Browsing MIT Open Access Articles by Title
Now showing items 16611-16630 of 55750
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Experimental measurements of ICRF minority-heated fast-ion distributions on Alcator C-Mod
(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 ... -
An Experimental Methodology to Evaluate Concept Generation Procedures Based on Quantitative Lifecycle Performance
(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 ... -
Experimental Observation of Dirac-like Surface States and Topological Phase Transition in Pb[subscript 1-x]Sn[subscript x]Te(111) Films
(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 ... -
Experimental Observation of Large Chern Numbers in Photonic Crystals
(American Physical Society, 2015-12)Despite great interest in the quantum anomalous Hall phase and its analogs, all experimental studies in electronic and bosonic systems have been limited to a Chern number of one. Here, we perform microwave transmission ... -
Experimental Observation of Superscattering
(American Physical Society, 2019-02)Superscattering, induced by degenerate resonances, breaks the fundamental single-channel limit of the scattering cross section of subwavelength structures; in principle, an arbitrarily large total cross section can be ... -
Experimental observation of the dynamic micro-and macro-layer during pool boiling
(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 ... -
Experimental observation of Weyl points
(American Association for the Advancement of Science (AAAS), 2015-07)The massless solutions to the Dirac equation are described by the so-called Weyl Hamiltonian. The Weyl equation requires a particle to have linear dispersion in all three dimensions while being doubly degenerate at a single ... -
An experimental platform for pulsed-power driven magnetic reconnection
(AIP Publishing, 2018)We describe a versatile pulsed-power driven platform for magnetic reconnection experiments, based on the exploding wire arrays driven in parallel [Suttle et al., Phys. Rev. Lett. 116, 225001 (2016)]. This platform produces ... -
An Experimental Platform for Surface Embedded SMAs in Morphing Applications
(Trans Tech Publications, 2017-07)This article will address the modeling and control of surface embedded shape memory alloys (SMAs) for the camber modification of a hybrid morphing airfoil. An analytical model will be derived. The results of this models ... -
Experimental Preservation of Muscle Tissue in Quartz Sand and Kaolinite
(Society for Sedimentary Geology, 2019-09)Siliciclastic sediments of the Ediacaran Period contain exceptionally preserved fossils of macroscopic organisms, including three-dimensional casts and molds commonly found in sandstones and siltstones and some two-dimensional ... -
An experimental program with high duty-cycle polarized and unpolarized positron beams at Jefferson Lab
(Springer Berlin Heidelberg, 2021-08-28)Abstract Positron beams, both polarized and unpolarized, are identified as important ingredients for the experimental programs at the next generation of lepton accelerators. In the context of the hadronic ... -
Experimental quantum error correction with high fidelity
(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, ... -
Experimental quantum fingerprinting with weak coherent pulses
(Nature Publishing Group, 2015-10)Quantum communication holds the promise of creating disruptive technologies that will play an essential role in future communication networks. For example, the study of quantum communication complexity has shown that quantum ... -
Experimental quantum private queries with linear optics
(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 ... -
Experimental quantum speed-up in reinforcement learning agents
(Springer Science and Business Media LLC, 2021)© 2021, The Author(s), under exclusive licence to Springer Nature Limited. As the field of artificial intelligence advances, the demand for algorithms that can learn quickly and efficiently increases. An important paradigm ... -
Experimental Realization of Decoherence-Free Subspace in Neutron Interferometry
(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 ... -
Experimental Results of Concurrent Learning Adaptive Controllers
(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 ... -
Experimental Setup to Characterize Shift Time for High Performance Hybrid Transmissions
(American Society of Mechanical Engineers, 2018-08)Hybrid vehicles are increasingly common due to fuel efficiency regulations in place worldwide. High performance hybrids have typically been designed with a focus on improving performance, rather than the combination of ... -
Experimental Signatures of Critically Balanced Turbulence in MAST
(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, ... -
Experimental studies of di-jet survival and surface emission bias in Au plus Au collisions via angular correlations with respect to back-to-back leading hadrons
(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 ...
