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Browsing MIT Open Access Articles by Title

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  • Reckman, Hilke; Orkin, Jeffrey David; Roy, Deb K. (Association for Computing Machinery, 2011-01)
    We use data from a virtual world game for automated learning of words and grammatical constructions and their meanings. The language data are an integral part of the social interaction in the game and consist of chat ...
  • Jere, Shashank; Dauwels, Justin; Asif, Muhammad Tayyab; Vie, Nikola Mitro; Cichocki, Andrzej; Jaillet, Patrick (Institute of Electrical and Electronics Engineers (IEEE), 2014-12)
    With the rise in the population of the world's cities, understanding the dynamics of commuters' transportation patterns has become crucial in the planning and management of urban facilities and services. In this study, we ...
  • Li, Jinglai; Kath, William L. (Society for Industrial and Applied Mathematics, 2012-04)
    We describe an iterative method that extracts the underlying soliton from a noisy pulse. The method is formulated as a functional iteration: at each step, the soliton component of the difference between the noisy pulse and ...
  • Marshall, Lisa Faye; Cui, Jian; Brokmann, Xavier; Bawendi, Moungi G. (American Physical Society, 2010-07)
    Fluorescence spectroscopy of single chromophores immobilized on a substrate has provided much fundamental insight, yet the spectral line shapes and dynamics of single chromophores freely diffusing in solution have remained ...
  • Szeto, Gregory (Nature Publishing Group, 2016-09)
    Gene expression data are accumulating exponentially in public repositories. Reanalysis and integration of themed collections from these studies may provide new insights, but requires further human curation. Here we report ...
  • Teherani, James T.; Chern, Winston; Antoniadis, Dimitri A.; Hoyt, Judy L.; Ruiz, Liliana; Poweleit, Christian D.; Menendez, Jose (American Physical Society, 2012-05)
    Metal-oxide-semiconductor capacitors were fabricated on type-II staggered gap strained-Si/strained-Ge heterostructures epitaxially grown on relaxed SiGe substrates of various Ge fractions. Quasistatic quantum-mechanical ...
  • Teherani, James T.; Chern, Winston; Antoniadis, Dimitri A.; Hoyt, Judy L.; Ruiz, Liliana; Poweleit, Christian D.; Menendez, Jose (American Physical Society, 2012-05)
    Metal-oxide-semiconductor capacitors were fabricated on type-II staggered gap strained-Si/strained-Ge heterostructures epitaxially grown on relaxed SiGe substrates of various Ge fractions. Quasistatic quantum-mechanical ...
  • Wu, You; Picard, Mathieu; Baelden, Camille; Slocum, Alexander H.; Chang, Le (American Nuclear Society, 2014-11)
    Uranium present in low concentration in ocean water has the potential to greatly augment the current fuel reserve for nuclear power generation, but the challenge of extracting it economically remains. Two new designs of ...
  • Brar, B.; Kim, D. H.; del Alamo, Jesus A.; Antoniadis, Dimitri A. (Institute of Electrical and Electronics Engineers, 2010-03)
    We have experimentally extracted the virtual-source electron injection velocity, vx0, of various III-V HFETs at room temperature. This is the carrier velocity that matters for logic applications of these transistors. Sub-100 ...
  • Gu, Gen; Sun, Shu-yuan; Xu, Jun; Shen, Yong; Zhang, Shu-yi; Maznev, Alexei; Fang, Nicholas Xuanlai (IOP Publishing, 2015-04)
    Recently, Lemoult et al (2011 Phys. Rev. Lett. 107 064301) used time reversal to focus sound above an array of soda cans into a spot much smaller than the acoustic wavelength in air. In this study, we show that equally ...
  • Conlon, David; Fox, Jacob; Zhao, Yufei (Elsevier, 2014-02)
    Szemeredi's regularity lemma is a fundamental tool in extremal combinatorics. However, the original version is only helpful in studying dense graphs. In the 1990s, Kohayakawa and Rodl proved an analogue of Szemeredi's ...
  • Sindelka, Radek; Chen, Justin; Rothman, Alyssa; Dickinson, Amanda J.; Jacox, Laura A.; Sive, Hazel L. (Elsevier, 2014-07)
    The extreme anterior domain (EAD) is a conserved embryonic region that includes the presumptive mouth. We show that the Kinin-Kallikrein pathway is active in the EAD and necessary for craniofacial development in Xenopus ...
  • Spokoyny, Alexander M.; Lewis, Calvin D.; Teverovskiy, Georgiy; Buchwald, Stephen Leffler (American Chemical Society (ACS), 2012-11)
    We have prepared the first examples of B9-connected trivalent aryl and alkyl phosphinoborane species via Pd-catalyzed phosphination of 9-iodo-meta-carborane. Our studies highlight the unique electronic features of the ...
  • Simcoe, Robert A.; Sullivan, Peter W.; Kao, Melodie M.; Burgasser, Adam J.; Cooksey, Kathy; Matejek, Michael Scott (Nature Publishing Group, 2012-12)
    In typical astrophysical environments, the abundance of heavy elements ranges from 0.001 to 2 times the solar value. Lower abundances have been seen in selected stars in the Milky Way’s halo(1, 2, 3) and in two quasar ...
  • Yunes, Nicolas; Buonanno, Alessandra; Hughes, Scott A.; Pan, Yi; Barausse, Enrico; Miller, M. Coleman; Throwe, William T. (American Physical Society, 2011-02)
    We construct effective-one-body waveform models suitable for data analysis with the Laser Interferometer Space Antenna for extreme mass-ratio inspirals in quasicircular, equatorial orbits about a spinning supermassive black ...
  • Gou, Lijun; McClintock, Jeffrey E.; Reid, Mark J.; Orosz, Jerome A.; Steiner, James F.; Narayan, Ramesh; Xiang, Jingen; Remillard, Ronald Alan; Arnaud, Keith A.; Davis, Shane W. (Institute of Physics/American Astronomical Society, 2011-12)
    The compact primary in the X-ray binary Cygnus X-1 was the first black hole to be established via dynamical observations. We have recently determined accurate values for its mass and distance, and for the orbital inclination ...
  • Hock, R.; Woodraska, D.; Judge, D.; Didkovsky, L.; Lean, J.; Mariska, J.; Warren, H.; McMullin, D.; Chamberlin, P.; Bailey, S.; Fuller-Rowell, T.; Sojka, J.; Viereck, R.; Woods, T. N.; Eparvier, F. G.; Jones, A. R.; Tobiska, W. K.; Berthiaume, Gregory D (Springer Netherlands, 2010-01)
    The highly variable solar extreme ultraviolet (EUV) radiation is the major energy input to the Earth’s upper atmosphere, strongly impacting the geospace environment, affecting satellite operations, communications, and ...
  • Vucelja, M.; Chertkov, M.; Turitsyn, Konstantin (American Physical Society, 2015-02)
    We analyze the statistics of work generated by a gradient flow to stretch a nonlinear polymer. We obtain the large deviation function (LDF) of the work in the full range of appropriate parameters by combining analytical ...
  • Cai, Yang; Daskalakis, Konstantinos (Institute of Electrical and Electronics Engineers (IEEE), 2011-10)
    We provide a Polynomial Time Approximation Scheme for the multi-dimensional unit-demand pricing problem, when the buyer's values are independent (but not necessarily identically distributed.) For all ϵ >; 0, we obtain a ...
  • Wang, Jingfeng; Bras, Rafael L. (American Meteorological Society, 2010-02)
    An extremum hypothesis of turbulent transport in the atmospheric surface layer is postulated. The hypothesis has led to a unique solution of Monin–Obukhov similarity equations in terms of simple expressions linking shear ...
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