منابع مشابه
Meteorology and Agroforestry Meteorology and Agroforestry
The physical environment affects and interacts with agroforestry systems through tree and crop growth, animal performance, management operations and interactions between the tree/shrub and non-tree components (abbreviated to tree/crop interactions). Interactions take place mainly through the media of microclimate, soil moisture and soil. They may have beneficial or adverse effects, for tree and...
متن کاملLectures on Jump Systems Lectures on Jump Systems
This document contains notes that accompanied a series of four lectures on jump systems. These lectures were presented at the Center of Parallel Computing to an audience consisting mainly of graduate students. Abstract A jump system is a nonempty set of integral vectors that satisfy a certain exchange axiom. of Lovv asz. A degree system of a graph G is the set of degree sequences of all subgrap...
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ژورنال
عنوان ژورنال: Nature
سال: 1876
ISSN: 0028-0836,1476-4687
DOI: 10.1038/014209b0