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Active vibration control using delayed resonant feedback
(2013-09-01)
Delayed feedback (DF) control is a well-established technique to suppress single frequency vibration of a non-minimum phase system. Modal control is also a well-established technique to control multiple vibration modes of ...
Searching for s-Process-Enhanced Metal-Poor Stars
(CSIRO PUBLISHING, 2009)
We present preliminary results for the estimation of barium [Ba/Fe], and strontium [Sr/Fe], abundances ratios using medium-resolution spectra (1-2 angstrom). We established a calibration between the abundance ratios and ...
Limited effectiveness of artificial bird perches for the establishment of seedlings and the restoration of Brazil's Atlantic Forest
(Elsevier B.V., 2016-12-01)
Brazil's Atlantic Forest biome is severely degraded and fragmented throughout its range. Developing effective techniques to restore pasture and agriculture back to native vegetation is therefore a priority for legal and ...
Global well-posedness for two dimensional semilinear wave equations
(Universidad Nacuional de Colombia; Sociedad Colombiana de matemáticas, 2000)
We consider the initial value problem (IVP) for certain semilinear wave equations in two dimensions. It is shown that global well-posedness holds in spaces of lower regularity than that suggested by the energy space H1 x ...
Microwave interferometric technique for characterizing few mode fibers
(2014)
We propose and experimentally demonstrate a simple and accurate technique for measuring differential mode group delay (DMGD) in few mode fibers (FMF). A frequency-swept microwave signal is modulated on a filtered optical ...
Problematic feeding in newborn patient. Stomatological approach. Case report.
(Facultad de Odontología, 2012)
Analysis of effectiveness of three forest interventionist techniques and proposal of a new and integrated model of forest restoration
(2015)
We assessed the efficacy of three different forest intervention techniques, in terms of phytosociological and edaphic responses, that were implemented in 2007. In a farm where trees are planted and managed for cellulose ...
Técnicas geoestatísticas aplicadas ao mapeamento de variáveis limnológicas e quantificação da incerteza associada às estimativas
(2015-01-01)
Aim: This study aimed to map the concentrations of limnological variables in a reservoir employing semivariogram geostatistical techniques and Kriging estimates for unsampled locations, as well as the uncertainty calculation ...
Analysis of Different Staining Techniques for C4d Detection in Renal Allograft Biopsies
(ELSEVIER SCIENCE INC, 2009)
Capillary C4d deposition has been recognized as a marker of antibody-mediated rejection (AMR). Although the detection of capillary C4d by means of immunofluorescence (IF) in cryostat sections is well established, frozen ...