X- ray Fluorescence Spectral Denoising Analysis Based on the Russian Roulette Optimized Wavelet Algorithm

Article Chemistry, Analytical

Variational Mode Decomposition Weighted Multiscale Support Vector Regression for Spectral Determination of Rapeseed Oil and Rhizoma Alpiniae Offcinarum Adulterants

Xihui Bian et al.

Summary: This study proposes a weighted multiscale support vector regression method based on variational mode decomposition for food and herb analysis. The method decomposes the spectra into discrete mode components, builds sub-models using support vector regression, and obtains the final prediction by averaging the predictions of the sub-models. Experimental results show that the method has potential in model accuracy.

BIOSENSORS-BASEL (2022)

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Article Instruments & Instrumentation

Quantitative analysis of trace elements of silver disturbed by pulse pile up based on energy dispersive X-ray fluorescence (EDXRF) technique

Jun Hao et al.

Summary: A new approach was proposed to reduce the impact of pulse pile-up in detecting trace elements in refined copper, resulting in a robust quantitative model with improved accuracy and detection limit. The model, with an R-2 of 0.9927 and a detection limit of 0.0034 wt%, can be applied in metallurgical industry, power plants, and research on micro-structure enhancement mechanisms.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT (2021)

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Article Multidisciplinary Sciences

High-resolution X-ray luminescence extension imaging

Xiangyu Ou et al.

Summary: The research demonstrates a flat-panel-free, high-resolution, three-dimensional imaging approach using lanthanide-doped nanomaterials and flexible substrates, termed X-ray luminescence extension imaging.

NATURE (2021)

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Article Green & Sustainable Science & Technology

EDXRF analysis and risks assessment of potentially toxic elements in sand fraction (tailing) of Nigerian oil sands

Festus Mayowa Adebiyi et al.

Summary: The elemental composition of sand fraction of Nigerian oil sand was analyzed to assess human and ecological risks. The study found higher elemental concentrations in the sand fractions compared to Nigerian oil sands and bitumen, indicating potential environmental degradation and health risks upon indiscriminate disposal of tailings.

ENERGY ECOLOGY AND ENVIRONMENT (2021)

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Article Biochemistry & Molecular Biology