Image analysis tools for the monitoring of patients on long term haemodialysis programmes

Author(s):  
S.L. Smith
2019 ◽  
Vol 6 ◽  
Author(s):  
Ivor D. Williams ◽  
Courtney S. Couch ◽  
Oscar Beijbom ◽  
Thomas A. Oliver ◽  
Bernardo Vargas-Angel ◽  
...  

2020 ◽  
Vol 15 ◽  
pp. 180
Author(s):  
D. L. Patiris ◽  
K. Blekas ◽  
K. G. Ioannides

The expansion of TRIAC to TRIACII code will be described. Both codes have been developed for recognition and parameters measurements of particles’ tracks from images of Solid State Nuclear Track Detectors. While the first program considers the tracks as circles, TRIACII code, using image analysis tools, counts the number of tracks and depending on the current working mode classifies them according to their radii (Mode I- circular tracks) or their axis (Mode II- elliptical tracks), their mean intensity value (brightness) and their orientation. Hough transform techniques are used for the estimation of tracks’ number and their parameters which are able to give results even for overlapping tracks. The new program has been used for radon’s progeny behavior and alpha particles’ energy discrimination.


Author(s):  
Tim Rademacher ◽  
Bijan Seyednasrollah ◽  
David J. Basler ◽  
Jian Cheng ◽  
Tessa Mandra ◽  
...  

2020 ◽  
Vol 856 ◽  
pp. 36-42
Author(s):  
Chuleeporn Paa-Rai

This work investigates the effect of rejuvenation heat treatment, with double-step solution treatment at the temperature from 1150 °C to 1200 °C, on the recovered microstructure of IN-738 cast superalloy. The superalloy has been long-term exposed as a turbine blade in a gas turbine prior to this study. After double solution treatment and aging at 845 °C for 12 h and 24 h, the recovered microstructures were examined by using a scanning electron microscope. Coarse γ΄ particles, that have presented in damaged microstructures, could not be observed in the samples after the rejuvenation heat treatment. In addition, the image analysis illustrates that the reprecipitated γ΄ particles in the samples with double-step solution treatments increase significantly in sizes during aging than that in the samples with the single-step solution treatment. Furthermore, the measurement of the samples hardness presents that the as-receive sample hardness is improved after rejuvenation heat treatment studied in this work.


1992 ◽  
Vol 73 (2) ◽  
pp. S136-S141 ◽  
Author(s):  
R. N. Racine ◽  
S. M. Cormier

Hepatic tissue from flight, synchronous, vivarium, and tail-suspended rats was examined by light microscopy and computer-assisted image analysis. Glycogen levels in flight rats were found to be significantly elevated over those in controls. Lipid was also higher but not significantly different. Hepatocytes appeared larger in flight animals because of area attributed to increased glycogen. Sinusoids were less prominent in flight animals than in controls. The total Kupffer cell population appeared to be reduced in flight animals and may represent changes in defensive capacity of the liver. Alterations in the storage of glycogen and number of Kupffer cells suggest an important effect of spaceflight on the function of the liver that may have important implications for long-term spaceflight.


Sign in / Sign up

Export Citation Format

Share Document