Now showing items 1-10 of 165
Calibration uncertainty estimation for internal aerodynamic balance
Aerodynamic balances are employed in wind tunnels to estimate the forces and moments acting on the model under test. This paper proposes a methodology for the assessment of uncertainty in the calibration of an internal ...
Sensorless synchronization method for thin-film direct optical broadband monitoring system
(IOP PUBLISHING LTD, 2011)
Optical monitoring systems are necessary to manufacture multilayer thin-film optical filters with low tolerance on spectrum specification. Furthermore, to have better accuracy on the measurement of film thickness, direct ...
On the skew-normal calibration model
(ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD, 2010)
In this article, we present the EM-algorithm for performing maximum likelihood estimation of an asymmetric linear calibration model with the assumption of skew-normally distributed error. A simulation study is conducted ...
Method for marginal measurements of restorations: accessory device for toolmakers microscope.
Standardization of measurements for marginal fit of castings is critical. This study describes the fabrication of a device that allowed fixation of specimens on a Toolmakers microscope with identical conditions according ...
Calibration method for confocal X-ray microanalysis with polychromatic excitation
(Hindawi Publishing Corporation, 2015-01)
To apply the fundamental parameters method at the confocal setup the knowledge of the sensitivity of the spectrometer is required which depends on the characteristics of two X-ray lenses: one in the excitation channel and ...
Comparison of univariate and multivariate calibration for the determination of micronutrients in pellets of plant materials by laser induced breakdown spectrometry
(PERGAMON-ELSEVIER SCIENCE LTD, 2010)
The application of laser induced breakdown spectrometry (LIBS) aiming the direct analysis of plant materials is a great challenge that still needs efforts for its development and validation. In this way, a series of ...