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Browsing MIT Open Access Articles by Title

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  • Correa, David; Reichert, Steffen; Menges, Achim; Papadopoulou, Athina; Guberan, Christopher; Jhaveri, Nynika; Tibbits, Skylar (Mary Ann Liebert, Inc., 2015-09)
    Rapid advances in digital fabrication technologies and new materials development allow for direct control and programmability of physical material transformations. By utilizing multimaterial 3D printing technologies and ...
  • Krug, Dominik; Lüthi, Beat; Holzner, Markus; Tsinober, Arkady; Seybold, Hansjorg (Springer-Verlag, 2012-01)
    Genuine plane Couette flow is hard to realize experimentally, and no applications of modern spatially resolving measurement techniques have been reported for this flow so far. In order to resolve this shortcoming, we ...
  • Howland, Jonathan C.; Jensen, Frants H.; Tyack, Peter L.; Macfarlane, Nicholas Blair Wootton (Springer Berlin Heidelberg, 2015-02)
    Here, we describe a portable stereo camera system that integrates a GPS receiver, an attitude sensor and 3D stereo photogrammetry to rapidly estimate the position of multiple animals in space and time. We demonstrate the ...
  • Peacock, Thomas; Ghaemsaidi, Sasan John (Springer-Verlag, 2013-02)
    To date, experimental studies of internal wave velocity fields have been limited to two-dimensional investigations of planar or axisymmetric systems. Here, we present results of the first three-dimensional stereoscopic ...
  • Adib, Fadel M.; Kabelac, Zachary E.; Katabi, Dina; Miller, Robert C. (Association for Computing Machinery (ACM), 2014-04)
    This paper introduces WiTrack, a system that tracks the 3D motion of a user from the radio signals reflected off her body. It works even if the person is occluded from the WiTrack device or in a different room. WiTrack ...
  • Li, Jingshuang; Fehler, Michael; Yang, Dinghui; Huang, Xueyuan (Society of Exploration Geophysicists, 2014-12)
    Reliable 3D imaging is a required tool for developing models of complex geologic structures. Reverse time migration (RTM), as the most powerful depth imaging method, has become the preferred imaging tool because of its ...
  • Chen, Hung-Wen; Lim, Jinkang; Xu, Shanhui; Yang, Zhongmin; Chang, Guoqing; Kaertner, Franz X. (SPIE, 2014-09)
    Many applications require GHz femtosecond pulses with the center wavelength tunable over a broad range. Recently we have demonstrated a 3-GHz, femtosecond Yb-fiber laser system with >12-W average power using the pre-chirp ...
  • Berdichevsky, Alina; Nedelcu, Simona; Boulias, Konstantinos; Bishop, Nicholas A.; Guarente, Leonard Pershing; Horvitz, H. Robert (National Academy of Sciences, 2010-11)
    Studies of long-lived Caenorhabditis elegans mutants have identified several genes that function to limit lifespan, i.e., loss-of-function mutations in these genes promote longevity. By contrast, little is known about ...
  • Spies, Noah; Burge, Christopher B.; Bartel, David (Cold Spring Harbor Laboratory Press, 2013-09)
    Variation in protein output across the genome is controlled at several levels, but the relative contributions of different regulatory mechanisms remain poorly understood. Here, we obtained global measurements of decay and ...
  • Park, Sunghyun; Qazi, Masood; Peh, Li-Shiuan; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers (IEEE), 2013-03)
    Mesh NoCs are the most widely-used fabric in high-performance many-core chips today. They are, however, becoming increasingly power-constrained with the higher on-chip bandwidth requirements of high-performance SoCs. In ...
  • Paidimarri, Arun; Mercier, Patrick Philip; Chandrakasan, Anantha P.; Nadeau, Phillip (Institute of Electrical and Electronics Engineers (IEEE), 2012-06)
    A 2.4GHz TX in 65nm CMOS defines three channels using three high-Q FBARs and supports OOK, BPSK and MSK. The oscillators have -132dBc/Hz phase noise at 1MHz offset, and are multiplexed to an efficient resonant buffer. ...
  • Robinson, Julia M.; Tlais, Sami F.; Fong, Jennie; Danheiser, Rick Lane (Elsevier, 2011-09)
    A [4+4] annulation strategy for the synthesis of eight-membered carbocycles is reported that proceeds via a cascade involving two pericyclic processes. In the first step, the [4+2] cycloaddition of a conjugated enyne with ...
  • Zellem, Robert T.; Knutson, Heather A.; Griffith, Caitlin A.; Showman, Adam P.; Fortney, Jonathan J.; Cowan, Nicolas B.; Agol, Eric; Burrows, Adam; Charbonneau, David; Deming, Drake; Laughlin, Gregory; Langton, Jonathan; Lewis, Nicole (IOP Publishing, 2014-07)
    The hot Jupiter HD 209458b is particularly amenable to detailed study as it is among the brightest transiting exoplanet systems currently known (V-mag = 7.65; K-mag = 6.308) and has a large planet-to-star contrast ratio. ...
  • Sinangil, Mahmut Ersin; Verma, Naveen; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers, 2009-11)
    8T bit-cells hold great promise for overcoming device variability in deeply scaled SRAMs and enabling aggressive voltage scaling for ultra-low-power. This paper presents an array architecture and circuits with minimal ...
  • Hayton, D. J.; Kloosterman, J. L.; Ren, Y.; Gao, J. R.; Klapwijk, T. M.; Hu, Q.; Walker, C. K.; Reno, J. L.; Kao, T.-Y.; Hu, Qing (SPIE, 2014-07)
    We report on the performance of a high sensitivity 4.7 THz heterodyne receiver based on a NbN hot electron bolometer mixer and a quantum cascade laser (QCL) as local oscillator. The receiver is developed to observe the ...
  • Grulkowski, Ireneusz; Jayaraman, Vijaysekhar; Cable, Alex E.; Kraus, Martin Franz Georg; Hornegger, Joachim; Duker, Jay S.; Fujimoto, James G.; Liu, Jonathan Jaoshin; Potsaid, Benjamin M. (SPIE, 2013-03)
    Recent advances in swept-source / Fourier domain optical coherence tomography (SS-OCT) technology enable in vivo ultrahigh speed imaging, offering a promising technique for four-dimensional (4-D) imaging of the eye. Using ...
  • Levin, Anat; Hasinoff, Samuel W.; Green, Paul; Durand, Fredo; Freeman, William T. (Association for Computing Machinery, 2009-07)
    Depth of field (DOF), the range of scene depths that appear sharp in a photograph, poses a fundamental tradeoff in photography---wide apertures are important to reduce imaging noise, but they also increase defocus blur. ...
  • Stojanovic, Vladimir Marko; Kim, Byungsub (Institute of Electrical and Electronics Engineers, 2009-05)
    This paper presents a transceiver for fast and energy-efficient global on-chip communication, consisting of a nonlinear charge-injecting (CI) 3-tap transmit filter (TX) and a sampling receiver (RX) with transimpedance ...
  • Suntharalingam, Vyshnavi; Berger, Robert; Clark, Stewart; Knecht, Jeffrey M.; Messier, Andrew V.; Newcomb, Kevin L.; Rathman, Dennis D.; Slattery, Richard L.; Soares, Antonio M.; Stevenson, Charles; Warner, Keith; Young, Douglas J.; Ang, Lin Ping; Mansoorian, Barmak; Shaver, David C. (Institute of Electrical and Electronics Engineers, 2009-02)
    The dominant trend with conventional image sensors is toward scaled-down pixel sizes to increase spatial resolution and decrease chip size and cost. While highly capable chips, these monolithic image sensors devote substantial ...
  • Schattenburg, Mark Lee; Heilmann, Ralf K.; Chang, Chih-Hao; Ahn, Minseung; Padmore, Howard A.; Yashchuk, Valeriy V.; Gullikson, Eric M.; Salmassi, Farhad; Cambie, Rossana; Anderson, Erik H.; Voronov, Dmitriy L. (The International Society for Optical Engineering, 2009-09)
    We report on recent progress in developing diffraction gratings which can potentially provide extremely high spectral resolution of 10[superscript 5]-10[superscript 6] in the EUV and soft x-ray photon energy ranges. Such ...
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