Future Sustainability

Role of the mass media in the sustainability of blue economy in Nigeria

Edith Otuya-Asohro — 2024-10-07

In recent years, the blue economy has gained significant economic momentum in many countries as a viable means of sustainable economic growth and development while engendering the sustainability of the ecosystem. Consequently, the blue economy is now acknowledged as a veritable means of boosting the socioeconomic growth and development of a country without jeopardizing the sustainability of the ocean and other water bodies. This study examines the potential of the blue economy in Nigeria and the benefits accruable to it if it is properly harnessed. It also highlights the role of the mass media in setting the agenda for public discourse and carrying out developmental functions by creating awareness and educating the citizenry on the numerous opportunities and benefits of the blue economy and the importance of maintaining a healthy marine ecosystem. The study adopted literature-based research as its methodology. Furthermore, the study anchored on the Agenda-Setting Theory and the Development Media Theory as its theoretical approach. Findings revealed that the majority of the Nigerian population, especially those inhabiting the riverine areas and the ocean coastline, are ignorant of the potential of the blue economy in spite of their unfettered access to the marine ecosystem through the expansive inland rivers and the Atlantic Ocean. Findings further revealed that the government has a share of the blame due to the absence of specific policies and programs that will bring the economic benefits of the blue economy to the fore.

Numerical simulation study on fire combustion of advertising board materials in airport terminals

Xiaohong Gui — 2024-10-25

In order to meet the guidance, publicity, and commercial functions, various types of billboards have become important permanent facilities in the airport terminal, which are distributed all over the terminal. The advertising materials inside billboards have certain fire hazards, and there is a lack of research on the fire risk of advertising materials at present. Therefore, it is necessary to study the fire risk of advertising materials in airport terminals. Taking PVC board, a commonly used advertising material, as the research object, Pyrosim was used to model and analyze its fire, and the characteristics of fire spread, smoke flow, and distribution of combustion products such as CO and CO₂ in the terminal building were obtained. This study explores the fire combustion characteristics of advertising materials in civil airport terminals, providing a basis for fire prevention management in civil airport terminals.

Sustainable lathe machine selection using PROMETHEE

Ovundah Wofuru-Nyenke — 2024-11-01

The manufacturing echelon of supply chains utilizes several machines to convert raw materials into finished products. Therefore, during procurement of these machines, supply chain managers are usually saddled with the problem of obtaining the best machine from a group of similar alternatives, considering multiple criteria simultaneously. The main purpose of this study is to utilize the Preference Ranking Organization Method for Enrichment Evaluation (PROMETHEE) for selecting the best lathe machine from a group of five (5) similar alternatives, namely Lathe 1, Lathe 2, Lathe 3, Lathe 4 and Lathe 5. Four (4) criteria were used in evaluating the machines, namely power, price, complexity, and weight, with preference weights of 0.25, 0.3, 0.25, and 0.2, respectively. The results indicated that Lathe 2 is the best alternative because it has the highest total net flows of 0.325, followed by Lathe 5, which has total net flows of 0.03. Next is Lathe 1, which has a total net flow of -0.0188, followed by Lathe 3, having a total net flow of -0.0975, and finally, Lathe 4, which is the worst ranking alternative, having a total net flow of -0.2388. Therefore, PROMETHEE proved to be a viable multi-criteria decision-making tool for selecting the most suitable lathe machine among the group of alternative machines. This study is significant because it provides a procedure for aiding supply chain managers in selecting the best alternative among a group of similar alternatives using PROMETHEE.

The perspective of energy storage systems advancements and challenges for electric vehicle applications; metric, mechanism, mode, and mitigation framework

Sadegh Mehranfar — 2024-11-06

New advancements in the automobile industry require greater demonstration of the role of energy storage in EVs. More effective energy production and storage require an in-depth look at the recent advancements and challenges of energy storage systems (ESS). This paper presents a holistic and hierarchical framework of metric, mechanism, mode, and mitigation of ESSs recent advancements and challenges, including a) Evaluation metrics for advancements, b) Identification of mechanisms and most important challenges, c) Mode and effects analysis, d) Mitigation through material optimization/system design. A comprehensive review was conducted by comparing different batteries, fuel cells, and supercapacitors’ efficiencies, performance, advantages, and disadvantages.