In this paper, a method to improve the performance of PEMFCs using porous material as a flow channel baffle is proposed.The results lycogel show that PEMFCs with four porous baffles flow channels have better performance at high current density compared with the traditional flow channel.The structural parameters of the flow channel explored in this
This paper proposes a three-dimensional lever-type inertial amplification metamaterial for the mitigation of low-frequency vibration.This metamaterial was developed as a small, stiff, and single-phase structure that can inhibit the transmission of vibration in a certain frequency range below 100 Hz.An analytical model was developed to derive analyt
Quantum walks in dynamically-disordered networks have become an invaluable tool for understanding the physics of open quantum systems.Although much work has been carried out considering networks affected by vivobook x515 diagonal disorder, it is of fundamental importance to study the effects of fluctuating couplings.This is particularly relevant in
Biological aging is the strongest factor associated with the clinical phenotype of multiple sclerosis (MS).Relapsing-remitting MS ben nye sienna powder typically presents in the third or fourth decade, whereas the mean age of presentation of progressive MS (PMS) is 45 years old.Here, we show that experimental autoimmune encephalomyelitis (EAE), ind