Buscar
Mostrando ítems 1-10 de 191
Design keys for paper-based concentration gradient generators
(Elsevier Science, 2018-08)
The generation of concentration gradients is an essential operation for several analytical processes implemented on microfluidic paper-based analytical devices. The dynamic gradient formation is based on the transverse ...
Surface Gradient Approach for Occlusion Detection Based on Triangulated Irregular Network for True Orthophoto Generation
(Ieee-inst Electrical Electronics Engineers Inc, 2018-02-01)
Aerial images of urban areas have been used as base information for a diversity of applications. Considering the great quantity of tall buildings in these areas, it is important to have a method to automatically generate ...
Patterning and Modeling Three-Dimensional Microfluidic Devices Fabricated on a Single Sheet of Paper
(American Chemical Society, 2019-05)
This work describes a method to fabricate three-dimensional paper microfluidic devices in one step, without the need of stacking layers of paper, glue, or tape. We used a nontransparent negative photoresist that allows ...
Longitudinal gradient coils with enhanced radial uniformity in restricted diameter: Single-current and multiple-current approaches
(Academic Press Inc Elsevier Science, 2017-03)
An important requirement for a gradient coil is that the uniformity of the generated magnetic field gradient should be maximal within the active volume of the coil. For a cylindrical geometry, the radial uniformity of the ...
Avaliação da colheita de energia termoelétrica para microssatélites
(2019)
A disponibilidade de energia e o método de captação é diretamente relacionada ao ambiente ao qual os sistemas estão expostos. Para microssatélites, a única fonte disponível é a energia solar. A forma utilizada para obtenção ...
Transverse solute dispersion in microfluidic paper-based analytical devices (μPADs)
(Royal Society of Chemistry, 2018-05)
The transport of molecules and particles across adjacent flow streams is a key process in several operations implemented in microfluidic paper-based analytical devices (μPADs). Here, the transverse dispersion of analytes ...
Single standard calibration and data processing in flow injection titration based on concentration gradients
(Taylor & Francis LtdAbingdonInglaterra, 1997)
A comparison of gradient versus color and texture analysis for lane detection and tracking
(IEEE, 2009)
Accurate lane detection in real-time is a critical task in autonomous vehicle guidance and lane departure warning for driver assistance. Existing vision-based approaches rely mostly on some analysis of the spatial gradient ...
Bird traits in urban–rural gradients: how many functional groups are there?
(Springer, 2013-06)
Recent analyses of communities have examined the variation of species traits along environmental gradients. These papers highlight a combination of several traits, instead of variation of individual traits, to better explain ...