In this paper we demonstrate that the distributional laws that relate the number of customers in the system (queue), L (<?) and the time a customer spends in the system (queue), S (W) under the first-in-first-out (FIFO) discipline lead to a complete solution for the distributions of L, Q, S, W for queueing systems which satisfy distributional laws for both L and Q {overtake free systems). Moreo...

The current problem faced by Indonesia in the energy sector is decline oil reserves and production. It aggravated increase demand. Meanwhile, interest using biodiesel from renewable sources continues to increase. In last decade, number of publications on this topic has shown an This study aims observe research development conversion vegetable raw materials into fuel. study, researchers conducte...