The sub 6-h project

The SNAP Project: Towards Sub-Nanosecond Arithmetic

SNAP — the Stanford subnanosecond arithmetic processor — is an interdisciplinary effort to develop theory, tools, and technology for realizing an arithmetic processor with execution rates under 1 ns. Specific improvements in clocking methods, floating-point addition algorithms, floatingpoint multiplication algorithms, division and higher-level function algorithms, design tools, and packaging te...

In Situ Observation of Dehydration-Induced Phase Transformation from Na₂Nb₂O₆H₂O to NaNbO₃

We have monitored the phase transformation from a Sandia octahedral molecular sieve Na2Nb2O6−H2O to a piezoelectric NaNbO3 nanowire through in situ X-ray diffraction (XRD) and transmission electron microscopy (TEM) measurements at high temperatures. After dehydration at 288 °C, the Na2Nb2O6−H2O becomes significantly destabilized and transforms into NaNbO3 with the increase of time. The phase tr...

A six-dimensional H₂–H₂ potential energy surface for bound state spectroscopy

6 . 824 Final Project

The presented project implements a persistent, fault-tolerant, high-performance key/value store. In order to achieve these goals, the system implements at-most-once semantics, relies upon Paxos for reaching consensus, shards the database across multiple replica groups, persistently stores values to disk, and implements protocols for automatically recovering and updating disk contents upon serve...

Metal cluster chemistry: Structure and stereochemistry in the polynuclear rhodium hydrides H_nRh_n[P(OR)₃]_2n

Crystallographic analyses of x-ray and neutron diffraction data have provided a definitive structural representation of fHRh[P(O-i-C3H7)3J2j2 and IHRhIP(OCH3)31213. These polynuclear hydrides are generated from square planar H2RhIP(OR)3J2 units by edge (hydrogen atom) sharing and by vertex (hydrogen atom) sharing to form the dimeric and trimeric structures, respectively. The square-planar units...