Results 71 to 80 of about 162,130 (269)

Applying Magnetic Curvature to MMS Data to Identify Thin Current Sheets Relative to Tail Reconnection. [PDF]

J Geophys Res Space Phys, 2023
Rogers AJ, Farrugia CJ, Torbert RB, Rogers TJ.   +3 more
europepmc   +1 more source

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source

The Energetic Oxygen Ion Beams in the Martian Magnetotail Current Sheets: Hints From the Comparisons Between Two Types of Current Sheets

Geophysical Research Letters
Using data from the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission, we explore the plasma properties of Martian magnetotail current sheets (CS), to further understand the solar wind interaction with Mars and ion escape.
Chi Zhang, Zhaojin Rong, Xinzhou Li, Markus Fränz, Hans Nilsson, Riku Jarvinen, Moa Persson, Yoshifumi Futaana, Chuanfei Dong, Masatoshi Yamauchi, Jiawei Gao, Yijia Zhou, Lei Wang, Zhen Shi, Yong Wei, Fei He, Mats Holmström, Stas Barabash   +17 more
doaj   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Comparison of Solar Wind Current Sheets in the Inner Heliosphere

The Astrophysical Journal
The solar wind is filled with intense current sheets (magnetic field discontinuities) that host multiple instabilities and may undergo magnetic reconnection, a basic process for plasma heating and charged particle acceleration.
Zijin Zhang, Anton Artemyev, Vassilis Angelopoulos, Tai Phan, Chen Shi   +4 more
doaj   +1 more source

Design and Analysis of Compression–Torsion Coupling Metamaterials Using the Golden Section Method

Advanced Engineering Materials, EarlyView.
A novel compression–torsion metamaterial is engineered using inclined rods and symmetry breaking. To optimize its torsional performance, the golden section method is employed. The mechanical response of the metamaterial is validated through both numerical analysis and experimental validation.
Amirhossein Hassani, Sara Bagherifard
wiley   +1 more source

Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition

Advanced Engineering Materials, EarlyView.
AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley   +1 more source

Properties of Current Sheets in Two-dimensional Tearing-mediated Incompressible Magnetohydrodynamic Turbulence

The Astrophysical Journal
It is well known that the nonlinear evolution of magnetohydrodynamic (MHD) turbulence generates current sheets. In the solar wind turbulence, current sheets are frequently observed, and they are believed to be an important pathway for the turbulence ...
Chen Shi, Marco Velli, Nikos Sioulas, Zijin Zhang   +3 more
doaj   +1 more source

The Effective Number of Degrees of Freedom of the Far-Fields Radiated by Rectangular Current Sheets

IEEE Open Journal of Antennas and Propagation
The number of degrees of freedom (NDF) of the electromagnetic far-fields generated by current sheets under certain noise level in the environment is evaluated numerically by directly sampling on the constellation of the propagation modes in free space ...
Ting Zang, Gaobiao Xiao
doaj   +1 more source

Kinetic simulations of the coupling between current instabilities and reconnection in thin current sheets [PDF]

Nonlinear Processes in Geophysics, 2000
We investigate the coupling between current and tearing instability modes of a thin current sheet using the particle code GISMO. We identify pure tearing modes (kx≠ 0), instabilities in the current flow direction (ky≠ 0) and general 3D reconnection modes
T. Wiegelmann, J. Büchner
doaj