Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Hamdallah Bearat"'
Publikováno v:
Zephyrus, Vol 84, Iss 0, Pp 183-203 (2019)
The Eastern Church complex at Khirbet et-Tireh comprises five distinct sections: an atrium, a narthex, a tripartite main hall –nave and two aisles–, three adjoining auxiliary rooms on the north, and finally four more auxiliary rooms along the sou
Externí odkaz:
https://doaj.org/article/5fa0bedea4aa4569ad98865042113546
Publikováno v:
GREDOS. Repositorio Institucional de la Universidad de Salamanca
instname
instname
The Eastern Church complex at Khirbet et-Tireh comprises five distinct sections: an atrium, a narthex, a tripartite main hall –nave and two aisles–, three adjoining auxiliary rooms on the north, and finally four more auxiliary rooms along the sou
Autor:
Denné Reed, Denis Geraads, René Bobe, Hamdallah Bearat, Shannon P. McPherron, Curtis W. Marean, Zeresenay Alemseged, Jonathan G. Wynn
Publikováno v:
Nature
Nature, Nature Publishing Group, 2010, 466, pp.857-860
Nature, Nature Publishing Group, 2010, 466, pp.857-860
The oldest direct evidence of stone tool manufacture comes from Gona (Ethiopia) and dates to between 2.6 and 2.5 million years (Myr) ago. At the nearby Bouri site several cut-marked bones also show stone tool use approximately 2.5 Myr ago. Here we re
Autor:
Deirdre Gormley, Andrew Chizmeshya, Hamdallah Bearat, Ryan Nunez, Michael J. McKelvy, Kyle D. Squires, Ray Carpenter, George Wolf
Publikováno v:
Environmental Science & Technology. 40:4802-4808
CO2 sequestration via carbonation of widely available low-cost minerals, such as olivine, can permanently dispose of CO2 in an environmentally benign and a geologically stable form. We report the results of studies of the mechanisms that limit aqueou
Publikováno v:
Journal of the American Ceramic Society. 85:742-748
Gas-phase magnesium hydroxide carbonation processes were investigated at high CO2 pressures to better understand the reaction mechanisms involved. Carbon and hydrogen elemental analysis, secondary ion mass spectrometry, ion beam analysis, X-ray diffr
Publikováno v:
Philosophical Magazine. 84:2711-2729
Environmental transmission electron microscopy has been used to probe the mechanisms that govern Mg(OH)2 dehydroxylation and rehydroxylation processes at the near-atomic level. Dehydroxylation and rehydroxylation rates for these in-situ observations
Publikováno v:
Materials Chemistry and Physics. 77:416-425
We present a density functional theory investigation of the decomposition of Mg(OH)2. Based on recent experiments indicating a lamellar dehydroxylation process we have calculated the energetics, elastic behavior and structural trends of a series of o
Autor:
Hamdallah Bearat
Publikováno v:
Archaeometry. 38:81-95
Around 90 samples of Roman wall painting dating from the first to the third century AD were analysed using different analytical techniques: X-ray diffraction, X-ray fluorescence, infrared spectrometry, scanning electron microscopy, energy dispersive