Results 31 to 40 of about 557,238 (300)
Study on Calculation Method of Transient Temperature of IGBT in Metro Vehicles
机车电传动, 2021 The physical structure of IGBT module package was introduced, and the main mechanism of chip failure caused by heat shock was analyzed. The main transfer path of chip heat loss was analyzed, the transient heat-transfer model of each link of heat transfer
Wenjie ZENG +5 more
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Thickness Study of Ga2O3 Barrier Layer in p-Si/n-MgZnO:Er/Ga2O3/ZnO:In Diode
Crystals, 2023 The p-Si/n-MgZnO:Er/Ga2O3/ZnO:In diodes with different Ga2O3 thicknesses were fabricated through spray pyrolysis deposition at 450 °C with aqueous solutions containing magnesium nitrate, zinc acetate, erbium acetate, gallium nitrate, and indium nitrate ...
Shih-Wei Ying +4 more
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Spin-current diode with a ferromagnetic semiconductor
, 2015 Diode is a key device in electronics: the charge current can flow through the device under a forward bias, while almost no current flows under a reverse bias.
Sun, Qing-Feng, Xie, X. C.
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Luminance and chromaticity characteristics of different phosphor types in laser lighting
JPhys PhotonicsLaser lighting is emerging as a viable replacement for other light sources in applications requiring high luminance not achievable with LEDs. Phosphor materials for laser lighting are often optimized in terms of luminous efficiency and/or colorimetric ...
Ole Bjarlin Jensen +4 more
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Recent research progress of SiC superjunction devices
机车电传动, 2023 Because of its excellent physical and chemical properties, silicon carbide (SiC) is suitable for manufacturing semiconductor devices working under high temperature and high power.
ZHANG Jinping +4 more
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Thermal compensator for closed-cycle helium refrigerator [PDF]
, 1979 The wave length of an infrared, semiconductor laser diode having an output frequency that is dependent on the diode temperature is maintained substantially constant by maintaining the diode temperature constant.
Hillman, J. J., Jennings, D. E.
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Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens
FEBS Open Bio, EarlyView.Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee +3 more
wiley +1 more source
Engineering Proceedings, 2023 Energy harvesters provide excellent solutions for the power supply problem of wireless sensor nodes (WSNs), and energy harvesters with a wider bandwidth will clearly better serve WSNs and assist in the construction of Industry 4.0.
Rui Zhong +3 more
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao +6 more
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Spektra: Jurnal Fisika dan Aplikasinya, 2017 Abstrak Penelitian ini bertujuan untuk memanfaatkan probabilitas distribusi Gaussian untuk membantu menentukan kualitas rangkaian penyearah gelombang penuh. Sebagai sampel digunakan dioda IN4002 dan IN4007 yang dihubungkan secara seri dengan tahanan 1.
Haris Rosdianto, Moh. Toifur
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