Results 41 to 50 of about 27,330 (257)

Corrosion behavior of Ti–Pt-coated stainless steel for bipolar plates in polymer electrolyte membranes under water electrolysis conditions

open access: yesHeliyon
In this study, the corrosion behavior and degradation mechanism of Ti–Pt-coated stainless steel bipolar plates were investigated through electrochemical tests and surface analysis in a polymer electrolyte membrane water electrolysis (PEMWE) operating ...
Sin-Jae Kang   +7 more
doaj   +1 more source

Valproic acid causes proteasomal degradation of DICER and influences miRNA expression. [PDF]

open access: yesPLoS ONE, 2013
Valproic acid (VPA) is a commonly used drug to treat epilepsy and bipolar disorders. Known properties of VPA are inhibitions of histone deacetylases and activation of extracellular signal regulated kinases (ERK), which cannot fully explain VPA's clinical
Zhaiyi Zhang   +7 more
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

Performance Degradation Based Lifetime Evaluation of Power Electronic Devices

open access: yesZhongguo dianli, 2020
Current lifetime evaluation methods are often ineffective for power electronic devices which have high reliability, long life, and multi-fault mode competition.
Guangze PAN   +4 more
doaj   +1 more source

Role of the Recombination Zone in Organic Light‐Emitting Devices

open access: yesAdvanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Suppression of stacking fault expansion in a 4H-SiC epitaxial layer by proton irradiation

open access: yesScientific Reports, 2022
SiC bipolar degradation, which is caused by stacking fault expansion from basal plane dislocations in a SiC epitaxial layer or near the interface between the epitaxial layer and the substrate, is one of the critical problems inhibiting widespread usage ...
Shunta Harada   +3 more
doaj   +1 more source

Single‐Chromophore Homojunction Organic Solar Cells: A Path to Simplicity and Efficiency

open access: yesAdvanced Materials, EarlyView.
This perspective discusses how the intrinsic optoelectronic properties of organic semiconductors, their molecular packing in the solid‐state, and internal energetic gradients within a device can enable free‐charge carrier generation in homojunction organic solar cells.
Shaun McAnally   +2 more
wiley   +1 more source

GA-LSTM-Based Degradation Prediction for IGBTs in Power Electronic Systems

open access: yesEnergies
The reliability and lifetime of insulated gate bipolar transistors (IGBTs) are critical to ensuring the stability and safety of power electronic systems.
Yunfeng Qiu, Zehong Li, Shan Tian
doaj   +1 more source

Non-Contact Degradation Evaluation for IGBT Modules Using Eddy Current Pulsed Thermography Approach

open access: yesEnergies, 2020
In this paper, a non-contact degradation evaluation method for insulated gate bipolar transistor (IGBT) modules is proposed based on eddy current pulsed thermography approach.
Xingliang Liu   +5 more
doaj   +1 more source

Electrical characterization of commercial NPN bipolar junction transistors under neutron and gamma irradiation [PDF]

open access: yesNuclear Technology and Radiation Protection, 2014
Electronics components such as bipolar junction transistors, diodes, etc. which are used in deep space mission are required to be tolerant to extensive exposure to energetic neutrons and ionizing radiation.
OO Myo Min   +6 more
doaj   +1 more source

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