List of Articles Vacation Open Access Article Abstract Page Full-Text 1 - Fault tolerant system with imperfect coverage, reboot and server vacation Madhu Jain Rakesh Kumar Meena Open Access Article Abstract Page Full-Text 2 - Unreliable bulk retrial queues with delayed repairs and modified vacation policy Madhu Jain Amita Bhagat Open Access Article Abstract Page Full-Text 3 - Analysis of M/G/ 1 queueing model with state dependent arrival and vacation Charan Jeet Singh Madhu Jain Binay Kumar Open Access Article Abstract Page Full-Text 4 - Vacation model for Markov machine repair problem with two heterogeneous unreliable servers and threshold recovery Madhu Jain Rakesh Kumar Meena Open Access Article Abstract Page Full-Text 5 - Analysis of a Single Server Queue with Working Vacation and Vacation Interruption Shakir Majid P Manoharan Open Access Article Abstract Page Full-Text 6 - Perishable Inventory Model with Retrial Demands, Negative Customers and Multiple Working Vacations Vijaya Laxmi Pikkala Soujanya M.L. Open Access Article Abstract Page Full-Text 7 - Transient Solution of an M/M/1 Variant Working Vacation Queue with Balking Vijaya Laxmi Pikkala Rajesh Pilla Open Access Article Abstract Page Full-Text 8 - Discrete Time Analysis of Multi-Server Queueing System with Multiple Working Vacations and Reneging of Customers Vijaya Laxmi Pikkala Wondewosen Kassahun Open Access Article Abstract Page Full-Text 9 - Bat Algorithm for Optimal Service Parameters in an Impatient Customer N-Policy Vacation Queue Vijaya Laxmi Pikkala Open Access Article Abstract Page Full-Text 10 - ANALYSIS OF A DISCRETE-TIME IMPATIENT CUSTOMER QUEUE WITH BERNOULLI-SCHEDULE VACATION INTERRUPTION P. Vijaya Laxmi K. Jyothsna Open Access Article Abstract Page Full-Text 11 - FINITE POPULATION SINGLE SERVER BATCH SERVICE QUEUE WITH COMPULSORY SERVER VACATION Rathinasabapathy Kalyanaraman R. Mahalakshmi Open Access Article Abstract Page Full-Text 12 - ON (A,C,B) POLICY QUEUE WITH CHANGE OVER TIMES UNDER BERNOULLI SCHEDULE VACATION INTERRUPTION Vijaya Laxmi Pikkala Seleshi Demie Open Access Article Abstract Page Full-Text 13 - AN M/G/1 QUEUE WITH REGULAR AND OPTIONAL PHASE VACATION AND WITH STATE DEPENDENT ARRIVAL RATE Rathinasabapathy Kalyanaraman Shanthi R Open Access Article Abstract Page Full-Text 14 - A SINGLE SERVER BERNOULLI VACATION QUEUE WITH TWO TYPE OF SERVICES AND WITH RESTRICTED ADMISSIBILITY R. Kalyanaraman V. Suvitha Open Access Article Abstract Page Full-Text 15 - ANALYSIS OF RENEWAL INPUT STATE DEPENDENT VACATION QUEUE WITH $N$-POLICY Vijaya Laxmi Pikkala Suchitra Vepada