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Integration of FTIR Spectroscopy, Volatile Compound Profiling, and Chemometric Techniques for Advanced Geographical and Varietal Analysis of Moroccan Eucalyptus Essential Oils
Published 2024-11-01“…This study aims to develop a reliable method for identifying the geographical origin and variety of eucalyptus oil samples through the application of advanced analytical techniques combined with chemometric methods. …”
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Land cover changes in grassland landscapes: combining enhanced Landsat data composition, LandTrendr, and machine learning classification in google earth engine with MLP-ANN scenari...
Published 2024-12-01“…The LandTrendr (LT) algorithm was used in GEE to collect ground control points in no-change areas automatically. We used a method based on Multilayer Perceptron-Artificial Neural Networks (MLP-ANNs) to forecast 2040 land cover. …”
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205
Heavy Metals in Glaciers and River Water of the Basin of the Bezengi Cherek River During Intense Graciation Degradation
Published 2022-10-01“…The determination of HM content in ice samples and river waters was carried out from 2003 to 2010 at the High Mountain Geophysical Institute by the method of emission spectral analysis. Sample analysis 2012–2021 were produced by the atomic absorption method on an MGA-915 spectrometer.Results and discussion. …”
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Forensic Analysis of Marijuana: Approaches to Establishing Belonging to Previously Separated Plant Mass
Published 2025-01-01“…The possibility of interpreting spectral data using discriminant analysis of projections on latent structures is shown. …”
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208
Inter-annual changes and growth trends mapping of mangrove using Landsat time series imagery
Published 2025-12-01“…In this study, a novel mangrove index, named the Composite Mangrove Index (CMI), was developed to map and assess the growth trends of mangroves, based on the truth that the spectral-temporal features of mangrove wetland environment related to greenness, moisture, and bare soil. …”
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209
National-scale mapping topsoil organic carbon of cropland in China using multitemporal Sentinel-2 images
Published 2025-04-01“…First, a new time-series bare soil extraction method, the Two-Dimensional Bare Soil Separation Algorithm, was applied, utilizing Sentinel-2 images from 2018 to 2022 to generate a continuous spectral reflectance composite. …”
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210
Synthesis of novel titania nanoparticles using corn silky hair fibres and their role in developing a smart restorative material in dentistry
Published 2025-01-01“…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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Prediction Model of the Key Components for Lodging Resistance in Rapeseed Stalk Using Near-Infrared Reflectance Spectroscopy (NIRS)
Published 2019-01-01“…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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213
THE EFFECTIVE MEDIUM THEORY AS A TOOL FOR ANALYZING THE OPTICAL PROPERTIES OF NANOCOMPOSITES
Published 2018-04-01“…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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214
Avocado fruit sorting by hyperspectral images
Published 2023-04-01“…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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Laser-induced Breakdown Spectroscopy Based on Pre-classification Strategy for Quantitative Analysis of Rock Samples
Published 2023-08-01“…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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216
Hyperspectral Band Selection for Crop Identification and Mapping of Agriculture
Published 2025-02-01“…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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217
Dead Sea Stromatolite Reefs: Testing Ground for Remote Sensing Automated Detection of Life Forms and Their Traces in Harsh Environments
Published 2025-05-01“…In an effort to characterize the biosignatures and chemical composition inherent to stromatolites, we created a spectral classification scheme for distinguishing between stromatolites and their bedrock environment—typically carbonatic rocks, mostly dolomites. …”
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218
Material synthesis and evaluation of metrological characteristics of potassium fluozirconate certified reference material
Published 2017-05-01“…Research methods: X-ray diffraction, differential scanning colorimetry, thermogravimetric analysis, atomic-emission spectral analysis with arc excitation, mass spectral analysis, X-ray fluorescence analysis. …”
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219
Transformer-Based Power Conversion System with Synchronous Adjustment of Modulated Inverters
Published 2018-04-01“…Modification of algorithms of space-vector modulation for transformer-based system with several converters allows providing an improvement of spectral composition of winding voltages of the system. …”
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220
Exploring the structural variability in developing wheat grains using autofluorescence multispectral imaging at the macroscopic scale
Published 2025-06-01“…The images were analyzed using principal component analysis of large image series (large PCA). This chemometric method enables the quantification of the variability, its localization, highlighting the associated spectral characteristics and their attribution to chemical compounds.ResultsRegional and temporal heterogeneity was revealed. …”
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