Published in Physica Scripta
With the increasing use of radioactive materials in various sectors, effective radiation shielding has become a critical concern. The present study explores the potential of bismuth borate glasses doped with gold nanoparticles for gamma-ray shielding applications. Glass samples with a base composition of 30Bi2O3:70B2O3, containing varying concentra...
Complex 1 [(C^C)Au(dppv)]PF6 (dppv = cis-1,2-diphenylphosphinoethylene) is reported to react efficiently and selectively with aliphatic and aromatic thiols in the presence of a base. This methodology enables the smooth introduction...
Nine glazed porcelain artifacts bearing the coat of arms of France, from King Louis XV tableware orders, were analysed at the laboratory or in their conservation secure room. Based on the experience acquired in the study of 18th century European and Chinese porcelain using mobile XRF (pXRF) and Raman microspectroscopy, a comparison of the impuritie...
Published in IOP Conference Series: Earth and Environmental Science
In this paper, Mg/Al layered double hydroxide (LDH) was prepared via the co-precipitation method and used as an adsorbent of gold (AuCl4−) with Fe3+ as the competitor ion in the aqueous solution. We conducted an adsorption test for single (without competitor) and binary (presence competitor) solutions. The adsorbent was characterized using Fourier ...
Published in Physica Scripta
Borate-derived radiation shielding glasses have been thoroughly explored, yet the effects of gold nanoparticle (GNP) dispersion on sodium borate glasses remain unstudied. This study investigates the impact of GNP dispersion and varying GNP concentrations on the radiation shielding properties and other parameters of sodium borate glass. All the glas...
Un nuevo torques de oro ha sido adquirido por la Junta de Extremadura y ya se expone en el Museo Arqueológico Provincial de Badajoz. Hemos efectuado un estudio micro-topográfico mediante técnicas de observación (MO) y análisis (FRX) con el objetivo de reconstruir la biografía de la pieza. En origen era un torques anular, de aro doble, con pieza de ...
L’objectif de notre étude est d’analyser la dynamique d’occupation des terres. Pource faire, des données primaires et secondaires sont utilisées. Au total 384 ménagesont été enquêtés par des questionnaires afin d’apprécier la perception descommunautés locales cette dynamique. Huit entretiens ont été réalisés avec lesautorités locales. Aussi des ima...
Tato bakalářská práce se zabývá komparativní analýzou kryptoměn, akcií a komodit jako investičních nástrojů. V teoretické části práce jsou představeny základní principy a historie jednotlivých investičních nástrojů, včetně technologického zázemí a regulace. Praktická část práce se zabývá analýzou historických dat a trendů, vlivu makroekonomických u...
Published in American Mineralogist
The conditions of pyrite (Py) stability inform the extent of S mobility during prograde metamorphism, the formation of orogenic Au deposits, and the S cycle in subduction zones. The variables that affect Py stability and chalcophile element mobility are investigated in the Pacific Rim Terrane of Vancouver Island, Canada, where sulfide-bearing carbo...
Published in Frontiers in Astronomy and Space Sciences
Using the high-rate phase and amplitude scintillation data from FORMOSA7/COSMIC two mission and back-propagation method, we geolocate plasma irregularities that cause scintillations. The results of geolocation are compared with the NASA GOLD UV image data of plasma bubbles. The root mean square of the zonal difference between estimated locations of...
