Results 21 to 30 of about 27,208 (258)

Status and perspectives of key materials for PEM electrolyzer

open access: yesNano Research Energy, 2022
Proton exchange membrane water electrolyzer (PEMWE) represents a promising technology for the sustainable production of hydrogen, which is capable of efficiently coupling to intermittent electricity from renewable energy sources (e.g., solar and wind ...
Kexin Zhang   +10 more
doaj   +1 more source

SiC Planar MOSFETs With Built-In Reverse MOS-Channel Diode for Enhanced Performance

open access: yesIEEE Journal of the Electron Devices Society, 2020
In this paper, the SiC planar MOSFET with built-in reverse MOS-channel diode (SiC MCDMOSFET) is investigated utilizing TCAD simulation tools. When the device is working as a freewheeling diode, the operation of the parasitic body diode is suppressed ...
Xintian Zhou   +7 more
doaj   +1 more source

Arginyltransferase (Ate1) regulates the RGS7 protein level and the sensitivity of light-evoked ON-bipolar responses

open access: yesScientific Reports, 2021
Regulator of G-protein signaling 7 (RGS7) is predominately present in the nervous system and is essential for neuronal signaling involving G-proteins. Prior studies in cultured cells showed that RGS7 is regulated via proteasomal degradation, however no ...
Marie E. Fina   +6 more
doaj   +1 more source

A Review on the Long-Term Performance of Proton Exchange Membrane Fuel Cells: From Degradation Modeling to the Effects of Bipolar Plates, Sealings, and Contaminants

open access: yesEnergies, 2022
Proton-exchange membrane fuel cells (PEMFCs) are regarded as promising alternatives to internal combustion engines (ICEs) to reduce pollution. Recent research on PEMFCs focuses on achieving higher power densities, reducing the refueling time, mitigating ...
Hossein Pourrahmani   +6 more
doaj   +1 more source

Nucleation sites of expanded stacking faults detected by in operando x-ray topography analysis to design epitaxial layers for bipolar-degradation-free SiC MOSFETs

open access: yesAIP Advances, 2022
We investigated the nucleation sites of expanded single Shockley-type stacking faults (1SSFs) in a silicon carbide (SiC) metal–oxide–semiconductor field effect transistor (MOSFET) and demonstrated epitaxial layers designed for bipolar-degradation-free ...
Kumiko Konishi   +7 more
doaj   +1 more source

Potential regulation of bipolar redox-active molecules with fused conjugation for high-voltage symmetric organic redox flow batteries

open access: yesElectrochemistry Communications, 2023
Bipolar redox-active organic molecules (ROMs) are emerging as promising active materials as both anolyte and catholyte for symmetric organic redox flow batteries (ORFBs) which moderating the detrimental electrolyte crossover.
Ru Wang   +8 more
doaj   +1 more source

Radiation Degradation of Bipolar Transistor Current Gain

open access: yesActa Physica Polonica A, 2017
Spatial distribution of nonequilibrium minority charge carriers in bipolar transistors before and during the radiation exposure is described. Radiation-induced changes in the input and output characteristics and the current gain under the 60Co 1.2 MeV γ-rays were calculated.
Miskiewicz, S. A.   +4 more
openaire   +3 more sources

Analysis of the Influence of Component Degradation on Different Degradation Indexes of PEMFC

open access: yesEnergies, 2023
To study the effect of component degradation on different degradation indexes of the proton exchange membrane fuel cell (PEMFC), a novel model of the PEMFC based on component properties was established.
Lei Fan   +4 more
doaj   +1 more source

Corrosion and Materials Degradation in Electrochemical Energy Storage and Conversion Devices

open access: yesChemElectroChem, 2023
Research and development on electrochemical energy storage and conversion (EESC) devices, viz. fuel cells, supercapacitors and batteries, are highly significant in realizing carbon neutrality and a sustainable energy economy.
Dr. Viswanathan S. Saji
doaj   +1 more source

Degradation of Power Bipolar Operational Amplifiers in a Mixed Neutron and Gamma Environment [PDF]

open access: yesIEEE Transactions on Nuclear Science, 2007
Power operational amplifiers were irradiated in a mixed neutron and gamma radiation environment. These experiments showed that the degradation of the power operational amplifiers shares a great deal of characteristics with that of the low signal devices (e.g., shift of the input offset voltage, increase of the input bias currents, and degradation of ...
Franco Peláez, Francisco Javier   +2 more
openaire   +3 more sources

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