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Browsing MIT Open Access Articles by Title

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  • Barkeshli, Maissam; Wen, Xiao-Gang (American Physical Society, 2010-01)
    We study U(1)×U(1)⋊Z2 Chern-Simons theory with integral coupling constants (k,l) and its relation to certain non-Abelian fractional quantum Hall (FQH) states. For the U(1)×U(1)⋊Z2 Chern-Simons theory, we show how to compute ...
  • Geramifard, Alborz; Redding, Joshua; Roy, Nicholas; How, Jonathan P. (Institute of Electrical and Electronics Engineers (IEEE), 2011-06)
    Risk and reward are fundamental concepts in the cooperative control of unmanned systems. This paper focuses on a constructive relationship between a cooperative planner and a learner in order to mitigate the learning risk ...
  • Mittal, Manas; Paradiso, Joseph A. (Institute of Electrical and Electronics Engineers / IEEE Sensors Council, 2010-09)
    The Ubicorder is a mobile, location and orientation aware device for browsing and interacting with real-time sensor network data. In addition to browsing data, the Ubicorder also provides a graphical user interface (GUI) ...
  • Kasture, Harshad; Sanchez, Daniel (Association for Computing Machinery (ACM), 2014-03)
    Chip-multiprocessors (CMPs) must often execute workload mixes with different performance requirements. On one hand, user-facing, latency-critical applications (e.g., web search) need low tail (i.e., worst-case) latencies, ...
  • Klopfer, Eric; Perry, Judith P. (Taylor & Francis, 2014-04)
    The integration of learning games into schools holds significant promise, yet faces numerous obstacles. Ubiquitous games (casual games for smart phones) attempt to motivate students to engage repeatedly with content beyond ...
  • Isaacson, Marisa K.; Ploegh, Hidde (Elsevier, 2009-06)
    Ubiquitin is important for nearly every aspect of cellular physiology. All viruses rely extensively on host machinery for replication; therefore, it is not surprising that viruses connect to the ubiquitin pathway at many ...
  • Stevens, Justin; Williams, Michael (IOP Publishing, 2013-12)
    The use of multivariate classifiers, especially neural networks and decision trees, has become commonplace in particle physics. Typically, a series of classifiers is trained rather than just one to enhance the performance; ...
  • Subramanian, Jayashree; Morris, Robert; Balakrishnan, Hari (Institute of Electrical and Electronics Engineers (IEEE), 2012-05)
    This paper proposes UFlood, a flooding protocol for wireless mesh networks. UFlood targets situations such as software updates where all nodes need to receive the same large file of data, and where limited radio range ...
  • Franz, Jason R.; Jao, Jen King (Institute of Electrical and Electronics Engineers, 2006-05)
    Radar measurements of windblown forest clutter were collected within the UHF radar band. Effects of depression angle and wind speed variations on the clutter spectra are investigated. It is found that less of the clutter ...
  • Burgasser, Adam J.; Looper, Dagny; Rayner, John T. (IOP Publishing, 2010-04)
    We confirm the substellar nature of ULAS J141623.94+134836.3 (aka SDSS J1416+1348B), a common proper motion companion to the blue L dwarf SDSS J141624.08+134826.7 identified by Burningham et al. and Scholz. Low-resolution ...
  • Cui, Yanxia; Fung, Kin Hung; Xu, Jun; Ma, Hyungjin; Jin, Yi; He, Sailing; Fang, Nicholas Xuanlai (American Chemical Society (ACS), 2012-02)
    We present an ultrabroadband thin-film infrared absorber made of sawtoothed anisotropic metamaterial. Absorptivity of higher than 95% at normal incidence is supported in a wide range of frequencies, where the full absorption ...
  • Wu, Cheng-Hsun; Park, Jee Woo; Ahmadi, Peyman; Will, Sebastian; Zwierlein, Martin Wolfram (American Physical Society, 2012-08)
    We report on the formation of ultracold weakly bound Feshbach molecules of [superscript 23]Na[superscript 40]K, the first fermionic molecule that is chemically stable in its absolute ground state. The lifetime of the nearly ...
  • Do Valle, Bruno Guimaraes; Wentz, Christian T.; Sarpeshkar, Rahul (Institute of Electrical and Electronics Engineers (IEEE), 2010-08)
    This paper describes an ultra-compact analog lithium-ion (Li-ion) battery charger for wirelessly powered implantable medical devices. The charger presented here takes advantage of the tanh output current profile of an ...
  • Ramasesha, Krupa; Roberts, Sean Thomas; Nicodemus, Rebecca A.; Mandal, Aritra; Tokmakoff, Andrei (American Institute of Physics (AIP), 2011-08)
    Rearrangements of the hydrogen bond network of liquid water are believed to involve rapid and concerted hydrogen bond switching events, during which a hydrogen bond donor molecule undergoes large angle molecular reorientation ...
  • Kolb, Brian; Kolpak, Alexie M. (American Physical Society, 2013-12)
    With its combination of favorable band gap, high absorption coefficient, material abundance, and low cost, iron pyrite, FeS[subscript 2], has received a great deal of attention over the past decades as a promising material ...
  • Rodriguez, Alejandro W.; Reed, Evan J. (American Physical Society, 2012-07)
    The fastest self-sustained chemical reactions in nature occur during detonation of energetic materials where reactions are thought to occur on nanosecond or longer time scales in carbon-containing materials. Here we perform ...
  • Huang, Chien-Chih; Bazant, Martin Z.; Thorsen, Todd A. (Royal Society of Chemistry (RSC Publishing), 2009-10)
    This paper details the development of an integrated AC electro-osmotic (ACEO) microfluidic pump for dilute electrolytes consisting of a long serpentine microchannel lined with three dimensional (3D) stepped electrode arrays. ...
  • Gabor, Nathaniel M.; Zhong, Zhaohui; Bosnick, Ken; McEuen, Paul L. (American Physical Society, 2012-02)
    Ultrafast photocurrent measurements are performed on individual carbon nanotube p-i-n photodiodes. The photocurrent response to subpicosecond pulses separated by a variable time delay Δt shows strong photocurrent suppression ...
  • Bravo-Abad, Jorge; Ippen, Erich P.; Soljacic, Marin (American Institute of Physics (AIP), 2009-06)
    In this letter we theoretically demonstrate that by dramatically enhancing two-photon absorption, all-silicon optical microresonators can act as efficient photodetectors for light at telecom wavelengths. We illustrate this ...
  • Daranciang, Dan; Highland, Matthew J.; Wen, Haidan; Young, Steve M.; Brandt, Nathaniel Curran; Hwang, Harold Young; Vattilana, Michael; Nicoul, Matthieu; Quirin, Florian; Goodfellow, John; Qi, Tingting; Grinberg, Ilya; Fritz, David M.; Cammarata, Marco; Zhu, Diling; Lemke, Henrik T.; Walko, Donald A.; Dufresne, Eric M.; Li, Yuelin; Larsson, Jo¨rgen; Reis, David A.; Sokolowski-Tinten, Klaus; Nelson, Keith Adam; Rappe, Andrew M.; Fuoss, Paul H.; Stephenson, G. Brian; Lindenberg, Aaron M. (American Physical Society, 2012-02)
    We show that light drives large-amplitude structural changes in thin films of the prototypical ferroelectric PbTiO[subscript 3] via direct coupling to its intrinsic photovoltaic response. Using time-resolved x-ray scattering ...
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