Browsing MIT Open Access Articles by Title
Now showing items 1047410493 of 34827

An extended constitutive correspondence formulation of peridynamics based on nonlinear bondstrain measures
(Elsevier, 201401)An extension of the constitutive correspondence framework of peridynamics is proposed. The main motivation is to address unphysical deformation modes which are shown to be permitted in the original constitutive formulation. ... 
Extended de Gennes Regime of DNA Confined in a Nanochannel
(American Chemical Society (ACS), 201403)Scaling regimes for polymers confined to tubular channels are well established when the channel crosssectional dimension is either very small (Odjik regime) or large (classic de Gennes regime) relative to the polymer Kuhn ... 
Extended Formulations for Polygons
(SpringerVerlag, 201203)The extension complexity of a polytope P is the smallest integer k such that P is the projection of a polytope Q with k facets. We study the extension complexity of ngons in the plane. First, we give a new proof that the ... 
Extended formulations in mixed integer conic quadratic programming
(Springer Berlin Heidelberg, 201611)In this paper we consider the use of extended formulations in LPbased algorithms for mixed integer conic quadratic programming (MICQP). Extended formulations have been used by Vielma et al. (INFORMS J Comput 20: 438–450, ... 
Extended Formulations in MixedInteger Convex Programming
(SpringerVerlag, 201605)We present a unifying framework for generating extended formulations for the polyhedral outer approximations used in algorithms for mixedinteger convex programming (MICP). Extended formulations lead to fewer iterations ... 
An Extended FrankWolfe Method with “InFace” Directions, and Its Application to LowRank Matrix Completion
(Society for Industrial & Applied Mathematics (SIAM), 201703)Motivated principally by the lowrank matrix completion problem, we present an extension of the FrankWolfe method that is designed to induce nearoptimal solutions on low dimensional faces of the feasible region. This ... 
An Extended Group Additivity Method for Polycyclic Thermochemistry Estimation
(Wiley Blackwell, 201802)Automatic kinetic mechanism generation, virtual high‐throughput screening, and automatic transition state search are currently trending applications requiring exploration of a large molecule space. Large‐scale search ... 
Extended infrared photoresponse and gain in chalcogensupersaturated silicon photodiodes
(American Institute of Physics (AIP), 201108)Highly supersaturated solid solutions of selenium or sulfur in silicon were formed by ion implantation followed by nanosecond pulsed laser melting. n[superscript +]p photodiodes fabricated from these materials exhibit gain ... 
Extended Longitudinal Scaling: Direct evidence of saturation
(Elsevier, 201101)Multiparticle production of charged particles at high energies exhibit the phenomenon of Limiting Fragmentation. Furthermore, the region in rapidity over which the production of particles appears to be independent of energy, ... 
Extended MøllerPlesset perturbation theory for dynamical and static correlations
(American Institute of Physics (AIP), 201410)We present a novel method that appropriately handles both dynamical and static electron correlations in a balanced manner, using a perturbation theory on a spinextended HartreeFock (EHF) wave function reference. While ... 
EXTENDED SUBMILLIMETER EMISSION OF THE GALACTIC CENTER AND NEARINFRARED/SUBMILLIMETER VARIABILITY OF ITS SUPERMASSIVE BLACK HOLE
(Institute of Physics/American Astronomical Society, 201109)The innermost tens of parsecs of our Galaxy are characterized by the presence of molecular cloud complexes surrounding Sgr A*, the radiative counterpart of the supermassive black hole (~4 × 10[superscript 6] M ☉) at the ... 
Extended triple collocation: Estimating errors and correlation coefficients with respect to an unknown target
(American Geophysical Union (AGU), 201409) 
EXTENDED, DUSTY STAR FORMATION FUELED BY A RESIDUAL COOLING FLOW IN THE CLUSTER OF GALAXIES SERSIC 15903
(IOP Publishing, 201504)While the cooling of the hot intracluster medium (ICM) in the cores of galaxy clusters is mostly counteracted by heating from the central active galactic nucleus (AGN), the balance is not perfect. This can lead to residual ... 
Extending Horsetail Matching for Optimization Under Probabilistic, Interval, and Mixed Uncertainties
(American Institute of Aeronautics and Astronautics (AIAA), 201802)This paper presents a new approach for optimization under uncertainty in the presence of probabilistic, interval, and mixed uncertainties, avoiding the need to specify probability distributions on uncertain parameters when ... 
Extending Hudson's theorem to mixed quantum states
(American Physical Society, 200906)According to Hudson’s theorem, any pure quantum state with a positive Wigner function is necessarily a Gaussian state. Here, we make a step toward the extension of this theorem to mixed quantum states by finding upper and ... 
Extending Scratch: New pathways into programming
(Institute of Electrical and Electronics Engineers (IEEE), 201512)We present the Scratch extension system, a toolkit that enables anyone to extend the vocabulary of the visual Scratch programming language through custom programming blocks written in JavaScript. The extension system is ... 
Extending SelfMaps to Projective Space over Finite Fields
(European Math Society, 2013)Using the closed point sieve, we extend to finite fields the following theorem proved by A. Bhatnagar and L. Szpiro over infinite fields: if X is a closed subscheme of P[superscript n] over a field, and φ: X → X satisfies ... 
Extending shearwave tomography for the lower mantle using S and SKS arrivaltime data
(Springer Berlin Heidelberg, 201406)Seismic tomography using S wave travel times faces the difficulty imposed by the interference between S and SKS phases near 83° epicentral distance, as the SKS phase overtakes the S waves in the mantle. If the crossover ... 
Extending the dynamic range of RF receivers using nonlinear equalization
(Institute of Electrical and Electronics Engineers, 200903)Systems currently being developed to operate across wide bandwidths with high sensitivity requirements are limited by the inherent dynamic range of a receiver's analog and mixedsignal components. To increase a receiver's ... 
Extending the range of validity of Fourier's law into the kinetic transport regime via asymptotic solution of the phonon Boltzmann transport equation
(American Physical Society, 201601)We derive the continuum equations and boundary conditions governing phononmediated heat transfer in the limit of a small but finite meanfree path from the asymptotic solution of the linearized Boltzmann equation in the ...