Thermal insulation in the building walls is an important factor to reduce heat transfer from external environment, thus reducing demand for air conditioning and achieving thermal comfort. In order improve performance of walls, present work aims construct hollow (double) experimentally; which are made several layers separated by thin aluminum sheets, find extent their impact on improving or gain...

W e present an optimal parallel algorithm t o construct the well-separated pair decomposition of a point set P in Zd. W e show how this leads to a deterministic opt imal O(1ogn) t ime parallel algorithm for finding the k nearest neighbors of each point in P, where k is a constant. W e discuss several additional applications of the well-separated pair decomposition for which we can derive fas t ...

The 1966 ANSI standard FORTRAN specifies the input of numerical data only in fixed format. Described here is a scheme, written in ANSI 66 FORTRAN, which allows numerical data prepared in accordance with the FORTRAN 77 free-format specification to be read. In addition, the scheme is designed so that ill-formed or ambiguous data are given a reasonable interpretation and the location of the suspec...

It is unfortunate that the prose is so uneven. Some sentences are clumsily constructed, causing attention to turn from the subject under discussion to matters of English usage and style. Occasionally there is a slightly overgenerous use of commas making the mind and eye stumble and halt at times. Perhaps the revision entailed in a second edition will include some comma culling. Although most st...