Most phenomena in materials science result from the interplay between
processes that are operative over a wide range of length and time
scales. We review the methodologies that are available at various
length and time scales and discuss these in the context surface
phenomena, including issues that are pertinent to tisue engineering,
such as self-organization. Several general strategies that have been
developed for accommodating the disparate length and time scales are
outlined and one such approach, the level set method for aggregation
phenomena, is discussed in detail.
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