نتایج جستجو برای: magnetic enhancement

تعداد نتایج: 456498  

2014
Salvatore Campione Caner Guclu Regina Ragan Filippo Capolino

We investigate for the first time the capacity of a twodimensional periodic array (a metasurface) of circular nanoclusters (CNCs) of plasmonic nanoparticles to support magnetic Fano resonances. These resonances are characterized by narrow angular and/or spectral features in the reflection/transmission/absorption coefficients associated with a circular disposition of nanoparticles’ dipole moment...

2003
YU-QING LOU ZUHUI FAN

Multi-wavelength observations from radio to soft X-ray bands of large-scale galactic spiral structures offer synthesized and comprehensive views of nearby disk galaxies. In the presence of a massive dark-matter halo, the density-wave dynamics on galactic scales involves the stellar disk, the gas disk of interstellar medium (ISM), the magnetic field, and the cosmic-ray gas (CRG). In this paper, ...

Journal: :Revista espanola de cardiologia 2013
Gemma Cuberas-Borrós Victor Pineda Santiago Aguadé-Bruix Guillermo Romero-Farina M Nazarena Pizzi Gustavo de León Joan Castell-Conesa David García-Dorado Jaume Candell-Riera

INTRODUCTION AND OBJECTIVES The aim of this study was to compare magnetic resonance and gated-SPECT myocardial perfusion imaging in patients with chronic myocardial infarction. METHODS Magnetic resonance imaging and gated-SPECT were performed in 104 patients (mean age, 61 [12] years; 87.5% male) with a previous infarction. Left ventricular volumes and ejection fraction and classic late gadoli...

1997
C.-Y. Tu E. Marsch K. Ivory R. Schwenn

A sizable total-pressure (magnetic pressure plus kinetic pressure) enhancement was found within the high-speed wind stream observed by Helios 2 in 1976 near 0.3 AU. The proton density and temperature and the magnetic magnitude simultaneously increased for about 6 h. This pressure rise was associated with a comparatively large southward flow velocity component (with Vz )100 km · s ) and magnetic...

2013
Chengliang Lu Shuai Dong Zhengcai Xia Hui Luo Zhibo Yan Haowen Wang Zhaoming Tian Songliu Yuan Tao Wu Junming Liu

The mutual controls of ferroelectricity and magnetism are stepping towards practical applications proposed for quite a few promising devices in which multiferroic thin films are involved. Although ferroelectricity stemming from specific spiral spin ordering has been reported in highly distorted bulk perovskite manganites, the existence of magnetically induced ferroelectricity in the correspondi...

Journal: :Optics express 2013
Y Yang H T Dai X W Sun

Inspired by Babinet's principle, we proposed a new plasmonic structure for enhancing the optical magnetic field, i.e. split ring aperture, whose complement is the well-known split ring. The split ring aperture exhibits a much better performance under radially polarized excitation than linearly polarized excitation. We attribute the ultra-high intensity enhancement in magnetic field to the symme...

Journal: :Circulation 2008
Karen C Briley-Saebo Peter X Shaw Willem J M Mulder Seung-Hyuk Choi Esad Vucic Juan Gilberto S Aguinaldo Joseph L Witztum Valentin Fuster Sotirios Tsimikas Zahi A Fayad

BACKGROUND Oxidized low-density lipoprotein plays a key role in the initiation, progression, and destabilization of atherosclerotic plaques and is present in macrophages and the lipid pool. The aim of this study was to assess the feasibility of magnetic resonance imaging of atherosclerotic lesions in mice using micelles containing gadolinium and murine (MDA2 and E06) or human (IK17) antibodies ...

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