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Browsing MIT Open Access Articles by Title

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  • Xia, Cassandra T.; Maes, Patricia (Association for Computing Machinery, 2013-03)
    Fifty years ago, Doug Engelbart created a conceptual framework for augmenting human intellect in the context of problem-solving. We expand upon Engelbart's framework and use his concepts of process hierarchies and artifact ...
  • Gilbertson, Eric W.; Hover, Franz S.; Arellano, Jose; Freeman, Bryan (ASME International, 2011-06)
    Gas-lifted oil wells are susceptible to failure through malfunction of gas lift valve assemblies (GLV). One failure mode occurs when the GLV check valve fails and product passes into the well annulus, potentially reaching ...
  • Zheng, Lizhong; Huang, Shao-Lun; Blankenship, Yufei (Institute of Electrical and Electronics Engineers (IEEE), 2010-08)
    In information theory, in order to maximize the total throughput, it is required that the codebook has an empirical distribution that maximizes the mutual information over the channel. In coding theory, however, most codes ...
  • Hassan, Gimba; Perreault, David J.; Keim, Thomas A. (Institute of Electrical and Electronics Engineers (IEEE), 2005-01)
    The push to introduce dual-voltage (42 V/14 V) automotive electrical systems necessitates power generation solutions capable of supplying power to multiple outputs. A number of approaches for implementing dual-voltage ...
  • Zheng, H.; Ooi, B. H.; Cho, Wonjoon; Dao, M. H.; Tkalich, P.; Patrikalakis, Nicholas M. (American Institute of Physics, 2010-05)
    Due to the highly non-linear and dynamical nature of oceanic phenomena, the predictive capability of various ocean models depends on the availability of operational data. A practical method to improve the accuracy of the ...
  • Sievers, Martin; Lienhard, John H. (Taylor & Francis, 2013-01)
    Flat-plate heat exchangers are examined for use as dehumidifiers in humidification–dehumidification (HDH) desalination systems. The temperature and humidity ratio differences that drive mass transfer are considerably higher ...
  • Vaucelle, Catherine Nicole; Bonanni, Leonardo Amerigo; Ishii, Hiroshi (Association for Computing Machinery, 2009-04)
    Touch is fundamental to our emotional well-being. Medical science is starting to understand and develop touch-based therapies for autism spectrum, mood, anxiety and borderline disorders. Based on the most promising touch ...
  • Pejawar Gaddy, Sharmila; Kovacs, J.; Barouch, D.; Chen, B.; Irvine, Darrell J. (BioMed Central Ltd., 2012-09)
    Background: Immunization strategies that elicit antibodies capable of neutralizing diverse strains of the virus will likely be an important part of a successful vaccine against HIV. The envelope trimer is the only ...
  • Demkowicz, Michael J.; Misra, A.; Zhang, X.; Hoagland, R. G.; Nastasi, M. (Cambridge University Press, 2009-01)
    The combination of high strength and high radiation damage tolerance in nanolaminate composites can be achieved when the individual layers in these composites are only a few nanometers thick and therefore these materials ...
  • Kimerling, Lionel C.; Hu, Juejun; Lin, Shiyun; Crozier, Kenneth (Institute of Electrical and Electronics Engineers, 2009-08)
    We design and numerically simulate a photonic crystal waveguide cavity with a nanoslot structure for single nanoparticle trapping. A 135times enhancement of optical gradient trapping force compared to plain waveguide ...
  • Birge, Jonathan R.; Kartner, Franz X. (Institute of Electrical and Electronics Engineers, 2009-08)
    The optimization of phase distortion spectral power density is proposed as an alternative to GDD minimization of ultrafast cavity mirrors. This criterion is shown to minimize the detuning of cavity resonances from a uniform comb.
  • Rhodius, Virgil A; Sharon, Brian D; Orlova, Ekaterina; Tabakh, Hannah; Burkhardt, David H; Clancy, Kevin; Peterson, Todd C; Gross, Carol A; Segall-Shapiro, Thomas H.; Ghodasara, Amar Navin; Voigt, Christopher A. (Nature Publishing Group, 2013-10)
    Cells react to their environment through gene regulatory networks. Network integrity requires minimization of undesired crosstalk between their biomolecules. Similar constraints also limit the use of regulators when building ...
  • Men, H.; Nguyen, Ngoc Cuong; Freund, Robert Michael; Lim, K. M.; Parrilo, Pablo A.; Peraire, Jaime (American Physical Society, 2011-04)
    We present and use an algorithm based on convex conic optimization to design two-dimensional photonic crystals with large absolute band gaps. Among several illustrations we show that it is possible to design photonic ...
  • Sievers, Martin; Lienhard, John H. (Taylor & Francis, 2014-04)
    A two-dimensional numerical model of a plate-fin tube heat exchanger for use as a dehumidifier in a humidification-dehumidification (HDH) desalination systems is developed, because typical heating, ventilating, and air ...
  • Chookajorn, Tongjai; Murdoch, Heather Ann; Schuh, Christopher A. (American Association for the Advancement of Science (AAAS), 2012-08)
    Nanostructured metals are generally unstable; their grains grow rapidly even at low temperatures, rendering them difficult to process and often unsuitable for usage. Alloying has been found to improve stability, but only ...
  • Greco, Joseph Anthony, Jr. (The International Society for Optical Engineering, 2009-08)
    The forward error correction (FEC) and interleaver realizations used in a 5.4 km horizontal-path link experiment incorporated several unique elements that were specifically tailored to address turbulence-induced fading. ...
  • Lazic, Predrag; Atodiresei, Nicolae; Brede, Jens; Caciuc, Vasile; Hoffmann, Germar; Wiesendanger, Roland; Blügel, Stefan (American Physical Society, 2010-08)
    By means of ab initio calculations and spin-polarized scanning tunneling microscopy experiments the creation of a complex energy dependent magnetic structure with a tailored spin-polarized interface is demonstrated. We ...
  • Kayser, Veysel; Voynov, Vladimir; Chennamsetty, Naresh; Trout, Bernhardt L.; Helk, Bernhard (United States National Academy of Sciences, 2009-05)
    Therapeutic proteins such as antibodies constitute the most rapidly growing class of pharmaceuticals for use in diverse clinical settings including cancer, chronic inflammatory diseases, kidney transplantation, cardiovascular ...
  • Gao, Hanhong; Zhang, Baile; Johnson, Steven G.; Barbastathis, George (Optical Society of America, 2012-01)
    We design an all–dielectric Luneburg lens as an adiabatic space–variant lattice explicitly accounting for finite film thickness. We describe an all–analytical approach to compensate for the finite height of subwavelength ...
  • Romano, J. J.; Hernley, Lauren R.; Bearrick, Elizabeth N.; Tanenbaum, Laura Melanie; Thomas, Marcel A.; Toussaint, Teddy Antoine; Hanumara, Nevan Clancy; Slocum, Alexander H.; Lopez, Sofia Alejandra (Copernicus GmbH, 2014-01)
    During interventional ultrasound-guided procedures, sterility is maintained by covering the transducer head and cord with a sterile sheath. The current sheathing technique is cumbersome, requires an assistant to complete, ...
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