This study investigates the periodic vehicle routing problem (PVRP) and its variant with time windows with a particular focus on alternative formulation approaches that can be solved by a state-of-the-art commercial solver. We propose a new vehicle flow formulation for the PVRP and strengthen it...

Introduction The purpose of this study was to analyze the current status, the research hot spots and frontiers of cognitive impairment (CI) on old adults from 2012 to 2022 based on Web of Science (WoS) and China National Knowledge Infrastructure (CNKI) via CiteSpace, and provide new in-sights...

The blue economy is an innovative business model which emphasizes carrying out economic activities in symbiosis with nature. It has gained much attention among many countries aiming to accelerate their economic growth through the sustainable exploitation of marine resources. Bangladesh, the...

The aim of the study is to analyze the communication management strategies of the top 40 hotel companies, in terms of turnover, using their corporate accounts on social networks during the Easter holiday campaign in 2021 and 2022. By using apps such as "Data Analytics" and "Content Analytics"...