MOST papers published on the separation of food dyes have been based on the paper-chromatographic technique. Few, however, describe the application of electrophoresis to this problem. The supports used in electrophoretic separations have usually been paper 1,2 , and, recently, the use of cellulose...
Insect colours assist in body protection, signalling, and physiological adaptations. Colours also convey multiple channels of information. These channels a
This results in the region where the gap height is less than the 1/2 of the minimum disappearance of visible wavelength. Figure 1c the chromatic fringes and the are presented the profile remaining narrow, black ofrfinthgeesM. oS2 thin films, highlighting the To further demonstrate that the...
In double slit experiment fringes are obtained using light of waveleng... 06:58 When exposed to sunlight, thin films of oil on water often exhibit bri... 02:20 When viewed in white light, soap bubbles show colours because of 01:02 A parallel beam of sodium light of wavelength 6000 Å...
Alternatively, we demonstrate the engineerable printing of patterned interference colours by using a transparent CTO as a functional unit. Four letters with patterns of “T”, “B”, “S”, and “I” are printed on a thin MB-hydrogel-29 label (C = 0.12 vol%; L = 1 mm) (...
To understand it properly, they created thin films which could scatter light and at the same time create diffraction or interference. The system was made using silicon nitride coatings on larger metallic aluminum samples. Different colors were visible by changing the lighting conditions. Under normal...
A Chinese knot(结)is usually made of a thin rope. It can be in the shape of an animal, a flower or a Chinese character with a special meaning. Red ropes are usually used because red is a lucky colour for Chinese people. Many Chinese knots have special meanings. People think that thes...
Dollars are called greenbacks in American slangs because that is the colour of the bottom of their bank notes. The colour black is used often in expressions. People may say “it’s a black day” when everything goes wrong on that day. In some cases, colours describe a situation. Blackout...
Colloidal crystal (CC) thin films that produce strWeihong Gao aMuriel Rigout bHuw Owens aApplied Surface ScienceW Gao, M Rigout, H Owens. Self-assembly of silica colloidal crystal thin films with tuneable structural colours over a wide visible spectrum[J]. Applied Surface Science, 2016, 380...
Thermal effects for ps pulses are likely to play a role in the creation of colours, unlike for fs laser pulses that have durations that are shorter than the thermal expansion time23. The use of closely time-spaced laser pulses (bursts) then presents an interesting method of manipulating the ...