Results 21 to 30 of about 491,465 (364)

Antigua fundición de plomo en el sitio inca de Curamba, departamento de Apurímac, Perú

Bulletin de l'Institut Français d'Études Andines, 2012
Since 16th century, the Inca site of Curamba, Department of Apurímac, in southern Peru, has been interpreted as a metallurgical center for processing silver ore. However, there was no physical evidence such as fragments, or other indicators of the use of
William E. Brooks, Luisa Vetter Parodi
doaj   +1 more source

Modelling of a miniature microwave driven nitrogen plasma jet and comparison to measurements [PDF]

, 2021
The MMWICP (Miniature MicroWave ICP) is a new plasma source using the induction principle. Recently Klute et al. presented a mathematical model for the electromagnetic fields and power balance of the new device. In this work the electromagnetic model is coupled with a global chemistry model for nitrogen, based on the chemical reaction set of ...
arxiv   +1 more source

Estudo Experimental e Teórico dos Processos no Plasma ICP-AES Não-Estacionário

Trends in Computational and Applied Mathematics, 2000
Foram experimentalmente estudadas as pulsações transversais da tocha de plasma com simetria cilíndrica ICP-AES (Inductively Coupled Plasma Atomic Emission Spectroscopy).
R. Toukhvatoulline, H. Bonadiman, M. Pieniz   +2 more
doaj   +1 more source

Electrochemical Dissolution of Iridium and Iridium Oxide Particles in Acidic Media: Transmission Electron Microscopy, Electrochemical Flow Cell Coupled to Inductively Coupled Plasma Mass Spectrometry, and X-ray Absorption Spectroscopy Study.

Journal of the American Chemical Society, 2017
Iridium-based particles, regarded as the most promising proton exchange membrane electrolyzer electrocatalysts, were investigated by transmission electron microscopy and by coupling of an electrochemical flow cell (EFC) with online inductively coupled ...
P. Jovanovič, N. Hodnik, F. Ruiz-Zepeda, I. Arčon, Barbara Jozinović, M. Zorko, M. Bele, Martin Šala, V. Šelih, S. Hočevar, M. Gaberšček   +10 more
semanticscholar   +1 more source

A geração química de vapor em espectrometria atômica Chemical vapor generation in atomic spectrometry

Química Nova, 2002
The historical development of atomic spectrometry techniques based on chemical vapor generation by both batch and flow injection sampling formats is presented.
Iracema Takase, Hugo Borges Pereira, Aderval S. Luna, Patrícia Grinberg, Reinaldo Calixto de Campos   +4 more
doaj   +1 more source

A Global Model Study of Plasma Chemistry and Propulsion Parameters of a Gridded Ion Thruster Using Argon as Propellant

Plasma, 2022
This work reports on the (zero-dimensional) global model study of argon plasma chemistry for a cylindrical thruster based on inductively coupled plasma (ICP) whose output has a system of two grids polarized with each other with direct current potential ...
Bernardo Magaldi, Júlia Karnopp, Argemiro da Silva Sobrinho, Rodrigo Pessoa   +3 more
doaj   +1 more source

Determination of Metals Content in Wine Samples by Inductively Coupled Plasma-Mass Spectrometry

Molecules, 2018
Knowledge about the metal content of wine is very important, for many reasons. Depending on the element, its quantity varies in wine from ng/L to mg/L.
J. Płotka-Wasylka, M. Frankowski, V. Simeonov, Ż. Polkowska, J. Namieśnik   +4 more
semanticscholar   +1 more source

Simultaneous detection of multi-elements in rapeseed by semi-digestion-inductively coupled plasma mass spectrometry

Liang you shipin ke-ji, 2020
In this paper, Semi-digestion-inductively coupled plasma mass spectrometry method was employed to detect concentration of Ca, Fe, Cu, Pb, Zn, Cd, Mn, Mg and As in rapeseed samples simultaneously.The condition of semi-digestion and inductively coupled ...
WEI Zheng-rong, YANG Wei, LI Gui-you, TANG Yi   +3 more
doaj   +1 more source

The Effect of Excited Species on the Collisional Energy of Argon Inductively Coupled Plasmas: A Global Model Study

Plasma, 2022
Global modeling of inductively coupled plasma (ICP) reactors is a powerful tool to investigate plasma parameters. In this article, the argon ICP global model is revisited to explore the effect of excited species on collisional energy through the study of
Júlia Karnopp, Bernardo Magaldi, Julio Sagás, Rodrigo Pessoa   +3 more
doaj   +1 more source

2D electromagnetic simulations of RF heating via inductive coupling in the SPIDER device [PDF]

arXiv, 2023
SPIDER is the prototype ion source of MITICA, the full-size neutral beam heating system conceived for the ITER tokamak. It includes eight drivers to heat and sustain the inductively coupled plasma (ICP). Owing to their near cylindrical symmetry, the coupling between the radio-frequency (RF) active currents and the source plasma is studied using a 2D ...
arxiv