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Development of a reference material for copper and iron in wine
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2008-12)
Reference materials are essential tools to achieve comparability and traceability between measurements. However, reference materials in food matrices are scarce. in this article, the development of a reference material for ...
Eigenvalue analyses for non-transposed three-phase transmission line considering non-implicit ground wires
(2012-12-11)
This paper presents a method for analyzing electromagnetic transients using real transformation matrices in three-phase systems considering the presence of ground wires. So, for the Z and Y matrices that represent the ...
Changes in cells's secretory organelles and extracellular matrix during endochondral ossification in the mandibular condyle of the growing rat
(1991)
The mandibular condyle from 20-day-old rats was examined in the electron microscope with particular attention to intracellular secretory granules and extracellular matrix. Moreover, type II collagen was localized by an ...
O apoio matricial como instrumento de cuidado na rede de atenção psicossocial
(Universidade Federal de Santa MariaBrasilUFSMCentro de Ciências da Saúde, 2018-11-12)
The mental health is a very wide, diverse and unique field of knowledge, therefore is
fundamental that professionals of reference in health of a given territory are supported by a
specialized team in the care. This study ...
Determination of Cr, Cu, Ni, Sn, Sr and Zn Mass Fractions in Geochemical Reference Materials by Isotope Dilution ICP-MS
(Wiley-blackwellHobokenEUA, 2013)
Target and matrix problems in the determination of trace elements in wood material by PIXE
(Elsevier, 1998)
Here, we present the analysis of wood to determine trace elements in tree rings. We have irradiated wood pieces directly, for thick target PIXE, and also thin samples obtained by chemical treatment of the wood material. ...
Calculus of the determinant of a matrix by Sarrus’ ruleCálculo del determinante de una matriz por la regla de Sarrus
(Instituto Superior de Formación y Recursos en Red para el Profesorado, 2016)
Robust control applied to power flow control in single-phase inverter with LCL filter, using droop control and D-stability
(2012-12-01)
This paper proposes a new methodology to control the power flow between a distributed generator (DG) and the electrical power distribution grid. It is used the droop voltage control to manage the active and reactive power. ...
Single real transformation matrices applied to double three-phase transmission lines
(Elsevier B.V. Sa, 2014)