Results 41 to 50 of about 98,280 (304)
World Electric Vehicle JournalAccurate extraction of polarization resistance is crucial in the application of proton exchange membrane fuel cells. It is generally assumed that the steady-state resistance obtained from the polarization curve model is equivalent to the AC impedance ...
Yuzheng Mao +4 more
doaj +1 more source
Gong-kuang zidonghua, 2014 Application principle of polarization spectrum method based on recovery voltage method was introduced which was used in state detection of transformer oil-paper insulation, and a viewpoint was pointed out that main time constant of polarization spectrum ...
TAO Fengyuan +3 more
doaj +1 more source
A physically-based analytical polarization curve of a PEM fuel cell [PDF]
, 2014 An analytical polarization curve of the cathode side of a PEM fuel cell is derived. The curve results from approximate solution of the system of equations for the cathode catalyst layer (CCL) performance and it takes into account the oxygen and proton ...
Kulikovsky, Andrei
core +1 more source
FEBS Letters, EarlyView.Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai +4 more
wiley +1 more source
The effect of non-uniform aging of a PEM fuel cell on the polarization curve: A modeling study [PDF]
, 2014 Using the variational technique we show that in PEM fuel cells, an exponential shape of the local current density along the oxygen channel provides the best cell performance.
Kulikovsky, Andrei
core +1 more source
A New Fuel Cell Degradation Model Indexed by Proton Exchange Membrane Thickness Derived from Polarization Curve [PDF]
, 2023 This paper has developed a thickness-polarization degradation model based on the experimental data and polarization curves to model the degradation process of the proton exchange membrane fuel cell (PEMFC) refereeing proton exchange membrane (PEM ...
Luo, Lei +3 more
core +1 more source
The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers
Molecular Oncology, EarlyView.The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce +11 more
wiley +1 more source
Molecular Oncology, EarlyView.Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang +12 more
wiley +1 more source
Journal of Aeronautical Materials, 2023 In order to improve the corrosion resistance of AZ91D magnesium alloy, micro-arc oxidation coatings with different ZrO2 nanoparticle contents were prepared by unipolar pulse power supply, and the effect of nano ZrO2 particles on the corrosion resistance ...
MENG Lingfei +3 more
doaj +1 more source
Molecular Oncology, EarlyView.The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka +9 more
wiley +1 more source