Inventory, logistics, and transportation
1. Improving the performance of planning and controlling raw material inventory in food industry

Filscha Nurprihatin; Metta Gotami; Glisina Dwinoor Rembulan

Volume 10, Issue 4 , December 2021, , Pages 332-345

http://dx.doi.org/10.22105/riej.2021.306872.1250

Abstract
  This paper discusses the inefficient and inaccurate raw material supply at a food company which results in a backlog. This means the overstock occurs so that the improvement of inventory control needs to be done. ABC classification is firstly utilized as input for Material Requirements Planning (MRP). ...  Read More

Inventory, logistics, and transportation
2. A conceptual framework of green smart IoT-based supply chain management

H. Nozari; M. Fallah; A. Szmelter-Jarosz

Volume 10, Issue 1 , March 2021, , Pages 22-34

http://dx.doi.org/10.22105/riej.2021.274859.1189

Abstract
  The green smart supply chain is a phenomenon that has emerged as a result of the development of sustainable and smart business and information technology trends. Sustainable and green supply chains are an innovative phenomenon that uses information technology to improve the quality of activities in operating ...  Read More

Inventory, logistics, and transportation
3. Customers' satisfaction with the level of service in Murtala Muhammad International Airport (MMIA), Lagos, Nigeria

U. G. Chike; M. S. Stephens

Volume 10, Issue 1 , March 2021, , Pages 35-45

http://dx.doi.org/10.22105/riej.2021.263588.1174

Abstract
  The aim of this study is to examine customers’ satisfaction with the level of service in Murtala Muhammed International Airport (MMIA), Lagos, Nigeria; so as to identify the service attributes requiring managerial attention in the airport. The study evaluated twenty eight service attributes in ...  Read More

Inventory, logistics, and transportation
4. The impact of passenger's traffic on exchange rate and economic growth in Nigerian aviation industry

Ch. G. Udoka

Volume 9, Issue 4 , December 2020, , Pages 364-378

http://dx.doi.org/10.22105/riej.2020.257832.1149

Abstract
  The aim of this study is to examine the impact of passengers’ traffic on Exchange Rate (ER) and economic growth in Nigerian aviation industry. This study adopts an ex-post facto research design, a systematic empirical inquiry in order to carry out the research. Secondary data was obtained from ...  Read More

Inventory, logistics, and transportation
5. Trend extrapolation of domestic air travel demand in Nigeria (2018-2030)

A. Adetayo Adeniran; K. Olufunto Adedotun

Volume 7, Issue 4 , December 2018, , Pages 468-481

http://dx.doi.org/10.22105/riej.2018.143367.1052

Abstract
  Trend analysis of domestic air travel demand in Nigeria was examined based on yearly passenger demand from 2010 to 2017. Ordinary Least Square (OLS) regression was used to forecast for twelve years (2018 to 2030) demand for domestic air passenger travel in Nigeria. The demand for domestic air passenger ...  Read More

Inventory, logistics, and transportation
6. Solving a Bi-Objective Transportation Vehicle Routing Problem for Waste Collection by a New Hybrid Algorithm

H. Farrokhi-Asl; R. Tavakkoli-Moghaddam

Volume 5, 1(4) , November 2016, , Pages 16-42

http://dx.doi.org/10.22105/riej.2017.49168

Abstract
  This paper is an extension of the well-known vehicle routing problem (VRP) consisting of two stages. The first and second stages deal with the vehicle routing and transportation problems, respectively. Waste collection is one of the applications of the considered problem in a real world situation. A ...  Read More