منابع مشابه
Requirements volatility and defect density
In an ideal situation the requirements for a software system should be completely and unambiguously determined before design, coding and testing take place. In actual practice, often there are changes in the requirements, causing some of the software components to be redesigned, deleted or added. Higher requirement volatility will cause the resulting software to have a higher defect density. In...
متن کاملLow Density High Density
Mouse 3T3 cells and their Simian Virus 40-transformed derivatives (3T3SV) were used to assess the relationship of transformation, cell density, and growth control to the cellular distribution of newly synthesized glycosaminoglycan (GAG). Glucosamineand galactosamine-containing G A G were labeled equivalently by [all]glucose regardless of culture type, allowing incorporation into the various G A...
متن کاملUnderstanding Density and High Density
Physical density is a numerical measure of the concentration of individuals or physical structures within a given geographical unit. It is an objective, quantitative and neutral spatial indicator. However, in practice, physical density takes on a real meaning only if it is related to a specified scale of reference. For instance, density expressed as ratio of population to land area can vary sig...
متن کاملWater Use Requirements of High and Conve~tional Density Walnuts under Localized Irrigation
Crop water use (ET) of third year Chico walnuts under low volume sprinkler irrigation in both high and conventional density plantings were measured at the Kearney Agricultural Center in 1984. Crop yield was also evaluated. Additionally, the yield response to varying levels of pruning of selected high density guard row trees was assessed. On a per tree basis, high density tree peak ET (25 gal/tr...
متن کاملNeural crest cell migration: requirements for exogenous fibronectin and high cell density
Cells of the neural crest participate in a major class of cell migratory events during embryonic development. From indirect evidence, it has been suggested that fibronectin (FN) might be involved in these events. We have directly tested the role of FN in neural crest cell adhesion and migration using several in vitro model systems. Avian trunk neural crest cells adhered readily to purified plas...
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ژورنال
عنوان ژورنال: Highlights of Astronomy
سال: 1998
ISSN: 1539-2996
DOI: 10.1017/s1539299600020797