Recently, the cruising duration is a vital parameter of fuel-powered unmanned aerial vehicles (UAVs), and it is directly determined by the power characteristics of the aircraft engine in the UAV.In this study, to prolong the flight duration and enhance Portable Speakers the power and efficiency of a UAV, an aircraft engine is analyzed based on the
We investigate the dark matter distribution in the spiral galaxy ESO0140040, employing the most widely used density profiles: the pseudo-isothermal, exponential sphere, Burkert, Navarro-Frenk-White, Moore and Einasto profiles.We infer the 118 model parameters and estimate the total dark matter content from the rotation curve data.For simplicity, we
The IIB matrix model is one Scarf of the candidates for nonperturbative formulation of string theory, and it is believed that the model contains gravitational degrees of freedom in some manner.In some preceding works, it was proposed that the matrix model describes the curved space where the matrices represent differential operators that are define