid Solutions by E.S. Nykonyuk, Z.I. Zakharuk, A.I. Rarenko, A.S. Opanasyuk, V.V. Grynenko, P.M. Fochuk

“…The spectral transmission area was shifted in these crystals depending on the Mn composition.…”
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OBTAINING AND PROPERTIES OF AgInS2 FILMS by M. A. Abdullaev, D. A. Alkhasova

“…The optical transmittance and absorption were examined using MDR-2 monochromator in the wavelength range of 400-800 nm with the Keitley electrometer and FD-10G; we applied the spectral resolution of ± 1 meV. The electrical conductivity, Hall effect was measured by the four-point probe method with indium ohmic contacts. …”
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Interaction of methyl orange with cationic surfactant (DTAB) under the influence of anionic polyelectrolyte (NaCMC) in ethanol/water solvent mixtures: A UV–visible spectroscopic in... by Shiv Narayan Yadav, Summi Rai, Biswajit Sinha, Ajaya Bhattarai

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QUASI-DISTRIBUTED FIBER-OPTIC RECIRCULATING SYSTEM FOR TEMPERATURE MEASUREMENT BASED ON WAVELENGTH-DIVISION MULTIPLEXING TECHNOLOGIES by A. V. Polyakov, T. D. Prokopenkova

“…With the help of the developed mathematical model that takes into account the temperature dependence of the coefficient of linear expansion and Young’s modulus of the fiber, the spectral and temperature dependence of the refractive index, the chemical composition of the fibers, the type of metal coating system response function was calculated, which allows to evaluate the sensitivity and measurement accuracy. …”
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TECHNOLOGY OF CLEANING LOW-POTENTIAL ARTESIAN WATERS OF NORTH DAGESTAN FROM TOXIC COMPOUNDS by A. G. Kaymarazov

“…Arsenic compounds and humic acids was found in the most studied waters in amounts far exceeding World Health Organization (WHO) limiting rate for drinking water by spectral analysis methods (AAS, SPM). The sorbent based on DEAE-cellulose modified with Fe3+ ions was prepared and tested by us for cleaning of the waters containing the arsenic compounds in an amount of more than 700 mcg/dm3 and humic acids in an amount approximately equal to 200 mg/dm3. …”
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The Moon as a Cosmic-Ray Spectrometer: Prospects for MeV Gamma-Ray Observations by Tatsuki Fujiwara, Ellis R. Owen, Yoshiyuki Inoue, Manel Errando, Kohei Fukuda, Kazuhiro Nakazawa, Hirokazu Odaka, Keigo Okuma, Kentaro Terada, Naomi Tsuji, Yasunobu Uchiyama, Hiroki Yoneda, Ao Zhang

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Satellite-Derived Bathymetry Using Sentinel-2 and Airborne Hyperspectral Data: A Deep Learning Approach with Adaptive Interpolation by Seung-Jun Lee, Han-Saem Kim, Hong-Sik Yun, Sang-Hoon Lee

“…Two spectral input configurations were evaluated: the log-ratio of Bands 2 and 3, and raw RGB composite reflectance (Bands 2, 3, and 4). …”
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The influence of silicon content on the structure of Cu55Ni6Mn4Zn brazing alloy and on the structure and properties of brazed joints by Igor N. Pashkov, Magomed R. Gadzhiev, Stanislav A. Tavolzhanskiy, Tatiana A. Bazlova, Vyacheslav E. Bazhenov, Diana A. Katanaeva

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Modeling the penetration of oscillating impulse electromagnetic fields through the screen, made of superconducting materials with time dispersion1 by V. T. Erofeenko, V. F. Bondarenko

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Prediction Model of the Key Components for Lodging Resistance in Rapeseed Stalk Using Near-Infrared Reflectance Spectroscopy (NIRS) by Jie Kuai, Shengyong Xu, Cheng Guo, Kun Lu, Yaoze Feng, Guangsheng Zhou

“…By taking the advantage of NIRS, we developed a rapid method to determine the content of six key composition without crushing the stalk. …”
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THE EFFECTIVE MEDIUM THEORY AS A TOOL FOR ANALYZING THE OPTICAL PROPERTIES OF NANOCOMPOSITES by A. N. Yurasov, M. M. Yashin

“…A good qualitative and quantitative agreement of the experimental and model spectral dependences was observed. The dielectric permittivity values for Cu + Si nanocomposite were calculated by the Maxwell-Garnett method. …”
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Avocado fruit sorting by hyperspectral images by D. A. Metlenkin, R. A. Platova, Yu. T. Platov, O. V. Fedoseenko, O. V. Sadkova

“…Calibration models for determination of moisture and dry matter of avocado fruits were built based on the data of moisture measurement and hyperspectral images. The matrix of spectral data was formed by two methods: random selection of spectral signatures of HSIs from the whole surface of fruits or the image surface of HSIs of fruits (initial HSIs) as a region of interest (ROI). …”
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Discrimination of some red sea coral reef species based on hyperspectral signature field data by Mostafa A. Khaled, Ali A. Abdelsalam

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

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

“…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. …”
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Hyperspectral Band Selection for Crop Identification and Mapping of Agriculture by Yulei Tan, Jingtao Gu, Laijun Lu, Liyuan Zhang, Jianyu Huang, Lin Pan, Yan Lv, Yupeng Wang, Yang Chen

“…Different crops, as well as the same crop at different growth stages, display distinct spectral and spatial characteristics in hyperspectral images (HSIs) due to variations in their chemical composition and structural features. …”
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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

“…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. …”
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Laser-induced Breakdown Spectroscopy Based on Pre-classification Strategy for Quantitative Analysis of Rock Samples by Weiheng KONG, Lingwei ZENG, Yu RAO, Sha CHEN, Xu WANG, Yanting YANG, Yixiang DUAN, Qingwen FAN

“…Employing distinct preprocessing methods for different elemental compositions within various rock types helps mitigate spectral discrepancies caused by matrix effects, reduces spectral fluctuations and data noise, and enhances the accuracy and stability of quantitative analysis. …”
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