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American Journal of Operations Research (AJOR) is an international scientific journal dedicated to the publication and public discussion of high quality, original papers that contribute to the methodology of operational research and to the practice of decision making. AJOR contains the following types of papers: (1)In…
Mohamed Mostafa Mohamed, Abdulaziz Saleh Alraddadi
Industry 4.0, or the Fourth Industrial Revolution, is based on digitized the manufacturing process and makes use of all digital tools so its combination of various digital technologies computers, ERP software, IoT, machine learning and AI techniques , Manufac…
Yongzhen Zeng, Junkun Wang, Ching-Kuei Kao, King-Zoo Tang
Due to the effects of the COVID-19 pandemic and the rise of online shopping, the offline sales of IKEA Fuzhou have been declining since 2020. Because the cost of distribution warehouse is a major expense for offline chain furniture retailers, and the picking…
Tanzim S. Shaikh, Santosh P. Gite
The objective is to develop a model considering demand dependent on selling price and deterioration occurs after a certain period of time, which follows two-parameter Weibull distribution. Shortages are allowed and fully backlogged. Fuzzy optimal solution is…
Abdur Rashid, Md. Amirul Islam
In operations research, the transportation problem (TP) is among the earliest and most effective applications of the linear programming problem. Unbalanced transportation problems reflect the reality of supply chain and logistics situations where the availabl…
Sephali Mohanty, Trailokyanath Singh, Sudhansu Sekhar Routary, Chinmayee Naik
Th e main purpose of this paper is to generalize the effect of two-phased demand and variable deterioration within the EOQ (Economic Order Quantity) framework. The rate of deterioration is a linear function of time. The two-ph a sed demand function states the…
Essam Al Arbed
Modern financial theory, commonly known as portfolio theory, provides an analytical framework for the investment decision to be made under uncertainty. It is a well-established proposition in portfolio theory that whenever there is an imperfect correlation be…
Eirini I. Nikolopoulou, George S. Androulakis
This paper presents a new dimension reduction strategy for medium and large-scale linear programming problems. The proposed method uses a subset of the original constraints and combines two algorithms: the weighted average and the cosine simplex algorithm. Th…
Dimitris G. Tsarmpopoulos, Christina D. Nikolakakou, George S. Androulakis
Linear programming is a method for solving linear optimization problems with constraints, widely met in real-world applications. In the vast majority of these applications , the number of constraints is significantly larger than the number of variables. Since…
Vardges Melkonian
Remote and Hybrid work ha s been a common practice for many organizati ons in recent years. It has many advantages such as offering a better work-life balance but it might also negatively affect productivity and teamwork. While an organization would like to s…
Nobuyuki Tamura
I consider a system whose deterioration follows a discrete-time and discrete-st ate Markov chain with an absorbing state. When the system is put into practice, I may select operation (wait), imperfect repair, or replacement at each d iscrete - time point. The…
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American Journal of Operations Research (AJOR) is an international scientific journal dedicated to the publication and public discussion of high quality, original papers that contribute to the methodology of operational research and to the practice of decision making. AJOR contains the following types of papers: (1)In… All articles are open access under a CC BY 4.0 licence, with authors retaining copyright.
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Manuscripts must be original and not under consideration elsewhere. Submit in Microsoft Word or LaTeX with figures at 300 dpi minimum. Structure research articles as Abstract, Introduction, Methods, Results, Discussion, and References.
Use the journal's numbered (Vancouver) reference style. Cite sources consecutively in the order they appear, and ensure every reference is complete and retrievable.
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