نتایج جستجو برای: bipolar plates

تعداد نتایج: 73813  

2008
Klaus W. Hodapp Nicola Schneider

S106 is a bipolar nebula illuminated and excited by a central star called S106 IR. Depending on its distance (literature values range from 500 pc to 5.7 kpc) this star is of late O to early B spectral type. There is evidence that S106 is physically associated with the molecular cloud complex of Cygnus X. The bipolar nebula is the dominant feature in an embedded cluster of young stars forming in...

Journal: :Journal of The Electrochemical Society 2022

Three bipolar plates (BPP) comprised of a composite polypropylene or polyvinylidene fluoride polymer and varying average graphite particle size were studied for application in vanadium redox flow battery (VRFB). The BPPs electrochemically aged via 3000 cyclic voltammetry curves 1.8 M VOSO 4 + 2.0 H 2 SO electrolyte. After every 500th cycle the aging progression was determined by performing on 0...

Micro-stamping process is one of the most cost-effective methods to manufacture metallic bipolar plates (BPPs). This research investigates the forming of titanium thin sheet as a potential candidate for BPPs in proton exchange membrane fuel cell (PEMFC). In this regard, the process was first simulated using finite element (FE) code Abaqus. Afterward, experimental tests were implemented and the ...

Journal: :iranian journal of psychiatry 0
seyed ali ahmadi abhari department of psychiatry and psychiatry research center, tehran university of medical sciences. majid sadeghi seyed mehdi samimi ardestani yousef semnani gholamreza mirsepassi seyed saeed sadr

bipolar spectrum disorders may often go undiagnosed or unrecognized. the aim of this study was to determine the proportion of bipolar disorder symptoms in iranian patients with a major depressive episode.313 patients with a current dsm-iv-tr (diagnostic and statistical manual of mental disorders 4th ed. text rev.) diagnosed with a major depressive episode entered this cross-sectional study. thi...

Journal: :ChemElectroChem 2023

Research and development on electrochemical energy storage conversion (EESC) devices, viz. fuel cells, supercapacitors batteries, are highly significant in realizing carbon neutrality a sustainable economy. Component corrosion/degradation remains major threat to EESC device‘s long-term durability. Here, we provide comprehensive account of the corrosion degradation issues. Discussions mainly pol...

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