Perception of peripherally viewed shapes is impaired when surrounded by similar shapes. This phenomenon is commonly referred to as "crowding". Although studied extensively for perception of characters (mainly letters) and, to a lesser extent, for orientation, little is known about whether and how crowding affects perception of other features. Nevertheless, current crowding models suggest that t...

UNLABELLED PREMISE OF THE STUDY Differences in color form a major component of biological variation, and quantifying these differences is the first step to understanding their evolutionary and ecological importance. One common method for measuring color variation is segment classification, which uses three variables (chroma, hue, and brightness) to describe the height and shape of reflectanc...

Colour development in fruit of Actinidia chinensis var. chinensis ‘Hort16A’, the new yellowfleshed cultivar produced commercially in New Zealand, was monitored during three seasons in four 42 New Zealand Journal of Crop and Horticultural Science, 2003, Vol. 31 The pericarp of ‘Hort16A’ fruit changes from a light green colour to a light yellow colour as fruit develop on the vine. Virtually no co...

Paper-Cardboard production sector renews itself day by and evaluates alternative options to increase quality. At the same time, it has closely adapted technological developments in printing industry now managed enter every home or office thanks digital printing. Digital (inkjet-electrophotographic) come a level where can replace some conventional techniques as result of quality prints provides....

the present research designed to evaluate the effects of foliar application of methyl jasmonate (meja), salicylic acid (sa) and potassium sulfate on improving fruit quality and photosynthesis system. ten treatments include: sa (0.3, 0.6 and 0.9 mm), meja (0.5, 1 and 2 mm), potassium sulfate (0.5, 1 and 1.5%) and distilled water (control) were sprayed on pomegranate trees 2 and 7 weeks after ful...

vacuum drying of salicornia herbacea l. was performed at different drying temperatures (50, 60, 70, and 80c) to evaluate the drying characteristics and the effect of drying temperatures on the quality of salicornia. as the drying temperature increased, the drying time decreased significantly (p< 0.05). the drying rate decreased with decrease in moisture content and increase in drying time. on ...

The precision of human colour discrimination depends on the region of colour space in which measurements are made and on the direction in which the compared colours-the discriminanda-differ. Working in a MacLeod-Boynton chromaticity diagram scaled so that thresholds at the white point were equal for the two axes, we made measurements at reference points lying on lines that passed at 45° or -45°...