Results 51 to 60 of about 8,936 (199)

Magnetron Sputtering Synthesis of La‐Doped BiFeO3 Thin Films and Enhanced Exchange Bias in CoFeB/Bi1‐xLaxFeO3 Heterostructures

Advanced Physics Research, Volume 5, Issue 5, May 2026.
This study explores the epitaxial growth of high‐quality La‐doped BiFeO3 (BLFO) thin films at 550 °C using magnetron sputtering. The films exhibit good ferroelectric properties and low leakage current. A BLFO/CoFeB heterostructure is constructed, achieving an exchange bias field exceeding the coercive field at room temperature.
Zhiqin Zhou, Ligang Bai, Chen Qi, Xiaoyang Lin, Ivair Aparecido dos Santos, Gustavo Sanguino Dias, Luiz Fernanado Cótica, Weisheng Zhao, Yanxue Chen, Tianxiao Nie, Guodong Wei   +10 more
wiley   +1 more source

Analysis of Meshing Characteristic and Return Clearance of Precision Cycloid Transmission for Robot

Jixie chuandong, 2017
Aiming at the cycloid transmission in the cycloid planetary gear speed reducer used for robot,the analysis model for return clearance and mesh force calculation of cycloid transmission is set based on gear meshing theory and dynamic multi teeth meshing ...
Zhang Liyong, Zhou Hongkai, Wang Changlu, Qiao Xuetao   +3 more
doaj  

Teaching and Learning Trochoid Curves: The Importance of LEGO^® Drawing Robots and Educational Robotics in Tertiary Mathematics Education

Education Sciences
An innovative, STEAM-based educational approach uses LEGO® robots to improve the visualisation and understanding of trochoid curves in tertiary mathematics education.
Szilvia Szilágyi, Attila Körei, Ingrida Vaičiulytė   +2 more
doaj   +1 more source

Fuel optimal maneuvers of spacecraft about a circular orbit [PDF]

, 1982
Fuel optimal maneuvers of spacecraft relative to a body in circular orbit are investigated using a point mass model in which the magnitude of the thrust vector is bounded.
Carter, T. E.
core   +1 more source

Control of multiferroic domains by external electric fields in TbMnO3

, 2015
The control of multiferroic domains through external electric fields has been studied by dielectric measurements and by polarized neutron diffraction on single-crystalline TbMnO$_3$.
Baum, M., Braden, M., Cronert, T., Holbein, S., Hutanu, Vladimir, Komarek, A. C., Stein, J.   +6 more
core   +1 more source

An Aeolian Depositional Sequence Shaped by Near‐Surface Water at the Base of the Layered Sulfate Unit, Gale Crater, Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract The basal strata of the orbitally defined Layered Sulfate unit (LSu) in Gale crater, Mars, marks the end of a major mineralogical transition from clay‐to sulfate‐bearing stratigraphy. This has previously been attributed to a period of significant aridification of Gale's climate. Here, we present ground‐based observations by the Curiosity rover
Amelie L. Roberts, Sanjeev Gupta, Aster Cowart, Lauren A. Edgar, William Rapin, William E. Dietrich, Edwin Kite, Steven G. Banham, Joel M. Davis, Claire A. Mondro, Dave M. Rubin, John P. Grotzinger, William Farrand, Linda Kah, Kevin Lewis, Alexander Bryk, Catherine Weitz, Rachel Y. Sheppard, Gwénaël Caravaca, Stéphane Le Mouélic, Emma R. Harris, Patrick J. Gasda, Aileen Yingst, Deirdra Fey, Jeffrey R. Johnson, Gerhard P. Paar, Abigail A. Fraeman, Ashwin R. Vasavada   +27 more
wiley   +1 more source

Modeling the Detectability of Energetic Heliospheric Ions at Pluto During the New Horizons Flyby

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract We investigate the detectability of heliospheric helium ions at energies up to 100 keV by the New Horizons (NH) spacecraft during its flyby through Pluto's induced magnetosphere. The Pluto Energetic Particle Spectrometer Science Investigation energetic ion detector observed a reduction in their flux by an order of magnitude as the spacecraft ...
Randall T. Ruch, Sven Simon, Peter Kollmann, C. Michael Haynes   +3 more
wiley   +1 more source

Forced Response Analysis of Dynamic Systems With Inertia Nonlinearity by Applying the Multiharmonic Balance Method

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 1, March 2026.
ABSTRACT Nonlinear mechanical vibrations under harmonic forcing can be well approximated by Fourier series. For a finite number of harmonics, the error is minimized over one period of vibration. This technique, known as multiharmonic balance method (MHBM), is today widely used in academics as well as industrial applications, e.g., for friction‐damped ...
Sebastian Tatzko, Sebastian Neumann, Tido Kubatschek   +2 more
wiley   +1 more source

Analysis of the Modification and Backlash of High Precision Cycloid Drive

Jixie chuandong, 2015
The backlash is an important indicator of cycloid drive,and the modification is a major factor.Comprehensively considering the bearing capacity and backlash of the whole machine,the modification optimization of the cycloid gear is carried out by using ...
Hou Nai, Wang Changlu, Zhang Liyong, Huang Shoufeng, Zhou Hongkai, Li Yakang   +5 more
doaj  

Kinetic Structure of an Interplanetary Shock Observed at Two Heliocentric Longitudes

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Collisionless shocks convert bulk flow energy into heat, electromagnetic fields, and non‐thermal particle populations. Recent studies suggest that downstream magnetic oscillations could play an important role in ion‐scale energy dissipation at low‐Mach‐number shocks; however, the specific shock and plasma parameters involved remain poorly ...
J. J. Boldú, D. B. Graham, M. Morooka, M. André, Yu. V. Khotyaintsev, A. Dimmock, A. Lalti, D. Píša, J. Souček, M. Maksimovic, P. Louarn, A. Fedorov, C. J. Owen   +12 more
wiley   +1 more source