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Browsing MIT Open Access Articles by Title

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  • Foley, Brendan; Dellaporta, Katerina; Sakellariou, Dimitris; Bingham, Brian S.; Camilli, Richard; Eustice, Ryan M.; Evagelistis, Dionysis; Ferrini, Vicki Lynn; Katsaros, Kostas; Kourkoumelis, Dimitris; Mallios, Aggelos; Micha, Paraskevi; Mindell, David A.; Roman, Christopher; Singh, Hanumant; Switzer, David S.; Theodoulou, Theotokis (The American School of Classical Studies at Athens, 2009-04)
    In 2005 a Greek and American interdisciplinary team investigated two shipwrecks off the coast of Chios dating to the 4th-century b.c. and the 2nd/1st century. The project pioneered archaeological methods of precision ...
  • Parker, Alex H.; Buie, Marc W.; Osip, David J.; Gwyn, Stephen D. J.; Holman, Matthew J.; Borncamp, David M.; Spencer, John R.; Benecchi, Susan D.; Binzel, Richard P.; DeMeo, Francesca E.; Fuentes, Cesar I.; Gay, Pamela L.; Kavelaars, J. J.; McLeod, Brian A.; Petit, Jean-Marc; Sheppard, Scott S.; Stern, S. Alan; Tholen, David J.; Trilling, David E.; Ragozzine, Darin A.; Wasserman, Lawrence H.; Fabbro, Sebastian; The Ice Hunters (IOP Publishing, 2013-03)
    We present the discovery of a long-term stable L5 (trailing) Neptune Trojan in data acquired to search for candidate trans-Neptunian objects for the New Horizons spacecraft to fly by during an extended post-Pluto mission. ...
  • Person, Michael J.; Bosh, Amanda S.; Levine, Stephen E.; Gulbis, Amanda A. S.; Zangari, A. M.; Zuluaga, Carlos Andres; Sallum, S.; Springmann, A. (IOP Publishing, 2013-08)
    On 2011 June 23, stellar occultations by both Pluto (this work) and Charon (future analysis) were observed from numerous ground stations as well as the Stratospheric Observatory for Infrared Astronomy (SOFIA). This first ...
  • Tikekar, Mehul; Huang, Chao-Tsung; Sze, Vivienne; Chandrakasan, Anantha P.; Juvekar, Chiraag Shashikant (Institute of Electrical and Electronics Engineers (IEEE), 2013-10)
    High Efficiency Video Coding, the latest video standard, uses larger and variable-sized coding units and longer interpolation filters than [H.264 over AVC] to better exploit redundancy in video signals. These algorithmic ...
  • Huang, Chao-Tsung; Tikekar, Mehul; Juvekar, Chiraag Shashikant; Sze, Vivienne; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers (IEEE), 2013-02)
    The latest video coding standard High Efficiency Video Coding (HEVC) provides 50% improvement in coding efficiency compared to H.264/AVC, to meet the rising demand for video streaming, better video quality and higher ...
  • Paidimarri, Arun; Mercier, Patrick P.; Chandrakasan, Anantha P.; Nadeau, Phillip (Institute of Electrical and Electronics Engineers (IEEE), 2013-01)
    A 2.4 GHz TX in 65 nm CMOS defines three channels using three high-Q FBARs and supports OOK, BPSK and MSK. The oscillators have -132 [dBc over Hz] phase noise at 1 MHz offset, and are multiplexed to an efficient resonant ...
  • Gupta, Amar (IEEE Computer Society, 2009-01)
    Collaborating centers in time zones six to eight hours apart can transfer work so that every center is working during the daytime. Although this concept avoids the hazards of night work, it requires careful planning and a ...
  • Rivers, Alec Rothmyer; Igarashi, Takeo; Durand, Fredo (Association for Computing Machinery (ACM), 2010-07)
    We present a way to bring cartoon objects and characters into the third dimension, by giving them the ability to rotate and be viewed from any angle. We show how 2D vector art drawings of a cartoon from different views can ...
  • Godoy, Philip A.; Chung, SungWon; Barton, Taylor W.; Perreault, David J.; Dawson, Joel L.; Perron, J. Taylor (Institute of Electrical and Electronics Engineers (IEEE), 2011-01)
    We present a high-efficiency transmitter based on asymmetric multilevel outphasing (AMO). AMO transmitters improve their efficiency over LINC (linear amplification using nonlinear components) transmitters by switching the ...
  • Weinstein, Dana; Popa, Laura Cornelia (Institute of Electrical and Electronics Engineers (IEEE), 2013-07)
    A 2D electron gas (2DEG) interdigitated transducer (IDT) in Gallium Nitride (GaN) resonators is introduced and demonstrated. This metal-free transduction does not suffer from the loss mechanisms associated with more commonly ...
  • Emelianova, E.V.; Athanasopoulos, S.; Silbey, Robert J.; Beljonne, D. (American Physical Society, 2010-05)
    A number of organic crystals show anisotropic excitonic couplings, with weak interlayer interactions between molecules that are more strongly coupled within the layers. The resulting energy carriers are intralayer 2D ...
  • Meyer, Aaron Samuel; Hughes-Alford, Shannon Kay; Kay, Jennifer Elizabeth; Castillo, Amalchi; Wells, Alan; Gertler, Frank; Lauffenburger, Douglas A. (Rockefeller University Press, The, 2012-06)
    Growth factor–induced migration is a critical step in the dissemination and metastasis of solid tumors. Although differences in properties characterizing cell migration on two-dimensional (2D) substrata versus within ...
  • Shin, David; Mueller, Peter (International Union of Crystallography (IUCr), 2012-08)
    The structure of ortho-vanillin, C[subscript 8]H[subscript 8]O[subscript 3], has been revisited with modern methods and at low temperature (100 K). The previous structure [Iwasaki et al. (1976). Acta Cryst. B32, 1264-1266] ...
  • Cushing, Michael C.; Looper, Dagny; Burgasser, Adam J.; Kirkpatrick, J. Davy; Faherty, Jacqueline; Cruz, Kelle L.; Sweet, Anne; Sanderson, Robyn Ellyn (American Astronomical Society, 2009-04)
    We present the serendipitous discovery of an L subdwarf in the Two Micron All Sky Survey (2MASS) J06164006–6407194, in a search of the 2MASS for T dwarfs. Its spectrum exhibits features indicative of both a cool and metal ...
  • Gelino, Christopher R.; Burgasser, Adam J. (IOP Publishing, 2010-05)
    We identify the L dwarf 2MASS J20261584–2943124 as an unresolved spectral binary, based on low-resolution, near-infrared spectroscopy from IRTF/SpeX. The data reveal a peculiar absorption feature at 1.6 μm, previously noted ...
  • Doughty, David M.; Hunter, R. C.; Summons, Roger Everett; Newman, Dianne K. (John Wiley & Sons, Inc., 2009-10)
    2-Methylhopanes, molecular fossils of 2-methylbacteriohopanepolyol (2-MeBHP) lipids, have been proposed as biomarkers for cyanobacteria, and by extension, oxygenic photosynthesis. However, the robustness of this interpretation ...
  • Dong, Hongping; Chang, David C.; Ho Chia Hua, Maggie; Lim, Siew Pheng; Chionh, Yok Hian; Hia, Fabian; Lee, Yie Hou; Kukkaro, Petra; Lok, Shee-Mei; Dedon, Peter C.; Shi, Pei-Yong (Public Library of Science, 2012-04)
    RNA modification plays an important role in modulating host-pathogen interaction. Flavivirus NS5 protein encodes N-7 and 2′-O methyltransferase activities that are required for the formation of 5′ type I cap (m[superscript ...
  • Do, Loi H.; Lippard, Stephen J. (American Chemical Society (ACS), 2009-10)
    A series of 2-phenoxypyridyl and 2-phenoxyimino ligands, H[subscript 2]L[superscript R,R′] [2,2′-(5,5′-(1,2-phenylenebis(ethyne-2,1-diyl))bis(pyridine-5,2-diyl))diphenol, where R = H, Me, or t-Bu, and R′ = H or Ph] and ...
  • Lunnan, Ragnhild; Casey, Andrew R.; Norris, John E.; Wyse, Rosemary F. G.; Gilmore, Gerard; Frebel, Anna L. (IOP Publishing, 2013-06)
    We present a chemical abundance analysis of 300S-1, the brightest likely member star of the 300 km s[superscript –1] stream near the faint satellite galaxy Segue 1. From a high-resolution Magellan/MIKE spectrum, we determine ...
  • Kim, Dae-Hyun; del Alamo, Jesus A. (Institute of Electrical and Electronics Engineers, 2010-07)
    We present 30-nm InAs pseudomorphic HEMTs (PHEMTs) on an InP substrate with record fT characteristics and well-balanced fT and f[subscript max] values. This result was obtained by improving short-channel effects through ...
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