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Browsing MIT Open Access Articles by Title

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  • Rycroft, Chris H.; Wong, Yee Lok; Bazant, Martin Z. (Elsevier, 2010-01)
    We develop a multiscale simulation method for dense granular drainage, based on the recently proposed spot model, where the particle packing flows by local collective displacements in response to diffusing “spots” of ...
  • Pakman, Ari; Smith, Carl; Paninski, Liam; Huggins, Jonathan H. (Springer US, 2013-09)
    We present fast methods for filtering voltage measurements and performing optimal inference of the location and strength of synaptic connections in large dendritic trees. Given noisy, subsampled voltage observations we ...
  • Perez D'Arpino, Claudia; Shah, Julie A (Institute of Electrical and Electronics Engineers (IEEE), 2015-07)
    Interest in human-robot coexistence, in which humans and robots share a common work volume, is increasing in manufacturing environments. Efficient work coordination requires both awareness of the human pose and a plan of ...
  • Roy, Brandon Cain; Roy, Deb K. (International Speech Communication Association, 2009-09)
    We introduce a new method for human-machine collaborative speech transcription that is significantly faster than existing transcription methods. In this approach, automatic audio processing algorithms are used to robustly ...
  • Strang, W. Gilbert (National Academy of Sciences (U.S.), 2010-06)
    It is unusual for both A and A[superscript -1] to be banded—but this can be a valuable property in applications. Block-diagonal matrices F are the simplest examples; wavelet transforms are more subtle. We show that every ...
  • Chan, Chi-kwan; Psaltis, Dimitrios; Medeiros, Lia; Marrone, Daniel P.; Narayan, Ramesh; Ozel, Feryal; Sadowski, Aleksander (IOP Publishing, 2015-10)
    We explore the variability properties of long, high-cadence general relativistic magnetohydrodynamic (GRMHD) simulations across the electromagnetic spectrum using an efficient, GPU-based radiative transfer algorithm. We ...
  • Bajpayee, Abhishek; Techet, Alexandra H (Springer-Verlag, 2017-07)
    Presented is a memory-efficient and highly parallelizable method for reconstructing volumes, based on a homography fit synthetic aperture refocusing method. This technique facilitates rapid processing of very large amounts ...
  • Demanet, Laurent; Ying, Lexing (American Mathematical Society (AMS), 2012-02)
    This paper presents a numerical method for ``time upscaling'' wave equations, i.e., performing time steps not limited by the Courant-Friedrichs-Lewy (CFL) condition. The proposed method leverages recent work on fast ...
  • Korolev, Kirill Sergeevich (Public Library of Science, 2013-03)
    Species expand their geographical ranges following an environmental change, long range dispersal, or a new adaptation. Range expansions not only bring an ecological change, but also affect the evolution of the expanding ...
  • Alberton, Ori; Berg, Erez; Altman, Ehud; Ruhman, Yehonatan (American Physical Society, 2017-02)
    The problem of a quantum Ising degree of freedom coupled to a gapless bosonic mode appears naturally in many one-dimensional systems, yet surprisingly little is known how such a coupling affects the Ising quantum critical ...
  • Craig, Nathaniel; Stolarski, Daniel; Thaler, Jesse (Springer-Verlag, 2011-11)
    We introduce a novel composite Higgs theory based on con ning supersymmetric QCD. Supersymmetric duality plays a key role in this construction, with a "fat" Higgs boson emerging as a dual magnetic degree of freedom charged ...
  • Pindyck, Robert S. (Oxford University Press, 2012)
    Climate policy is complicated by the considerable uncertainties concerning the benefits and costs of abatement. We do not even know the probability distributions for future temperatures and impacts, making benefit–cost ...
  • Bensaad, Karim; Favaro, Elena; Lewis, Caroline A.; Peck, Barrie; Lord, Simon; Collins, Jennifer M.; Pinnick, Katherine E.; Wigfield, Simon; Buffa, Francesca M.; Li, Ji-Liang; Zhang, Qifeng; Wakelam, Michael J.O.; Karpe, Fredrik; Schulze, Almut; Harris, Adrian L.; Lewis, Caroline A. (2014-10)
    An in vivo model of antiangiogenic therapy allowed us to identify genes upregulated by bevacizumab treatment, including Fatty Acid Binding Protein 3 (FABP3) and FABP7, both of which are involved in fatty acid uptake. In ...
  • Orji, Uzoma A.; Remscrim, Zachary N.; Laughman, Christopher Reed; Leeb, Steven B.; Wichakool, Warit; Schantz, Christopher James; Cox, Robert A.; Paris, James; Kirtley, James L., Jr.; Norford, Leslie Keith (Institute of Electrical and Electronics Engineers (IEEE), 2010-03)
    Harmonic analysis of motor current has been used to track the speed of motors for sensorless control. Algorithms exist that track the speed of a motor given a dedicated stator current measurement, for example. Harmonic ...
  • Vitale, Steven A.; Wyatt, Peter W.; Checka, Nisha; Kedzierski, Jakub T.; Keast, Craig L. (Institute of Electrical and Electronics Engineers (IEEE), 2010-02)
    Ultralow-power electronics will expand the technological capability of handheld and wireless devices by dramatically improving battery life and portability. In addition to innovative low-power design techniques, a complementary ...
  • Rock, Jeremy Michael; Amon, Angelika B. (Elsevier Ltd., 2009-12)
    Mitosis is governed by the oscillation of cyclin dependent kinase (CDK) activity and ubiquitin-dependent proteolysis. Entry into mitosis is initiated by mitotic cyclin-CDK activation. Anaphase onset occurs upon activation ...
  • Ruan, Liangzhong; Lau, Vincent K. N.; Win, Moe Z. (Institute of Electrical and Electronics Engineers (IEEE), 2012-07)
    Attributed by its breakthrough performance in interference networks, interference alignment (IA) has attracted great attention in the last few years. However, despite the tremendous works dedicated to IA, the feasibility ...
  • Sun, Ruoshi; Ceder, Gerbrand (American Physical Society, 2011-12)
    We use first-principles computations to investigate whether the band gap of pyrite FeS₂ can be increased by alloying in order to make it a more effective photovoltaic material. In addition to the isostructural compounds ...
  • Ahn, Jooeun; Hogan, Neville (Institute of Electrical and Electronics Engineers, 2010-08)
    Dynamically entraining human gait with periodic torque from a robot may provide an approach to walking therapy that is uniquely supportive of normal biological function. To test the feasibility of this approach we perturbed ...
  • Cartwright, Dustin; Tse, David; Bresler, Guy (Institute of Electrical and Electronics Engineers (IEEE), 2014-07)
    We study vector space interference alignment for the multiple-input multiple-output interference channel with no time or frequency diversity, and no symbol extensions. We prove both necessary and sufficient conditions for ...
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