... γ1−bNβ2(17)R+represents the ratio of the thermal resistance of the branched structure of single-walled carbon nanotubes,Rt, to that of the equivalent Rs,undertheconstraintoftot al volume , and which ... micro-spaces. The objective of the present work is to propose suchan optimum design based on the use of carbon nano-cones and carbon nanotubes in the form of a conical and branched struc ture. In the ... (V) and length(L) of the branched carbon nanotubes structure, the big-ger g, the smaller the length (l0) of the 0th branch.ConclusionsIn this paper, the optimum design of carbon nanostruc-ture...