Results 51 to 60 of about 23,746 (299)

A New Threshold Switching Device With Tunable Negative Differential Resistance Based on ErMnO3 Polymorphs

Advanced Functional Materials, EarlyView.
Polymorph engineering in ErMnO3 enables low‐voltage, forming‐free threshold switching with tunable negative differential resistance. Conducting orthorhombic regions embedded in an insulating hexagonal matrix provide controlled Joule‐heating‐enhanced Poole–Frenkel transport. The hexagonal phase prevents excessive heating and breakdown.
Rong Wu, Florian Maudet, Thanh Luan Phan, Wassim Hamouda, Richard Schroedter, Ahmet Samil Demirkol, Ronald Tetzlaff, Veeresh Deshpande, Catherine Dubourdieu   +8 more
wiley   +1 more source

Self-accelerated Universe

, 2003
It is widely believed that the large redshifts for distant supernovae are explained by the vacuum energy dominance, or, in other words, by the cosmological constant in Einstein's equations, which is responsible for the anti-gravitation effect.
B. P. KOSYAKOV, Barut A. O., Damour T., Kosyakov B. P., Kosyakov B. P., Papapetrou A., Teitelboim C.   +6 more
core   +1 more source

The Self-Force of a Charged Particle in Classical Electrodynamics with a Cut-off [PDF]

, 1998
We discuss, in the context of classical electrodynamics with a Lorentz invariant cut-off at short distances, the self-force acting on a point charged particle.
Frenkel J., Grotch H., Grotch H., J. FRENKEL, Moniz E. J., Moniz E. J., R. B. SANTOS   +6 more
core   +3 more sources

In Situ 3D Bioprinting: Impact of Cross‐Linking on the Adhesive Properties of Hydrogels

Advanced Functional Materials, EarlyView.
In situ 3D bioprinting enables the direct deposition of cell‐laden, adhesive biomaterials for on‐site tissue regeneration. This review provides a comprehensive overview of how cross‐linking influences the bioadhesive properties of hydrogels used in 3D bioprinting, highlighting cross‐linking triggers, bioadhesion mechanisms, polymer interpenetration ...
Odile Romero Fernandez, Mulazim Hussain Asim, Shumaila Arshad, Gergely Kali, Andreas Bernkop‐Schnürch   +4 more
wiley   +1 more source

Transport in two dimensional periodic magnetic fields

, 1998
Ballistic transport properties in a two dimensional electron gas are studied numerically, where magnetic fields are perpendicular to the plane of two dimensional electron systemsand periodically modulated both in $x$ and $y$ directions.
Ando T., Baskin M., Beenakker C. W. J., Beenakker C. W. J., Fleischmann R., Geim A. K., Halperin B. I., Ishizaka S., Izawa S., Kato M., Kivelson S. A., Nagao T., Nakanishi T., Roukes M. L., Schmelcher P., Tsukagoshi K., Tsukagoshi K., Uryu S., Weiss D., Ye P. D., Ye P. D.   +20 more
core   +1 more source

Interfacial and Crystallographic Regulation of Zinc Anode via Electric Double Layer Reconstruction for Highly Stable Zn Anode

Advanced Functional Materials, EarlyView.
Trace amounts of perfluoro‐1‐butanesulfonyl fluoride enables the regulation of the Zn/electrolyte interface by the generated zincophilic ─SO3H groups with long hydrophobic ─CF2 tails, which adsorb strongly onto the Zn surface, displace water molecules from the inner Helmholtz plane, and reconstruct the electrical double‐layer structure.
Dinesh Patel, Yimei Chen, Ashwini Kumar Sharma, Xiaolei Wang   +3 more
wiley   +1 more source

Characteristics of the Alfvénic activity during the current quench in ASDEX Upgrade

Nuclear Fusion
ASDEX Upgrade has developed multiple massive gas injection (MGI) scenarios to investigate runaway electron (RE) dynamics. During the current quench of the MGI induced disruptions, Alfvénic activity is observed in the 300–800 kHz range. With the help of a
P. Heinrich, G. Papp, Ph. Lauber, G. Pautasso, M. Dunne, M. Maraschek, V. Igochine, O. Linder, the ASDEX Upgrade Team, the EUROfusion Tokamak Exploitation Team   +9 more
doaj   +1 more source

Shape‐Controlled Guanine Self‐Assemblies for Stable and Fast‐Ion Solid–Electrolyte Interphases in Sustainable Li Metal Batteries

Advanced Functional Materials, EarlyView.
The shape of guanine self‐assemblies is tuned by introducing alkyl (G8), fluoroalkyl (G8f), and oligoether (G8g) side chains into the G moiety. The scanning tunneling microscopy results and calculations show that the presence and type of the side chain strongly affect the G self‐assembly network.
So‐Huei Kang, So‐Dam Sohn, Kyung Min Lee, Seok‐Kyu Cho, Byongkyu Lee, Ji Eun Lee, Sang‐Young Lee, Sang Kyu Kwak, Hyung‐Joon Shin, Changduk Yang   +9 more
wiley   +1 more source

Runaway Electrons in Gas Discharges: Insights from the Numerical Modeling

Plasma
This paper reviews the state of the art of our understanding of the mechanisms of runaway electron generation in pressurized gases from the numerical modeling perspective.
Dmitry Levko
doaj   +1 more source

Time variation of proton-electron mass ratio and fine structure constant with runaway dilaton [PDF]

, 2006
Recent astrophysical observations indicate that the proton-electron mass ratio and the fine structure constant have gone through nontrivial time evolution.
Jun’ichi Yokoyama, M. T. Murphy, Masahide Yamaguchi, Takeshi Chiba, Tatsuo Kobayashi   +4 more
core   +2 more sources