Now showing items 1-10 of 33
Biospeckle activity in coffee seeds is associated non-destructively with seedling quality
Seeds age during storage, resulting in a decline in germination and seedling quality. Seed quality tests are important to monitor this decline. However, such tests are usually destructive and require large seed numbers and ...
Biospeckle Activity Evolution of Strawberries
(Scientific Online, 2014-06)
In this work, we measured the biospeckle activity of strawberries (fragaria × ananassa) with two recently developed algorithms. We observed an important diminution of speckle activity within time periods of 72 h. We tested ...
Determination of maize hardness by biospeckle and fuzzy granularity
In recent years there has been renewed interest in the development of novel grain classification methods that could complement traditional empirical tests. A speckle pattern occurs when a laser beam illuminates an optically ...
Laser speckle techniques in quality evaluation of orange fruitsLaser speckle aplicado a avaliação de qualidade de laranjas
(Departamento de Engenharia Agrícola - UFCG, 2005)
Modelo experimental para o estudo do comportamento optico da parede abdominal e sua interação com um material protetico por biospeckle : trabalho experimental em ratosOptical behavior of the abdominal wall and its interaction with a synthetic material in the surgery of the incisional hernias: experimental study in rats
Dynamic speckle study of microbial growth
In this work we present a characterization of yeast dynamic speckle activity during growth in an isolated agar culture medium. We found that it is possible to detect the growth of the microorganisms even before they turn ...
Light intensity independence during dynamic laser speckle analysis
(Elsevier Science, 2016-05)
We explore some different normalizations of current dynamic laser speckle activity measures searching for their performance with respect to the illumination inhomogeneity of the samples. Inertia Moment and Average Value ...