Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Aleš Hrdlička"'
Autor:
Ales Hrdlicka
A fundamental work on the peopling of the Americas This volume, originally published in 1922, constitutes the most complete summary of anthropological information on Florida up until that point. Not only does it consider all previous research on Flor
Publikováno v:
Journal of Analytical Atomic Spectrometry. 37:603-612
Samples with different mechanical and physical properties were measured by LIBS under diverse experimental conditions. The results were used to train a neural network. By means of the neural network, the optimisation process was significantly reduced
Autor:
Ladislav Čelko, Jakub Ondráček, David Pavliňák, Karel Novotný, Aleš Hrdlička, Zita Salajková, Michal Vojtisek-Lom, Viktor Kanický, David Prochazka, Jozef Kaiser, Markéta Holá, Jan Novotný, Pavel Pořízka
Publikováno v:
Journal of Analytical Atomic Spectrometry. 35:2893-2900
The changes in aerosol physical properties were studied by applying Nanoparticle-Enhanced Laser Ablation Inductively Coupled Plasma Mass Spectrometry (NE-LA-ICP-MS). This approach was compared to conventional LA-ICP-MS method. Analyte signal enhancem
Autor:
Karel Novotný, Jozef Kaiser, Pavel Pořízka, Aleš Hrdlička, Petr Sperka, Jan Novotný, David Prochazka
Publikováno v:
Journal of Analytical Atomic Spectrometry. 2020, vol. 35, issue 2, p. 293-300.
The goal of this work is to examine the effect of a third additional laser pulse on orthogonal double-pulse laser-induced breakdown spectroscopy (DP LIBS). Namely, a pre-ablation laser pulse and re-heating laser pulse were combined into triple-pulse
Autor:
Aleš Hrdlička, Jitka Hegrová, Martina Bucková, David Prochazka, Markéta Holá, Karel Novotný, Pavel Pořízka, Viktor Kanický, Jozef Kaiser
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 195:106488
Publikováno v:
PLASMA PHYSICS AND TECHNOLOGY. 6:95-98
We present diagnostics of plasma pencil discharge as alternative excitation source for analytical chemistry. The plasma pencil is special type of rf plasma nozzle at atmospheric pressure. Through this nozzle flows working gas argon with aerosol. The
Publikováno v:
Journal of Analytical Atomic Spectrometry. 34:2451-2458
Copper, zinc and sodium atomic line emissions in the plasma of a pencil discharge under the influence of easily ionizable elements (EIE), counterions and nitric acid were studied. These elements were introduced as the water solutions of nitrates and
Autor:
Jozef Kaiser, Jitka Hegrová, Jan Novotný, Lucia Sládková, David Prochazka, Pavlína Modlitbová, Viktor Kanický, Pavel Pořízka, Aleš Hrdlička, Karel Novotný
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 142:8-13
A LIBS equipment operating at 532 nm was optimized and used for sulfur determination in concrete samples. The influence of He atmosphere in a gas-tight chamber (1000–200 mbar) on S I 921.29 nm line sensitivity, signal-to-background and signal-to-no
Autor:
Jakub Klus, Alžběta Jebavá, Aleš Hrdlička, Pavlína Škarková, Karel Novotný, Přemysl Lubal, Jozef Kaiser, Pavel Pořízka, Zdeněk Farka
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 131:107-114
In this study, the feasibility of Quantum dots (QDs) 2D distribution mapping on the substrate by Laser-Induced Breakdown Spectroscopy (LIBS) was examined. The major objective of this study was to describe phenomena occurring after applying aqueous so
Autor:
Ladislav Čelko, Aleš Hrdlička, Lucia Sládková, David Prochazka, Jozef Kaiser, Karel Novotný, Pavel Pořízka, Michaela Remešová, Pavlína Škarková
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 127:48-55
In this work we studied the effect of vacuum (low pressure) conditions on the behavior of laser-induced plasma (LIP) created on a sample surface covered with silver nanoparticles (Ag-NPs), i . e . Nanoparticles-Enhanced Laser-Induced Breakdown Spectr