1. J.-C. Ke, Y.-L. Hsu, T.-H. Liu, Z.-G. Zhang, (2013, Mar).Computational analysis of machine repair problem with unreliable multi-repairmen. ─Computers and Operations Research,40(3), 848-855. [SCI]

2. C.-H. Wu, J.-C. Ke, (2012, Oct).Multi-threshold policy for a multi-server queue with synchronous single vacation.─Mathematical and Computer Modelling,57, 1122-1130. [SCI]

3. J.-C. Ke*, K.-B. Huang, (2012, Aug).Analysis of batch arrival queue with randomized vacation policy and an un-reliable server. ─Journal of Systems Science and Complexity,25, 759-777. [SCI]

4. C.-H. Lin, J.-C. Ke, H.-I. Huang, (2012, Jun).Reliability-based measures for a system with an uncertain parameter environment. ─International Journal of Systems Science,43(6), 1146-1156. [SCI]

5. J.-C. Ke, M.-F. YenSte'phane, T.-H. Liu, Y.-L. Hsu, (2012, May).A standby system with general repair and imperfect switching. ─Journal of Testing and Evaluation, 40(3), 440-446. [SCI]

6. J.-C. Ke*, K.-B. Huang, W.-L. Pearn, (2012, Mar).A batch arrival queue under randomized multi-vacation policy with unreliable server and repair.─International Journal of Systems Science, 43(3), 552-565. [SCI]

7. J.-C. Ke*, C.-H. Wu, (2012, Feb).Multi-server machine repair model with standbys and synchronous multiple vacation. ─Computers & Industrial Engineering, 62(1), 296-305. [SCI]

8. C.-H. Wu, K.-H. Wang, J.-C. Ke, J.-B. Ke, (2012, Feb).A heuristic algorithm for the optimization of M/M/s queue with multiple working vacations. ─Journal of Industrial and Management Optimization, 8(1), 1-17. [SCI]

9. G. Choudhury, J.-C. Ke, (2012, Jan).A batch arrival retrial queue with general retrial times under Bernoulli vacation schedule for unreliable server and delaying repair. ─Applied Mathematical Modelling, 36(1), 255-269. [SCI]

10. Y.-K. Chu, J.-C. Ke, (2012).Computation approaches for parameter estimation of Weibull distribution. ─Mathematical and Computational Applications,17, 39-47. [EI]

11. J.-C. Ke, C.-H. Lin, (2011, Dec).On the discrete-time system with server breakdowns: Computational algorithm and optimization algorithm.─Applied Mathematics and Computation, 218(7), 3624-3635. [SCI]

12. J.-C. Ke, C.-H. Lin, H.-I. Huang, Z.-G. Zhang, (2011, Nov).An algorithmic analysis of multi-server vacation model with service interruptions. ─Computers & Industrial Engineering, 61(4), 1302-1308. [SCI]

13. J.-C. Ke, C.-H. Wu, Z.-G. Zhang, (2011, Nov).Recent Developments in Vacation Queueing Models: A Short Survey. ─International Journal of Operations Research,7(4), 3-8.

14. J.-C. Ke*, C.-H. Wu, W.-L. Pearn, (2011, Oct).Multi-server retrial queue with second optional service: Algorithmic computation and optimization. ─International Journal of Systems Science,42(10), 1755-1769. [SCI]

15. G. Choudhury, L. Tadj, J.-C. Ke, (2011, Sep).A two-phase service system with Bernoulli vacation schedule, setup time and N-policy for an unreliable server with delaying repair. ─Quality Technology & Quantitative Management, 8(3), 271-284. [SCI]

16. H.-I. Huang, P.-C. Hsu, J.-C. Ke*, (2011, Aug).Controlling arrival and service of a two-removable-server system using genetic algorithm.─Expert Systems with Applications,38(8), 10054-10059. [SCI]

17. J.-C. Ke, F.-M. Chang, M.-Y. Ko, (2011, Jul).A general retrial system with additional vacation. ─International Journal of Services Operations and Informatics, 6(3), 221-229. [EI]

18. J.-C. Ke*, K.-B. Huang, W.-L. Pearn, (2011, Jul).The performance measures and randomized optimization for an unreliable server M[x]/G/1 vacation system. ─Applied Mathematics and Computation, 217(21), 8277-8290. [SCI]

19. J.-C. Ke*, C.-H. Wu, W.-L. Pearn, (2011, May).A heuristic algorithm for the optimization of a retrial system with Bernoulli vacation. ─Optimization: A Journal of Mathematical Programming and Operations Research,62(3), 299-321[SCI]

20. J.-C. Ke*, C.-H. Wu, W.-L. Pearn, (2011, May).Algorithmic analysis of the multi-server system with a modified Bernoulli vacation schedule. ─Applied Mathematical Modelling, 35(5), 2196-2208. [SCI]

21. C.-H. Lin, J.-C. Ke, (2011, May).Optimization analysis for an infinite capacity queueing system with multiple queue-dependent servers: Genetic algorithm.─International Journal of Computer Mathematics, 88(7), 1430-1442. [SCI]

22. T.-Y. Wang, J.-C. Ke, F.-M. Chang, (2011, May).On the discrete-time Geo/G/1 queue with randomized vacations and at most J vacations. ─Applied Mathematical Modelling, 35(5), 2297-2308. [SCI]

23. C.-J. Chang, J.-C. Ke, H.-I. Huang, (2011, Apr).The optimal management of a queueing system with controlling arrivals. ─Journal of the Chinese Institute of Industrial Engineers, 28(3), 226-236. [EI]

24. J.-C. Ke*, S.-L. Lee, M.-Y. Ko, (2011, Mar).Two-unit redundant system with detection delay and imperfect coverage: confidence interval estimation.─Quality Technology and Quantitative Management,8(1), 1-14. [SCI]

25. C.-H. Lin, J.-C. Ke, (2011, Mar).On the multi-server retrial queue with geometric loss and feedback: Computational algorithm and parameter optimization. ─International Journal of Computer Mathematics,88(5), 1083-1101. [SCI]

26. T.-H. Liu, J.-C. Ke, Y.-L. Hsu, (2011, Mar).Bootstrapping computation of availability for a repairable system with standby subject to imperfect switching. ─Communications in Statistics - Simulation and Computation, 40, 469-483. [SCI]

27. J.-C. Ke*, C.-H. Wu, W.-L. Pearn, (2011).Notes on the computation of Laplace-Stieljes transform for Lognormal and Weibull.─Mathematical and Computational Applications,16(3), 641-648. [EI]

28. C.-H. Wu, J.-C. Ke*, (2010, Nov).Computational algorithm and parameter optimization for a multi-server system with unreliable servers and impatient customers.─Journal of Computational and Applied Mathematics, 235, 547-562. [SCI]

29. C.-H. Lin, J.-C. Ke, H.-I. Huang, F.-M. Chang, (2010, Sep).The approximation analysis of the discrete-time Geo/Geo/1 system with additional optional service. ─International Journal of Computer Mathematics, 87(11), 2574– 2587. [SCI]

30. J.-C. Ke*, C.-H. Lin, (2010, Jul).Maximum entropy approach to machine repair problem. ─International Journal of Services Operations and Informatics,5(3), 197-208. [EI]

31. J.-C. Ke*, K.-B. Huang, W.-L. Pearn, (2010, Jun).The randomized vacation policy for a batch arrival queue. ─Applied Mathematical Modelling,34, 1524- 1538. [SCI]

32. C.-L. Lin, J.-C. Ke*, (2010, Jun).Genetic algorithm for optimal thresholds of an infinite capacity multi-server system with triadic policy. ─Expert Systems With Applications, 37(6), 4276-4282. [SCI]

33. J.-C. Ke*, K.-B. Huang, (2010, Apr).Analysis of an unreliable server M[x]/G/1 system with a randomized vacation policy and delayed repair. ─Stochastic Models,26(2), 212-241. [SCI]

34. J.-C. Ke*, C.-J. Chang, F.-M. Chang, (2010, Mar).Controlling arrivals for a Markovian queueing system with a second optional service.─International Journal of Industrial Engineering - Theory, Applications and Practice, 17(1), 48-57. [SCI]

35. J.-C. Ke*, K.-B. Huang, W.-L. Pearn, (2010, Mar).Randomized policy of a Poisson input queue with J vacations.─Journal of Systems Science and Systems Engineering,19(1), 050-071. [SCI]

36. J.-C. Ke*, Z.-L. Su, K.-H. Wang, Y.-L. Hsu, (2010, Mar).Simulation inferences for an availability system with general repair distribution and imperfect fault coverage. ─Simulation Modelling Practice and Theory, 18(3), 338-347. [SCI]

37. J.-C. Ke*, H.-I. Huang, Y.-K. Chu, (2010, Feb).Batch arrival queue with Npolicy and at most J vacations. ─Applied Mathematical Modelling, 34(2), 451-466. [SCI]

38. J.-C. Ke*, H.-I. Huang, C.-H. Lin, (2010, Feb).Analysis on a queue system with heterogeneous servers and uncertain patterns. ─Journal of Industrial and Management Optimization,6(1), 57-71. [SCI]

39. J.-C. Ke*, F.-M. Chang, (2010, Jan).Analysis of a batch retrial queue with Bernoulli vacation and starting failures. ─International Journal of Services Operations and Informatics,5(2), 95-114. [EI]

40. J.-C. Ke, Y.-K. Chu, (2009, Nov).Evaluating queue waiting probability for the general input system. ─International Journal of Information and Management Sciences, 20(4), 635-643. [EI]

41. J.-C. Ke, Y.-K. Chu, (2009, Nov).Comparison on five estimation approaches of intensity for a queueing system with short run. ─Computational Statistics,24, 567-582. [SCI]

42. S.-L. Lee, J.-C. Ke*, Y.-L. Hsu, (2009, Nov).Bayesian assessing for a repairable system with standby imperfect switching and reboot delay.─International Journal of Systems Science, 40, 1149-1159. [SCI]

43. F.-M. Chang, J.-C. Ke*, (2009, Oct).On a batch retrial model with J vacations. ─Journal of Computational and Applied Mathematics, 232, 402-414. [SCI]

44. G. Choudhury, J.-C. Ke, L. Tadj, (2009, Sep).The N-policy for an unreliable server with delaying repair and two phases of service. ─Journal of Computational and Applied Mathematics, 231(1), 349-364. [SCI]

45. Y.-K. Chu, J.-C. Ke*, (2009, Sep).Analysis of intensity for a queueing system: bootstrapping computation.─International Journal of Services Operations and Informatics,4(3), 195 - 211. [EI]

46. J.-C. Ke*, F.-M. Chang, (2009, Aug).Modified vacation policy for M/G/1 retrial queue with balking and feedback.─Computers and Industrial Engineering,57, 433-443. [SCI]

47. J.-C. Ke*, F.-M. Chang, (2009, Jul).M[x]/(G1,G2)/1 retrial queue under Bernoulli vacation schedules with general repeated attempts and starting failures.─Applied Mathematical Modelling, 33, 3186-3196. [SCI]

48. J.-C. Ke*, Y.-K. Chu, (2009, Jul).Notes of M/G/1 system under the (p, T)policy with second optional service. ─Central European Journal of Operations Research, 17, 425–431. [SCI]

49. C.-H. Lin, J.-C. Ke*, (2009, Jul).Multi-server system with single working vacation. ─Applied Mathematical Modelling,33(7), 2967-2977. [SCI]

50. T.-Y. Wang, J.-C. Ke, (2009, Jul).The randomized threshold for the discretetime Geo/G/1 queue. ─Applied Mathematical Modelling,33(7), 3178-3185. [SCI]

51. J.-C. Ke, Y.-K. Chu, Y.-T. Chung, P.-C. Lin, (2009, Jun).Assessing nonnormally distributed processes by interval estimation of the incapability index.─Quality and Reliability Engineering International, 25(4), 427-437. [SCI].

52. J.-C. Ke*, Z.-L. Su, K.-H. Wang, (2009, Apr).An availability system with general repair distribution: Statistical inference. ─Communications in Statistics -Theory and Methods, 38(9), 1508-1525. [SCI]

53. J.-C. Ke, C.-H. Lin, H.-I. Huang. , (2009, Apr).Entropy maximization and NT vacation M/G/1 model with a startup and unreliable server: Comparative analysis on the first moments of system size. ─International Journal of Computer Mathematics, 86(4), 703 - 718. [SCI]

54. Y.-L. Hsu, S.-L. Lee, J.-C. Ke*, (2009, Mar).A repairable system with imperfect coverage and reboot: Bayesian and asymptotic estimation. ─Mathematics and Computers in Simulation, 79, 2227-2239. [SCI]

55. C.-H. Lin, J.-C. Ke, (2009, Feb).Optimal operating policy for a controllable queueing model with a fuzzy environment. ─Journal of Zhejiang University- SCIENCE A, 10(2), 311-318. [SCI]

56. J.-C. Ke*, C.-H. Liou, S.-L. Lee, (2009, Jan).Machine repair problem in production systems with spares and server vacations. ─RAIRO-Operations Research,43(1), 35-54. [SCI]

57. H.-IHuang, J.-C. Ke*, (2009).Comparative analysis on a redundant repairable system with different configurations.─Engineering Computations, 26(3&4), 422-439. [SCI]

58. J.-C. Ke*, H.-I. Huang, C.-H. Lin, (2008, Dec).A redundant repairable system with imperfect coverage and fuzzy parameters.─Applied Mathematical Modelling, 32, 2839 - 2850. [SCI]

59. Y.-L. Hsu, J.-C. Ke*, S.-L. Lee, (2008, Nov).On a redundant repairable system with switching failure: Bayesian approach.─Journal of Statistical Computation and Simulation,78, 1163-1180. [SCI]

60. J.-C. Ke*, C.-H. Lin, (2008, Nov).Maximum entropy approach for batch arrival queue under N policy with an un-reliable server and single vacation. ─Journal of Computational and Applied Mathematics,221(1), 1-15. [SCI]

61. J.-C. Ke, Y.-K. Chu, J.-H. Lee, (2008, Nov).Bootstrapping comparison on availability of parallel systems with non-identical components.─Engineering Computations, 25(8), 801-816. [SCI]

62. C.-H. Lin, H.-I. Huang, J.-C. Ke, (2008, Nov).On a batch arrival queue with setup and uncertain parameter patterns. ─International Journal of Applied Science and Engineering,6(2), 163-180. [TSSCI]

63. D.-Y. Yang, K.-H. Wang, J.-C. Ke, W.-L. Pearn, (2008, Nov).Optimal randomized control policy of an unreliable server system with second optional service and startup. ─Engineering Computations,25(8), 783-800. [SCI]

64. J.-C. Ke*, Y.-K. Chu, (2008, Oct).Optimization on bicriterion policies for M/G/1 system with second optional service.─Journal of Zhejiang University- SCIENCE A,9(10), 1437-1445. [SCI]

65. J.-C. Ke*, C.-H. Lin, (2008, Oct).Sensitivity analysis of machine repair problems in manufacturing systems with service interruptions.─Applied Mathematical Modelling, 32(10), 2087-2105. [SCI]

66. J.-C. Ke, S.-L. Lee, Y.-L. Hsu, Y.-T. Chen, (2008, Oct).On a repairable system with an unreliable service station: Bayesian approach. ─Computers and Mathematics with Applications,56, 1668-1683. [SCI]

67. J.-C. Ke*, H.-I. Huang, C.-H. Lin, (2008, Sep).Parametric Programming Approach for a Two-Unit Repairable System With Imperfect Coverage,Reboot and Fuzzy Parameters.─IEEE Transactions on Reliability,57(3), 498-506. [SCI]

68. J.-C. Ke*, M.-Y. Ko, S.-H. Sheu, (2008, Jul).Estimation comparison on busy period for a controllable M/G/1 system with bicriterion policy. ─Simulation Modelling Practice and Theory, 16, 645–655. [SCI]

69. H.-I. Huang, C.-H. Lin, J.-C. Ke*, (2008, May).Two-unit repairable system with common-cause shock failures and fuzzy parameters: Parametric programming approach.─International Journal of Systems Science, 39(5), 449-459. [SCI]

70. K.-H. Wang, C.-C. Kuo, J.-C. Ke, (2008, May).Optimal control of the D policy M/G/1 queueing system with server breakdowns. ─American Journal of Applied Sciences, 5 (5), 565-573.

71. J.-C. Ke, (2008, Apr).An M[x]/G/1 system with startup server and J additional options for service. ─Applied Mathematical Modelling, 32, 443-458. [SCI]

72. J.-C. Ke*, S.-L. Lee, Y.-L. Hsu, (2008, Apr).Bayesian analysis for a redundant repairable system with imperfect coverage.─Communications in Statistics-Simulation and Computation, 37, 993–1004. [SCI]

73. J.-C. Ke*, S.-L. Lee, Y.-L. Hsu, (2008, Mar).On a repairable system with detection, imperfect coverage and reboot: Bayesian approach. ─Simulation Modelling Practice and Theory,16, 353-367. [SCI]

74. K.-H. Wang, C.-H. Chen, J.-C. Ke, (2008, Feb).Optimal management for a finite M/M/R queueing system with multiple customer classes. ─International Journal of Advanced Manufacturing Technology, 36, 188-194. [SCI]

75. K.-H. Wang, C.-C. Oh, J.-C. Ke*, (2008, Feb).Cost analysis of the Runreliable- unloader queueing system. ─Asia-Pacific Journal of Operational Research, 25(1), 57-73. [SCI]

76. J.-C. Ke, (2008, Jan).Two thresholds of a batch arrival queueing system under modified T vacation policy with startup and closedown. ─Mathematical Methods In The Applied Sciences,31, 229-247. [SCI]

77. J.-B. Ke, W.-C. Lee, J.-C. Ke, (2008, --).Reliability-based measure for a system with standbys subject to switching failures.─Engineering Computations,25(7), 694-706. [SCI]

78. J.-C. Ke*, M.-Y. Ko, K.-C. Chiou, (2008, --).Analysis of 2^4 factorial design for a controllable M/G/1 system. ─Mathematical and Computational Applications, 13(3), 165-174. [EI]

79. L. Tadj, J.-C. Ke, (2008, --).A hysteretic bulk quorum queue with a choice of service and optional re-service.─Quality Technology & Quantitative Management, 5(2), 161-178. [SCI]

80. H.-I. Huang. , C.-H. Lin, J.-C. Ke*, (2008).A nonpreemptive priority system with fuzzy parameters.─American Journal of Mathematical and Management Sciences, 28, 155-175. [EI]

81. Y.-L. Hsu, J.-C. Ke, T.-H. Liu, (2011, Jul).Standby system with general repair, reboot delay, switching failure and unreliable repair facility—A statistical standpoint.─Mathematics and Computers in Simulation,81,2400-2413.[SCI]

82. J.-C. Ke*, Y.-K. Chu, J.-Y. Lin, (2008, May).Comparing confidence limits for short–run process incapacity index Cpp.─Physica A: Statistical Mechanics and its Applications,387(13), 3227-3238.[SCI]

83. J.-C. Ke*, Y.-K. Chu, (2007).Nonparametric analysis on system availability: confidence bound and power function.─Journal of Mathematics and Statistics,3(4), 181-187. [ISI]

84. J.-C. Ke*, S.-L. Lee, (2007).Asymptotic confidence limits for a repairable system with standbys subject to switching failures.─American Journal of Applied Sciences,4(11), 834-849. [ISI]

85. J.-C. Ke, (2007).Operating characteristic analysis on the M[x]/G/1 system with a variant vacation policy and balking.─Applied Mathematical Modelling, 31(7), 1321-1337. [SCI]

86. J.-C. Ke, (2007).Batch arrival queues under vacation policies with server breakdowns and startup/closedown times.─Applied Mathematical Modelling,31(7), 1282-1292. [SCI]

87. J.-C. Ke*, K.-H. Wang, (2007).Vacation policies for machine repair problem with two type spares.─Applied Mathematical Modelling, 31(5), 880-894. (NSC93-2213-E-025-005). [SCI]

88. K.-H. Wang, M.-C. Chan, J.-C. Ke, (2007).Maximum entropy analysis of the M[x]/M/1 queueing system with multiple vacations and server breakdowns.─Computers and Industrial Engineering, 52(2), 192-202. [SCI]

89. K.-H. Wang, J.-B. Ke, J.-C. Ke, (2007).Profit analysis of the M/M/R machine repair problem with balking, reneging, and standby switching failures.─Computers and Operations Research, 34(3), 835-847. [SCI]

90. J.-C. Ke, H.-I. Huang, C.-H. Lin, (2007).On retrial queueing model with fuzzy parameters.─Physica A:Statistical Mechanics And Its Applications, 374, 272-280. [SCI]

91. J.-C. Ke*, Y.-K. Chu, (2007).Comparative analysis of availability for a redundant repairable system.─Applied Mathematics and Computation,188(1), 332-338. [SCI]

92. Y.-K. Chu, J.-C. Ke*, (2007).Mean response time for a G/G/1 queueing system: Simulated computation.─Applied Mathematics and Computation,186(1), 772-779. [SCI]

93. Y.-K. Chu, J.-C. Ke, (2007).Interval estimation of mean response time for a G/M/1 queueing system: empirical Laplace function approach.─Mathematical Methods in the Applied Sciences, 30(6),  707-715. [SCI]

94. J.-C. Ke*, H.-I. Huang, C.-H. Lin, C.-H. Lin, (2006).A batch-arrival queue with multiple servers and fuzzy parameters: parametric programming approach.─Mathematical and Computational Applications, 11(3), 181-191. [EI]

95. J.-C. Ke, (2006).Performance analysis of an unloader queueing system with vacation schemes.─International Journal of Industrial Engineering: Theory, Applications and Practice, 13(3), 235-245. [SCI]

96. J.-C. Ke*, C.-H. Lin, (2006).Maximum entropy solutions for batch arrival queue with an un-reliable server and delaying vacations.─Applied Mathematics and Computation,183, 1328-1340. [SCI]

97. J.-C. Ke, Y.-K. Chu, (2006).Nonparametric and simulated analysis of intensity for a queueing system.─Applied Mathematics and Computation, 183, 1280-1291[SCI]

98. J.-C. Ke*, H.-I. Huang, C.-H. Lin, (2006).Fuzzy analysis for steady-state availability: a mathematical programming approach.─Engineering Optimization,38(8), 909-921. [SCI]

99. H.-I. Huang, C.-H. Lin, J.-C. Ke*, (2006).Parametric nonlinear programming approach for a repairable system with switching failure and fuzzy parameters.─Applied Mathematics and Computation,183(1), 508-517. [SCI]

100. J.-C. Ke*, K.-H. Wang, C.-H. Liou, (2006).A single vacation model G/M/1/K with N threshold policy.─SANKHY Ā - The Indian Journal of Statistics, 68(2), 198-226. (NSC92-2213-E-025-001)

101. Y.-K. Chu, J.-C. Ke*, (2006).Confidence intervals of mean response time for an M/G/1 queueing system: Bootstrap simulation.─Applied Mathematics and Computation, 180, 255–263. [SCI]

102. J.-C. Ke*, H.-I. Huang, C.-H. Lin, (2006).Parametric programming approach for batch arrival queues with vacation policies and fuzzy parameters.─Applied Mathematics and Computation, 180, 217–232. [SCI]

103. J.-C. Ke, (2006).Optimal NT policies for M/G/1 system with a startup and unreliable server.─Computers and Industrial Engineering, 50, 248-262. [SCI]

104. Y.-H. Chien, J.-C. Ke*, S.-L. Lee, (2006).Asymptotic confidence limits for performance measures of a repairable system with imperfect service station.─Communication in Statistics-Simulation and Computation 35, 813-830. [SCI]

105. J.-C. Ke, H.-I. Huang, C.-H. Lin, (2006).A queueing system with modified vacation policy and fuzzy parameters.─Advance in Fuzzy Sets and Systems,1, 41-62.

106. J.-C. Ke*, C.-H. Liou, S.-L. Lee, (2006).An optimum maintenance strategy for machine repair problem with spares and server vacations.─ Journal of Information & Optimization Sciences,27(3), 701-722. [EI]

107. J.-C. Ke*, K.-H. Wang, (2006).A general input queue with N policy and service rate depending on bulk size.─International Journal of Operations Research, 3(1), 7-15.

108. J.-C. Ke, (2006).Vacation policies for machine interference problem with an un-reliable server and state-dependent service rate.─Journal of the Chinese Institute of Industrial Engineers, 23(2), 100-114. [EI].(NSC93-2213-E-025-005)

109. J.-C. Ke*, Y.-K. Chu, (2006).A modified vacation model M[x]/G/1 system.─Applied Stochastic Models in Business and Industry,22, 1-16. [SCI]

110. KeJ.-C. *, C.-H. Lin, (2006).Fuzzy analysis of queue systems with an unreliable server: A nonlinear programming approach.─Applied Mathematics and Computation, 175, 330-346. [SCI]

111. T.-Y. Wang, J.-C. Ke, K.-H. Wang, S.-C. Ho, (2006).Maximum likelihood estimates and confidence intervals of an M/M/R queue with heterogeneous servers.─Mathematical Methods of Operations Research, 63(2), 371-384. (NSC92-2213-E-025-002)[SCI]

112. J.-C. Ke, (2006).On M/G/1 system under NT policies with breakdowns, startup and closedown.─Applied Mathematical Modelling,30, 49-66. [SCI]

113. J.-C. Ke, (2006).An M/G/1 queue under hysteretic vacation policy with an early startup and un-reliable server.─Mathematical Methods of Operations Research,63(2), 357-369. [SCI]

114. J.-C. Ke, (2005).Threshold control for a removable and un-reliable server with different type vacations and startup.─American Journal of Mathematical and Management Sciences,25, 97-120. [EI]

115. J.-C. Ke*, C.-H. Lin, (2005).A Markov repairable system involving an imperfect service station with multiple vacations.─Asia-Pacific Journal of Operational Research,22(4), 555-582. [SCI]

116. J.-C. Ke, (2005).Modified T vacation policy for an M/G/1 queueing system with an un-reliable server and startup.─Mathematical and Computer Modelling, 41, 1267-1277. [SCI]

117. K.-H. Wang, L.-P. Wang, J.-C. Ke, G. Chen, (2005).Comparative analysis for the N policy M/G/1 queueing system with a removable and unreliable server.─Mathematical Methods of Operations Research, 61(3), 505-520. [SCI]

118. L. Tadj, J.-C. Ke, (2005).Control policy of a hysteretic bulk queueing system.─Mathematical and Computer Modelling, 41, 571-579. [SCI]

119. K.-H. Wang, S.-C. Chen, J.-C. Ke, (2004).Maximum likelihood estimates and confidence intervals of an M/M/R/N queue with balking and heterogeneous servers.─RAIRO Operations Research,38, 227-242. [SCI]

120. J.-C. Ke, (2004).The optimal control in batch arrival queue with server vacations, startup and breakdowns.─Yugoslav Journal of Operations Research,14(1), 41-55[EI]

121. J.-C. Ke, (2004).Bi-level control for batch arrival queues with an early startup and un-reliable server.─Applied Mathematical Modelling,28, 469-485. [SCI]

122. W.-L. Pearn, J.-C. Ke, Y. C. Chang, (2004).Sensitivity analysis of the optimal management policy for a queueing system with a removable and non-reliable server.─Computers and Industrial Engineering,46, 87-99. [SCI]

123. J.-C. Ke, W.-L. Pearn, (2004).Optimal management policy for heterogeneous arrival queueing systems with server breakdowns and vacations.─Quality Technology & Quantitative Management,1, 147-159. [CIS, MR/MathSciNet]

124. J.-C. Ke, K.-H. Wang, (2003).Analysis of operating characteristics for the heterogeneous batch arrival queue with server startup and breakdowns.─RAIRO Operations Research,37, 157-178. [SCI]

125. J.-C. Ke, (2003).The analysis of general input queue with N policy and exponential vacations.─Queueing Systems, 45, 135-160. (NSC92-2213-E-025-001)[SCI]

126. J.-C. Ke, (2003).Optimal strategy policy in batch arrival queue with server breakdowns and multiple vacations.─Mathematical Methods of Operations Research,58(1), 41-56. [SCI]

127. L. Tadj, J.-C. Ke, (2003).Control policy of a hysteretic queueing system.─Mathematical Methods of Operations Research, 57(3), 367-376. [SCI]

128. K.-H. Wang, J.-C. Ke, (2003).Probabilitic analysis of a repairable system with warm standbys plus balking and reneging.─Applied Mathematical Modelling, 27(4), 327-336. [SCI]

129. K.-H. Wang, Y.-C. ChangJ.-C. Ke, (2003).Cost analysis of the unloader queueing system with a single unloader subject to breakdowns.─Journal of the Operational Research Society, 54, 515-520. [SCI]

130. J.-C. Ke, (2003).The optimal control of an M/G/1 queueing system with server vacations, startup and breakdowns.─Computers and Industrial Engineering,44(4), 567-579. (NSC91-2213-E-025-002)[SCI]

131. J.-C. Ke, (2003).The operating characteristic analysis on a general input queue with N policy and a startup time.─Mathematical Methods of Operations Research, 57(2), 235-254. [SCI]

132. J.-C. Ke, (2003).The optimal control of an M/G/1 queueing system with server startup and two vacation types.─Applied Mathematical Modelling, 27, 437-450. [SCI]

133. J.-C. Ke, K.-H. Wang, (2002).The reliability analysis of balking and reneging in a repairable system with warm standby.─Quality and Reliability Engineering International, 18, 467-478. [SCI]

134. J.-C. Ke, (2002).Two-threshold policy for M[x]/G/1 queueing system with two vacation types, startup time and an un-reliable server.─International Journal of Information and Management Sciences, 13(2), 51-67. [EI]

135. J.-C. Ke, K.-H. Wang, (2002).A recursive method for the N policy G/M/1 queueing system with finite capacity.─European Journal of Operational Research, 142(3), 577-594. [SCI]

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