2022
DOI: 10.3390/chemosensors10060220
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Classification of Aviation Alloys Using Laser-Induced Breakdown Spectroscopy Based on a WT-PSO-LSSVM Model

Abstract: It is well-known that aviation alloys of different grades show large differences in mechanical properties. At present, alloys must be strictly distinguished in the manufacturing plant because their close appearance and density are easily confused In this work, the wavelet transform (WT) method combined with the least squares support vector machine (LSSVM) is applied to the classification and identification of aviation alloys by laser-induced breakdown spectroscopy (LIBS). This experiment employed six different… Show more

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Cited by 10 publications
(3 citation statements)
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“…In addition, the fermentation process has strong nonlinear characteristics. In light of the favorable performance of LSSVM in solving small sample, nonlinear, and high-dimensional regression tasks [31] and its fast solution speed and robust fitting ability, this paper applied LSSVM to soft sensor modeling of Pichia pastoris fermentation.…”
Section: Improving Particle Swarm-least Squares Support Vector Machin...mentioning
confidence: 99%
“…In addition, the fermentation process has strong nonlinear characteristics. In light of the favorable performance of LSSVM in solving small sample, nonlinear, and high-dimensional regression tasks [31] and its fast solution speed and robust fitting ability, this paper applied LSSVM to soft sensor modeling of Pichia pastoris fermentation.…”
Section: Improving Particle Swarm-least Squares Support Vector Machin...mentioning
confidence: 99%
“…This technological marvel nds ubiquitous application in diverse domains, including industrial inspection, 1 deep-sea exploration, 2 geological exploration, 3 biomedicine, 4 food safety, 5 and preservation of cultural heritage. 6 Notably, in the realm of industrial inspection, it serves as a discerning instrument for coal analysis, 7 alloy categorization, 8 and metallurgical analysis. 9 In the eld of metallurgical analysis, steel stands as a paramount metallic substance widely utilized in both industrial and everyday settings.…”
Section: Introductionmentioning
confidence: 99%
“…Furthermore, the high brightness, high coherence, and low divergence exhibited by lasers make it easy for the laser beam to be focused at very high power over very long distances onto extremely small points [3], enabling long-distance detection to be possible. Since its introduction in the late 1980s, LIBS technology has been successfully applied in industrial diagnostics [4,5], agricultural testing [6,7], environmental protection [8][9][10], biomedical research [11][12][13], cultural heritage preservation [14,15], and various other fields.…”
Section: Introductionmentioning
confidence: 99%