Abstract Background Conventional airship mathematical modeling usually involves six coupled degrees of freedom and two inputs, namely tail thrust. The current study focuses on aerodynamic modeling. model is developed in 3D-space based plane semi-empirical a symmetric airship. depends the main geometrical parameters introduces an optimal shape design objective function established to reduce drag...

3D hand tracking is an interesting problem with high complexity due to the high dimensionality of the human hand and its frequent and often severe self occlusions. Most of the curent methods, track a human hand under the assumption that its parameters (e.g., finger lengths, palm dimensions, e.t.c.) are already known. This assumption limits the applicability of tracking methods. Recently, a few ...

Abstract When a distributional model is chosen, the analytic relation between its shape parameters and values taken by some kurtosis indexes, especially if they are unconventional, rarely known. In addition, different indexes may provide contrasting evidence about level of global kurtosis, when varied. That happens because just few act “plainly” on namely so as to produce consistent modificatio...