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Baseline color and black and white red-free filtered images are taken prior to injection. The black and white images are filtered red-free (a green filter) to increase contrast and often gives a better image of the fundus than the color image. A 6-second bolus injection of 2-5 cc of sodium fluorescein into a vein in the arm or hand
Within the CMY color space used in color printing, a range of colors can be achieved by combining the three primary colors.This combination can be thought of as a hue component (which will require a maximum of two primary colors) and a grey component (a mixture of all three, in an appropriate quantity to give the required saturation).
Bokashi (Japanese: γΌγγ) is a technique used in Japanese woodblock printmaking. It achieves a variation in lightness and darkness of a single color or multiple colors by hand applying a gradation of ink to a moistened wooden printing block, rather than inking the block uniformly. This hand-application had to be repeated for each sheet of ...
English: Colour palette adopted by climate scientist Ed Hawkins for "Warming stripes" graphic illustrating global warming. Dr. Hawkins chose the 8 most saturated reds and blues of ColorBrewer 9-class single hue palette. Creation date (below) was chosen as date of Dr. Hawkins' first wide publication of "warming stripes".
A fluorous technology was described by Curran [16] The fluorous synthesis employs functionalized perfluoroalkyl (Rf) groups like 4,4,5,5,6,6,7,7,8,8,9,9,9-Tridecafluorononyl {CF 3 (CF 2) 4 CF 2 CH 2 CH 2-} group attached to substrates or reagents. The Rf groups make it possible to remove either the product or the reagents from the reaction mixture.
Under color removal is used in process color printing. Black ink used to add details and darkness in shadowed areas is called a skeletal black . With current [ as of? ] ink technology, the total CMYK ink in the shadows refuses to stick after it reaches the dark shadows (usually above a 250% total CMYK coverage), and begins to peel off.
Printing is the process of adding localized or patterned color to fabrics. [2] Discharge printing involves dyeing first with dischargeable dyes; subsequently, the dyed fabric undergoes a printing process involving the application of a chemical-infused paste that effectively removes the color imparted by the dye.
Its chemical name is 1-(4-sulfo-1-napthylazo)-2-napthol-6,8-disulfonic acid, trisodium salt. Ponceau (17th century French for " poppy-coloured ") is the generic name for a family of azo dyes . Ponceau 4R is a strawberry red azo dye which can be used in a variety of food products, and is usually synthesized from aromatic hydrocarbons ; it is ...
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