Using the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model to obtain backward trajectories and then conduct clustering analysis is a common method analyze potential sources transmission paths of atmospheric particulate pollutants. Taking Qingdao (N36 E120) as an example, global data assimilation system (GDAS 1°) days from 2015 2018 provided by National Centers for Environ...

Collaborative Filtering (CF) has been known as the most successful recommendation technique in which recommendations are made based on past rating records from like-minded users. Significant growth of users and items have negatively affected efficiency CF pose key issues related to computational aspects quality such high dimensionality data sparsity. In this study, a hybrid method was proposed ...

In parallel with the developments in yachting sector, need for qualified yacht masters has increased. Their qualifications are important not only meeting customers’ demands but also ensuring maritime safety. this direction, they play an role sustainability of sector. However, unlike other seafarers, there is a wide variation certification categories and training countries due to lack worldwide ...