Convexity Properties for a Function of Two Integer Variables
Sara Nourazari, Hillel Kumin

Am. J. Oper. Res. Vol.11 No.6, October 13, 2021
DOI: 10.4236/ajor.2021.116016

Breeding Particle Swarm Optimization for Railways Rolling Stock Preventive Maintenance Scheduling
Tarek Aboueldah, Hanan Farag

Am. J. Oper. Res. Vol.11 No.5, September 10, 2021
DOI: 10.4236/ajor.2021.115015

Unsupervised Methods to Classify Real Data from Offshore Wells
Antônio Orestes De Salvo Castro, Mayara De Jesus Rocha Santos, Fabiana Rodrigues Leta, Cláudio Benevenuto C. Lima, Gilson Brito Alves Lima

Am. J. Oper. Res. Vol.11 No.5, September 02, 2021
DOI: 10.4236/ajor.2021.115014

PERT and CPM in Project Management with Practical Examples
Karibo Benaiah Bagshaw

Am. J. Oper. Res. Vol.11 No.4, July 30, 2021
DOI: 10.4236/ajor.2021.114013

Analysis of an Inventory System for Items with Price-Dependent Demand and Time Dependent Three-Parameter Weibull Deterioration Function
O. Nwoba Pius, I. E. Chukwu Walford, S. Maliki Olaniyi

Am. J. Oper. Res. Vol.11 No.4, July 30, 2021
DOI: 10.4236/ajor.2021.114012