the apparent enlargement of a bright object seen upon a dark ground, due to the fact that the portions of the retina around the image are stimulated by the intense light; as when a dark spot on a white ground appears smaller, or a white spot on a dark ground larger, than it really is, especially when a little out of focus
a process of sterilisation whereby radiation is passed through a bag containing food, utensils, etc., to sterilise the contents
The process of exposing food or other items to radiation of various wavelengths in order to destroy contamination from undesirable organisms, achieve insect disinfestation or delay maturation It is approved for most produce and some meat products Recently the Food and Drug Administration approved its use and USDA proposed rules for its use in red meat products While it has been used for produce and chicken in the Southeast, its expanded use is dependent on the construction of facilities on a wide-spread basis There are various types of irradiation treatments (gamma, x-ray and ultraviolet) with various characteristics and limitations to consider in building irradiation facilities
The product of irradiance and time, i e , the time integral of irradiance Note: For example, an irradiation of 100 J/m2 (joules per square meter) is obtained when an irradiance of 25 W/m2 (watts per square meter) is continuously incident for 4 seconds
The apparent enlargement of a bright object seen upon a dark ground, due to the fact that the portions of the retina around the image are stimulated by the intense light; as when a dark spot on a white ground appears smaller, or a white spot on a dark ground larger, than it really is, esp
{i} radiation; radiance; spiritual enlightenment; beam of light; exposure to radiation
(Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus
the apparent enlargement of a bright object when viewed against a dark background
(Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus the apparent enlargement of a bright object when viewed against a dark background (physiology) the spread of sensory neural impulses in the cortex the condition of being exposed to radiation
Food irradiation is exposure to ionising radiation resulting in a reduction in the levels of bacteria It can also be used to kill pathogenic organisms, reduce spoilage and delay ripening and sprouting in food
Exposing insulated hook-up wire to controlled electron beam radiation The resultant insulation withstands higher temperature and will not shirnk back when soldering
Exposure to radiation of wavelengths shorter than those of visible light (gamma, x-ray, or ultraviolet), for medical purposes, to sterilize milk or other foodstuffs, or to induce polymerization of monomers or vulcanization of rubber
The process of exposing food or other items to radiation of wavelengths shorter than those of visible light (gamma, x-ray, or ultraviolet) in order to destroy contamination from microorganisms or other undesirable organisms It is approved and now used for some food products
The process, considered controversial by many, (including natural food advocates) of using radiation to kill bacteria and other germs in food products, in order to lengthen the shelf-life of the product
treatment by ionizing radiation, such as x-rays, or radioactive sources such as radioactive iodine seeds
Exposure to radiation of wavelengths shorter than those of visible light (gamma, x-ray, or ultra- violet), for medical purposes, to sterilize milk or other foodstuffs, or to induce polymerization of monomers or vulcanization of rubber
Exposure to radiation sources Used for sterilising of food and used experimentally for sterilising of gametes to alter sex see Irradiation - sterilisation
In insulations, the exposure of the material to high energy emissions for the purpose of favorably altering the molecular structure
Exposing food to high-energy rays (gamma rays, x-rays, or e-beams) in order to kill harmful bacteria, extend shelf life, or control insect pests It is sometimes referred to as cold pasteurization or electronic pasteurization