In this paper, the aerodynamic performance Pennants of a Hex-rotor unmanned aerial vehicle (UAV) with different rotational speeds (1500−2300 RPM) considering the horizontal airflow conditions is analyzed by both simulations and experiments.A low-speed wind tunnel experiments platform is applied to measure the thrust, torque, and power consump
The study aimed to find out how to develop an optimal and effective motivation model considering the preferences and requests of young researchers, in view of the fact that scientific specific of building and organising an internal work system, its scientific potential and resources, which provides a valuable fundamental insight.The task of the stu
To evaluate the efficiency of catalyst packing and to characterize the liquid phase flow dynamics in a heavy water distillation column, a series of residence time distribution foot tube foam (RTD) measurements were carried out using radiotracer.For a RTD measurement, about 1 mCi (37 MBq) of 82Br as ammonium bromide was injected as an impulse and it
The phytoplankton size class (PSC) plays an important role in biogeochemical processes in the ocean.In this study, a regional model of PSCs is proposed to retrieve vertical PSCs from the total minus water absorption coefficient (at-w(λ)) and Chlorophyll a concentration (Chla).The PSC model is developed by first reconstructing phytoplankton abs
Mature fetiform teratoma, or homunculus, is a term coined for a rare variant of teratoma with a prevalence of 0.01% of teratomas.There have been very few cases reported in the world, and its thoracic presentation is extremely unusual.We present the case of a 31-year-old female patient with a history of progressive chest pain in the left Ski de fond