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Browsing MIT Open Access Articles by Title

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  • Zhang, J.; Lai, M. J.; Dippel, A. -C.; Raabe, D.; Tasan, Cemal (Nature Publishing Group, 2017-02)
    The most efficient way to tune microstructures and mechanical properties of metallic alloys lies in designing and using athermal phase transformations. Examples are shape memory alloys and high strength steels, which ...
  • Brown, Adam R.; Susskind, Leonard; Swingle, Brian; Zhao, Ying; Roberts, Daniel Adam (American Physical Society, 2016-04)
    Our earlier paper “Complexity Equals Action” conjectured that the quantum computational complexity of a holographic state is given by the classical action of a region in the bulk (the “Wheeler-DeWitt” patch). We provide ...
  • Lo, Andrew W. (Elsevier, 2011-07)
    Although the precise origins of the term “complex adaptive system” are unclear, nevertheless, the hackneyed phrase is now firmly ensconced in the lexicon of biologists, physicists, mathematicians, and, most recently, ...
  • Caneva, T.; Silva, A.; Fazio, R.; Lloyd, Seth; Calarco, T.; Montangero, S. (American Physical Society, 2014-04)
    We demonstrate that arbitrary time evolutions of many-body quantum systems can be reversed even in cases when only part of the Hamiltonian can be controlled. The reversed dynamics obtained via optimal control—contrary to ...
  • Adler, Aviv; Daskalakis, Konstantinos; Demaine, Erik D (Schloss Dagstuhl, Leibniz-Zentrum für Informatik GmbH, 2016-07)
    The Jordan curve theorem and Brouwer's fixed-point theorem are fundamental problems in topology. We study their computational relationship, showing that a stylized computational version of Jordan’s theorem is PPAD-complete, ...
  • Deckelbaum, Alan; Tzamos, Christos; Daskalakis, Konstantinos (Society for Industrial and Applied Mathematics, 2014)
    Myerson's seminal work provides a computationally efficient revenue-optimal auction for selling one item to multiple bidders [18]. Generalizing this work to selling multiple items at once has been a central question in ...
  • Ahmadi, Amir Ali; Majumdar, Anirudha; Tedrake, Russell Louis (Institute of Electrical and Electronics Engineers (IEEE), 2013-06)
    We show that for continuous time dynamical systems described by polynomial differential equations of modest degree (typically equal to three), the following decision problems which arise in numerous areas of systems and ...
  • Meyers, Carol A.; Schulz, Andreas S. (John Wiley & Sons, Inc., 2012-03)
    We investigate issues of complexity related to welfare maximization in congestion games. In particular, we provide a full classification of complexity results for the problem of finding a minimum cost solution to a congestion ...
  • Chang, Tom; Wu, Cheng-chin; Echim, Marius; Vogelsberger, Mark; Hernquist, Lars; Sijacki, Debora; Lamy, Herve (Springer-Verlag, 2014-08)
    “Dynamic complexity” is a phenomenon observed for a nonlinearly interacting system within which multitudes of different sizes of large scale coherent structures emerge, resulting in a globally nonlinear stochastic behavior ...
  • Milanic, Martin; Orlin, James B.; Rudolf, Gabor (Springer Science + Business Media B.V., 2011-01)
    The class of equistable graphs is defined by the existence of a cost structure on the vertices such that the maximal stable sets are characterized by their costs. This graph class, not contained in any nontrivial hereditary ...
  • Wang, Yang; Xiao, Xinshu; Zhang, Jianming; Choudhury, Rajarshi; Li, Kai; Ma, Meng; Wang, Zefeng; Robertson, Alex De Jong; Burge, Christopher B. (Nature Publishing Group, 2012-12)
    To better understand splicing regulation, we used a cell-based screen to identify ten diverse motifs that inhibit splicing from introns. Motifs were validated in another human cell type and gene context, and their presence ...
  • Forsten-Williams, Kimberly; Kurtagic, Elma; Nugent, Matthew A. (BioMed Central Ltd, 2011-10)
    Background Vascular homeostasis and response to injury are dependent on the coordinated activity of growth factors such as vascular endothelial growth factor-A (VEGF). VEGF signaling is mediated by VEGF receptors 1 (VEGFR1) ...
  • Sayama, Hiroki; Bar-Yam, Yaneer; Klein, Mark; Faratin, Peyman (Association for Computing Machinery (ACM), 2002-11)
    What can be done to better support collaborative innovation?
  • Adepetu, Adedamola; Arnautovic, Edin; Svetinovic, Davor; de Weck, Olivier L. (Institute of Electrical and Electronics Engineers (IEEE), 2014-02)
    A modern and efficient information and communication technology (ICT) infrastructure is essential for managing the challenges in the complex urban systems development. The ICT infrastructure is a complex system consisting ...
  • Hamilton, Catrina M.; Johns-Krull, Christopher M.; Mundt, Reinhard; Herbst, William; Winn, Joshua Nathan (IOP Publishing, 2012-05)
    We have obtained 48 high-resolution echelle spectra of the pre-main-sequence eclipsing binary system KH 15D (V582 Mon, P = 48.37 days, e ~ 0.6, M[subscript A] = 0.6 M [subscript ☉], MB = 0.7 M [subscript ☉]). The eclipses ...
  • Isaacson, Michal; Shoval, Noam; Wahl, Hans-Werner; Oswald, Frank; Auslander, Gail (Springer US, 2014-10)
    Recent years have witnessed a growing volume of papers describing the use of GPS technology and other tracking technologies for obtaining data on time–space activities. These methods have several advantages over traditional ...
  • Karges, J.; Wood, R. J.; Gilpin, Kyle W.; Rus, Daniela L.; Torres-Jara, E. (Institute of Electrical and Electronics Engineers (IEEE), 2010-12)
    We have presented a simple but effective method to design flexible actuators. This process relies on understanding the behavior of a simple unit cell element built out of SMA sheet. The unit cell effectively uses the ...
  • McGrogan, Frank Patrick; Swamy, Tushar; Bishop, Sean; Eggleton, Erica E; Porz, Lukas W.; Chen, Xinwei; Chiang, Yet-Ming; Van Vliet, Krystyn J (Wiley Blackwell, 2017-06)
    Young's modulus, hardness, and fracture toughness are measured by instrumented nanoindentation for an amorphous Li₂S–P₂S₅ Li-ion solid electrolyte. Although low elastic modulus suggests accommodation of significant ...
  • Vallaghe, Sylvain P.; Huynh, Dinh Bao Phuong; Knezevic, David; Nguyen, Loi; Patera, Anthony T. (Springer International Publishing, 2015-05)
    Background: A component-based approach is introduced for fast and flexible solution of parameter-dependent symmetric eigenproblems. Methods: Considering a generalized eigenproblem with symmetric stiffness and mass ...
  • Liang, Alexandria D; Lippard, Stephen J. (American Chemical Society (ACS), 2014-11)
    The multicomponent protein toluene/o-xylene monooxygenase (ToMO) activates molecular oxygen to oxidize aromatic hydrocarbons. Prior to dioxygen activation, two electrons are injected into each of two diiron(III) units of ...
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