Results 11 to 20 of about 135,286 (291)

Optimization of air mass flow in a PEM fuel cell [PDF]

open access: yesEPJ Web of Conferences, 2022
In our work, we focused on measuring the performance characteristics of a test hydrogen fuel cell with an open cathode. The aim of the work was to verify the effect of the mass flow through the fuel cell on the power output as a function of the current ...
Novotný Jan   +4 more
doaj   +1 more source

Automatic detection method of abnormal vibration of engineering electric drive construction machinery

open access: yesElectronic Research Archive, 2023
Aiming at the problem that the extraction effect of abnormal vibration characteristics of current engineering electric drive construction machinery is poor, an automatic detection method of abnormal vibration of engineering electric drive construction ...
Jian Yuan , Hao Liu, Yang Zhang
doaj   +1 more source

LEONARDO DA VINCI MACHINERY: LEARNING EXPERIENCE IN MECHANICAL ENGINEERING

open access: closedRevista de Ensino de Engenharia, 2018
Franco da Silveira   +4 more
openalex   +2 more sources

Condition and prospects of development of agricultural mechanical engineering [PDF]

open access: yesЭкономика региона, 2011
In this paper, an estimation of condition and level of development of agricultural mechanical engineering is given; also an expert estimation of scales of the Russian market of agricultural machinery is given. The factors negatively influencing formation
Vsevolod Petrovich Babushkin   +1 more
doaj   +1 more source

Programmable microfluidics for dynamic multiband camouflage

open access: yesMicrosystems & Nanoengineering, 2023
Achieving multiband camouflage covering both visible and infrared regions is challenging due to the broad bandwidth and differentiated regulation demand in diverse regions.
Chunzao Feng   +6 more
doaj   +1 more source

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