-
241
Discrimination of river sandbanks for sand mining in high-mineral regions using multispectral images
Published 2025-08-01“…This paper provides a novel method to detect river sandbank regions for sand mining using multi-spectral images without any labeled data, i.e. in unsupervised manner, over the seasons. …”
Get full text
Article -
242
Determination of Heating Value of Estonian Oil Shale by Laser-Induced Breakdown Spectroscopy
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 -
243
Interpretation of ATR-FTIR spectra of dental adhesives throughout simultaneous polymerization and solvent loss.
Published 2025-01-01“…The FTIR techniques developed could monitor process kinetics and demonstrate the large, highly significant effects of drying method on final polymerized dental adhesive composition and polymerization level.…”
Get full text
Article -
244
Electric Tunable Structures Based on BaZr<sub>x</sub>Ti<sub>1–x </sub>O<sub>3</sub> and BaSn<sub>x</sub>Ti<sub>1–x</sub>O<sub>3</sub> Solid Solutions for Microwave Applications
Published 2022-04-01“…These ferroelectric materials are promising in terms of losses and nonlinearity, and the formation of planar structures based on these materials on a dielectric substrate allows for a significantly higher level of operating power of the microwave device.Materials and methods. The crystal structure and phase composition of the obtained films were studied by X-ray diffraction using a DRON-6 diffractometer on the emission spectral line CuKa1 (λ = 1.5406 Å). …”
Get full text
Article -
245
Chromatographic determination of volatile compounds of Achillea micranthoides Klok. et Krytzka
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 -
246
On-site Determination of Lithium in Hot Spring Water by Portable Li-K Analyzer
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 -
247
Cathodoluminescence properties of oxide and fluoride ceramics synthesized in the field of high-energy electrons flux
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 -
248
Reactivity of cardiorespiratory system in bronchial asthma patients according to the tests with respiratory maneuvers performance
Published 2019-07-01“…Regulatory influences were determined based on the spectral analysis of heart rate (HRV) and respiration (RV) variability. …”
Get full text
Article -
249
Fluorescence Guided Raman Spectroscopy enables the training of robust support vector machines for the detection of tumour marker proteins
Published 2025-07-01“…Abstract Raman spectroscopy provides comprehensive biochemical information on a sample’s composition, yet it is often used to analyze aggregated spectra rather than specific shifts. …”
Get full text
Article -
250
Signal Compensation of Moon Mineralogy Mapper (M3) Under Low-Illumination Conditions Using a CycleGAN-Based Network
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 -
251
Study of Non-Isothermal Decomposition and Kinetic Analysis of 2,4-Dihydroxybenzoic Acid- Melamine-Formaldehyde Copolymer
Published 2010-01-01“…The copolymer has been characterized by UV-Visible, IR and 1H NMR spectral analysis. Thermogravimetric analysis was carried out to study the decomposition and various kinetic parameters. …”
Get full text
Article -
252
Analytical models of movement of wires of air high-voltage power transmission lines
Published 2022-08-01“…IT IS STRESSED that a complete picture of the state of an overhead line can be established by determining the spectral composition of the wire vibrations using mounted automated multi-parameter sensors with accelerometers as sensors. …”
Get full text
Article -
253
Copolymers of N-(4-bromophenyl)-2-methacrylamide with 2-hydroxyethyl methacrylate
Published 2007-09-01“…Monomer reactivity ratios for BrPMAAm (M1)-HEMA (M2) pair were determined by the application of conventional linearization methods such as Fineman-Ross (F-R), Kelen-Tüdõs (KT) and Extended Kelen-Tüdõs (EKT) and a nonlinear error invariable model method using a computer program RREVM. …”
Get full text
Article -
254
New Complex of Salinomycin with Hg(II)—Synthesis and Characterization
Published 2025-07-01“…Based on the results from the spectral analyses, the most probable structure of the complex was proposed.…”
Get full text
Article -
255
Development of Mid-Infrared Spectroscopy (MIR) Diagnostic Model for Udder Health Status of Dairy Cattle
Published 2025-07-01“…Three MIR spectral preprocessing methods, six modeling algorithms, and three different sets of MIR spectral data were employed in various combinations to develop several diagnostic models for mastitis of dairy cattle. …”
Get full text
Article -
256
Solid-state NMR at natural isotopic abundance for bioenergy applications
Published 2025-04-01“…We then delve into more advanced ssNMR approaches, including key spectral editing techniques, probing polymer dynamics, and various 2D methods applicable at natural abundance. …”
Get full text
Article -
257
GROWTH OF CuIn<sub>13</sub>S<sub>20</sub> SINGLE CRYSTALS AND STRUCTURES ON THEIR BASIC
Published 2019-06-01“…Using the method of directional solidification (the vertical Bridgman method) single crystals CuIn13S20 were grown. …”
Get full text
Article -
258
In situ high-temperature Raman spectroscopy for online EAF slag analysis
Published 2025-09-01“…The results demonstrate agreement between Raman spectral ratios and bulk slag chemistry, validating the method's capability to track compositional and structural changes under molten temperature. …”
Get full text
Article -
259
Synthesis, Spectroscopic Characterization and Biological Activities of Transition Metal Complexes Derived from a Tridentate Schiff Base
Published 2013-01-01“…The data confirm that the complexes have composition of ML2 type. The electronic absorption spectral data of the complexes propose an octahedral geometry around the central metal ion. …”
Get full text
Article -
260
Synthesis, Structural Studies of Some New Transition Metals Complexes of Semicarbazide hydro chloride Schiff Base Derivatives
Published 2013-09-01“…The structural features have been arrived from their elemental analyses, magnetic susceptibility, molar conductivity, IR, UV-Vis. and 1H NMR spectral studies. The data show that the complexes have composition of [M(L)2](NO3)2 and [Fe(L)2 (NO3)2](NO3) where the M=Co(II),Ni(II) and Cu(II) ;L=L1and L2 type. …”
Get full text
Article