871 mesenteric lymph nodes taken from 110 native cattle from urmia slaughter-house with differentages were examined for linguatula serrata infection. the lymph nodes were studied based on their colourand consistency. 44% of the cattle were found positive for l. serrata infection. the number of parasitesisolated from each infected lymph node varied from 1 to 69 with a mean of 5.48. there were no...

In this paper, we formulate and solve an Imprecise Covering Ring Star Problem (ICRSP), which is a generalization of the (RSP). Here objective problem to find subset nodes in network minimize sum routing costs interconnecting cycle assignment are out cycle, their nearest concentrators such that no assigned node exceeds predetermined distance (say, covering distance) from concentrators. The dista...

Abstract Methods for improving upper and lower bounds various coverings of planar sets are proposed. New numbers partition constituents presented, suggestions the generalization presented methods offered.