Plasmasphere electron temperature profiles and the effects of photoelectron trapping and an equatorial high-altitude heat source

1996 ◽  
Vol 101 (A10) ◽  
pp. 21689-21696 ◽  
Author(s):  
N. Balan ◽  
K.-I. Oyama ◽  
G. J. Bailey ◽  
T. Abe
Keyword(s):  
Heat Source ◽  
Electron Temperature ◽  
High Altitude ◽  
Temperature Profiles

scholarly journals Analysis of hyperbolic Pennes bioheat equation in perfused homogeneous biological tissue subject to the instantaneous moving heat source

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Ali Kabiri ◽  
Mohammad Reza Talaee
Keyword(s):  
Heat Source ◽  
Closed Form ◽  
Method Comparison ◽  
Closed Form Solution ◽  
Form Solution ◽  
Temperature Profiles ◽  
Moving Heat Source ◽  
Bioheat Equation ◽  
Perfusion Rate

AbstractThe one-dimensional hyperbolic Pennes bioheat equation under instantaneous moving heat source is solved analytically based on the Eigenvalue method. Comparison with results of in vivo experiments performed earlier by other authors shows the excellent prediction of the presented closed-form solution. We present three examples for calculating the Arrhenius equation to predict the tissue thermal damage analysis with our solution, i.e., characteristics of skin, liver, and kidney are modeled by using their thermophysical properties. Furthermore, the effects of moving velocity and perfusion rate on temperature profiles and thermal tissue damage are investigated. Results illustrate that the perfusion rate plays the cooling role in the heating source moving path. Also, increasing the moving velocity leads to a decrease in absorbed heat and temperature profiles. The closed-form analytical solution could be applied to verify the numerical heating model and optimize surgery planning parameters.

scholarly journals Electron temperature in nighttime sporadic E layer at mid-latitude

2008 ◽  
Vol 26 (3) ◽  
pp. 533-541 ◽  
Author(s):  
K.-I. Oyama ◽  
T. Abe ◽  
H. Mori ◽  
J. Y. Liu
Keyword(s):  
Heat Source ◽  
Electron Temperature ◽  
Physical Parameter ◽  
Langmuir Probe ◽  
Present Theory ◽  
Height Range ◽  
Neutral Temperature ◽  
Sporadic E Layer ◽  
Sporadic E ◽  
Parameter Values

Abstract. Electron temperature in the sporadic E layer was measured with a glass-sealed Langmuir probe at a mid-latitude station in Japan in the framework of the SEEK (Sporadic E Experiment over Kyushu)-2 campaign which was conducted in August 2002. Important findings are two fold: (1) electron temperature and electron density vary in the opposite sense in the height range of 100–108 km, and electron temperature in the Es layer is lower than that of ambient plasma, (2) electron temperature in these height ranges is higher than the possible range of neutral temperature. These findings strongly suggest that the heat source that elevates electron temperature much higher than possible neutral temperature exists at around 100 km, and/or that the physical parameter values, which are used in the present theory to calculate electron temperature, are not proper.

scholarly journals Thermal Regime of Ice Covered Swedish Lakes

1996 ◽  
Vol 27 (1-2) ◽  
pp. 39-56 ◽  
Author(s):  
Lars Bengtsson ◽  
Thorbjörn Svensson
Keyword(s):  
Heat Flux ◽  
Solar Radiation ◽  
Heat Source ◽  
Lake Water ◽  
Heat Budget ◽  
Heat Content ◽  
Heat Fluxes ◽  
Late Winter ◽  
Temperature Profiles ◽  
Early Winter

Temperature conditions and heat fluxes in ice covered lakes are discussed analyzing measurements in eight Swedish lakes. Heat fluxes from sediments and heat fluxes from water to ice are determined from temperature profiles. The contribution of solar radiation is estimated from heat-budget calculations. It is found that the heat content of most of the lakes changes very little when they are ice covered, but that the lake-water temperature slightly increases. All heat fluxes are small. The heat flux from the sediments is the highest flux in early winter, but is later in the winter balanced by the heat loss from the water to the underside of the ice. Solar radiation is an important heat source in late winter, when the snow cover is thin.

scholarly journals Reduced model prediction of electron temperature profiles in microtearing-dominated National Spherical Torus eXperiment plasmas

2014 ◽  
Vol 21 (8) ◽  
pp. 082510 ◽  
Author(s):  
S. M. Kaye ◽  
W. Guttenfelder ◽  
R. E. Bell ◽  
S. P. Gerhardt ◽  
B. P. LeBlanc ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Model Prediction ◽  
Reduced Model ◽  
Temperature Profiles ◽  
Spherical Torus

Marginal-Stability Calculation of Electron Temperature Profiles in Tokamaks

1976 ◽  
Vol 37 (5) ◽  
pp. 286-289 ◽  
Author(s):  
Wallace M. Manheimer ◽  
K. R. Chu ◽  
Edward Ott ◽  
Jay P. Boris
Keyword(s):  
Electron Temperature ◽  
Marginal Stability ◽  
Temperature Profiles ◽  
Stability Calculation
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