Producción Científica

Hydrogen is considered a promising solution for global decarbonisation as an alternative to fossil fuels. However, it can interact with and brittle most metallic materials and is highly flammable. These properties call for a systematic investigation of physical and chemical hazards and for the definition of a comprehensive risk management and monitoring framework, including proper maintenance planning. This study aims at establishing a hydrogen monitoring scheme and it provides a descriptive, bibliometric, and interpretative review of the current state-of-the-art of suitable techniques to ensure the safe handling of hydrogen systems. The descriptive analysis outlines the technologies available to supervise the hydrogen-material interactions and detect hydrogen leaks and flames. The bibliometric analysis shows quantitative data to identify the most relevant research groups. The interpretative study discusses the findings and examines the possibility of combining the identified techniques with maintenance programs to prevent catastrophic events.

Under growing recognition of the need to restore marine ecosystems and promote the sustainable use of ocean resources, this research delves into an analysis of studies on artificial reefs in the marine environment spanning from 1996 to 2024 to explore how they have evolved in supporting biodiversity growth and fishery management while also promoting ecosystem sustainability over time. Using tools like CiteSpace 6.3. R1 and VOSviewer 1.6.18, a total of 586 research publications were examined to pinpoint authors, current trends in research, and emerging focal points. This study highlights the roles played by countries such as the United States, China, and Australia, as well as esteemed institutions, like NOAA and the Chinese Academy of Fisheries Sciences leading the field. In this field of study, there are topics like restoring the environment to its natural state and making fisheries more sustainable by creating habitats with diverse structures and elements; this shows how artificial reef research involves different areas of expertise working together for a common goal. The findings suggest a trend towards using tools such as ecofriendly materials and 3D printing to improve the design and ecological functionality of reefs. However, some challenges still exist, such as conducting assessments on the long-term effects on the environment and finding a balance between promoting biodiversity and meeting the needs of people in terms of economic aspects. This research highlights the importance of countries working together and adapting their strategies to ensure that artificial reefs play a role in protecting marine life and using ocean resources in a sustainable way. By charting out the existing knowledge landscape, this study lays the groundwork for research endeavors focused on tackling these obstacles and propelling the field forward.

Recreational activities are essential in the field of tourism as they improve the overall travel experience and offer chances for relaxation, adventure, cultural immersion, and personal development. However, the activities certainly generate an impact. This review-based study identified and synthesized 21 impact-based research papers in indexed journals from 2004 to 2022. The selected papers underwent four steps of an evidence-based systematic review. Content analysis was used to categorize impacts by theme. Additionally, bibliometric analysis was used to identify research trends. This study found that recreational activities affect the biotic environment of ecology by introducing invasive species, changing behavior and habitat, and reducing population density. The abiotic environment is also affected by soil compaction, degradation, littering, and water pollution. It was also found that management interventions are highly recommended for mitigating negative impacts. The major contribution of this study is that researchers, policymakers, and practitioners can gain valuable insights from the results as it offers a thorough synthesis of the impact of recreational activities, which may be put into immediate action to mitigate negative impacts.

Climate change effects have a significant global negative impact, prompting global leaders to promote clean energy use to reduce carbon emissions. Electric vehicles powered by lithium-ion batteries are crucial to achieving this goal. Lithium is an essential material for the efficient operation of electric batteries, so in recent years, its demand has increased, and it is considered a strategic mineral. This paper aims to describe and analyze the scientific development of lithium-based clean energy technologies and reveal future areas of scientific production priority. This research is conducted through a bibliometric analysis in the Scopus database from 1929 to April 2024. Using the software Bibliometrix 4.1 and Biblioshiny the exported literature data are analyzed. The number of papers on lithium topics has significantly increased since 2018, with China leading in publications and collaborating with many countries. The trending topics are geological prospection, lithium ore characterization, chemical engineering, and lithium energy technologies. Lithium research is a growing field, but its development is uneven. Only a few countries lead in scientific production and lithium energy technologies, and sustainability lithium topics related to Life-Cycle Analysis (LCA) require further attention. Lithium research development is influenced by global economic trends.

Floods have catastrophic effects worldwide, particularly in monsoonal Asia. This systematic review investigates the literature from the past two decades, focusing on the use of remote sensing (RS), Geographic Information Systems (GISs), and technologies for flood disaster management in South Asia, and addresses the urgent need for effective strategies in the face of escalating flood disasters. This study emphasizes the importance of tailored GIS- and RS-based flood disaster studies inspired by diverse research, particularly in India, Pakistan, Bangladesh, Sri Lanka, Nepal, Bhutan, Afghanistan, and the Maldives. Our dataset comprises 94 research articles from Google Scholar, Scopus, and ScienceDirect. The analysis revealed an upward trend after 2014, with a peak in 2023 for publications on flood-related topics, primarily within the scope of RS and GIS, flood-risk monitoring, and flood-risk assessment. Keyword analysis using VOSviewer revealed that out of 6402, the most used keyword was “climate change”, with 360 occurrences. Bibliometric analysis shows that 1104 authors from 52 countries meet the five minimum document requirements. Indian and Pakistani researchers published the most number of papers, whereas Elsevier, Springer, and MDPI were the three largest publishers. Thematic analysis has identified several major research areas, including flood risk assessment, flood monitoring, early flood warning, RS and GIS, hydrological modeling, and urban planning. RS and GIS technologies have been shown to have transformative effects on early detection, accurate mapping, vulnerability assessment, decision support, community engagement, and cross-border collaboration. Future research directions include integrating advanced technologies, fine-tuning spatial resolution, multisensor data fusion, social–environmental integration, climate change adaptation strategies, community-centric early warning systems, policy integration, ethics and privacy protocols, and capacity-building initiatives. This systematic review provides extensive knowledge and offers valuable insights to help researchers, policymakers, practitioners, and communities address the intricate problems of flood management in the dynamic landscapes of South Asia.