Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Erik Képeš"'
Publikováno v:
Chemometrics and Numerical Methods in LIBS. :213-240
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef5b7f3082da951099d12a90f20493e0
https://doi.org/10.1002/9781119759614.ch9
https://doi.org/10.1002/9781119759614.ch9
Publikováno v:
Journal of Analytical Atomic Spectrometry. 37:1883-1893
Calibration datasets can be extended by using artificial neural networks to transform data collected on different LIBS systems. Hence, regression performance can be improved.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::084c761caa29d6fb6365b61918d6c362
https://doi.org/10.1039/d2ja00180b
https://doi.org/10.1039/d2ja00180b
Publikováno v:
Journal of Analytical Atomic Spectrometry. 36:1410-1421
Emission spectra yielded by laser-induced breakdown spectroscopy (LIBS) exhibit high dimensionality, redundancy, and sparsity. The high dimensionality is often addressed by principal component analysis (PCA) which creates a low dimensional embedding
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4bced99b90152a3414fd69fdd49cb28
https://doi.org/10.1039/d1ja00067e
https://doi.org/10.1039/d1ja00067e
Publikováno v:
ANALYST. 2020, vol. 146, issue 3, p. 920-929.
Ablation geometry significantly affects the plasma parameters and the consequent spectroscopic observations in laser-induced breakdown spectroscopy. Nevertheless, plasmas induced by laser ablation under inclined incidence angles are studied to a sign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d47bf8c3bdb3fdf9f688d1789a30e35d
https://hdl.handle.net/11012/196476
https://hdl.handle.net/11012/196476
Autor:
Erik Képeš, Frederik Schreckenberg, Vincent Motto-Ros, Cécile Fabre, Manoj Kumar Gundawar, Paul Prasse, Ludovic Duponchel, Jakub Vrábel, Xiaofeng Tan, Sven Connemann, Jozef Kaiser, Daniel Riebe, Rajendhar Junjuri, Pavel Pořízka
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy
Spectrochimica Acta Part B: Atomic Spectroscopy, Elsevier, 2020, 169, pp.105872. ⟨10.1016/j.sab.2020.105872⟩
Spectrochimica Acta Part B: Atomic Spectroscopy, 2020, 169, pp.105872. ⟨10.1016/j.sab.2020.105872⟩
Spectrochimica Acta Part B: Atomic Spectroscopy, Elsevier, 2020, 169, pp.105872. ⟨10.1016/j.sab.2020.105872⟩
Spectrochimica Acta Part B: Atomic Spectroscopy, 2020, 169, pp.105872. ⟨10.1016/j.sab.2020.105872⟩
International audience; We present results of the classification contest organized for the EMSLIBS 2019 conference. For this publication, we chose only the five best approaches and discussed their algorithm in detail. The main focus of the contest re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f5f6f17e7401c6fba77d10ab7bb59f2
https://hal.archives-ouvertes.fr/hal-02869477/document
https://hal.archives-ouvertes.fr/hal-02869477/document
Publikováno v:
Analytica chimica acta. 1135
The temporal evolution of laser-induced plasmas is studied in the orthogonal double-pulse arrangement. Both the pre-ablation mode (an air spark is induced above the sample surface prior to the ablation pulse) and the re-heating mode (additional energ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1138777ced3d1e606fde3e64bd2421f6
https://pubmed.ncbi.nlm.nih.gov/33070845
https://pubmed.ncbi.nlm.nih.gov/33070845
Publikováno v:
Journal of Analytical Atomic Spectrometry. 34:2411-2419
The analysis of laser-induced breakdown spectroscopy (LIBS) data heavily relies on statistical approaches. Recently, the application of another well-established statistical tool has started gaining prominence in LIBS analysis: bootstrapping. In the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::367e108bd8ad504a2ffc18eb38b066a6
https://doi.org/10.1039/c9ja00304e
https://doi.org/10.1039/c9ja00304e
Autor:
Erik Képeš, Jakub Vrábel, Ondrej Adamovsky, Sára Střítežská, Pavlína Modlitbová, Pavel Pořízka, Jozef Kaiser
Publikováno v:
Analytica Chimica Acta. 1192:339352
Laser-induced breakdown spectroscopy is often combined with a multivariate black box model-such as support vector machines (SVMs)-to obtain desirable quantitative or qualitative results. This approach carries obvious risks when practiced in high-stak
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a917bde297213d1c066a1be1946d5806
https://doi.org/10.1016/j.aca.2021.339352
https://doi.org/10.1016/j.aca.2021.339352
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 148:65-82
An implementation of a fast, robust, and effective algorithm is inevitable in modern multivariate data analysis (MVDA). The principal component analysis (PCA) algorithm is becoming popular not only in the spectroscopic community because it complies w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51829b3b64d80f90391c8e55f8d8cf2b
https://doi.org/10.1016/j.sab.2018.05.030
https://doi.org/10.1016/j.sab.2018.05.030
Publikováno v:
Journal of Analytical Atomic Spectrometry. 33:2107-2115
Spectra acquired by laser-induced breakdown spectroscopy comprise both a valuable analyte signal and an undesired background signal originating from various sources. The latter is commonly suppressed, at least partially, by gating of the signal acqui
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52c66cc657b2eddff0bd1e16f25546d1
https://doi.org/10.1039/c8ja00209f
https://doi.org/10.1039/c8ja00209f