The air-cooled proton exchange membrane fuel cell is widely used in unmanned aerial vehicle since its small size and high efficiency.The bipolar plate structure is an important factor affecting the performance of fuel cells.This article conducts experimental research on the impact of different channel structures on performance based on the annular
The 2010 western Russian heatwave was characterized by historically high surface temperatures that led to devastating impacts on the environment, economy, and society.Recent studies have attributed a quasi-stationary upper level ridge, sensible heat advection, and tommy todd ointment land-atmosphere temperature coupling as the primary components fo
Compared with the current gesture recognition system based on radio frequency identification technology, the single-tag non-contact gesture recognition system based on convolutional neural network proposed in this paper can maximize user experience.Without the need for the user to carry any equipment, a single tag and single antenna are used to ach
Observational studies teal horse blanket are based on systematic observation, understood as an organized recording and quantification of behavior in its natural context.Applied to the specific area of sports, observational studies present advantages when comparing studies based on other designs, such as the flexibility for adapting to different con