Existing ship trajectory clustering methods often overlook the impact of navigation behaviors (e.g., heading and speed variations) on clustering performance. To address this limitation, a novel ship trajectory clustering method that explicitly incorporates navigation behavior sequence is proposed. Firstly, ship trajectories are preprocessed, and key motion parameters, including the ship Rate Of Turn (ROT) and acceleration at e...

A new basidiomycete, Clavulina mollis , is described based on morphological features and DNA sequence analyses. This fungus, collected in Yunnan Province, China, is characterized by its coralloid basidiomata growing in caespitose clusters, branching two to five times, polychotomous toward the apices and irregularly dichotomous to polychotomous at the base; a monomitic hyphal system with clamped generative hyphae; pale yellow,...