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FABIO LUIZ MELQUIADES

Universidade Estadual de Londrina

Londrina Parana, 87051-270

Brazil

  • Universidade Estadual de Londrina

SCHOLARLY PAPERS

8

DOWNLOADS

347

TOTAL CITATIONS

3

Scholarly Papers (8)

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1.

Spectroscopic Based Partial Least-Square Models to Estimate Soil Features

Number of pages: 38 Posted: 28 Apr 2022
Ezequiel José Novacoski, Ísis Kaminski Caetano, FABIO LUIZ MELQUIADES, Aline Marques Genú, Yohandra Reyes Torres and Pedro Pablo González Borrero
affiliation not provided to SSRN, affiliation not provided to SSRN, Universidade Estadual de Londrina, affiliation not provided to SSRN, affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 65 (916,100)
Citation 1

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soil classification, energy dispersive X-ray fluorescence, Fourier transform mid-infrared spectroscopy, photoacoustic spectroscopy, partial least-square-discriminant analysis

2.

Mine Tailings from Semi-Precious Rocks: Precursors of Environmental Stress in Fluvic Sediments

Number of pages: 35 Posted: 21 Mar 2022
Paulo Bairros, DENISE PARIZOTTO, LEONARDO ROGGEN E SILVA, Paulo Sergio Parreira, FABIO LUIZ MELQUIADES and FREDERICO FÁBIO MAUAD
affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Universidade Estadual de Londrina, Universidade Estadual de Londrina and affiliation not provided to SSRN
Downloads 59 (970,490)

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Mineral Prospecting, Ametista do Sul, Mineral Oxides, Geochemistry, WD-XRF.

3.

7be Measurements in Agricultural Soil Using a Low Resolution Detector

Number of pages: 11 Posted: 25 Apr 2025
Bruno Winicius Borsoi, Rodrigo Oliveira Bastos, Angelo Zanona Neto, Duvan Gil Rodríguez, João Marcos Lopes, Avacir Casanova Andrello, Marcelo Marques Lopes Muller, Cristiano André Pott and FABIO LUIZ MELQUIADES
affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, State University of Londrina, Universidade Estadual de Londrina, affiliation not provided to SSRN, affiliation not provided to SSRN and Universidade Estadual de Londrina
Downloads 54 (1,020,567)

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7Be, Soil Erosion, NaI(Tl)

4.

Metals Quantification in E-Cigarettes Liquids by Total Reflection X-Ray Spectrometry

Number of pages: 13 Posted: 01 Jun 2023
Gabriel Minto Faria, Tiago Dutra Galvão, Paulo Sergio Parreira and FABIO LUIZ MELQUIADES
Universidade Estadual de Londrina, Fisiologia Vegetal e Tecnologia de Alimentos, Universidade Estadual de Londrina and Universidade Estadual de Londrina
Downloads 45 (1,121,190)

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X-ray spectrometry, complex matrix, haevy metal, electronic cigarettes

5.

Spectral Deconvolution Approach for Beryllium-7 Detection: Evaluating Soil Redistribution with Nai(Tl) Detectors

Number of pages: 11 Posted: 24 Jun 2024
João Marcos Lopes, FABIO LUIZ MELQUIADES, Rodrigo Oliveira Bastos, José Francirlei Oliveira, Graziela Barbosa and Avacir Casanova Andrello
State University of Londrina, Universidade Estadual de Londrina, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN and Universidade Estadual de Londrina
Downloads 42 (1,157,785)
Citation 2

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Gamma-Rays Spectrometry, HPGe, NaI(Tl), Deconvolution, Soil Redistribution

6.

Calibration Transfer from HPGe to NaI(Tl) Detectors for Radionuclides Quantification

Number of pages: 12 Posted: 05 Nov 2025
João Marcos Lopes, FABIO LUIZ MELQUIADES, Rodrigo Oliveira Bastos, Angelo Zanona Neto and Avacir Casanova Andrello
State University of Londrina, Universidade Estadual de Londrina, affiliation not provided to SSRN, affiliation not provided to SSRN and Universidade Estadual de Londrina
Downloads 34 (1,304,549)

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adiation Detection, Calibration Transfer, Principal Components, Target Transformation Factor Analysis

7.

Data Fusion of Gamma and X-ray Spectra via ComDim for Soil Characterization

Number of pages: 15 Posted: 29 Oct 2025
João Marcos Lopes, José Vinicius Ribe, FABIO LUIZ MELQUIADES, José Francirlei de Oliveira, Graziela Barbosa and Avacir Casanova Andrello
State University of Londrina, State University of Londrina, Universidade Estadual de Londrina, affiliation not provided to SSRN, affiliation not provided to SSRN and Universidade Estadual de Londrina
Downloads 26 (1,372,601)

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Gamma-Ray Spectrometry, X-Ray Fluorescence, ComDim-PCA, Data fusion, Multi-sensor

8.

Local Magnetic Inhomogeneity and Weak Ferromagnetism in Al-Substituted Goethite (α-Fe₁₋ₓAlₓOOH)

Number of pages: 18 Posted: 06 Mar 2026
Daniel Farinha Valezi, Evelin B. Paes, FABIO LUIZ MELQUIADES, Ana Carolina Mantovani, Everton C. dos Santos, Adriele A. de Almeida, Marcelo Knobel, Julio Spadotto, Daina Arenas Buelvas and Eduardo Di Mauro
Universidade Estadual de Londrina, State University of Londrina, Universidade Estadual de Londrina, State University of Londrina, affiliation not provided to SSRN, affiliation not provided to SSRN, Universidade Estadual de Campinas (UNICAMP), affiliation not provided to SSRN, CEITEC - Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic and Universidade Estadual de Londrina
Downloads 22 (1,424,331)

Abstract:

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Goethite, α-(Fe, Al)OOH, Aluminum substitution, Weak ferromagnetism, Antiferromagnetism