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Browsing MIT Open Access Articles by Title

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  • Drela, Mark; Persson, Per-Olof; Peraire, Jaime; Uranga Cabrera, Alejandra (American Institute of Aeronautics and Astronautics, 2009-06)
    The present work aims at predicting the formation of laminar separation bubbles (LSB) and the related transition to turbulence by means of Implicit Large Eddy Simulations with a high-order Discontinuous Galerkin (DG) ...
  • Smalyuk, V. A.; Betti, R.; Delettrez, J. A.; Glebov, V. Yu.; Meyerhofer, D. D.; Radha, P. B.; Regan, S. P.; Sangster, T. C.; Sanz, J.; Seka, W.; Stoecki, C.; Yaakobi, B.; Frenje, Johan A.; Li, Chikang; Petrasso, Richard D.; Seguin, Fredrick Hampton (American Physical Society, 2010-04)
    Direct-drive implosions with 20-μm-thick glass shells were conducted on the Omega Laser Facility to test the performance of high-Z glass ablators for direct-drive, inertial confinement fusion. The x-ray signal caused by ...
  • Baustian, Kelly J.; Cziczo, Daniel James; Wise, Matthew E.; Pratt, Kerri A.; Kulkarni, Gourihar; Hallar, A. Gannet; Tolbert, Margaret A. (American Geophysical Union (AGU), 2012-03)
    In this study chemical compositions of background aerosol and ice nuclei were examined through laboratory investigations using Raman spectroscopy and field measurements by single-particle mass spectrometry. Aerosol sampling ...
  • Yano, Masayuki; Modisette, James; Darmofal, David L. (American Institute of Aeronautics and Astronautics, 2011-06)
    This work presents an adaptive framework for a higher-order discretization of the Reynolds-averaged Navier-Stokes (RANS) equations. The adaptation strategy is based on an output-based error estimate and explicit control ...
  • Ashford, Nicholas A.; Hall, Ralph P. (MDPI AG, 2011-01)
    This article explores the complex relationship between environmental regulation, innovation, and sustainable development within the context of an increasingly globalizing economy. The economic development, environment, and ...
  • Hristova, Daniela; Wu, Chia-Hung; Jiang, Wei; Krebs, Carsten; Stubbe, JoAnne (American Chemical Society (ACS), 2008-03)
    Ribonucleotide reductases (RNRs) catalyze the conversion of nucleotides to deoxynucleotides in all organisms. The Escherichia coli class Ia RNR is composed of α and β subunits that form an α[subscript 2]β[subscript 2] ...
  • Gonzalez Lopez-Valcarcel, Beatriz; Ortun, Vicente; Barber, Patricia; Harris, Jeffrey E. (Elsevier B.V., 2014-03)
    Resumen Objetivo: Contrastar si hay diferencias significativas entre universidades en la proclividad a elegir medicina de familia y comunitaria (MFyC), dadas las restricciones impuestas por el número de elección. ...
  • Biesheuvel, P. M.; Soestbergen, M. van; Bazant, Martin Z. (Elsevier B.V., 2009-08)
    We analyze the steady-state behavior of a general mathematical model for reversible galvanic cells, such as redox flow cells, reversible solid oxide fuel cells, and rechargeable batteries. We consider not only operation ...
  • Carvajal, Rodolfo; Constantino, Miguel; Goycoolea, Marcos; Vielma, Juan Pablo; Weintraub, Andres (Institute for Operations Research and the Management Sciences (INFORMS), 2013-07)
    Connectivity requirements are a common component of forest planning models, with important examples arising in wildlife habitat protection. In harvest scheduling models, one way of addressing preservation concerns consists ...
  • Aaronson, Scott (Hasso-Plattner-Institut für Softwaresystemtechnik GmbH, 2011-01)
    We show that any quantum algorithm to decide whether a function f:\left[n\right] \rightarrow\left[ n\right] is a permutation or far from a permutation\ must make \Omega\left( n^{1/3}/w\right) queries to f, even if the ...
  • Brennan, Thomas J.; Lo, Andrew W. (Institute for Operations Research and the Management Sciences, 2010-06)
    A key result of the capital asset pricing model (CAPM) is that the market portfolio—the portfolio of all assets in which each asset's weight is proportional to its total market capitalization—lies on the mean-variance-efficient ...
  • Yunes, Nicolas; Kocsis, Bence; Loeb, Abraham; Haiman, Zoltan (American Physical Society (APS), 2011-10)
    We study the effects of a thin gaseous accretion disk on the inspiral of a stellar-mass black hole into a supermassive black hole. We construct a phenomenological angular momentum transport equation that reproduces known ...
  • Orlin, James B. (Association for Computing Machinery, 2010-06)
    We give the first strongly polynomial time algorithm for computing an equilibrium for the linear utilities case of Fisher's market model. We consider a problem with a set B of buyers and a set G of divisible goods. Each ...
  • Cheung, Wang Chi; Goemans, Michel X.; Wong, Sam Chiu-Wai (Society for Industrial and Applied Mathematics, 2014-01)
    In this paper, we consider the minimum unweighted Vertex Cover problem with Hard Capacity constraints (VCHC) on multigraphs and hypergraphs. Given a graph, the objective of VCHC is to find a smallest multiset of vertices ...
  • Ohlson, Tomas; Aggarwal, Varun; Elofsson, Arne; MacCallum, Robert M. (BioMed Central Ltd, 2006-07)
    Background Protein sequence alignment is one of the basic tools in bioinformatics. Correct alignments are required for a range of tasks including the derivation of phylogenetic trees and protein structure prediction. ...
  • Manurangsi, Pasin; Moshkovitz, Dana (Springer-Verlag, 2013)
    The projection games (aka Label-Cover) problem is of great importance to the field of approximation algorithms, since most of the NP-hardness of approximation results we know today are reductions from Label-Cover. In this ...
  • Ahn, Jooeun; Hogan, Neville (Public Library of Science, 2015-03)
    Mathematical techniques have provided tools to quantify the stability of rhythmic movements of humans and machines as well as mathematical models. One archetypal example is the use of Floquet multipliers: assuming periodic ...
  • Wong, Liang Jie; Johnson, Steven G.; Kaertner, Franz X. (Optical Society of America, 2014-02)
    We derive an asymptotically accurate formula for the beam waist of ultrashort, tightly focused fundamental linearly polarized, radially polarized, and azimuthally polarized modes in free space. We compute the exact beam ...
  • Hoeppner, Marc P.; Lundquist, Andrew; Pirun, Mono; Meadows, Jennifer R. S.; Zamani, Neda; Johnson, Jeremy; Sundstrom, Gorel; Cook, April; FitzGerald, Michael G.; Swofford, Ross; Mauceli, Evan; Moghadam, Behrooz Torabi; Greka, Anna; Alfoldi, Jessica; Abouelleil, Amr; Aftuck, Lynne; Bessette, Daniel; Berlin, Aaron M.; Brown, Adam; Gearin, Gary; Lui, Annie; Macdonald, J. Pendexter; Priest, Margaret; Shea, Terrance; Turner-Maier, Jason; Zimmer, Andrew; Lander, Eric S.; di Palma, Federica; Lindblad-Toh, Kerstin; Grabherr, Manfred G. (Public Library of Science, 2014-03)
    The domestic dog, Canis familiaris, is a well-established model system for mapping trait and disease loci. While the original draft sequence was of good quality, gaps were abundant particularly in promoter regions of the ...
  • Ma, Xiaohua; Hautier, Geoffroy; Jain, Anubhav; Doe, Robert E.; Ceder, Gerbrand (Electrochemical Society, 2012-12)
    We present a layered Li-intercalation oxide that operates on the V[superscript 3+]/V[superscript 4+] redox couple. The stabilization effect of adding a +3 element into the layered LiVO[subscript 2] has been studied by first ...
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