Camera calibration method for solid spheres based on triangular primitives

Performance of novolac resin‐ and resole resin‐based carbon/carbon composites in relation to their fabrication conditions

“…Concerning the C/C composites, particularly those based on N, their applications can be directed in the field of carbon foams. They exhibit good values of porosity (>50%), while their flexural strength ( σ = 14.65 MPa) is better than those reported in the literature for carbon foams reinforced with 11 wt% chopped carbon fibres ( σ = 9 MPa) 27 . New technological applications are emerging that exploit the porous structure of carbon composites, like in thermal and/or electric energy storage, microwave absorption and so forth, 28,29 where a porous structure or even a stable carbon‐reticulated structure is preferable to a solid one.…”

“…By incorporating a low volume fraction of carbon fibres, the cost of the composite becomes viable, while their performances are acceptable. In the same direction, carbon foams reinforced with a low volume fraction of chopped carbon fibres (to increase their strength and toughness) have been proposed as alternatives for some high‐cost C/C composite applications, 27 where a porous structure or even a stable carbon‐reticulated structure is preferable to a solid one. Such applications include containers for active materials for thermal energy storage, electrodes of electrochemical devices and electric energy storage, adsorbents for large molecules, microwave absorption and so forth 28,29 …”