Study of bipolar transistor matching at high current level with various test configurations leading to a new model approach

2005 ◽  
Author(s):  
S. Bordez ◽  
S. Danaie ◽  
R. Difrenza ◽  
J. Vildeuil ◽  
G. Morin
Keyword(s):  
Bipolar Transistor ◽  
Current Level ◽  
High Current ◽  
New Model ◽  
Model Approach

scholarly journals A New Model Approach for Convective Wall Heat Losses in DQMOM-IEM Simulations for Turbulent Reactive Flows

2018 ◽  
Vol 141 (5) ◽  
Author(s):  
Yeshaswini Emmi ◽  
Andreas Fiolitakis ◽  
Manfred Aigner ◽  
Franklin Genin ◽  
Khawar Syed
Keyword(s):  
Experimental Data ◽  
Heat Losses ◽  
Reacting Flow ◽  
Jet Flame ◽  
New Model ◽  
Turbulent Reactive Flows ◽  
Novel Method ◽  
The One ◽  
The Impact ◽  
Model Approach

A new model approach is presented in this work for including convective wall heat losses in the direct quadrature method of moments (DQMoM) approach, which is used here to solve the transport equation of the one-point, one-time joint thermochemical probability density function (PDF). This is of particular interest in the context of designing industrial combustors, where wall heat losses play a crucial role. In the present work, the novel method is derived for the first time and validated against experimental data for the thermal entrance region of a pipe. The impact of varying model-specific boundary conditions is analyzed. It is then used to simulate the turbulent reacting flow of a confined methane jet flame. The simulations are carried out using the DLR in-house computational fluid dynamics code THETA. It is found that the DQMoM approach presented here agrees well with the experimental data and ratifies the use of the new convective wall heat losses model.

Evaluating gene × psychological risk factor effects in the pathogenesis of anxiety: A new model approach.

2000 ◽  
Vol 109 (2) ◽  
pp. 308-320 ◽  
Author(s):  
Norman B. Schmidt ◽  
Julie Storey ◽  
Benjamin D. Greenberg ◽  
Helen T. Santiago ◽  
Qian Li ◽  
...  
Keyword(s):  
Risk Factor ◽  
New Model ◽  
Psychological Risk ◽  
Model Approach
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