Results 111 to 120 of about 3,048,279 (321)

Emittance measurement and modeling for the Fermilab Booster

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2006
Turn-by-turn beam profile data measured at the Fermilab Booster are studied. Lattice models with experimental accelerator ramping parameters are used to obtain the lattice functions for data analysis.
Xiaobiao Huang   +3 more
doaj   +1 more source

Multipolar Resonances in Electro‐Optic Metasurfaces with Moderate Refractive Index

open access: yesAdvanced Photonics Research, EarlyView.
Electro‐optic nanoantennas with moderate refractive indices of 2.3 to 3.0 are numerically shown to sustain strong multipolar resonances, enabling efficient light confinement and EO tuning. Multipolar modes of even parity are most sensitive to variations in the refractive index.
Viktoriia E. Babicheva   +1 more
wiley   +1 more source

Reduced transition probabilities for the gamma decay of the 7.8 eV isomer in $^{229}$Th

open access: yes, 2017
The reduced magnetic dipole and electric quadrupole transition probabilities for the radiative decay of the $^{229}$Th 7.8 eV isomer to the ground state are predicted within a detailed nuclear-structure model approach. We show that the presence and decay
Minkov, Nikolay, Pálffy, Adriana
core   +1 more source

Bound States in the Continuum in Metasurface Absorbers: A Comparison with Metasurfaces

open access: yesAdvanced Photonics Research, EarlyView.
Bound states in the continuum (BICs) offer a powerful mechanism for enhancing light–matter interactions. This work systematically investigates the radiation characteristics of BICs under both transmission and reflection configurations using multipolar analysis.
Guizhen Xu   +3 more
wiley   +1 more source

Twisted magnetosphere with quadrupolar fields in the exterior of a neutron star

open access: yes, 2018
The magnetar magnetosphere is gradually twisted by shearing from footpoint motion, and stored magnetic energy also increases at the same time. When a state exceeds a threshold, flares/outbursts manifest themselves as a result of a catastrophic transition.
Kojima, Yasufumi
core   +1 more source

Nanophotonic Strategies for Chiral Biosensing: Nanoparticles, Metasurfaces, Magneto‐Optical, and Quantum Approaches

open access: yesAdvanced Photonics Research, EarlyView.
Recent advances in nanophotonics‐based chiral biosensing approaches are comprehensively reviewed, highlighting key trends, advantages, and limitations of each technology. Special attention is given to emerging strategies that exploit magneto‐optical and quantum plasmonic phenomena to enhance sensitivity down to the level of a few molecules, or even a ...
Jorge Ricardo Mejía‐Salazar
wiley   +1 more source

Strong coupling effects between a meta-atom and MIM nanocavity

open access: yesAIP Advances, 2012
In this paper, we investigate the strong coupling effects between a meta-atom and a metal-insulator-metal (MIM) nanocavity. By changing the meta-atom sizes, we achieve the meta-atomic electric dipole, quadrupole or multipole interaction with the ...
San Chen   +4 more
doaj   +1 more source

Calculation of the N to Delta electromagnetic transition matrix element

open access: yes, 2002
We present results on the ratio of electric quadrupole to magnetic dipole amplitudes, $R_{EM}={\cal G}_{E2}/{\cal G}_{M1}$, for the transition $\gamma N to \Delta$ from lattice QCD.
Alexandrou, C.   +7 more
core   +1 more source

Pre‐Administration of Akkermansia Muciniphila Prevents the Development of Severe Acute Graft‐Versus‐Host Disease in Systemic Organs

open access: yesAdvanced Science, EarlyView.
Akkermansia muciniphila, a next‐generation probiotic, alleviates acute graft‐versus‐host disease (aGvHD) following allogeneic hematopoietic stem cell transplantation (HSCT) by providing protective effects across multiple organs. Pre‐colonization with A.
Jeong‐Eun Han   +9 more
wiley   +1 more source

Bacteria and Fungi Synergistically Reprogram Flavonoid Metabolites in the Pericarp of Citrus Reticulata 'Chachi' During Storage

open access: yesAdvanced Science, EarlyView.
The authors employed widely targeted metabolomics, microbial amplicon sequencing, and fermentation assays to investigate the microbiome 's influence on PCRC 's (pericarp of Citrus reticulata ' Chachi ') flavonoid profile over 0–19 years of storage. Based on the correlation analysis, solid‐state and liquid‐state fermentation, and catalytic activity ...
Jianmu Su   +10 more
wiley   +1 more source

Home - About - Disclaimer - Privacy