Seeing red: Affect modulation and chromatic color responses on the Rorschach

2013 ◽  
Vol 77 (1) ◽  
pp. 70-93 ◽  
Author(s):  
Johanna C. Malone ◽  
Michelle B. Stein ◽  
Jenelle Slavin-Mulford ◽  
Iruma Bello ◽  
S. Justin Sinclair ◽  
...  
Keyword(s):  
Chromatic Color

scholarly journals The Effects of Ambient Illumination, Color Combination, Sign Height, and Observation Angle on the Legibility of Wayfinding Signs in Metro Stations

2020 ◽  
Vol 12 (10) ◽  
pp. 4133 ◽  
Author(s):  
Yuqi Shi ◽  
Yi Zhang ◽  
Tao Wang ◽  
Chaoyang Li ◽  
Shengqiang Yuan
Keyword(s):  
Service Level ◽  
Observation Angle ◽  
Ambient Illumination ◽  
The Sustainable Development ◽  
Color Combination ◽  
Black Background ◽  
Different Types ◽  
Color Combinations ◽  
White Target ◽  
Chromatic Color

Well-designed wayfinding signs play an important role in improving the service level of metro stations, ensuring the safety of passengers in evacuation, and promoting the sustainable development of public transport. This study explored the effects of ambient illumination, color combination, sign height, and observation angle on wayfinding signs’ legibility in metro stations. In the experiment, simulated metro-wayfinding signs were made to test legibility. As designed, the legibility was measured based on the following independent variables: two levels of ambient illumination (70 lux and 273 lux), two target/background color combinations (achromatic-white target on black background, chromatic-yellow target on black background), two sign heights (1.5 m and 2 m), and three observation angles (0°, 45°, 70°). The results showed that brighter ambient illumination provided passengers with higher legibility. Achromatic color combination was more legible than chromatic color combination, but not significantly. Different types of signs, set at different height, did not directly affect legibility. Observation angle had significant effects on legibility. Visibility catchment area of wayfinding signs was like an ellipse, with its short axis nearly equal to the legibility distance of the sign at 0 degrees. The findings will facilitate the layout and setting location of wayfinding signs in metro stations and improve the level of wayfinding service.

Measuring the Diameter of Xylem: a Short Communication

1994 ◽  
Vol 42 (3) ◽  
pp. 321 ◽  
Author(s):  
E Mapfumo
Keyword(s):  
Short Communication ◽  
Color Image ◽  
Image Analysis System ◽  
Color Image Analysis ◽  
Different Shapes ◽  
Method Of Measurement ◽  
Analysis System ◽  
Level Of Significance ◽  
Axial Resistance ◽  
Chromatic Color

The magnitude of error in estimating axial resistances was assessed using the diameters of xylem vessels of different shapes, measured using four different methods. Statistical analyses showed that the diameter measurements obtained using the different methods, were significantly different at the 0.001 level of significance. Using the Tukey test, the diameters obtained using the 'four axes' method were not significantly different from the actual diameters obtained using the Chromatic Color Image Analysis System. By using the 'Lewis' method for measuring the xylem diameter, axial resistance was overestimated by a factor of 1.6. Thus, the error caused by the method of measurement may partly explain why, in some studies, the estimated axial resistances have always been different from the measured resistances. The 'four axes' method is the simplest and most reliable and gives results very close to the actual diameters, compared with the other three methods.

Biological Models for Blind Students

1978 ◽  
Vol 72 (4) ◽  
pp. 121-124
Author(s):  
Frank L. Franks ◽  
Marvin J. Murr
Keyword(s):  
Low Vision ◽  
Flowering Plants ◽  
Biological Models ◽  
Color Coding ◽  
Biological Features ◽  
Representative Species ◽  
Texture Size ◽  
Chromatic Color ◽  
Printing House ◽  
Blind Students

In response to an expressed need for inexpensive biological models for blind students, the American Printing House for the Blind has developed a set of 19 plastic models (schematics) which illustrate representative species of the major invertebrate phyla and component structures of flowering plants. The biological features depicted on the models were found to be highly discriminable in a test of legibility (95 percent overall correct responses) with 42 legally blind students (grades 7-12). The models emphasize simplicity, but offer additional cues where complexity occurs. Texture, size, shape, and relief were used for maximum legibility. Chromatic color coding was employed to maximize color and luminance contrasts for low vision students. The models averaged nine inches (22.9 cm) in length on their longest sides.

Effects of Display Characteristics and Individual Differences on Preferences of VDT Icon Design

2005 ◽  
Vol 100 (2) ◽  
pp. 305-318 ◽  
Author(s):  
Kong-King Shieh ◽  
Ya-Hsien Ko
Keyword(s):  
Individual Differences ◽  
Simultaneous Presentation ◽  
Background Color ◽  
Color Combination ◽  
Black And White ◽  
Single Presentation ◽  
Color Combinations ◽  
Chromatic Color ◽  
Icon Design

This study explored the effects of display characteristics such as target/background color combination, single/simultaneous presentation, and individual differences by sex, and design specialty on preferences of VDT icon design. The results indicated black targets (black-on-white, black-on-yellow) and black backgrounds (red-on-black, yellow-on-black) were the most popular and white targets (white-on-red, white-on-black) and white backgrounds (blue-on-white, red-on-white) were the second most popular. As for the chromatic color combinations, yellow-on-blue was the most favored. Subjects rated color combinations under single presentation higher than those under simultaneous presentation. Women rated purplish targets and rated purplish and blue backgrounds higher than men. Subjects with design background favored black more either as a target or background, but they favored turquoise less than those without design background.

Study of Edible Ink

2012 ◽  
Vol 262 ◽  
pp. 497-500
Author(s):  
Yu Hang Su ◽  
Xiu Ping Zhao
Keyword(s):  
Future Research ◽  
Materials Selection ◽  
The Future ◽  
Color Rendering ◽  
Chromatic Color

In order to print chromatic color and pattern on the surface of food, medicine and edible materials, and also print on the package of food, medicine and some other produces, the new ink with chromatic color, environmental nontoxic and edible is needed. In this paper, based on the principle of traditional ink, a kind of edible ink is prepared through reasonable materials selection and a larger number of experiments, and studied on its relevant performances. The conclusion indicates that the edible ink has good trait in mobility, thixotropism, color rendering and printability, and can be used as a reference in the future research.

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