A PROSPECTIVE ANALYSIS OF CONTRAST PRESERVATION USING ULTRA-LOW CONTRAST DELIVERY TECHNIQUE VERSUS AUTOMATED CONTRAST INJECTOR SYSTEM IN CORONARY PROCEDURES

2019 ◽  
Vol 73 (9) ◽  
pp. 1194
Author(s):  
Adam T. Stys ◽  
Maheedhar Gedela ◽  
Udit Bhatnagar ◽  
Jeffrey Wilson ◽  
Natalia Stys ◽  
...  
2020 ◽  
Vol 44 (3) ◽  
pp. 653-661 ◽  
Author(s):  
Satyaswarup Tripathy ◽  
Abhinav Likhyani ◽  
Raman Sharma ◽  
Ramesh Kumar Sharma

Nephron ◽  
2018 ◽  
Vol 138 (4) ◽  
pp. 296-302 ◽  
Author(s):  
Zach Rozenbaum ◽  
Sydney Benchetrit ◽  
Eliezer Rozenbaum ◽  
Eran Neumark ◽  
Morris Mosseri ◽  
...  

2000 ◽  
Vol 179 ◽  
pp. 403-406
Author(s):  
M. Karovska ◽  
B. Wood ◽  
J. Chen ◽  
J. Cook ◽  
R. Howard

AbstractWe applied advanced image enhancement techniques to explore in detail the characteristics of the small-scale structures and/or the low contrast structures in several Coronal Mass Ejections (CMEs) observed by SOHO. We highlight here the results from our studies of the morphology and dynamical evolution of CME structures in the solar corona using two instruments on board SOHO: LASCO and EIT.


Author(s):  
J. A. Hugo ◽  
V. A. Phillips

A continuing problem in high resolution electron microscopy is that the level of detail visible to the microscopist while he is taking a picture is inferior to that obtainable by the microscope, readily readable on a photographic emulsion and visible in an enlargement made from the plate. Line resolutions, of 2Å or better are now achievable with top of the line 100kv microscopes. Taking the resolution of the human eye as 0.2mm, this indicates a need for a direct viewing magnification of at least one million. However, 0.2mm refers to optimum viewing conditions in daylight or the equivalent, and certainly does not apply to a (colored) image of low contrast and illumination level viewed on a fluorescent screen through a glass window by the dark-adapted eye. Experience indicates that an additional factor of 5 to 10 magnification is needed in order to view lattice images with line spacings of 2 to 4Å. Fortunately this is provided by the normal viewing telescope supplied with most electron microscopes.


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