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Browsing MIT Open Access Articles by Title

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  • Summers, Edward K.; Lienhard, John H.; Zubair, Syed M. (ASME International, 2011-02)
    Relative to solar water heaters, solar air heaters have received relatively little investigation and have resulted in few commercial products. However, in the context of a humidification-dehumidification (HDH) desalination ...
  • Thompson, T. M.; Saari, Rebecca Kaarina; Selin, Noelle Eckley (Copernicus GmbH, 2014-01)
    We evaluate how regional characteristics of population and background pollution might impact the selection of optimal air quality model resolution when calculating the human health impacts of changes to air quality. Using ...
  • Bell, Michael M.; Montgomery, Michael T.; Emanuel, Kerry Andrew (American Meteorological Society, 2012-11)
    Quantifying air–sea exchanges of enthalpy and momentum is important for understanding and skillfully predicting tropical cyclone intensity, but the magnitude of the corresponding wind speed–dependent bulk exchange coefficients ...
  • Histon, Jonathan; Li, Lishuai; Hansman, Robert J., Jr. (Institute of Electrical and Electronics Engineers, 2010-12)
    Airspace structure is a key factor influencing controller cognitive complexity as it forms a basis for abstractions simplifying controller mental models of air traffic situations. In evaluating the feasibility of new ...
  • Takeda, Youhei; Andrew, Trisha Lionel; Lobez, Jose M.; Mork, Anna Jolene; Swager, Timothy Manning (John Wiley & Sons, Inc., 2012-08)
    Thumbnail image of graphical abstract A thin-film transistor: An n-type polymer semiconductor, poly(2,3-bis(perfluorohexyl)thieno[3,4-b]pyrazine), was synthesized through a Pd-catalyzed polycondensation employing a ...
  • Walther, Frederick G.; Michael, Steven; Parenti, Ronald R.; Taylor, John A. (Society of Photo-optical Instrumentation Engineers, 2010-08)
    We present an overview of an air-to-ground laser communications demonstration performed at MIT Lincoln Laboratory. Error-free communication at 2.5 Gb/s was demonstrated along a 25-km slant path between a 1-in transmit ...
  • Jacks, Tyler E.; Sandy, Peter; Hoersch, Sebastian; Lander, Eric S.; Gupta, Piyush (Elsevier, 2009-07)
    Dysregulation of the phosphatidylinositol 3-kinase (PI3K) signaling pathway occurs frequently in human cancer. PTEN tumor suppressor or PIK3CA oncogene mutations both direct PI3K-dependent tumorigenesis largely through ...
  • Demory, Brice-Olivier (IOP Publishing, 2014-06)
    Exoplanet research focusing on the characterization of super-Earths is currently limited to the handful of targets orbiting bright stars that are amenable to detailed study. This Letter proposes to look at alternative ...
  • Shafia, Ehsan; Esposito, Serena; Manzoli, Maela; Chiesa, Mario; Tiberto, Paola; Barrera, Gabriele; Menard, Gabriel; Allia, Paolo; Garrone, Edoardo; Bonelli, Barbara; Freyria, Francesca Stefania (Springer Netherlands, 2015-08)
    Textural, magnetic and spectroscopic properties are reported of Fe-doped aluminosilicate nanotubes (NTs) of the imogolite type, IMO, with nominal composition (OH)[subscript 3]Al[subscript 2−x]Fe[subscript x]O[subscript ...
  • Chung, Jinwook; Hoke, William E.; Chumbes, Eduardo M.; Palacios, Tomas (Institute of Electrical and Electronics Engineers (IEEE), 2010-03)
    We report on a gate-recessed AlGaN/GaN high-electron mobility transistor (HEMT) on a SiC substrate with a record power-gain cutoff frequency (f[subscript max]). To achieve this high f[subscript max], we combined a low-damage ...
  • Harvey, Nicholas J. A. (Society for Industrial and Applied Mathematics, 2009-07)
    We present new algebraic approaches for two well-known combinatorial problems: nonbipartite matching and matroid intersection. Our work yields new randomized algorithms that exceed or match the efficiency of existing ...
  • Benjamini, Itai; Tessera, Romain; Finucane, Hilary Kiyo (Institute of Mathematical Statistics, 2013-04)
    Initial steps are presented towards understanding which finitely generated groups are almost surely generated as a semigroup by the path of a random walk on the group.
  • Post, Sarah; Vinet, Luc; Genest, Vincent (Springer US, 2016-03)
    The multivariate quantum q-Krawtchouk polynomials are shown to arise as matrix elements of “q-rotations” acting on the state vectors of many q-oscillators. The focus is put on the two-variable case. The algebraic interpretation ...
  • Polyanskiy, Yury; Hosseini Roozbehani, Hajir (Institute of Electrical and Electronics Engineers (IEEE), 2014-06)
    In information theory, structural system constraints are frequently described in the form of a directed acyclic graphical model (DAG). This paper addresses the question of classifying DAGs up to an isomorphism. By considering ...
  • Kim, MinJi; Medard, Muriel (Institute of Electrical and Electronics Engineers (IEEE), 2010-10)
    The deterministic wireless relay network model, introduced by Avestimehr et al., has been proposed for approximating Gaussian relay networks. This model, known as the ADT network model, takes into account the broadcast ...
  • Allegra, Michele; Hemmerling, Börge; Wan, Xiaoting; Cappellaro, Paola; Aiello, Clarice D. (Springer US, 2015-07)
    We present an algebraic framework to study the time-optimal synthesis of arbitrary unitaries in SU(2), when the control set is restricted to rotations around two non-parallel axes in the Bloch sphere. Our method bypasses ...
  • Medard, Muriel; Kim, MinJi; Koetter, Ralf; Barros, Joao (Institute of Electrical and Electronics Engineers, 2009-08)
    In this paper, we propose a scheme, called the algebraic watchdog for wireless network coding, in which nodes can detect malicious behaviors probabilistically, police their downstream neighbors locally using overheard ...
  • Kim, MinJi; Medard, Muriel; Barros, Joao (Institute of Electrical and Electronics Engineers (IEEE), 2011-11)
    We propose a secure scheme for wireless network coding, called the algebraic watchdog. By enabling nodes to detect malicious behaviors probabilistically and use overheard messages to police their downstream neighbors ...
  • Wilczek, Frank; Lee, Jae Hoon (American Physical Society, 2013-11)
    Motivated by the problem of identifying Majorana mode operators at junctions, we analyze a basic algebraic structure leading to a doubled spectrum. For general (nonlinear) interactions the emergent mode creation operator ...
  • Koo, Benjamin H. Y.; Simmons, Willard L.; Crawley, Edward F. (Institute of Electrical and Electronics Engineers, 2009-04)
    This paper represents system models as algebraic entities and formulates model transformation activities as algebraic operations. We call this modeling framework ldquoalgebra of systemsrdquo (AoS). To show that AoS can ...
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