?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Self-Replication+and+Self-Assembly+for+Manufacturing&rft.creator=Ewaschuk%2C+Robert&rft.creator=Turney%2C+Peter+D.&rft.subject=Dynamical+Systems&rft.subject=Theoretical+Biology&rft.description=It+has+been+argued+that+a+central+objective+of+nanotechnology+is+to+make+%0Aproducts+inexpensively%2C+and+that+self-replication+is+an+effective+approach+%0Ato+very+low-cost+manufacturing.+The+research+presented+here+is+intended+to+%0Abe+a+step+towards+this+vision.+We+describe+a+computational+simulation+of+%0Ananoscale+machines+floating+in+a+virtual+liquid.+The+machines+can+bond+%0Atogether+to+form+strands+(chains)+that+self-replicate+and+self-assemble+%0Ainto+user-specified+meshes.+There+are+four+types+of+machines+and+the+%0Asequence+of+machine+types+in+a+strand+determines+the+shape+of+the+mesh+%0Athey+will+build.+A+strand+may+be+in+an+unfolded+state%2C+in+which+the+bonds+%0Aare+straight%2C+or+in+a+folded+state%2C+in+which+the+bond+angles+depend+on+the+%0Atypes+of+machines.+By+choosing+the+sequence+of+machine+types+in+a+strand%2C+%0Athe+user+can+specify+a+variety+of+polygonal+shapes.+A+simulation+typically+%0Abegins+with+an+initial+unfolded+seed+strand+in+a+soup+of+unbonded+machines.+%0AThe+seed+strand+replicates+by+bonding+with+free+machines+in+the+soup.+The+%0Achild+strands+fold+into+the+encoded+polygonal+shape%2C+and+then+the+polygons+%0Adrift+together+and+bond+to+form+a+mesh.+We+demonstrate+that+a+variety+of+%0Apolygonal+meshes+can+be+manufactured+in+the+simulation%2C+by+simply+changing+%0Athe+sequence+of+machine+types+in+the+seed.&rft.publisher=MIT+Press&rft.date=2006-07&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F5038%2F1%2FNRC-48760.pdf&rft.identifier=++Ewaschuk%2C+Robert+and+Turney%2C+Peter+D.++(2006)+Self-Replication+and+Self-Assembly+for+Manufacturing.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F5038%2F