Research Paper Fuzzy optimization
A compromise solution for the neutrosophic multi-objective linear programming problem and its application in transportation problem

Elham Hosseinzadeh; Javad Tayyebi

Volume 10, Issue 1 , March 2023, Pages 1-10

  Neutrosophic set theory plays an important role in dealing with the impreciseness and inconsistency in data encountered in solving real-life problems. The current paper focuses on the neutrosophic fuzzy multiobjective linear programming problem (NFMOLPP), where the coefficients of the objective functions, ...  Read More

Research Paper Data mining
Analyzing Behavioral Patterns of Bus Passengers Using Data Mining Methods (Case Study: Rapid Transportation Systems)

Amir Daneshvar; Fariba Salahi; Maryam Ebrahimi; Bijan Nahavandi

Volume 10, Issue 1 , March 2023, Pages 11-24

  The aim of analyzing passengers' behavioral patterns is providing support for transportation management. In other words, to improve services like scheduling, evacuation policies, and marketing, it is essential to understand spatial and temporal patterns of passengers' trips. Smart Card Automated Fare ...  Read More

Research Paper production planning
Solving a Multi-Objective Mathematical Model for Aggregate Production Planning in a Closed-loop Supply Chain Under Uncertain Conditions

Ommolbanin Yousefi; Saeed Rezaeei Moghadam; Neda Hajheidari

Volume 10, Issue 1 , March 2023, Pages 25-44

  One of the most important decisions taken in a supply chain is the issue of aggregate production planning where a program-within a medium time-range-- is determined for optimum manufacturing of all products using shared equipment and resources. This research presents a multi-objective model that helps ...  Read More

Research Paper Case studies in industry and services
Lean at Home: Applying 5 Whys and Lean PFMEA to Home Projects

Robert S Keyser; Parisa Pooyan

Volume 10, Issue 1 , March 2023, Pages 45-55

  Root cause analysis techniques are often applied to problems in the workplace; however, they may also prove very useful to home projects. This research explores the application of two root cause analysis techniques in home projects: (1) 5 Whys to determine the root cause of a home air conditioning unit ...  Read More

Research Paper Scheduling
Integration of two-stage assembly flow shop scheduling and vehicle routing using Improved Whale Optimization Algorithm

Vahid Bahmani; Mohammad Amin Adibi; Esmaeil Mehdizadeh

Volume 10, Issue 1 , March 2023, Pages 56-83

  This paper provides an integrated model for a two-stage assembly flow shop scheduling problem and distribution through vehicle routing in a soft time window. So, a mixed-integer linear programming (MILP) model has been proposed with the objective of minimizing the total cost of distribution, holding ...  Read More

Research Paper Data Envelopment Analysis, DEA
Cost Efficiency in the Presence of Time Dependent Prices

Jafar Pourmahmoud; Naser Kaheh; Farhad Hosseinzadeh Lotfi

Volume 10, Issue 1 , March 2023, Pages 84-96

  In traditional cost-efficiency models, inputs and outputs, as well as input prices were known as constant values for each decision-making unit In our daily applications, however, market entry prices vary at different times. In other words, input prices for decision-making units (DMUs) are time dependent. ...  Read More

Research Paper Statistical Process
A Data-Driven Design for Gas Turbines Exit Temperature Spread Condition Monitoring System

Nastaran Hajarian; Farzad Movahedi Sobhani; Seyed Jafar Sadjadi

Volume 10, Issue 1 , March 2023, Pages 97-112

  One of the most complex and costly systems in the industry is the Gas turbine (GT). Because of the complexity of these assets, various indicators have been used to monitor the health condition of different parts of the gas turbine. Turbine exit temperature (TET) spread is one of the significant indicators ...  Read More

Research Paper Forecasting, production planning, and control
Estimating Production Losses From COVID-19 Pandemic Disruptions Based On Stock Returns

Obojobo Obukeajeta Donatus; Chima Uzorh

Volume 10, Issue 1 , March 2023, Pages 113-124

  Economic or local disruptions that affect organizations' production activities often result in unexpected losses. An excellent example is the recent COVID-19 pandemic disruption which affected many economies globally. This study presents a deterministic model and uses simple regression analysis to estimate ...  Read More

Research Paper Management and Entrepreneurship
Open innovation and SMEs: providing a model for business development (an application on Iranian industrial park)

Younos Vakil Alroaia

Volume 10, Issue 1 , March 2023, Pages 125-140

  The aim of this study is providing a developed model for SMEs' in open innovation activities. In this regard, an appropriate model was defined by studying the literature. Then, after selecting a sample of 60 small and medium enterprises the data were collected by a questionnaire and were analyzed with ...  Read More

Research Paper Scheduling
A Bi-Objective Optimal Task Scheduling Model for Two-Machine Robotic-Cell Subject to Probable Machine Failures

Bahareh Vaisi; Hiwa Farughi; Sadigh Raissi; Heibatolah Sadeghi

Volume 10, Issue 1 , March 2023, Pages 141-154

  In this study, we model a stochastic scheduling problem for a robotic cell with two unreliable machines susceptible to breakdowns and subject to the probability of machine failure and machine repair. A single gripper robot facilitates the loading/unloading of parts and cell-internal movement. Since it ...  Read More