We give a memoryless scale-invariant randomized algorithm Mix-R for buffer management with bounded delay that is e/(e − 1)-competitive against an adaptive adversary, together with better performance guarantees for many restricted variants, including the s-bounded instances. In particular, Mix-R attains the optimum competitive ratio of 4/3 on 2-bounded instances. Both Mix-R and its analysis are ...

The aim of this paper is to carried out statistical analysis for optimization of various concrete mix proportions by using full factorial experimental technique. The variables such as 28 days cube compressive strength, water to cement ratio (w/c), coarse aggregate to total aggregate ratio (CA/TA) and total aggregate to cement ratio (TA/C) were the parameters to be used for optimization. Four w/...

This study was achieved to find an optimum design for eggs incubator where the resources of this field is very limited. The most important factors were putted forward including dimensions each element. energy required in operation periods calculated. Where time consists two (the first period takes 17 days and second from 18th day 21 day). results shown excellent efficiency, however, some failed...