Results 21 to 30 of about 7,878 (215)
Multivariate analysis of PIXE + XRF and PIXE spectral images
Journal of Analytical Atomic Spectrometry, 2021 Multivariate t-SNE analysis enables pixel identification with similar X-ray spectra for layer thickness determination and calculation of elemental concentrations.
Iva Božičević Mihalić +8 more
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ANALYTICAL RESULTS OF PROTON-INDUCED X-RAY EMISSION (PIXE) PROBE OF YORUBA POTTERY OBJECTS [PDF]
European Journal of Materials Science and Engineering, 2023 Two hundred and sixteen (216) Yoruba ceramic (pottery) objects in Ita Yemoo Museum collection, Ile-Ife, Nigeria were examined; a sample size of twenty–four (24) pottery objects, ten per cent (10%) of the pottery selected using systematic random sampling ...
Olufemi Joseph OLALEYE-OTUNLA +4 more
doaj +1 more source
Pix Proteins and the Evolution of Centrioles [PDF]
PLoS ONE, 2008 We have made a wide phylogenetic survey of Pix proteins, which are constituents of vertebrate centrioles in most eukaryotes. We have also surveyed the presence and structure of flagella or cilia and centrioles in these organisms, as far as is possible from published information.
Woodland, H. R., Fry, Andrew M.
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Mirror, Mirror … Reflections on the functionality of a small lead find from Acic Suhat (Baia, Tulcea county) [PDF]
Peuce, 2020 The paper presents a small circular mirror frame found in the rural settlement at Acic Suat. The mirror is made out of lead and decorated with radial lines on the frame, missing the reflective surface. Even though, such finds are numerous in the Danubian
Alina STREINU +2 more
doaj
ELEMENTAL ANALYSIS OF MARINE CORE SEDIMENT BELONG TO CENTRAL WESTERN BAY OF BENGAL BY USING PIXE [PDF]
Earth Science Malaysia, 2021 The aim of the present work is to estimate the accumulation of various elements related to the core sediment belong to the Krishna-Godavari marginal area with a nuclear analytical technique. Hence, a 4.12 m long marine sediment gravity core was collected
P.V.L. Narayana +3 more
doaj +1 more source
Origen y trayectoria de una técnica esquiva: el dorado sobre metal
Trabajos de Prehistoria, 2008 La investigación sobre la técnica del dorado al fuego con amalgama de mercurio durante la Prehistoria y Antigüedad no ha hecho más que comenzar debido a que su identificación y caracterización es totalmente dependiente de las técnicas analíticas ...
Alicia Perea +3 more
doaj +1 more source
X-Ray Spectrometry, 2005 Abstract Two selected examples of PIXE microanalysis in ecophysiology are presented. Studies of heavy metal distributions in mycorrhizal and non‐mycorrhizal roots of Plantago lanceolata showed different filtration mechanisms of Zn/Pb and Fe/Mn, both enabling plants to cope ...
Przybyłowicz, W. J. +10 more
openaire +2 more sources
PIXE and pXRF Comparison Analysis of a Mockup Canvas Painting
Semina: Ciências Exatas e Tecnológicas, 2023 For the purposes of comparison among different equipments and laboratories involved in atomic-nuclear methodologies applied in arts and archaeometry, a special mockup canvas painting was made with dozens of pigments of different colors and varnishes of ...
Carlos Roberto Appoloni +5 more
doaj +1 more source
X-ray Micro-CT based characterization of rock cuttings with deep learning
Applied Computing and GeosciencesRock cuttings from destructive boreholes are a common and cheaper source of drilling materials that can be used to determine underground geology compared to rock core samples.
Nils Olsen +4 more
doaj +1 more source