Výsledky vyhledávání - "Brian J. Fryer"

Akademický článek

Particle backtracking improves breeding subpopulation discrimination and natal-source identification in mixed populations.

Autor: Michael E Fraker, Eric J Anderson, Reed M Brodnik, Lucia Carreon-Martinez, Kristen M DeVanna, Brian J Fryer, Daniel D Heath, Julie M Reichert, Stuart A Ludsin

Publikováno v: PLoS ONE, Vol 10, Iss 3, p e0120752 (2015)

We provide a novel method to improve the use of natural tagging approaches for subpopulation discrimination and source-origin identification in aquatic and terrestrial animals with a passive dispersive phase. Our method integrates observed site-refer

Externí odkaz: https://doaj.org/article/bdd9de26a09f4919b44e8bc2b1f95264

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Studies on laser ablation of silicon using near IR picosecond and deep UV nanosecond lasers

Autor: Joel E. Gagnon, M.E. Shaheen, Brian J. Fryer

Publikováno v: Optics and Lasers in Engineering. 119:18-25

Micromachining and other processing of different materials using lasers have been the focus of a large number of investigations in recent years. In this study, we investigate the interactions of two different lasers with crystalline silicon in air. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8415ad4ea91878eacab09ee9b8105c2d
https://doi.org/10.1016/j.optlaseng.2019.02.003

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Scanning electron microscope studies on laser ablation of solids

Autor: Brian J. Fryer, Joel E. Gagnon, M.E. Shaheen

Publikováno v: Laser and Particle Beams. 37:101-109

This study investigates the interaction of picosecond laser pulses with sapphire and brass in air using scanning electron microscopy. A picosecond laser system operating at a wavelength of 785 nm, pulse width of 110 ps, and variable repetition rate (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18e4c6a7b696e730d8a98529b315ad8e
https://doi.org/10.1017/s0263034619000132

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ICMMS-2: Assessment of Heavy Metals Content in The Agricultural Soils of Kafr El-Zayat Egypt Using Laser Ablation Inductively Coupled Plasma Mass Spectrometry and Inductively Coupled Plasma Optical Emission Spectroscopy

Autor: M.E. Shaheen, Brian J. Fryer, Asmaa F. Mankoula, Walid Tawfik, Farouk El-Mekawy, Joel E. Gagnon

Publikováno v: Egyptian Journal of Chemistry.

Recent years have witnessed a tremendous increase in contamination levels of heavy metals in the agricultural soils due to the uncontrolled release of chemicals and toxic substances from various human activities. The transfer of heavy metals to the g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::adcc162d9d1897d4f59929cdc4430556
https://doi.org/10.21608/ejchem.2021.55867.3185

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Experimental studies on ablation characteristics of alumina after irradiation with a 193-nm ArF excimer laser

Autor: Brian J. Fryer, Joel E. Gagnon, M.E. Shaheen

Publikováno v: The European Physical Journal Plus. 136

Laser ablation of alumina ceramics was performed in the ambient air using a 193-nm ArF excimer laser. The effect of the laser parameters (pulse repetition frequency, laser spot diameter, fluence, and the number of laser pulses) on the ablation behavi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d7edd6d48dead1e28cc5484c85129a7e
https://doi.org/10.1140/epjp/s13360-021-01132-5

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Determination of heavy metal content and pollution indices in the agricultural soils using laser ablation inductively coupled plasma mass spectrometry

Autor: Mohamed E, Shaheen, Walid, Tawfik, Asmaa F, Mankoula, Joel E, Gagnon, Brian J, Fryer, Farouk, El-Mekawy

Publikováno v: Environmental science and pollution research international. 28(27)

In this study, we determined the concentrations of heavy metals in the agricultural soils of Kafr El-Zayat city using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). The LA-ICP-MS performance was firstly evaluated by analyzin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::da1a63f53bd584afb991db2cee3fe9e9
https://pubmed.ncbi.nlm.nih.gov/33686601

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A simple and rapid method for preparing a diversity of powdered materials for analysis by laser ablation inductively coupled plasma mass spectrometry

Autor: Brian J. Fryer, M.E. Shaheen, Joel E. Gagnon, Ali Polat

Publikováno v: International Journal of Mass Spectrometry. 421:104-115

Laser ablation inductively coupled plasma mass spectrometry is increasingly being accepted as a leading method for elemental and isotopic microanalyses of a large number of solid matrices. The lack of suitable standards (i.e., concentration-, abundan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2081e8852e6fff4a7476806612c1fdd4
https://doi.org/10.1016/j.ijms.2017.05.013

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