Z
Zhe George Zhang
Researcher at Western Washington University
Publications - 128
Citations - 4730
Zhe George Zhang is an academic researcher from Western Washington University. The author has contributed to research in topics: Queue & Queueing theory. The author has an hindex of 30, co-authored 127 publications receiving 3870 citations. Previous affiliations of Zhe George Zhang include Simon Fraser University & University of the Fraser Valley.
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A multi-criteria optimal replacement policy for a system subject to shocks
TL;DR: This study considers a multi-criteria replacement policy based on system age, nature of failure, and entire repair-cost history that calls for a replacement at planned life time T.
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Is China's natural gas market globally connected?
TL;DR: In this article, the authors used the DCC-GARCH-Nardl-ARDL-ECM analytical framework to study the relationship between domestic and foreign natural gas markets and found that there was no significant asymmetry in the impact of international gas prices on China's gas prices.
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Analysis of two-tier public service systems under a government subsidy policy
TL;DR: A mixed duopoly game is developed to analyze the Nash equilibrium for the competition between the free and toll systems and finds that if customers are less sensitive to the service delay, the subsidy policy can effectively reduce the expected waiting time for the free system and increase the customer utility surplus of the entire two-tier system.
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A note on replacement policy for a system subject to non-homogeneous pure birth shocks
Shey-Huei Sheu,Shey-Huei Sheu,Chin-Chih Chang,Zhe George Zhang,Zhe George Zhang,Yu-Hung Chien +5 more
TL;DR: The aim of this note is to derive the expected cost functions and characterize the structure of the optimal replacement policy for such a general setting, and shows that many previous models are special cases of the general model.
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Optimal maintenance policy for a system subject to damage in a discrete time process
TL;DR: This work proposes a maintenance policy which prescribes a PM when the accumulated damage exceeds a pre-specified level δ ( ζ ), or when the number of operation periods reaches N, whichever comes first, and optimize the maintenance policy parameters δ ⁎ and N⁎.