Phase-ratio image

Figure 1. Phase identification using Si/Al ratio images, a) silicon b) aluminum c) Si/Al ratio image d) Si/Al intensity profile e) selection of intensity cut-offs f) "semi-quantitative" phase map...

Fig. 3.57 Height left, z-scale 8 nm) and phase right) images (350 x 350 nm2) of solution cast films of PS-b-PI-b-PS. The data were acquired using the following setpoint ratios Ar (a) 0.99, (b) 0.95, (c) 0.70, (d) 0.50, (e) 0.40, (f) 0.20. With kind permission from Springer Science+Business Media from [130], Copyright 1998. Springer...

Figure 10. Albedo (a) and phase-ratio /( 0°)//(3°) (b) images of Europa s surface obtained with the Galileo camera using a 0.56 pm filter [33].

FIGURE 2.1 Photomicrographs of the relief of films with PHB-PIB ratio of20 80 (scan size 5x5 um) (a, b) and AFM phase contrast image of the film with a ratio of20 80 PHB-PIB (scan size 20 x 20 um) (c, d). 

Fig. 16 TEM micrographs of polyurethane nanocapsules prepared using hexadecane/ toluenyldiisocyanate molar ratios of (a) 1 1.9 and (b) 1 2.25 from cyclohexane phase. The images were taken before the carboxymethylation reaction...

Figure 30.3 (A) Fluorescence Image of a POPC GUV and the membrane-attached dansyl-labeled model peptide (molar ratio POPC peptide = 30 1, bar = 50 pm). (B) and (C) Phase contrast image of peptide-mediated GUV-GUV clustering (incubation time > 45 nun, bar = 50 pm). (D) Diagram of peptide (helical wheel representation) - membrane interaction triggering GUV-GUV attachment.

A useful measure of imaging quality is the Strehl ratio. It is defined as the ratio of the on-axis intensity in the image of a point source, to that given by the diffraction limited system with the same aperture. A phase aberration (p x) will result in a Strehl ratio of... 

Visual imaging of cell population in vitro) using low signal-to-noise ratio phase contrast microscopy can enable systematic monitoring measurements of cell quality, development and apoptosis. In the present study, microscopic evaluations as seen in Fig. 11 did not reveal any significant alteration in cellular morphology upto 1000 ng/ml. 

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