Color meanings

FIGURE 23.5 Effect of feeding captive male ring-necked pheasant (Ph. colchicus) young a high- or low-protein feed for the first three weeks of life on the expression of wattle coloration (mean+SE) at 20 (open circles) and 40 (filled circles) weeks of age. Coloration was determined using a principal components analysis (PCA) of tristimulus scores (hue, saturation, and brightness) obtained with a Colortron II reflectance spectrophotometer. 

Fig. 10 Histochemical staining of Hippeastrum hybridum pollen ( A), Epiphyllium hybridum pollen (B) and part of pistil of Hippeastrum hybridum (C) by red analogue of Ellman reagent. Blue color means the presence of cholinesterase.

Add to the second glass as much fresh water as there is filtered water in the first glass. Add equal amounts of the pH indicator to the two glasses. Compare colors, recalling from Chapter 10 that a deeper red color means greater acidity and that green indicates alkaline,... 

U. S. Fancy - Well-colored, meaning that the fruit is yellow or orange in color with practically no trace of green color. 

U. S. No. 1 Bright - Early and midseason varieties must be fairly well-colored. This means the yellow and orange colors predominate over the green color. An aggregate area of green color may not exceed the area of a circle 1 inch in diameter. For Valencias and other late varieties not less than 50% by count shall be fairly well-colored and the remainder reasonably well-colored. Reasonably well-colored means the yellow or orange color predominates on at least two-thirds of the fruit surfaces in the aggregate. 

Fig. 11.7. Left Potential U <1>) for / = 0.0483/(M. The inset depicts an enlarged view for ss 0. Note the difference in scale for the axis. Right (Color) Mean Iirst passage time computed from the master equation (solid lines) and the nonlinear Fokker-Planck ec iiatioii (dotted lines) for / = 0.0553/jM (black), O.Q513fiM (red), 0.0473frM (green) and 0.0433//M (blue) in dependence on the position of the absorbing boundary d>- Parameter values as in figure 11.6, right panel.

Martinez, Elizabeth. 1998. De Colores Means All of Us Latina Views for a Multi-Colored Century. Boston South End Press. 

Fig. 17. Dipolar coupling tensor depicted with a color coding on a sphere. Equal colors mean equal size of the dipolar coupling. Blue is negative, red is positive dipolar coupling. For uniformly distributed NH vectors in a molecule, the tensor produces a dipolar couphng histogram from which the principal components of the tensor can be read directly. The structure of rhod-niin, from which the data have been generated, is shown at the bottom.

Fig. 4.19. Various ways of visualization the 1 hydrogen oibital, which is a function of electrtxi position in 3-D space (coordinates in panels a-c are in a.u.). (a) Isdines of the = 0 section of the wave function (going through the nucleus). Black means the value zero, white color means a high value. This is a map of a mountain. The center of (a) shows a large white plateau that represents an artefact. In fiact, in panel (b), the section of the Is oibital as a function of r represents a mountain with a shaip summit (a discontinuity of the first derivative). Panel (c) is similar to (a), but instead of isolines, we have a white mist with the highest concentration in the center, disappearing exponentially with increasing distance r. Panel (d) shows a spherically symmetric isosurface of the wave function.

Properties Lt. cream color mean particle size 3 p 100% thru 200 mesh wet fineness (Hegman) 7 sp.gr. 1.7 bulk dens. 26 Ib/ff oil absorp. 85 Viton A-100 [DuPont Dow Elastomers DuPont Canada]... 

Color Meaning Explanation Action by operator Examples of application... 

A) Canned tomato pur4e (tomato pulp) that possesses a good red, ripe tomato color may be given a score of 51 to 60 points. "Good red, ripe tomato color" means the typical color of well-ripened tomatoes. This color contains as much or more red than that produced by spinning the specified Munsell color discs in the following combinations 65 percent of the area Disc 1 21 percent of the area Disc 2 14 percent of the area either Disc 3 or Disc 4, or any combination of the two. 

Note ANSI Z535.1-2002, Safety Color Code, and later editions no longer indicate safety color meanings, which only appeared in the 1998 and earlier editions. 

Color. Food color means to a cook what paint means to an artist. Without the bright colors of vegetables and fruits, our meals would be a series of brown and white pictures. Synthetic colors are covered in the section on "Coloring of Food" this section pertains to natural colors. 

Procedure The tested solvent (0.5 ml) is added slowly to 5 ml of ice-cold nitration mixture in a 150-ml Erlenmeyer flask, which is then stoppered and allowed to stand for 1 hr. The reaction mixture is then diluted, tmder steady cooling, with 50 ml of water, and 15 ml of 30% sodium hydroxide solution is added until the reaction of the mixture is alkaline to litmus. The mixture is then transferred to a separatory funnel and thoroughly extracted with 30 —40 ml of water." The ethereal layer is then put into a porcelain dish and the ether is evaporated carefully. The residue is dissolved in 50 ml of butanol. A part of this solution is put into a test tube and mixed with sodium hydroxide solution. The appearance of a red to violet color means a positive reaction. 

Procedure Pyridine (4 ml) and the sample are heated in the presence of two drops of alkali in a test tube over a water bath. The formation of a red color means a positive reaction. 

Procedure The reagent is added to a grain of the compound or ta its ethereal solution (a control experiment is indispensable ) in a test tube and gently warmed if necessary. The formation of a yellow color means a positive reaction. Only those peroxy compounds giving a yellow color, which liberate hydrogen peroxide in a weakly acid medium, react with titanium (IV) sulfate in 1.6% H2SO4 (46). Hydroxy- and dihydroxyalkyl peroxides react immediately in the cold, while peroxy acids and certain alkylhydroxy peroxides react slowly. Dialkyl peroxides react only after many hours or even days. Water-insoluble peroxides can be dissolved in methanol. 

Procedure The tested nitro compounds are dissolved in acetone, and sodium hydroxide solution is added dropwise. The appearance of an orange, red, violet, brown-red, or even blue color means a positive reaction. 

Procedure A small amount of a mononitro compound is dissolved in 3 ml of hot ethanol, and to this solution 7 — 10 drops of CaCl2 solution are added, followed by 50 mg of zinc. The mixture is boiled for 1 min on a water bath, then cooled and filtered. Four drops of the filtrate (if necessary, after dilution) are mixed with one drop of the reagent. The formation of a red to violet color means a positive reaction. 

Discoloration Normal TDI is water-white to pale yellow in color. A darker color means the TDI has been exposed to light or high temperature. A color something other than white to yellow means the TDI has been contaminated and should not be used. Call the manufacturer for assistance. 

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