https://w3id.org/np/RAJADhse-fgEP7k6vitftJyX8vcLYw1KCpq1DgFEQoPyI/Head https://w3id.org/np/RAJADhse-fgEP7k6vitftJyX8vcLYw1KCpq1DgFEQoPyI http://www.nanopub.org/nschema#hasAssertion https://w3id.org/np/RAJADhse-fgEP7k6vitftJyX8vcLYw1KCpq1DgFEQoPyI/assertion https://w3id.org/np/RAJADhse-fgEP7k6vitftJyX8vcLYw1KCpq1DgFEQoPyI http://www.nanopub.org/nschema#hasProvenance https://w3id.org/np/RAJADhse-fgEP7k6vitftJyX8vcLYw1KCpq1DgFEQoPyI/provenance https://w3id.org/np/RAJADhse-fgEP7k6vitftJyX8vcLYw1KCpq1DgFEQoPyI http://www.nanopub.org/nschema#hasPublicationInfo https://w3id.org/np/RAJADhse-fgEP7k6vitftJyX8vcLYw1KCpq1DgFEQoPyI/pubinfo https://w3id.org/np/RAJADhse-fgEP7k6vitftJyX8vcLYw1KCpq1DgFEQoPyI http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.nanopub.org/nschema#Nanopublication https://w3id.org/np/RAJADhse-fgEP7k6vitftJyX8vcLYw1KCpq1DgFEQoPyI/assertion https://w3id.org/delphi/resource/claim/buehler-2009-helical-networks-05 http://purl.org/dc/terms/description With W = 1.63 × 10⁻¹⁷ J to break one alpha-helix element and a mesh cross-section A = 1.2 × 10⁻¹⁷ m², the network's fracture surface energy is of the same order as that of silicon along <111>, while its elastic modulus (about 3 GPa for the alpha-helix) is far below silicon's 243 GPa. https://w3id.org/delphi/resource/claim/buehler-2009-helical-networks-05 http://purl.org/dc/terms/type mathematical-law https://w3id.org/delphi/resource/claim/buehler-2009-helical-networks-05 http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/delphi/ontology/Claim https://w3id.org/delphi/resource/claim/buehler-2009-helical-networks-05 http://www.w3.org/2000/01/rdf-schema#comment Notation basis: W and A are in the text; the defining equation and the resulting value are images in the JATS and are missing from the vendored text. The factor 2 (two surfaces) is the standard definition; if the paper defines γ = W/A the value is 1.36 J m⁻². To be checked against the PDF before use. https://w3id.org/delphi/resource/claim/buehler-2009-helical-networks-05 http://www.w3.org/2000/01/rdf-schema#label Fracture surface energy of the alpha-helix network is comparable to silicon's https://w3id.org/delphi/resource/claim/buehler-2009-helical-networks-05 http://www.w3.org/2004/02/skos/core#notation \gamma = \frac{W}{2A} \approx \frac{1.63\times10^{-17}\ \mathrm{J}}{2 \times 1.2\times10^{-17}\ \mathrm{m^2}} \approx 0.68\ \mathrm{J\,m^{-2}} https://w3id.org/delphi/resource/claim/buehler-2009-helical-networks-05 https://w3id.org/delphi/ontology/context Theodor Ackbarow et al., “Alpha-Helical Protein Networks Are Self-Protective and Flaw-Tolerant”, PLoS ONE 4, e6015 (2009), doi:10.1371/journal.pone.0006015; Results and Discussion. Scope: Mesoscale alpha-helix network model https://w3id.org/np/RAJADhse-fgEP7k6vitftJyX8vcLYw1KCpq1DgFEQoPyI/provenance https://doi.org/10.1371/journal.pone.0006015 http://purl.org/dc/terms/bibliographicCitation Theodor Ackbarow, Dipanjan Sen, Christian Thaulow, Markus J. Buehler. Alpha-Helical Protein Networks Are Self-Protective and Flaw-Tolerant. PLoS ONE 4, e6015 (2009). doi:10.1371/journal.pone.0006015 https://doi.org/10.1371/journal.pone.0006015 http://purl.org/dc/terms/creator Theodor Ackbarow, Dipanjan Sen, Christian Thaulow, Markus J. 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