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Elastic Properties of Nanowires - an Atomistic Evaluation

Popular Abstract in Swedish Stora framsteg har gjort det möjligt att, med dagens teknik, inte bara visualisera enskilda atomer, utan även utföra olika typer av operationer och manipulationer på atomskalan med stor precision rent experimentellt. Detta har möjliggjort tillverkning av komplexa nanostrukturer genom montering av komponenter av nanostorlek till större sammansatta system, vilket i sin tuNanowires constitute one of the fundamental building blocks in assembled nanodevices. Due to the high surface to volume ratio, the fraction of surface atoms is not negligible for nanosized elements. Because of the reduced coordination of surface atoms, the physical properties deviate from those of the bulk, which influences the overall physical properties of nanostructures. Consequently, this prov

Spatially Coupled Turbo Codes

In this paper, we introduce the concept of spatially coupled turbo codes (SC-TCs), as the turbo codes counterpart of spatially coupled low-density parity-check codes. We describe spatial coupling for both Berrou et al. and Benedetto et al. parallel and serially concatenated codes. For the binary erasure channel, we derive the exact density evolution (DE) equations of SC-TCs by using the method pro

Bioactive Pt(II) and Au(I) complexes based on 1,1’-bis(diphenylphosphino)metallocene derivatives

New 1,2,1’ substituted bis(diphenylphoshino)ruthenocenes are described and used as ligands in cis-Pt(II) complexes. The new substances were also employed in Au(I) complexes, together with previously described ferrocene-based ligands. Examples of crystal structures are presented for the ligands, as well as for the platinum and gold complexes. The preliminary biological activity covering antitumour,