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Mostrando ítems 1031-1040 de 3526
Calibration method for confocal X-ray microanalysis with polychromatic excitation
(2015)
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 ...
An accurate UV/visible method to quantify proteins and nzymes:Impact of aggregation, buffer concentration and the nature of the standard
(Research Trends, 2011-10)
A simple, fast and low cost UV/visible based method to quantify proteins or enzymes is presented. This method avoids some drawbacks found using conventional techniques. Representative proteins and enzymes such as bovine ...
Estimation of the solubility in supercritical CO2 of alpha- and delta-tocopherol using Chrastil' model
(2020)
This work proposes a correlation methodology for solubilities (w(i)) of alpha-tocopherol and delta-tocopherol in supercritical CO2, and reports new experimental data at (40, 50, 60) degrees C and (9.8-33.6) MPa. The ...
Taming the control of chronology in ancient agricultural structures in the Calchaqui Valley, Argentina: Non-traditional data sets
(Academic Press Ltd - Elsevier Science Ltd, 2010-12)
The absolute chronology of the agricultural soil from organic matter has always been difficult to measure due to several reasons. In our work on the Prehispanic agriculture in the Calchaqui Valley - Argentina, however, an ...
Calculating autoecological data (optima and tolerance range) for multiple species with the ‘optimos.prime’ R package
(Wiley Blackwell Publishing, Inc, 2020-02)
The calculation of autoecological data, such as optima and tolerance ranges to environmental variables, can be useful to establish the distribution and abundance of the species. These calculations, although mathematically ...
A simple energy-based strategy for sensor orientation in borehole microseismic monitoring
(IOP Publishing, 2019-02)
Accurately determining the orientation of borehole sensors is of paramount importance for microseismic monitoring applications. We calculate the relative bearing angle that allows the orientation of borehole receivers for ...
Construcción de un conjunto de imágenes faciales con metadatos biométricos y rasgos étnicos de ecuatorianos
(2019-07)
Currently, Machine Learning techniques are increasingly used in various areas of science and society, its operation is based on the systematic collection and analysis of data that allow create prediction models.
Today, ...
Contribuição ao controle digital doparalelismo sem comunicação desistemas de energia ininterrupta
(Universidade Federal de Minas GeraisUFMG, 2009-09-18)
Uninterruptible Power Supplies are equipment employed to deliver continuous high quality power to critical loads, raising supply availability and reliability to levels much higher than those originally found in the public ...
Estimativa de concentração de material particulado em suspensão na atmosfera por meio da modelagem de redes neurais artificiais
(Universidade Federal de Minas GeraisUFMG, 2006-12-14)
The aim of this study was to predict the total particulate matter concentration in the main areas of Ipatinga region. The artificial neural networks (ANN) was the modelling tool used. This model is capable of predicting ...
Divergenome: uma plataforma bioinformática para o estudo da diversidade genética humana e aplicações na identificação de episódios de seleção natural na evolução humana
(Universidade Federal de Minas GeraisUFMG, 2011-01-24)
At this work we developed a management platform for data and projects from population genetics and genetic epidemiology fields called DIVERGENOME. It is composed of two functional components: A) a relational database, which ...