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# Browsing MIT Open Access Articles by Title

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• (The Society of Rheology, 2009-11)
We measure the viscoelastic properties of a highly entangled narrow molecular weight polyisoprene melt with approximately 280 entanglements per chain in steady and transient shear and in elongational flows. The storage and ...
• (American Physical Society, 2010-09)
It seems generic to have vacua with lower dimensionality than ours. We consider the possibility that the observable universe originated in a transition from one of these vacua. Such a universe has anisotropic spatial ...
• (American Geophysical Union (AGU), 2009-06)
Maxwell's equations can be used to demonstrate that the components of a static magnetic field in a region of space devoid of sources are not independent. This means that magnetometers that measure a single component of the ...
• (The Oceanography Society, 2009-09)
Over the past 20 years there has been growing interest in the concept of fertilizing the ocean with iron to abate global warming. This interest was catalyzed by basic scientific experiments showing that iron limits primary ...
• (American Geophysical Union (AGU), 2011-12)
Density fronts are ubiquitous features of the upper ocean. Here, numerical simulations show that restratification at fronts inhibits vertical mixing, triggering phytoplankton blooms in low-light conditions. The stability ...
• (American Meteorological Society, 2009-03)
Several extensions of energy balance models (EBMs) are explored in which (i) sea ice acts to insulate the atmosphere from the ocean and (ii) ocean heat transport is allowed to have some meridional structure controlled ...
• (European Geosciences Union / Copernicus, 2011-01)
Quantifying time-responses of the ocean to tracer input is important to the interpretation of paleodata from sediment cores – because surface-injected tracers do not instantaneously spread throughout the ocean. To obtain ...
• (Canadian Meteorological and Oceanographic Society, 2009-10)
Oceanic meridional transports evaluated over the width of the Pacific Ocean from altimetric observations become incoherent surprisingly rapidly with meridional separation. Even with 15 years of data, surface slopes show ...
• (Institute of Electrical and Electronics Engineers, 2010-05)
We developed a 1 GHz Er-doped femtosecond fiber laser system providing 2nJ pulses at [equivalence relation symbol]100fs durations and demonstrated octave-spanning supercontinuum generation from 1µm - 2.4µm that is suitable ...
• (Frontiers Research Foundation, 2012-06)
In its simplest formulation, reinforcement learning is based on the idea that if an action taken in a particular context is followed by a favorable outcome, then, in the same context, the tendency to produce that action ...
• (American Physical Society, 2012-11)
The existence of topological superconductors preserving time-reversal symmetry was recently predicted, and they are expected to provide a solid-state realization of itinerant massless Majorana fermions and a route to ...
• (Copernicus GmbH, 2013-02)
A modified cumulus convection parametrisation scheme is presented. This scheme computes the mass of air transported upward in a cumulus cell using conservation of moisture and a detailed distribution of convective precipitation ...
On the verge of conclusive checks on the Standard Model by the LHC, we discuss some of the basic assumptions. The reason for this analysis stems from a recent proposal of an electroweak model based on a nonlinearly realized ...
• (American Chemical Society, 2012-04)
The oxidative evolution (“aging”) of organic species in the atmosphere is thought to have a major influence on the composition and properties of organic particulate matter but remains poorly understood, particularly for ...
• (Cambridge University Press, 2011-06)
Waste from agricultural products represents a disposal liability, which needs to be addressed. Palm oil is the most widely traded edible oil globally, and its production generates 85 million tons of aqueous by-products ...
• (Society for Industrial and Applied Mathematics, 2010-01)
We consider the Asymmetric Traveling Salesman problem for costs satisfying the triangle inequality. We derive a randomized algorithm which delivers a solution within a factor O(log n/ log log n) of the optimum with high ...
• (Public Library of Science, 2012-01)
In this paper we introduce the olog, or ontology log, a category-theoretic model for knowledge representation (KR). Grounded in formal mathematics, ologs can be rigorously formulated and cross-compared in ways that other ...
• (Society of Industrial and Applied Mathematics (SIAM), 2010-08)
We compute $u(t)=\exp(-tA)\varphi$ using rational Krylov subspace reduction for $0\leq t<\infty$, where $u(t),\varphi\in\mathbf{R}^N$ and $0<A=A^*\in\mathbf{R}^{N\times N}$. A priori optimization of the rational Krylov ...
• (Springer-Verlag, 2012-08)
This essay provides a brief overview of the evolution of the field of industrial organization from its emergence to the present, and it offers some observations about the present state of the field. While there has been ...
• (National Academy of Sciences of Ukraine, 2011-07)
We study differential operators on an elliptic curve of order higher than 2 which are algebraically integrable (i.e., finite gap). We discuss classification of such operators of order 3 with one pole, discovering exotic ...

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