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Identification of minerals and mineral pigments in lacquer by the comprehensive comparative analysis of spectroscopy information

期刊: SPECTROSCOPY LETTERS, 2021; 54 (6)

This article presents the results of a systematic investigation on the identification of minerals used in lacquers. Micro-Raman combined with Infrared......

Optical properties of colloidal crystals with structural colors on paper substrates using a rapid coating technology

期刊: SPECTROSCOPY LETTERS, 2021; 54 (4)

Structural colors generated by colloidal crystals offer a promising method to create large-scale nanostructures due to their stability in comparison w......

Color and spectrum dual-fidelity image codec-a new multispectral image codec based on color space values, visual trigonometric curves and principal component analysis to improve colorimetric and spectral accuracy

期刊: SPECTROSCOPY LETTERS, 2021; 54 (5)

An efficient multispectral image codec is proposed for high-fidelity color and spectrum reproduction with low storage. A nonlinear spectral model is f......

Plant identification of Beijing Hanshiqiao wetland based on hyperspectral data

期刊: SPECTROSCOPY LETTERS, 2021; 54 (5)

Hyperspectral data play an important role in monitoring and protecting wetlands because it not only offers high resolution and wide observation range ......

Identification of aflatoxin B1 in peanut using near-infrared spectroscopy combined with naive Bayes classifier

期刊: SPECTROSCOPY LETTERS, 2021; 54 (5)

Peanuts are easily contaminated by a variety of mycotoxins during growth, transportation, and storage, of which aflatoxin B1 is the most common. Aflat......

Simple hydrolysis synthesis of copper oxide and bismuth oxychloride composites and visible light photodegradation of ciprofloxacin

期刊: SPECTROSCOPY LETTERS, 2021; 54 (5)

In this paper, the high-performance photocatalytic copper oxide and bismuth oxychloride composite material is prepared with a simple hydrolysis method......

Spectroscopic diagnostic of electron density for four-level system by collisional excitation model

期刊: SPECTROSCOPY LETTERS, 2021; 54 (4)

For accurate electron density diagnostics of plasma, the spectral diagnostics for four-level system instead of three-level system by collision excitat......

Classification of typical tree species in a karst area of Guizhou Province based on principal component analysis and support vector machine

期刊: SPECTROSCOPY LETTERS, 2021; 54 (4)

The accurate identification of forest tree species is the basis for the utilization and protection of forest resources. In this study, we collected hy......

Feasibility of hyperspectral imaging as rapid detection tool for potassium sorbate in milk

期刊: SPECTROSCOPY LETTERS, 2021; 54 (4)

Detection of additives in milk is important, especially preservatives. Potassium sorbate was taken as an example to study the feasibility of hyperspec......

A novel serum protein purification technique combined with surface-enhanced Raman spectroscopy for liver cancer detection

期刊: SPECTROSCOPY LETTERS, 2021; 54 (2)

In this study, silver nanoparticles-based surface-enhanced Raman spectroscopy combined with a serum protein purification method was employed to screen......

Mine reclamation based on remote sensing information and error compensation extreme learning machine

期刊: SPECTROSCOPY LETTERS, 2021; 54 (2)

In view of the many shortcomings of traditional copper ore detection methods, this paper proposes a new method for copper ore content detection, which......

Relationship between the gyromagnetic anisotropy and tetragonal distortion for d (1) ions in octahedral clusters

期刊: SPECTROSCOPY LETTERS, 2021; 54 (3)

The gyromagnetic (g) factors of vanadium (IV) (V4+) tetragonally-distorted octahedra in 'bulk' (where g-anisotropy Delta g = g (//)-g (perpendicular t......

Hyperspectral characteristics and leaf area index monitoring of rice (Oryza sativa L.) under carbon dioxide concentration enrichment

期刊: SPECTROSCOPY LETTERS, 2021; 54 (3)

Leaf area index is a vital biological parameter, which is widely used to monitor plant growth, evaluate health status, and predict yield. Remote sensi......

A simple probe with visible color change for selective detection of cysteine

期刊: SPECTROSCOPY LETTERS, 2020; 53 (9)

In this work, we synthesized a simple fluorescent probe, which can selectively detect cysteine. With addition of cysteine, the probe solution showed m......

Implementation of emission spectroscopy on investigation of material ablation in high speed high temperature flow field

期刊: SPECTROSCOPY LETTERS, 2020; 53 (9)

To investigate the ablation process of a carbon steel model, emission spectroscopy was applied in a 20 MW arc-heater. 21 frames of spectral data were ......

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