Results 1 to 10 of about 611,519 (305)

Absorption of heat into a superconductor-normal metal-superconductor junction from a fluctuating environment

, 2012
We study a diffusive superconductor-normal metal-superconductor junction in an environment with intrinsic incoherent fluctuations which couple to the junction through an electromagnetic field. When the temperature of the junction differs from that of the
A. F. Andreev, A. F. Andreev, G. M. Eliashberg, J. Voutilainen, M. Tinkham, P. Virtanen, T. T. Heikkilä   +6 more
core   +1 more source

Exploring the Electro-Thermal Parameters of Reliable Power Modules: Insulated Gate Bipolar Transistor Junction and Case Temperature

Energies, 2018
In the exploration of new energy sources and the search for a path to sustainable development the reliable operation of wind turbines is of great importance to the stability of power systems.
Bo-Ying Liu, Gao-Sheng Wang, Ming-Lang Tseng, Kuo-Jui Wu, Zhi-Gang Li   +4 more
doaj   +1 more source

Thermal Assessment of Laminar Flow Liquid Cooling Blocks for LED Circuit Boards Used in Automotive Headlight Assemblies

Energies, 2020
This research work presents a comparative thermal performance assessment of the laminar flow cooling blocks produced for automotive headlight assembly using a high power Light Emitting Diode (LED) chip.
Muhsin Kilic, Mehmet Aktas, Gokhan Sevilgen   +2 more
doaj   +1 more source

Seebeck coefficient of thermoelectric moleculat junction: First-principles calculations

, 2009
A first-principles approach is presented for the thermoelectricity in molecular junctions formed by a single molecule contact. The study investigates the Seebeck coefficient considering the source-drain electrodes with distinct temperatures and chemical ...
Chen, Yu-Chang, Liu, Yu-Shen
core   +1 more source

Calorimetric readout of a superconducting proximity-effect thermometer

, 2009
A proximity-effect thermometer measures the temperature dependent critical supercurrent in a long superconductor - normal metal - superconductor (SNS) Josephson junction.
A.D. Zaikin, D.R. Schmidt, D.R. Schmidt, D.V. Averin, F. Giazotto, F. Giazotto, F.C. Wellstood, F.W.J. Hekking, H. Courtois, H. Courtois, H. Courtois, J. Bardeen, J. P. Pekola, J. T. Peltonen, M. Meschke, M. Meschke, M.A. Sillanpää, M.L. Roukes, M.M. Leivo, P. Dubos, R.C. Dynes, S. Rajauria, T.T. Heikkilä, W. Belzig   +23 more
core   +4 more sources

Life Prediction of Power Devices of Train Traction Inverter Based on SVPWM Modulation

机车电传动, 2021
Space vector pulse width modulation (SVPWM) can be divided into five-segment SVPWM and seven-segment SVPWM. In order to improve the reliability of the traction inverter, the junction temperature analysis and lifetime prediction of the key components of ...
Junhan YE, Ping YANG, Rongbin ZHOU, Xingjiang SHEN, Jun SHEN, Maosen TANG   +5 more
doaj  

A novel integrated monitoring method for MPPF capacitor and IGBT junction temperature of half‐bridge modules

IET Power Electronics, 2023
Capacitance and Insulated gate bipolar transistor (IGBT) junction temperature are two critical healthy parameters for modular multilevel converters (MMC) sub‐modules (SMs) condition monitoring.
Wuyu Zhang, Lei Qi, Xiangyu Zhang, Bing Ji, Xiang Cui   +4 more
doaj   +1 more source

Time-Dependent Optothermal Performance Analysis of a Flexible RGB-W LED Light Engine

Micromachines
The wide application of light emitting diodes (LEDs) in lighting systems has necessitated the inclusion of spectral tunability by using multi-color LED chips.
Md Shafiqul Islam, Mehmet Arik
doaj   +1 more source

Transient charge and energy flow in the wide-band limit [PDF]

, 2018
The wide-band limit is a commonly used approximation to analyze transport through nanoscale devices. In this work we investigate its applicability to the study of charge and heat transport through molecular break junctions exposed to voltage biases and ...
Covito, F., Eich, F. G., Rubio, A., Sentef, M. A., Tuovinen, R.   +4 more
core   +2 more sources

Modeling and Analysis for Estimation of Junction Temperature Under Various Operating Conditions and Optimization of Pin-Fin Heat Sink for Automotive IGBT Modules

Applied Sciences
New energy vehicles (NEVs) rely heavily on Insulated-Gate Bipolar Transistors (IGBTs) to perform frequent battery voltage conversions for operations such as acceleration, deceleration, and hill climbing.
Chuncen Wu, Feng Wang, Yifan Song
doaj   +1 more source