منابع مشابه
Improved automatic inoculator for bacterial cultures.
A simple automatic inoculator which allows the simultaneous inoculation of several cultures with identical or different inocula is described. The use of Teflon spaghetti tubing allows great flexibility in handling and placing of components. The inoculator can be adapted to handle aerobic and anaerobic bacteria.
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Determination of residual natural waxes and processing lubricants on yarns and fabrics has traditionally been accomplished by Soxhlet extraction with an organic solvent. A variety of concerns about these solvents has driven a search for alternative methods. Hydrocarbon solvents; e.g., petroleum ether, are flammable and the manufacture of chlorofluorocarbon solvents was phased out in 1996 as a r...
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Introduction Many western farmers believe that soil alkali is more detrimental to crop growth during the hot weather than during the cooler seasons of the year. Other agricultural workers have noted that damage to crops due to alkali (soil salinity) is more serious in the hot interior valleys than along the coast where the climate is more moderable. It is not definitely known whether or not soi...
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There is a widespread interest in developing methods to recover homogeneous catalysts, particularly chiral catalysts, from a reaction mixture. The impetus to recover and reuse homogeneous catalysts stems not only from an economic standpoint but also from the need to eliminate contamination of the transition metal catalyst in the product and in the waste streams. The challenge is to recover the ...
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Unsupervised segmentation, based on texture analysis, classifies each image region into three groups: live cells, necrotic cells and background. The segmentation is based on three discriminant functions, built using a total of 12 parameters derived from the histogram and the co-occurrence matrix. These parameters were selected performing a discriminant analysis on a training set that included i...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1962
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.37.3.357