Search
Now showing items 1-10 of 2626
What must a global theory of cortex explain?
(Elsevier, 2014)
At present there is no generally accepted theory of how cognitive phenomena arise from computations in cortex. Further, there is no consensus on how the search for one should be refocussed so as to make it more fruitful. ...
The Role of Nonlinear Substrate Elasticity in the Wrinkling of Thin Films
(The Royal Society, 2013)
The role of substrate nonlinearity on the stability of wrinkling of thin films bonded to compliant substrates is investigated within the initial post-bifurcation range when wrinkling first emerges. A fully nonlinear ...
Differential Privacy with Imperfect Randomness
(Springer Verlag, 2012)
In this work we revisit the question of basing cryptogra- phy on imperfect randomness. Bosley and Dodis (TCC’07) showed that if a source of randomness R is “good enough” to generate a secret key capable of encrypting k ...
Randomness Condensers for Efficiently Samplable, Seed-Dependent Sources
(Springer Verlag, 2012)
We initiate a study of randomness condensers for sources that are efficiently samplable but may depend on the seed of the con- denser. That is, we seek functions Cond : {0, 1}n ×{0, 1}d → {0, 1}m such that if we choose a ...
An Apparatus for Performing Microtensile Tests at Elevated Temperatures inside a Scanning Electron Microscope
(Elsevier, 2013)
In this paper, we introduce an apparatus to perform microtensile tests at elevated temperatures inside a scanning electron microscope. The apparatus has a stroke of 250 μm with a displacement resolution of 10 nm and a load ...
Tetrahedral colloidal clusters from random parking of bidisperse spheres
(American Physical Society, 2013)
Using experiments and simulations, we investigate the clusters that form when colloidal spheres stick irreversibly to—or “park” on—smaller spheres. We use either oppositely charged particles or particles labeled with ...
Isoprene Emissions in Africa Inferred from OMI Observations of Formaldehyde Columns
(European Geosciences Union, 2012)
We use 2005–2009 satellite observations of formaldehyde (HCHO) columns from the OMI instrument to infer biogenic isoprene emissions at monthly 1 × 1° resolution over the African continent. Our work includes new approaches ...
Regional warming from aerosol removal over the United States: Results from a transient 2010–2050 climate simulation
(Elsevier BV, 2012)
We use a general circulation model (NASA Goddard Institute for Space Studies GCM 3) to investigate the regional climate response to removal of aerosols over the United States. We perform a pair of transient 2010–2050 climate ...
Distributed Dynamic Spectrum Allocation for Secondary Users in a Vertical Spectrum Sharing Scenario
(Japan Science and Technology Agency (JST), 2012)
In this paper, we study the problem of distributed spectrum allocation under a vertical spectrum sharing scenario in a cognitive radio network. The secondary users share the spectrum licensed to the primary user by observing ...
Finite dimensional FRI
(Institute of Electrical and Electronics Engineers, 2014)
Traditional Finite Rate of Innovation (FRI) theory has considered the problem of sampling continuous-time signals. This framework can be naturally extended to the case where the input is a discrete-time signal. Here we ...