Results 81 to 90 of about 271,563 (296)

Lamb Shift in Muonic Hydrogen. II. Analysis of the Discrepancy of Theory and Experiment

open access: yes, 2010
Currently, both the g factor measurement of the muon as well as the Lamb shift 2S-2P measurement in muonic hydrogen are in disagreement with theory. Here, we investigate possible theoretical explanations, including proton structure effects and small ...
Adler   +77 more
core   +1 more source

Interplay between pairing and correlations in spin-polarized bound states [PDF]

open access: yes, 2018
We investigate the single and multiple defects embedded in a superconducting host, studying interplay between the proximity induced pairing and interactions.
Domanski, T.   +6 more
core   +2 more sources

Investigating the effect of magnetic dipole–dipole interaction on magnetic particle spectroscopy: implications for magnetic nanoparticle-based bioassays and magnetic particle imaging [PDF]

open access: yesJournal of Physics D: Applied Physics, 2019
Superparamagnetic iron oxide nanoparticles (SPIONs), with comparable size to biomolecules (such as proteins, nucleic acids, etc.) and unique magnetic properties, good biocompatibility, low toxicity, potent catalytic behavior, are promising candidates for many biomedical applications.
Kai Wu   +4 more
openaire   +2 more sources

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

open access: yesAdvanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du   +4 more
wiley   +1 more source

Energy levels and far-infrared spectroscopy for two electrons in a semiconductor nanoring

open access: yes, 2000
The effects of electron-electron interaction of a two-electron nanoring on the energy levels and far-infrared (FIR) spectroscopy have been investigated based on a model calculation which is performed within the exactly numerical diagonalization.
A. Lorke   +28 more
core   +1 more source

Self-consistent magnetic properties of magnetite tracers optimized for magnetic particle imaging measured by ac susceptometry, magnetorelaxometry and magnetic particle spectroscopy [PDF]

open access: yesJournal of Magnetism and Magnetic Materials, 2014
Sensitivity and spatial resolution in Magnetic Particle Imaging are affected by magnetic properties of the nanoparticle tracers used during imaging. Here, we have carried out a comprehensive magnetic characterization of single-core iron oxide nanoparticles that were designed for MPI.
Frank Ludwig   +6 more
openaire   +2 more sources

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

open access: yesAdvanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal   +10 more
wiley   +1 more source

Enhancing magnetism and magnetic separation of ultrafine chalcopyrite from talc through surface oxidation treatment

open access: yesJournal of Materials Research and Technology
Magnetic separation has been proposed to greenly separate chalcopyrite and talc several decades ago, due to their extremely similar floatability of minerals.
Song Zhang   +6 more
doaj   +1 more source

Optimization of Iron Oxide Tracer Synthesis for Magnetic Particle Imaging

open access: yesNanomaterials, 2018
The optimization of iron oxide nanoparticles as tracers for magnetic particle imaging (MPI) alongside the development of data acquisition equipment and image reconstruction techniques is crucial for the required improvements in image resolution and ...
Sabina Ziemian   +5 more
doaj   +1 more source

Trapped-ion decay spectroscopy towards the determination of ground-state components of double-beta decay matrix elements

open access: yes, 2013
A new technique has been developed at TRIUMF's TITAN facility to perform in-trap decay spectroscopy. The aim of this technique is to eventually measure weak electron capture branching ratios (ECBRs) and by this to consequently determine GT matrix ...
Andreoiu, C.   +19 more
core   +1 more source

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