SFI Working Papers contain accounts of scienti5ic work of the author(s) and do not necessarily represent the views of the Santa Fe Institute. We accept papers intended for publication in peer-­‐reviewed journals or proceedings volumes, but not papers that have already appeared in print. Except for papers by our external faculty, papers must be based on work done at SFI, inspired by an invited v...

Spiral phyllotactic patterning is the result of intricate auxin transport relationships in the shoot apical meristem (SAM) that act to place auxin maxima at the future sites of leaf initiation. Inherent to this process is a bias in auxin distribution in leaf primordia, such that increased auxin is found on the descending side of the leaf (toward the older neighbor) compared to the ascending sid...

We propose a correction to the coefficient of nuclear-spin diffusion by factor $1/\sqrt{1-\overline{p}^{2}}$, where $\overline{p}$ is average polarization. The correction, derived extending Lowe-Gade theory low-temperature cases, implies that transportation nuclear magnetization through accelerates when system hyperpolarized, whereas for low-polarization approaches unity and coincides with conv...

Time-domain reflectometry applied for power cable diagnostics employs transmission line parameters to determine signal shape and delay. This paper proposes utilize pulse reflection measurement evaluate the symmetry of a three-core as part production quality assessment. For rotation-symmetric cable, can be obtained analytically, with modal analysis propagation channels decoupled. Asymmetry cause...

Hybrid architectures with electronic buffering /processing and optical switching fabric are receiving a lot of attention as potential candidates for the design of scalable high. performance switches/routers. However, the reconfiguration overhead of optical fabrics introduces new challenges for the traffic scheduling across these switches. Existing algorithms proposed for this architecture can b...

Modular inverse computation is needed in several public key cryptographic applications. In this work, we present two VLSI hardware implementations used in the calculation of Montgomery modular inverse operation. The implementations are based on the same inversion algorithm, however, one is fixed (fully parallel) and the other is scalable. The scalable design is the novel modification performed ...