We develop ETA (Estimated Time of Arrival) based elevator group control algorithms with more accurate estimations to minimize the average waiting time of the passengers. Following the principle of ETA estimations, the algorithms not only estimate the attending time of the new hall call, but also the delay that serving it will cause to successive unattended passengers that have been allocated to...

this paper examines the lewis theory of structural change in iran in the period 1974-2005. where labor productivity growth and the intensive use of labor occurs via reallocation of labor between sectors or spillovers in the production from the manufacturing or service sectors to agriculture resulting to convergence. assessing whether productivity gap is reducing or increasing, takes us to the n...

Most general-purpose multiprocessors are time-shared among multiple users. When a user arrives, s/he requests a submachine of size appropriate to his/her computation ; the processor-allocation algorithm then assigns him/her a portion of the multi-processor of the requested size. This study is motivated by the fact that, as successive users arrive, use a portion of the multi-processor, and depar...

In a unified framework of allocation problems with at least three entities (or agents), we show that “generalized proportional rules” are the only rules that are robust to coalitional manipulations. We characterize proportional rules imposing in addition efficiency, dummy, and nonnegativity. Coalitional manipulations are considered both in the environment without any restriction on coalition fo...