منابع مشابه
Canned Lightsources
Complex luminaries and lamp geometries can greatly increase the realism of synthetic images. Unfortunately, the correct rendering of illumination from complex lamps requires costly global illumination algorithms to simulate the indirect illumination reflected or refracted by parts of the lamp. Currently, this simulation has to be repeated for every scene in which a lamp is to be used, and even ...
متن کاملIsolated from Commercially Canned Food
Sporeformers isolated from a commercially canned food were identified as Bacillus cereus, lactose-positive variants. The thermal resistance of spore crops produced from each of two representative cultures was determined in 0.067 M phosphate buffer at pH 7.0. The D12,A, values for one isolate were approximately 0.03 min (z = 9.9 C), whereas the D121.1 values for the other isolate were 2.35 min (...
متن کاملArsenic and Chromium in Canned and Non-Canned Beverages in Nigeria: A Potential Public Health Concern
Numerous studies have described environmental exposure of humans to heavy metals in African populations. Little is known about the exposure to heavy metal toxins from processed or unprocessed foods consumed in Africa, and no data exists on the food concentrations of arsenic and chromium, which are potential carcinogens and systemic toxicants. This study determined the concentrations of arsenic ...
متن کاملIrradiation-heat Processing of Canned Foods
HARRIS, R. J. C. 1954 Biological applications of freezing and drying. Academic Press, Inc., New York, New York. HECKLY, R. J. 1955 Rapid and precise measurement of moisture in biological materials. Science, 122, 760-761. MERYMAN, H. T. 1956 Mechanics of freezing in living tissues. Science, 124, 515-521. MILES, A. A., MISRA, S. S., AND IRWIN, J. 0. 1938 The estimation of bactericidal power of th...
متن کاملCombined Irradiation-Heat Processing of Canned Foods
The quantity of ionizing radiations needed to sterilize canned foods generally impairs both their nutritive qualities and palatability (Hannan, 1955; Schultz et al., 1956). However, thermal processes also lower these qualities in canned foods (Stumbo, 1949). In both instances, the extent of damage increases with the severity of the treatments. Consequently, the heat processing schedules that ar...
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ژورنال
عنوان ژورنال: Nature
سال: 1976
ISSN: 0028-0836,1476-4687
DOI: 10.1038/262442c0