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Displaying 15976 - 16000 of 74256

Forbidden Phonon: Dynamical Signature of Bond Symmetry Breaking in the Iron Chalcogenides

September 1, 2016
Author(s)
David M. Fobes, Igor A. Zaliznyak, John M. Tranquada, Zhijun Xu, Genda D. Gu, Xu-Gang He, Wei Ku, Yang Zhao, Masaaki Matsuda, V. Ovidiu Garlea, Barry Winn
Investigation of the inelastic neutron scattering spectra in Fe 1+yTe 1-xSe x near a signature wave vector Q = (1,0,0) for the bond-order wave (BOW) formation in parent compound Fe 1+yTe reveals an acoustic-phonon-like dispersion present in all structural

Guest Editors Introduction: Cybersecurity or Privacy

September 1, 2016
Author(s)
Irena V. Bojanova, Jeffrey M. Voas
Cybersecurity is a major concern. Governments’, industry, and even hospitals’ IT infrastructure is being penetrated with increasing frequency and sophistication. The growth of mobile and IoT devices and amateur software only add to that. But, privacy is

Lengthscale Effects on Exchange Coupling in Co-Pt Ll 0 +Ll 2 Nanochessboards

September 1, 2016
Author(s)
Eric P. Vetter, Liwei Geng, Priya Ghatwai, Dustin A. Gilbert, Yongmei Jin, William A. Soffa, Jerrold A. Floro
The Co-Pt nanochessboard is a quasi-periodic, nanocomposite tiling of Ll 0 and Ll 2 magnetic phases that offers a novel structure for the investigation of exchange coupling, relevant to permanent magnet applications. Periodicity of the tiling is controlled

Marie Curies Last Radium Standard Grand Challenge

September 1, 2016
Author(s)
Bert M. Coursey
The last of the radium-226 standards that Marie Curie personally handled is destined for a radioactive materials waste dump. Presented here is a history of the standards and a challenge to the scientific community to present a rationale for why this

Optimal joint detection and estimation that maximizes ROC-type curves

September 1, 2016
Author(s)
Adam J. Wunderlich, Bart Goossens, Craig K. Abbey
Combined detection-estimation tasks are frequently encountered in medical imaging. Hence, optimal methods for joint detection and estimation are of interest because they provide upper bounds on observer performance and can motivate practical image analysis
Displaying 15976 - 16000 of 74256
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