Now showing items 31045-31064 of 31975

    • V[subscript OC] enhancement in polymer solar cells with isobenzofulvene–C[subscript 60] adducts 

      Han, Ggoch Ddeul; Maurano, Andrea; Weis, Jonathan Garrett; Bulovic, Vladimir; Swager, Timothy M (Elsevier, 2016-01)
      We report the use of isobenzofulvene–C[subscript 60] adducts in bulk heterojunction organic solar cells, synthesized via the [4 + 2] cycloaddition of C[subscript 60] with an in situ generated isobenzofulvene intermediate. ...
    • Vacancy Ordering in O3-Type Layered Metal Oxide Sodium-Ion Battery Cathodes 

      Ong, Shyue Ping; Richards, William Davidson; Ceder, Gerbrand; Toumar, Alexandra Jeanne; Dacek, Stephen Thomas (American Physical Society, 2015-12)
      Current state-of-the-art Na-ion battery cathodes are selected from the broad chemical space of layered first-row transition-metal (TM) oxides. Unlike their lithium-ion counterparts, seven first-row layered TM oxides can ...
    • Vaccine delivery with microneedle skin patches in nonhuman primates 

      Li, Adrienne Victoria; Abbink, Peter; Liu, Jinyan; Li, Hualin; Stanley, Kelly A.; e.a. (Nature Publishing Group, 2013-12)
      Transcutaneous drug delivery from planar skin patches is effective for small-molecule drugs and skin-permeable vaccine adjuvants. However, to achieve efficient delivery of vaccines and other macromolecular therapeutics ...
    • Vacuum spin squeezing 

      Hu, Jiazhong; Chen, Wenlan; Vendeiro, Zachary Michael; Urvoy, Alban Joseph; Braverman, Boris; e.a. (American Physical Society, 2017-11)
      We investigate the generation of entanglement (spin squeezing) in an optical-transition atomic clock through the coupling to an optical cavity in its vacuum state. We show that if each atom is prepared in a superposition ...
    • A Vacuum-driven Origami “Magic-ball” Soft Gripper 

      Diaz, Evelin Villegas; Wood, Robert J.; Stampfli, John J.; Li, Shuguang; Xu, Helen; e.a. (Institute of Electrical and Electronics Engineers (IEEE), 2019-05)
      Soft robotics has yielded numerous examples of soft grippers that utilize compliance to achieve impressive grasping performances with great simplicity, adaptability, and robustness. Designing soft grippers with substantial ...
    • Vacuum-Induced Transparency 

      Chen, Wenlan; Landig, Renate; Vuletic, Vladan; Tanji-Suzuki, Haruka; Simon, Jonathan (American Association for the Advancement of Science (AAAS), 2011-08)
      Photons are excellent information carriers but normally pass through each other without consequence. Engineered interactions between photons would enable applications as varied as quantum information processing and simulation ...
    • Valence Bonds in Random Quantum Magnets: Theory and Application to 

      Senthil, T.; Kimchi, Itamar; Nahum, Adam (American Physical Society, 2018-07)
      We analyze the effect of quenched disorder on spin-1/2 quantum magnets in which magnetic frustration promotes the formation of local singlets. Our results include a theory for 2D valence-bond solids subject to weak bond ...
    • Valid Orderings of Real Hyperplane Arrangements 

      Stanley, Richard P (Springer US, 2015-04)
      Given a real finite hyperplane arrangement A and a point p not on any of the hyperplanes, we define an arrangement vo(A,p), called the valid order arrangement, whose regions correspond to the different orders in which a ...
    • Valid Post-Selection and Post-Regularization Inference: An Elementary, General Approach 

      Chernozhukov, Victor; Chernozhukov, Victor V (Annual Reviews, 2015-08)
      We present an expository, general analysis of valid post-selection or post-regularization inference about a low-dimensional target parameter in the presence of a very high-dimensional nuisance parameter that is estimated ...
    • Valid Two-Step Identification-Robust Confidence Sets for GMM 

      Andrews, Isaiah; Andrews, Isaiah Smith (MIT Press, 2017-06)
      In models with potentially weak identification, researchers often decide whether to report a robust confidence set based on an initial assessment of model identification. Two-step procedures of this sort can generate large ...
    • Validated near-atomic resolution structure of bacteriophage epsilon15 derived from cryo-EM and modeling 

      Baker, Matthew L.; Hryc, Corey F.; Zhang, Qinfen; Wu, Weimin; Jakana, Joanita; e.a. (National Academy of Sciences (U.S.), 2013-07)
      High-resolution structures of viruses have made important contributions to modern structural biology. Bacteriophages, the most diverse and abundant organisms on earth, replicate and infect all bacteria and archaea, making ...
    • Validating a Method for Turbocharging Single Cylinder Four Stroke Engines 

      Buchman, Michael R.; Winter, Amos G. (ASME International, 2016-08)
      This paper presents a method for turbocharging single cylinder four stroke internal combustion engines, an experimental setup used to test this method, and the results from this experiment. A turbocharged engine has better ...
    • Validating Antimetastatic Effects of Natural Products in an Engineered Microfluidic Platform Mimicking Tumor Microenvironment 

      Niu, Yiming; Bai, Jing; Wang, Yitao; Wang, Chunming; Kamm, Roger Dale (American Chemical Society (ACS), 2014-02)
      Development of new, antimetastatic drugs from natural products has been substantially constrained by the lack of a reliable in vitro screening system. Such a system should ideally mimic the native, three-dimensional (3D) ...
    • Validating Bayesian truth serum in large-scale online human experiments 

      Pickard, Galen; Frank, Morgan Ryan; Cebrian, Manuel; Rahwan, Iyad (Public Library of Science, 2017-05)
      This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source ...
    • Validating gravitational-wave detections: The Advanced LIGO hardware injection system 

      Biwer, C.; Barker, D.; Batch, J. C.; Betzwieser, J.; Fisher, R. P.; e.a. (American Physical Society, 2017-03)
      Hardware injections are simulated gravitational-wave signals added to the Laser Interferometer Gravitational-wave Observatory (LIGO). The detectors’ test masses are physically displaced by an actuator in order to simulate ...
    • Validating Transcripts with Probes and Imaging Technology 

      Itzkovitz, Shaul Shalev; van Oudenaarden, Alexander (Nature Publishing Group, 2011-03)
      High-throughput gene expression screens provide a quantitative picture of the average expression signature of biological samples. However, the analysis of spatial gene expression patterns with single-cell resolution requires ...
    • Validating vignette and conjoint survey experiments against real-world behavior 

      Hainmueller, Jens; Hangartner, Dominik; Yamamoto, Teppei (National Academy of Sciences (U.S.), 2015-02)
      Survey experiments, like vignette and conjoint analyses, are widely used in the social sciences to elicit stated preferences and study how humans make multidimensional choices. However, there is a paucity of research on ...
    • Validation and application of an ensemble Kalman filter in the Selat Pauh of Singapore 

      Wei, Jun; Rizzoli, Paola M. (Springer, 2009-12)
      The effectiveness of an ensemble Kalman filter (EnKF) is assessed in the Selat Pauh of Singapore using observing system simulation experiment. Perfect model experiments are first considered. The perfect model experiments ...
    • Validation and Initial Characterization of the Long-period Planet Kepler-1654 b 

      Beichman, C. A.; Giles, H. A. C.; Akeson, R.; Ciardi, D.; Christiansen, J.; e.a. (American Astronomical Society, 2018-03-20)
      Fewer than 20 transiting Kepler planets have periods longer than one year. Our early search of the Kepler light curves revealed one such system, Kepler-1654b (originally KIC 8410697b), which shows exactly two transit events ...
    • Validation and refinement of gene-regulatory pathways on a network of physical interactions 

      Yeang, Chen-Hsiang, 1969-; Mak, Craig; McCuine, Scott; Workman, Christopher; Ideker, Trey; e.a. (BioMed Central Ltd, 2005-07)
      As genome-scale measurements lead to increasingly complex models of gene regulation, systematic approaches are needed to validate and refine these models. Towards this goal, we describe an automated procedure for prioritizing ...