Hydrogen can be recognized as the most plausible fuel for promoting a green environment.
Worldwide, developed and develo** countries have established their hydrogen research …

Since the outbreak of the COVID-19 pandemic, countries have concentrated on develo**
policies that encourage the creation of more innovative products and services in response to …

The COVID-19 pandemic substantially influenced the world economy, affecting
entrepreneurs and SMEs alike. This paper critically examines the relationship between …

When the number of books provided by library is relatively large, it becomes difficult for user
to select appropriate book from a lot of candidate books. In this case, this paper designs a …

With the increasing abundance of information resources and the development of deep
learning techniques, recommender systems (RSs) based on deep learning have gradually …

Twitter has been one of the most popular social network sites for academic research; the
main objective of this study was to update the current knowledge boundary surrounding …

This study examines the origins, significant subjects, scientific advances, and future
advancements in sports tourism research. We run a bibliometric analysis in R with the …

The IEEE Access journal started in 2013, and in a short period, it has attained recognition for
being a preferred multidisciplinary journal, with characteristics of rapid and continuous …

Advances in information technology have steered several nations' aspirations toward a
health-oriented society. Conspicuously, a new concept known as smart healthcare (SHC) …

Research and development frequently proceed based on words and phrases. New ideas
are introduced to outline developments often with definitions. The word smart education was …