Results 51 to 60 of about 87,187 (276)

A Van der Waals Optoelectronic Synapse with Tunable Positive and Negative Post‐Synaptic Current for Highly Accurate Spiking Neural Networks

Advanced Functional Materials, EarlyView.
A van der Waals optoelectronic synaptic device based on a ReS2/WSe2 heterostructure and oxygen‐treated h‐BN is presented, which enables both positive and negative PSCs through photocarrier polarity reversal. Bidirectional plasticity arises from gate‐tunable band bending and charge trapping‐induced quasi‐doping.
Hyejin Yoon, Soeun Park, Yeong Kwon Kim, Juhwan Baek, Ki Han Kim, Seongil Yun, Hyeonchang Son, Jeongeun Choi, Byung Chul Jang, Dong‐Ho Kang   +9 more
wiley   +1 more source

Degradation of Junction Parameters of an Electrically Stressed NPN Bipolar Transistor

Active and Passive Electronic Components, 2001
The effect of an electrical ageing on npn bipolar transistor has been studied. The current gain decreases substantially and the electrical properties are discussed.
N. Toufik, F. Pélanchon, P. Mialhe
doaj   +1 more source

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

Energies, 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, Guiyun Tian, Yu Chen, Haoze Luo, Jian Zhang, Wuhua Li   +5 more
doaj   +1 more source

Quantitative predictions on auxin-induced polar distribution of PIN proteins during vein formation in leaves [PDF]

, 2010
The dynamic patterning of the plant hormone auxin and its efflux facilitator the PIN protein are the key regulator for the spatial and temporal organization of plant development.
A. Delbarre, A. Marchant, A. Newell, A.G. Rolland-Lagan, A.S. Usenko, C.L. Howe, C.L. Wenzel, D. Koenig, D. Reinhardt, E. Benková, E. Frey, E. Scarpella, E. Wangermann, E.M. Bayer, E.M. Kramer, E.M. Kramer, F. Feugier, F. Rapparini, F.A.F.C. Went, F.G. Feugier, G.J. Mitchison, G.J. Mitchison, G.J. Mitchison, H. Jönsson, J. Friml, J. Friml, J. Petrasek, J. Petrášek, J.A. Raven, K. Alim, K. Ljung, K. Okada, L. Gälweiler, L.E. Sieburth, M. Ibañes, M. Sauer, M.G. Sawchuk, M.H.M. Goldsmith, O. Hamant, P. Dhonukshe, P. Ortoleva, P. Sahlin, P.A. Lawrence, P.H. Rubery, R. Benjamins, R. Swarup, R.G. Casten, R.M.H. Merks, R.S. Smith, R.S. Smith, S. Pollmann, S. Stoma, T. Berleth, T. Paciorek, T. Sachs   +54 more
core   +3 more sources

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

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

Heliyon
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, Geon-Il Kim, Seung-Hyun Kim, Ji-Han Lee, Jeong-Soo Kim, Seong-Un Im, Yeon-Soo Kim, Jung-Gu Kim   +7 more
doaj   +1 more source

Interface degradation and field screening mechanism behind bipolar-cycling fatigue in ferroelectric capacitors

APL Materials, 2021
Polarization fatigue, i.e., the loss of polarization of ferroelectric capacitors upon field cycling, has been widely discussed as an interface related effect. However, mechanism(s) behind the development of fatigue have not been fully identified.
M. T. Do, N. Gauquelin, M. D. Nguyen, F. Blom, J. Verbeeck, G. Koster, E. P. Houwman, G. Rijnders   +7 more
doaj   +1 more source

Biomimetic flow fields for proton exchange membrane fuel cells: A review of design trends [PDF]

, 2020
Bipolar Plate design is one of the most active research fields in Polymer Electrolyte Membrane Fuel Cells (PEMFCs) development. Bipolar Plates are key components for ensuring an appropriate water management within the cell, preventing flooding and ...
Arredondo, C. H., Iranzo Paricio, Jose Alfredo, Kannan, A. M., Rosa Iglesias, Manuel Felipe   +3 more
core  

Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation

Advanced Functional Materials, EarlyView.
A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah, Taehoon Kwon, Hana Kim, Shin‐Ki Hong, Seung Won Lee, Se Hee Lee, Ik‐Su Kwon, Masahiro Kozako, Minhee Kim, Seunggun Yu   +9 more
wiley   +1 more source

Adaptive Residual Useful Life Prediction for the Insulated-Gate Bipolar Transistors with Pulse-Width Modulation Based on Multiple Modes and Transfer Learning

Fractal and Fractional, 2023
Currently, residual useful life (RUL) prediction models for insulated-gate bipolar transistors (IGBT) do not focus on the multi-modal characteristics caused by the pulse-width modulation (PWM).
Wujin Deng, Yan Gao, Wanqing Song, Enrico Zio, Gaojian Li, Jin Liu, Aleksey Kudreyko   +6 more
doaj   +1 more source