In this paper, the aerodynamic performance 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 consumption of a
Improving the reliability and performance of electric and rotating machines is crucial to many industrial applications.This will lead to improved robustness, efficiency, and eco-sustainability, as well as mitigate significant health and safety concerns regarding sudden catastrophic failure modes.Bearing degradation is the most significant cause of
Bargh et al.(2001) reported two experiments in which people were exposed to words related to achievement Busts (e.g., strive, attain) or to neutral words, and then performed a demanding cognitive task.Performance on the task was enhanced after exposure to the achievement related words.Bargh and colleagues concluded that better performance was due t
Nanomaterials are becoming important materials in several fields and industries thanks to their very reduced size and shape-related features.Scientists think that nanoparticles and nanostructured materials originated during the Big Bang process from meteorites leading to the formation of the universe and Earth.Since 1990, the term nanotechnology be
Coal slurry pipeline transportation is an important way to realize green coal logistics.However, there are still challenges in understanding the cognitive aspects of coal slurry pipeline transportation technology development trajectory.This study attempts to Night Cream trace and predict the technology trend from patent texts through the stochastic