Case studies in industry and services
Assessment of fuzzy failure mode and effect analysis (FMEA) for reach stacker crane (RST): A case study

Md. Fazel Rabbi

Volume 7, Issue 3 , November 2018, , Pages 336-348

http://dx.doi.org/10.22105/riej.2018.140970.1050

Abstract
  FMEA (Failure Mode and Effect Analysis) refers to a proactive quality tool that enables the identification and prevention of the potential failure modes of a product or process. However, in executing traditional FMEA, the difficulties such as vague information, relative importance ratings, decisions ...  Read More

Decision analysis and methods
Application of fuzzy AHP and TOPSIS methods for risk evaluation of gas transmission facility

A. Lazar Farokhi

Volume 8, Issue 4 , December 2019, , Pages 339-365

http://dx.doi.org/10.22105/riej.2019.102689

Abstract
  Today, the use of risk assessment methods in various industries is expanding, as there are currently more than 70 different types of qualitative and quantitative risk assessment methods in the world. These methods are usually used to identify, control and mitigate the effects of hazards. Organizations ...  Read More

Economics
Optimum solar and wind model with particle optimization (PSO)

N. Salehi; H. R. Askarzadeh

Volume 7, Issue 4 , December 2018, , Pages 460-467

http://dx.doi.org/10.22105/riej.2018.148836.1059

Abstract
  Although the development of science and technology in the present era has increased human satisfaction from life, it has caused the problems such as environmental pollution and increased demand for energy carriers, especially fossil fuels. Considering that fossil fuels can be exhausted, the most suitable ...  Read More

A Novel Approach for Solving Fuzzy Multi-Objective Zero-One Linear Programming Problems

H. Sheikhi

Volume 1, Issue 1 , June 2012, , Pages 42-63

Abstract
  Fuzzy multi-objective zero-one linear programming (FMOZOLP) has many applications in various fields such as assembly line balancing, assignment, project portfolio selection and maximal covering location problems. In many of the existing methods for solving FMOZOLP problems, membership degree of different ...  Read More

A Hybridized Lagrangian Genetic Algorithm for Designing an Integrated Supply Chain Network: A Case Study Approach

A. Jafari; P. Chiniforooshan; F. Zabihi

Volume 2, Issue 1 , February 2013, , Pages 45-62

Abstract
  This paper investigates the problem of designing an integrated production-distribution system which supports strategic and tactical decision levels in supply chain management. This overall optimization is achieved using mathematical programming for modeling the supply chain functions such as location, ...  Read More

Open Vehicle Routing Problem Optimization under Realistic Assumptions

Kh. Pichka; B. Ashjari; A. Ziaeifar; P. Nickbeen

Volume 3, Issue 2 , May 2014, , Pages 46-55

Abstract
  MDOVRP is a variant of classical VRP, which seeks to find a set of non-depot returning vehicle routes dispatching form several depots. A new integer linear programming model is presented considering limited number of vehicles at each depot. Randomly generated smallsized MDOVRPs are solved for validation ...  Read More

Minimizing Total Resource Tardiness Penalty Costs in the Resource Constrained Project Scheduling Problem with Metaheuristic Algorithms

R. Golestaneh; A. Jafari; M. Khalilzadeh; H. Karimi

Volume 2, Issue 3 , September 2013, , Pages 47-57

Abstract
  In this paper, we study a resource-constrained project-scheduling problem in which the objective is minimizing total Resource Tardiness Penalty Costs. We assume renewable resources that are limited in number, are restricted to very expensive equipment and machines, therefore they are rented and used ...  Read More

Presenting a New Approach toward Locating Optimal Decoupling Point in Supply Chains

M. Rabbani; H. Yousefnejad; H. Rafiei

Volume 3, Issue 1 , May 2014, , Pages 49-54

Abstract
  This article attempts to cope with one of the most vital strategic decisions in the supply chain design in terms of manufacturing context. The issues of finding the best position of Customer Order Decoupling Point (CODP) in a production line have been taken into consideration by many researchers in recent ...  Read More

Systems and service modeling and simulation
Stuff scheduling in capillary marketing and analyse of its impact on the company’s financial issues

H. Amin-Tahmasbi; M. Hami

Volume 8, Issue 1 , April 2019, , Pages 53-65

http://dx.doi.org/10.22105/riej.2019.159489.1066

Abstract
  In today’s competitive business environment, supply chain performance is one of the most critical issues in the various industries; there is much argumentation about the fact that supply chain performance is the basis of the supply chain management efficiency. In this regard, the distribution sector ...  Read More

Applying the Process Mining Project Methodology for Insurance Risks Reduction

M. Ashoori; M.J. Tarokh

Volume 3, Issue 4 , December 2014, , Pages 57-69

Abstract
  Risk is a destructive phenomenon, which is an integral part of any business. Process mining is a form of a business process analysis based on the recorded process data by information systems, whose its aim is to discover process, control, data, organizational and social structures from event logs. A ...  Read More

How Implementation of E-CRM May Enhance an Organization’s Internal and External Success

B. Kheyri; M. Mardi; Z. Mahzoun

Volume 1, Issue 2 , July 2012, , Pages 58-71

Abstract
  Due to recent advancements in information technology and communication, Electronic Customer Relationship Management has drawn the attention of many firms to achieve competitive advantages. Despite the increasing importance given to understanding their customers better, organizations find inconsistencies ...  Read More

Closed-Loop Supply Chain Network with Green Supplier Selection and Disassembly of Products: A Bi-Objective Model

S. Ghayebloo; M.J. Tarokh; M. Abedzadeh

Volume 2, Issue 4 , December 2013, , Pages 58-71

Abstract
  This paper aims to study the impact of product greenness and part reliability on reverse supply chain network through green supplier selection and disassembly of products. It proposes a bi-objective mathematical modeling for a closed-loop supply chain network considering green supplier selection and ...  Read More

Solving FMS Assignment Problem with Grouping Genetic Algorithm

M.H.M.A. Jahromi; R. Jafari; A. Shamsi

Volume 1, Issue 3 , December 2012, , Pages 60-68

Abstract
  Operations assignment to feasible and suitable machine-tool combination affects the total production costs and selecting the best combinations is important for these systems, this is one of the significant problems in flexible manufacturing systems (FMSs). In this paper, minimizing the machining cost, ...  Read More

Qualitative Evaluation and Selecting the Optimum Public Private Partnership System for Transportation

B. Farhang Moghaddam; A.A. Fatahi

Volume 2, Issue 2 , June 2013, , Pages 61-69

Abstract
  A very effective and strategic factor in the success of transportation projects is the process of selecting an execution system (delivery option). This is the reason why identifying the challenges and selecting an appropriate execution system in transportation projects are quite important; proper selecting ...  Read More

Decision analysis and methods
Analyzing the Drivers of Green Manufacturing Using an Analytic Network Process Method: A Case Study

M. Barzegar; R. Ehtesham Rasi; A. H. Niknamfar

Volume 7, Issue 1 , April 2018, , Pages 61-83

http://dx.doi.org/10.22105/riej.2018.108563.1031

Abstract
  Todays, some challenges such as soil, water and air pollution, and severe health hazards to humanity are the results of growing manufacturer in the real world. These challenges are so-called posing risk for sustainable development of the planet. In this matter, the need of achieving higher economic prosperity, ...  Read More

Case studies in industry and services
An integrated QFD-TOPSIS method for prioritization of major lean tools: a case study

A. Devnath; Md. S. Islam; S. Rashid; E. Islam

Volume 9, Issue 1 , March 2020, , Pages 65-76

http://dx.doi.org/10.22105/riej.2020.213445.1110

Abstract
  Selecting the right lean tool is one of the most challenging tasks for decision-makers. This research represents an integration of two methods, Quality Function Deployment (QFD) and TOPSIS, to evaluate and prioritize the lean tools. The aim of this research is to propose an integrated QFD-TOPSIS method ...  Read More

Ranking Decision Making Units with Negative and Positive Input and Output

F Hosseinzadeh Lotfi; M. Piri

Volume 3, Issue 3 , September 2014, , Pages 69-74

Abstract
  Data Envelopment Analysis (DEA) is a nonparametric method for measuring the efficiency of Decision Making Units (DMUs) which was first introduced by Charnes, Cooper and Rhodes in1978 as the CCR model .One of the most important topics in management science is determining the efficiency of DMUs. DEA technique ...  Read More

Forecasting, production planning, and control
Developing Composite Leading Indicators to Forecast Industrial Business Cycles in Iran

H. Nasiri; K. Taghizadeh; B. Amiri; V. Shaghaghi Shahri

Volume 6, Issue 1 , March 2017, , Pages 69-89

http://dx.doi.org/10.22105/riej.2017.48026

Abstract
  Economic cycles are referred as repeatable movement of economic indicators with different domain and duration. Detection of these cycles may help in forecasting the contraction period or expansions of important parts of the economy specifically industry. In this regard, many economist and researchers ...  Read More

Supply chain management
Dynamic Pricing Decisions for Substitutable Products

S. Aliari-Kardehdeh; S. Ayazi-Yazdi; R. Tavakkoli-Moghaddam; H. Farrokhi-Asl

Volume 6, Issue 2 , June 2017, , Pages 149-160

http://dx.doi.org/10.22105/riej.2017.49170

Abstract
  This paper considers a dynamic pricing decision problem, in which two different manufacturers compete to distribute substitutable products through a single retailer under two presented scenarios. In the first scenario, the pricing policy is determined via a centralized decision-making, while the second ...  Read More

Fuzzy optimization
Ranking efficient DMUs using the Tchebycheff norm with fuzzy data in DEA

S. H. Mirzaei; A. Salehi

Volume 8, Issue 2 , June 2019, , Pages 158-175

http://dx.doi.org/10.22105/riej.2019.169577.1072

Abstract
  In many real applications, the data of production processes cannot be precisely measured. Hence the input and output of Decision Making Units (DMUs) in Data Envelopment Analysis (DEA) may be imprecise or fuzzy-numbered. In original DEA models, inputs and outputs are measured by exact values on a ratio ...  Read More

Facility location, layout, design, and materials handling
Finding optimum facility’s layout by developed simulated annealing algorithm

H. Jafari; M. Ehsanifar; A. Sheykhan

Volume 9, Issue 2 , June 2020, , Pages 172-182

http://dx.doi.org/10.22105/riej.2020.218913.1119

Abstract
  The Quadratic Assignment Problem (QAP) is one of the problems of combinatorial optimization belonging to the NP-hard problems’ class and has a wide application in the placement of facilities. Thus far, many efforts have been made to solve this problem and countless algorithms have been developed ...  Read More

Human factors, ergonomics, and safety
Office chair design: a systematic approach of ergonomic design based on the anthropometric measurement of Bangladeshi people

L. Noshin; H. Sen Gupta; Md. G. Kibria

Volume 7, Issue 2 , September 2018, , Pages 224-234

http://dx.doi.org/10.22105/riej.2018.128451.1040

Abstract
  The world of ergonomic evaluation considerate the human biomechanics and anthropometric measurement an integral part of product design and development work. In this paper, we have given an attempt to design an ergonomically fitted office chair suitable for Bangladeshi people. In this paper, the anthropometric ...  Read More

Case studies in industry and services
Concessioning a Strategy for Enhancing Nigeria’s Airport Operational Efficiency - Lessons from Developed Countries

A. O Adeniran; K. T. Gbadamosi

Volume 6, Issue 3 , November 2017, , Pages 228-245

http://dx.doi.org/10.22105/riej.2017.97500.1013

Abstract
  This study examines some concessioned airports in the developed countries and their operational performance level with a view to identifying the positive impact of concessioning on their growth, development and operational performance. The ultimate goal of the study is to provide basis for adapting the ...  Read More

Some fixed point results involving a general LW-type cyclic mapping in complete b-metric-like spaces

S. Q. Weng

Volume 8, Issue 3 , September 2019, , Pages 262-273

http://dx.doi.org/10.22105/riej.2019.195844.1093

Abstract
  In recent years, the research of the fixed point theorem is a hot topic all the time. In this paper, we propose the notion of new mapping, that is, a general LW-type cyclic mapping, in a complete b-metric-like spaces. Then, we obtain the existence and uniqueness theorem of its fixed point. Moreover, ...  Read More

Operations Research
Produced Water Treatment Using a New Designed Electroflotation Cell

M. A. Abdel Khalek; F. I. El-Hosiny; K. A. Selim; I. Osama

Volume 6, Issue 4 , December 2017, , Pages 328-338

http://dx.doi.org/10.22105/riej.2017.100959.1022

Abstract
  A novel continuous electroflotation cell, about 0.6 liter volume capacity, using aluminum electrodes was designed for oil produced water treatment. The treating performance of a novel continuous electroflotation cell for oil produced water was investigated. The pH, current density, and feed water flow ...  Read More