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Stationary thermal conductivity by absence of internal heat source
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Text format: Tl1-1/(alpha1*r1^2)*(Tl1-Tl2)/((1/(alpha1*r1^2))+1/lambda*(1/r1-1/r2)+1/(alpha2*r2^2))
See example (Maple) >>>>>>>
Text format: Tl2+1/(alpha2*r1^2)*(Tl1-Tl2)/((1/(alpha1*r1^2))+1/lambda*(1/r1-1/r2)+1/(alpha2*r2^2))
Text format: 4*pi*(Tl1-Tl2)/((1/(alpha1*r1^2))+1/lambda*(1/r1-1/r2)+1/(alpha2*r2^2))
See example (Excel) >>>>>>>
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