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Browsing MIT Open Access Articles by Title

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  • Raskar, Ramesh; Agrawal, Amit; Chang, Ju Yong (Institute of Electrical and Electronics Engineers, 2009-08)
    We present a system for fast model-based segmentation and 3D pose estimation of specular objects using appearance based specular features. We use observed (a) specular reflection and (b) specular flow as cues, which are ...
  • 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 ...
  • 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 P.; 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. ...
  • 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 ...
  • Grulkowski, Ireneusz; Jayaraman, Vijaysekhar; Cable, Alex E.; Kraus, Martin F.; 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 ...
  • del Alamo, Jesus A.; Kim, Dae-Hyun; Chen, Peter; Ha, Wonill; Urteaga, Miguel; Brar, B. (Institute of Electrical and Electronics Engineers (IEEE), 2010-12)
    We have demonstrated 50-nm enhancement-mode (E-mode) In[subscript 0.7]Ga[subscript 0.3]As PHEMTs with f[subscript max] in excess of 1 THz. The devices feature a Pt gate sinking process to effectively thin down the In[subscript ...
  • Qazi, Masood; Stawiasz, Kevin; Chang, Leland; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers, 2010-02)
    An 8T SRAM fabricated in 45 nm SOI CMOS exhibits voltage scalable operation from 1.2 V down to 0.57 V with access times from 400 ps to 3.4 ns. Timing variation and the challenge of low-voltage operation are addressed with ...
  • Gehring, Mary; Erdmann, Robert Michael; Souza, Amanda L.; Clish, Clary (Genetics Society of America, The, 2014-11)
    5-Hydroxymethylcytosine (5-hmC) is an intermediate in active demethylation in metazoans, as well as a potentially stable epigenetic mark. Previous reports investigating 5-hydroxymethylcytosine in plants have reached ...
  • Kim, Tae-Woo; Kim, Dae-Hyun; del Alamo, Jesus A. (Institute of Electrical and Electronics Engineers (IEEE), 2010-12)
    We have developed a new self-aligned gate technology for InGaAs High Electron Mobility Transistors with non-alloyed Mo-based ohmic contacts and a very low parasitic capacitance gate design. The new process delivers a contact ...
  • Verma, Naveen; Ramadass, Yogesh Kumar; Kwong, Joyce; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers, 2008-12)
    Aggressive supply voltage scaling to below the device threshold voltage provides significant energy and leakage power reduction in logic and SRAM circuits. Consequently, it is a compelling strategy for energy-constrained ...
  • Daly, Denis C.; Chandrakasan, Anantha P. (Institute of Electrical and Electronics Engineers, 2009-08)
    A 6-bit highly digital flash ADC is implemented in a 0.18 mum CMOS process. The ADC operates in the subthreshold regime down to 200 mV and employs comparator redundancy and reconfigurability to improve linearity. The ...
  • Martini, Gabriella; Taylor, Washington (Springer-Verlag, 2015-06)
    We carry out a systematic study of a class of 6D F-theory models and associated Calabi-Yau threefolds that are constructed using base surfaces with a generalization of toric structure. In particular, we determine all smooth ...
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