Browsing by Author "Ho, SC"

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Dissociation dynamics of excited neutral fragments of gaseous SiCl4 following Si 2p and Cl 2p core-level excitations
(2005-09-01)
Chen, JM
;
Lu, KT
;
Lee, JM
;
Ho, SC
;
Chang, HW
State-specific dissociation dynamics for excited fragments of gaseous SiCl4 following Cl 2p and Si 2p core-level excitations were characterized by the dispersed UV/optical fluorescence spectroscopy. The core-to-Rydberg excitations at both Si 2p and Cl 2p edges lead to a noteworthy production of excited atomic fragments, neutral and ionic (Si-*,Si+*). In particular, the excited neutral atomic fragments Si-* are significantly reinforced. The core-to-valence excitation at the Si 2p edge generates an enhancement of excited molecular-ion SiCl4+. The experimental results provide deeper insight into the dissociation dynamics for excited neutral fragments of molecules via core-level excitation.
Maximum likelihood estimates and confidence intervals of an M/M/R queue with heterogeneous servers
(2006-05-01)
Wang, TY
;
Ke, JC
;
Wang, KH
;
Ho, SC
;
工業工程與管理學系
This paper studies maximum likelihood estimates as well as confidence intervals of an M/M/R queue with heterogeneous servers under steady-state conditions. We derive the maximum likelihood estimates of the mean arrival rate and the three unequal mean service rates for an M/M/3 queue with heterogeneous servers, and then extend the results to an M/M/R queue with heterogeneous servers. We also develop the confidence interval formula for the parameter rho, the probability of empty system P-0, and the expected number of customers in the system E[N], of an M/M/R queue with heterogeneous servers.