Results 101 to 110 of about 124,007 (302)

The Field-Tuned Superconductor-Insulator Transition with and without Current Bias

, 2001
The magnetic-field-tuned superconductor-insulator transition has been studied in ultrathin Beryllium films quench-condensed near 20 K. In the zero-current limit, a finite-size scaling analysis yields the scaling exponent product vz = 1.35 +/- 0.10 and a ...
A. F. Hebard, A. M. Goldman, Ali Yazdani, D. B. Haviland, D. Ephron, E. Bielejec, E. Bielejec, E. Bielejec, G. Bergmann, G. K. White, Igor F. Herbut, J. M. Valles, Jr., K. G. Singh, L. Zhang, M. A. Paalanen, M. Okamoto, M. P. A. Fisher, M. P. A. Fisher, M. P. A. Fisher, M.-C. Cha, M.-C. Cha, N. Markovic, N. Markovic, R. Fazio, S-Y. Hsu, S. L. Sondhi, Wenhao Wu   +26 more
core   +1 more source

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

Advanced 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, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Model of vertical plasma motion during the current quench

Physics of Plasmas, 2017
Tokamak disruptions impair plasma position control, which allows the plasma column to move and hit the wall. These detrimental events enhance thermal and mechanical loads due to halo currents and runaway electron losses. Their fundamental understanding and prevention is one of the high-priority items for ITER.
D. I. Kiramov, B. N. Breizman
openaire   +2 more sources

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Modeling heat transfer from quench protection heaters to superconducting cables in Nb3Sn magnets

, 2014
We use a recently developed quench protection heater modeling tool for an analysis of heater delays in superconducting high-field Nb3Sn accelerator magnets.
Arbelaez, D., Caspi, S., Chlachidze, G., Felice, H., Kate, H. H. J. ten, Prestemon, S., Salmi, T.   +6 more
core   +1 more source

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source

Universal scaling of quench-induced correlations in a one-dimensional channel at finite temperature

SciPost Physics, 2018
It has been shown that a quantum quench of interactions in a one-dimensional fermion system at zero temperature induces a universal power law $\propto t^{-2}$ in its long-time dynamics.
Alessio Calzona, Filippo Maria Gambetta, Matteo Carrega, Fabio Cavaliere, Thomas L. Schmidt, Maura Sassetti
doaj   +1 more source

The Protection System for the Superconducting Elements of the Large Hadron Collider at CERN [PDF]

, 1999
The protection system for the superconducting elements of the Large Hadron Collider (LHC) [1] at the European Laboratory for Particle Physics (CERN), and its associated equipment are presented: quench detectors, cold diodes, quench heaters and related ...
Dahlerup-Petersen, K, Denz, R, Gómez-Costa, J L, Hagedorn, Dietrich, Proudlock, Paul, Rodríguez-Mateos, F, Schmidt, R, Sonnemann, F   +7 more
core  

Maximum allowable temperature during quench in Nb3Sn accelerator magnets

, 2014
This note aims at understanding the maximum allowable temperature at the hot spot during a quench in Nb3Sn accelerator magnets, through the analysis of experimental results previously presented.Comment: 4 pages, Contribution to WAMSDO 2013: Workshop on ...
Ambrosio, G.
core   +1 more source