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Browsing MIT Open Access Articles by Title

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  • Imai, Kosuke; Tingley, Dustin; Yamamoto, Teppei (Wiley Blackwell, 2012-11)
    Experimentation is a powerful methodology that enables scientists to establish causal claims empirically. However, one important criticism is that experiments merely provide a black box view of causality and fail to identify ...
  • Akono, Ange-Therese; Randall, Nicholas X.; Ulm, Franz-Josef (Cambridge University Press (Materials Research Society), 2012-01)
    This article presents a novel microscratch technique for the determination of the fracture toughness of materials from scratch data. While acoustic emission and optical imaging devices provide quantitative evidence of ...
  • Lukas, K. C.; Liu, W. S.; Joshi, G.; Zebarjadi, Mona; Dresselhaus, Mildred (American Physical Society, 2012-05)
    Nanostructuring has been shown to be an effective approach to reduce the lattice thermal conductivity and improve the thermoelectric figure of merit. Because the experimentally measured thermal conductivity includes ...
  • Johnson, Jeremy A.; Maznev, Alexei; Eliason, Jeffrey Kristian; Minnich, Austin; Collins, Kimberlee C.; Chen, Gang; Cuffe, John; Kehoe, Timothy; Sotomayor Torres, Clivia M.; Nelson, Keith Adam (Cambridge University Press/Materials Research Society, 2011-08)
    The length-scales at which thermal transport crosses from the diffusive to ballistic regime are of much interest particularly in the design and improvement of nano-structured materials. In this work, we demonstrate that ...
  • Stewart, Frank J.; Dalsgaard, Tage; Young, Curtis Robert, III; Thamdrup, Bo; Revsbech, Niels Peter; Ulloa, Osvaldo; DeLong, Edward; Canfield, Don E. (Public Library of Science, 2012-05)
    Sequencing of microbial community RNA (metatranscriptome) is a useful approach for assessing gene expression in microorganisms from the natural environment. This method has revealed transcriptional patterns in situ, but ...
  • Cheaito, Ramez; Duda, John C.; Beechem, Thomas E.; Hattar, Khalid; Ihlefeld, Jon F.; Medlin, Douglas L.; Rodriguez, Mark A.; Campion, Michael John; Piekos, Edward S.; Hopkins, Patrick E. (American Physical Society, 2012-11)
    We experimentally investigate the role of size effects and boundary scattering on the thermal conductivity of silicon-germanium alloys. The thermal conductivities of a series of epitaxially grown Si[subscript 1-x] Ge[subscript ...
  • Magesan, Easwar; Cappellaro, Paola (American Physical Society, 2013-08)
    Efficient methods for characterizing the performance of quantum measurements are important in the experimental quantum sciences. Ideally, one requires both a physically relevant distinguishability measure between measurement ...
  • Sears, J.; Bader, Andrew; Granetz, Robert S.; Parker, Ronald R.; Bonoli, Paul T.; Hutchinson, Ian H.; Wukitch, Stephen James (IOP Publishing, 2012-09)
    Ion cyclotron resonance heating is the primary auxiliary heating on the Alcator C-Mod tokamak and is commonly used on other devices, and is planned for use on ITER. The RF-power density on C-Mod is above 5 MW m−3 providing ...
  • Cardin, Michel-Alexandre; Kolfschoten, Gwendolyn L.; Frey, Daniel; de Neufville, Richard; de Weck, Olivier L.; Geltner, David M. (INCOSE-International Council on Systems Engineering, 2012-07)
    This study presents an experimental methodology to measure how concept generation procedures can affect the anticipated lifecycle performance of engineering systems design concepts. The methodology is based on objective ...
  • Yan, Chenhui; Liu, Junwei; Zang, Yunyi; Wang, Jianfeng; Wang, Zhenyu; Wang, Peng; Zhang, Zhi-Dong; Wang, Lili; Ma, Xucun; Ji, Shuaihua; He, Ke; Fu, Liang; Duan, Wenhui; Xue, Qi-Kun; Chen, Xi (American Physical Society, 2014-05)
    The surface of a topological crystalline insulator (TCI) carries an even number of Dirac cones protected by crystalline symmetry. We epitaxially grew high-quality Pb[subscript 1−x]Sn[subscript x]Te(111) films and investigated ...
  • Buongiorno, Jacopo; Hu, Lin-Wen; Gerardi, Craig; McKrell, Thomas J. (American Society of Mechanical Engineers, 2008-08)
    This paper presents the results of an experimental study on nucleate pool boiling. Experiments were performed using vapor-deposited thin films which were electrically heated. High-speed infrared and visible cameras ...
  • Zhang, Jingfu; Moussa, Osama; Laflamme, Raymond; Gangloff, Dorian (American Physical Society (APS), 2011-09)
    More than ten years ago a first step toward quantum error correction (QEC) was implemented [ Phys. Rev. Lett. 81 2152 (1998)]. The work showed there was sufficient control in nuclear magnetic resonance to implement QEC, ...
  • De Martini, Francesco; Giovannetti, Vittorio; Lloyd, Seth; Maccone, Lorenzo; Nagali, Eleonora; Sansoni, Linda; Sciarrino, Fabio (American Physical Society, 2009-07)
    The quantum private query is a quantum cryptographic protocol to recover information from a database, preserving both user and data privacy: the user can test whether someone has retained information on which query was ...
  • Huber, M. G.; Arif, M.; Pushin, D. A.; Cory, David G. (American Physical Society (APS), 2011-10)
    A decoherence-free subspace (DFS) is an important class of quantum-error-correcting (QEC) codes that have been proposed for fault-tolerant quantum computation. The applications of QEC techniques, however, are not limited ...
  • Chowdhary, Girish; Wu, Tongbin; Ure, Nazim Kemal; Cutler, Mark Johnson; How, Jonathan P. (American Institute of Aeronautics and Astronautics, 2012-08)
    Commonly used Proportional-Integral-Derivative based UAV flight controllers are often seen to provide adequate trajectory-tracking performance only after extensive tuning. The gains of these controllers are tuned to ...
  • Ghim, Y.-c.; Schekochihin, A. A.; Field, A. R.; Abel, I. G.; Barnes, M.; Colyer, G.; Cowley, S. C.; Parra Diaz, Felix Ignacio; Dunai, D.; Zoletnik, S.; MAST Team (American Physical Society, 2013-04)
    Beam emission spectroscopy (BES) measurements of ion-scale density fluctuations in the MAST tokamak are used to show that the turbulence correlation time, the drift time associated with ion temperature or density gradients, ...
  • Balewski, Jan T.; Betancourt, M. J.; Corliss, Ross; Hays-Wehle, James Prewitt; Leight, William Axel; Redwine, Robert P.; Seele, J.; Steadman, Stephen G.; van Nieuwenhuizen, Gerrit Jan (American Physical Society, 2013-04)
    Jet-medium interactions are studied via a multihadron correlation technique (called “2+1”), where a pair of back-to-back hadron triggers with large transverse momentum is used as a proxy for a di-jet. This work extends the ...
  • Balewski, Jan T.; Betancourt, Michael Joseph; Corliss, Ross Cameron; Hays-Wehle, James Prewitt; Leight, William Axel; Milner, Richard G.; Redwine, Robert P.; Steadman, Stephen G.; Surrow, Bernd; van Nieuwenhuizen, Gerrit Jan; Walker, Matthew H. (American Physical Society, 2011-06)
    We report first results from an analysis based on a new multi-hadron correlation technique, exploring jet-medium interactions and di-jet surface emission bias at the BNL Relativistic Heavy Ion Collider (RHIC). Pairs of ...
  • Young, Laurence Retman; Goel, Rahul; Christou, George Alexander; Son, S. F.; Alley, M. D. (American Institute of Physics, 2009-06)
    The objective of this experimental study is to compare the effects of various materials obstructing the flow of a blast wave and the ability of the given material to reduce the damage caused by the blast. Several methods ...
  • Park, R.J.; McKrell, Thomas J.; Buongiorno, Jacopo; Hu, Lin-Wen; Dewitt, Gregory (Korean Nuclear Society, 2013-06)
    The Critical Heat Flux (CHF) of water with dispersed alumina nanoparticles was measured for the geometry and flow conditions relevant to the In-Vessel Retention (IVR) situation which can occur during core melting sequences ...
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