Results 251 to 260 of about 534,975 (301)

Mechanistic Insights into a Synergistic FeOx/Fe‐N4 System for Practical Nitrate Abatement with Value‐Added Ammonia Recovery

open access: yesAdvanced Functional Materials, EarlyView.
This work provides a novel interpretation of the nitrate reduction mechanism on iron oxides (FeOx) by employing constant‐potential density functional calculations and reports the design and synthesis of a robust and high‐performance Fe3O4/Fe‐N4‐C catalyst with remarkable Faradaic efficiency, current density, and stability under practical reaction ...
Qiang Zhou   +8 more
wiley   +1 more source

Selective Separation of the Rare Earth Elements Dysprosium and Neodymium via Tailoring Nanocellulose Chemical Structure

open access: yesAdvanced Functional Materials, EarlyView.
Dicarboxylate‐modified anionic hairy cellulose nanocrystals exhibit a high selectivity for dysprosium(III) over neodymium(III). This selectivity arises from disordered dicarboxylate cellulose “hairs” that enable cooperative ionic coordination, hydrogen bonding, and strain‐induced conformational shrinkage.
Roya Koshani   +6 more
wiley   +1 more source

Magnetic Flux Sensor

Review of Scientific Instruments, 1965
A device for measuring complex permeabilities, called a magnetic flux sensor, has been constructed from ferrite. Tests of the sensor which involve the imaginary part of the complex permeability are described in this paper. With a signal-to-null ratio of 2:1, the sensor can detect a change of resistance per unit resistance in metallic samples of 1.1×10 ...
Otto H. Zinke, Paul B. Jacovelli
openaire   +1 more source

Does Magnetic Flux Submerge at Flux Cancelation Sites?

Solar Physics, 1999
Simultaneous measurements of the magnetic fields in the photosphere and chromosphere were used to investigate if magnetic flux is submerging at sites between adjacent opposite polarity magnetic network elements in which the flux is observed to decrease or ‘cancel’.
Karen L. Harvey   +3 more
openaire   +1 more source

Easy calculation of magnetic flux

European Journal of Physics, 1998
Summary: In this paper, we give a very simple geometrical method to facilitate the calculation of the magnetic flux in some common cases where the magnetic flux density \(B\) produced by an infinitely long, straight wire carrying a steady current \( I_0\) is considered. The method is also valid for vector fields with the same symmetry.
Carpena, P., Coronado, A. V.
openaire   +2 more sources

The Emergence of Magnetic Flux

Solar Physics, 1985
This paper first summarizes the morphology and dynamics of emerging flux regions and arch filament systems and then discusses detailed observations of a particular active region with emerging magnetic flux.
openaire   +1 more source

Quantum flux parametron with magnetic flux regulator

IEEE Transactions on Appiled Superconductivity, 1991
A magnetic flux regulator for a quantum flux parametron (QFP) is proposed. The regulator is formed with a parallel connection of a Josephson junction across activation inductors building an RF-SQUID (superconducting quantum interference device). This junction makes a nonlinear bypass channel for magnetic activation flux and contributes to regulation of
Y. Harada, W. Hioe, E. Goto
openaire   +1 more source

Magnetic flux array for spontaneous magnetic reconnection experiments

Review of Scientific Instruments, 2008
Experimental investigation of reconnection in magnetized plasmas relies on accurate characterization of the evolving magnetic fields. In experimental configurations where the plasma dynamics are reproducible, magnetic data can be collected in multiple discharges and combined to provide spatially resolved profiles of the plasma dynamics.
A, Kesich   +6 more
openaire   +2 more sources

Magnetic Flux Tubes

2019
The modes of oscillation of a magnetic flux tube are explored, working from the fundamental differential equations obtained in Chapter 3. Sausage modes and kink modes (as in a magnetic slab) are investigated and their dispersion relations understood. Fluting modes also occur.
openaire   +1 more source

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