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Monitorização de íons nitrito nas lagoas de Extremoz, Jacumã, Carcará e Arituba nos anos 2020 e 2021.
(Universidade Federal do Rio Grande do NorteBrasilUFRNFarmáciaDepartamento de Análises Clínicas e Toxicológicas, 2022-01-25)
Industrial and domestic wastes are sources of nitrate and nitrite ions in water. The use of the
metropolitan region of the waters of Natal, both in the metropolitan region and in the rural area,
can contribute even more ...
Surface modifications by both anodic oxidation and ion beam implantation on electropolished titanium substrates
(2019-09-01)
The purpose of this work is to investigate the superficial induced characteristics on titanium surface by anodic oxidation and ion beam implantation, i.e. two surface modification technologies, by focusing on variations ...
Enhanced frequency upconversion in Er3+ doped fluoroindate glass due to energy transfer from Tm3+
(2002-12-01)
Energy transfer processes between Er3+ and Tm3+ were investigated examining the frequency upconversion emissions in a fluoroindate glass pumped at 790 nm. A 60-fold enhancement in the emission at ≈670 nm originating from ...
Higher order ionospheric effects in GNSS positioning in the European region
(Copernicus Gesellschaft Mbh, 2014)
Low energy electrons and swift ion track structure in PADC
(Pergamon-Elsevier Science Ltd, 2015-10)
The current work aims at providing an accurate description of the ion track-structure in poly-allyl dyglycol carbonate (PADC) by using an up-to-date Monte-Carlo code-called TILDA-V (a French acronym for Transport d'Ions ...
On the Energetics of Ions in Carbon and Gold Nanotubes
(Wiley VCH Verlag, 2016-01)
We investigate the insertion of halide and alkali atoms into narrow single-walled carbon nanotubes with diameters <9 Å by density functional theory; both chiral and non-chiral tubes are considered. The atoms are stored in ...
Ionisation probabilities in gas field ion sources
(2000)
Ionisation probabilities per unit of time, for a gas atom in the close vicinity of a supertip-gas field ion source, are analytically calculated and interpreted accordingly with the operational conditions of these devices. ...
Enhancement of wanlongmycin production by nitrogen ion beam implantation
(Pontificia Universidad Católica de Valparaíso, 2010)