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
Atherosclerosis is the main cause of coronary heart disease and stroke, the two major causes of death in developed society.There is emerging evidence of excess risk of cardiovascular disease at low radiation doses in various occupationally exposed groups receiving small daily radiation doses.Assuming that they are causal, the mechanisms for the gel
Discharging sinus in upper eyelid is one of rare manifestations of tuberculosis.The present report describes the youngest case of tubercular dacryoadenitis in an otherwise healthy child.A 4 year old male patient presented with discharging sinus in upper eyelid that developed after a spontaneously burst abscess in upper eyelid.Pus culture was steril
Climate factors can impact the multifunctionality of steppe ecosystem by altering plant diversity.The pivotal role of diversity in mediating these effects is of paramount importance.Given that various facets of plant diversity exhibit diverse responses to climate change and impart distinct impacts on steppe ecosystem multifunctionality, the elucida
Electric power systems have experienced large increases in the number of intelligent, connected and controllable devices being deployed, leading to a high degree of distributed intelligence at the grid-edge.These devices, both utility-owned and consumer-owned, include renewable generation, energy storage, remote switches, voltage regulators, and sm