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Rigid centres on the center manifold of tridimensional differential systems
(2021-01-01)
Motivated by the definition of rigid centres for planar differential systems, we introduce the study of rigid centres on the center manifolds of differential systems on ℝ3. On the plane, these centres have been extensively ...
Synthesis, Characterization, Luminescence and Defect Centres in CaYAl(3)O(7):Eu(3+) Red Phosphor
(SPRINGER/PLENUM PUBLISHERS, 2011)
CaYAl(3)O(7):Eu(3+) phosphor was prepared at furnace temperatures as low as 550A degrees C by a solution combustion method. The formation of crystalline CaYAl(3)O(7):Eu(3+) was confirmed by powder X-Ray diffraction pattern. ...
From research to operational training: Conceptual Models empowering young professionals
(WMO Virtual Laboratory for Education and Training in Satellite Meteorology, 2020)
Luminescence and defect centres in Tb(3+) doped LaMgAl(11)O(19) phosphors
(ELSEVIER SCIENCE BV, 2010)
Terbium (Tb) doped LaMgAl(11)O(19) phosphors have been prepared by the combustion of corresponding metal nitrates (oxidizer) and urea (fuel) at furnace temperature as low as 500 C Combustion synthesized powder phosphor was ...
Synthesis, characterisation, luminescence and defect centres in solution combustion synthesised CaZrO3:Tb3+ phosphor
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
Tb3+ doped CaZrO3 has been prepared by an easy solution combustion synthesis method. The combustion derived powder was investigated by X-ray diffraction, Fourier-transform infrared spectrometry and scanning electron ...
Luminescence and defect centres in MgSrAl(10)O(17):Sm(3+) phosphor
(ELSEVIER SCIENCE BV, 2010)
An efficient reddish orange emission MgSrAl(10)O(17):Sm(3+) phosphor was prepared by the combustion method. The phosphor has been characterized by X-ray diffraction, scanning electron microscopy, thermogravimetric analysis ...
Influences of the load centre of gravity on heavy vehicle acceleration
(Inderscience Enterprises Ltd, 2001-01-01)
The aim of this paper is to analyse the influence of the load centre of gravity on heavy vehicle acceleration. This analysis is done through a method in which a vehicle centre of gravity map is used. A model for the driving ...
Influences of the load centre of gravity on heavy vehicle acceleration
(Inderscience Enterprises Ltd, 2001-01-01)
The aim of this paper is to analyse the influence of the load centre of gravity on heavy vehicle acceleration. This analysis is done through a method in which a vehicle centre of gravity map is used. A model for the driving ...
Isolation facilities for covid-19: towards a person centred approach
(BMJ Publishing Group, 2022)
Chuan De Foo and colleagues argue that isolation facilities have the potential to interrupt the transmission of infectious agents, particularly in the earlier stages of infectious disease outbreaks, but they must deliver ...