Results 41 to 50 of about 40,059 (211)

How catching the interstellar wind in the inner solar system led the way on a road to interdisciplinary research between heliophysics and astrophysics

Frontiers in Astronomy and Space Sciences, 2023
Combined in situ observations of the interstellar wind through the solar system and of its pickup ions (PUIs), implanted after ionization in the solar wind, explain, in comparison with interstellar absorption lines of nearby stars, that the Sun is in an ...
Eberhard Möbius
doaj   +1 more source

Fully Wireless and Flexible Valves for Multiplexed and Prolonged Intravesical Liquid Release

Advanced Healthcare Materials, EarlyView.
A fundamental mechanism for the simultaneous control of multiple magnetic valves is reported in a miniature soft robotic patch for intravesical drug delivery, enabling fully wireless and programmable liquid release. Integrated with a bioadhesive interface and induction‐coupling‐based liquid volume sensing, the soft robotic patch is promising to enable ...
Boyang Xiao, Yi Zhu, Yusheng Wang, Janene M. Pierce, Jeffrey J. Tosoian, Xiaoguang Dong   +5 more
wiley   +1 more source

Enhanced Acceleration and Escape of Hydrogen Pickup Ions Upstream from Mars by Interplanetary Shocks

The Astrophysical Journal
The pickup process of newly ionized hydrogen (H) from the Martian extended exosphere represents an important H ^+ escape channel on Mars. It is generally believed that interplanetary (IP) shocks can accelerate the pickup ions and, in turn, affect the ...
Linxia He, Jianpeng Guo, Ruoyu Gui, Fan Zhang, Haibo Lin, Yong Wei, Libo Liu   +6 more
doaj   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

Advanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine, Shashank Gupta, William Makinen, Zayvinn Lin, Krystal Delnoce, Reza Moini   +5 more
wiley   +1 more source

Proton Cyclotron Waves and Pickup Ion Ring Distribution Instabilities Upstream of Mars

Geophysical Research Letters
Proton cyclotron waves (PCWs) upstream of Mars are thought to be associated with the instabilities of pickup ions. The instabilities of pickup ions of ring distributions have larger maximum growth rates compared with beam distributions.
Kun Cheng, Kaijun Liu, Ameneh Mousavi, Misa Cowee, Xianming Zheng, Jingyi Zhou, Yan Wang, Yuqi Liu, Xinye Wang   +8 more
doaj   +1 more source

Imprints from the solar cycle on the helium atom and helium pickup ion distributions [PDF]

Annales Geophysicae, 2003
Neutral interstellar helium atoms penetrate into the solar system almost unaffected by gas–plasma interactions in the heliospheric interface region, and thus can be considered as carriers of original information on the basic parameters (like ...
D. Rucinski, D. Rucinski, M. Bzowski, H. J. Fahr   +3 more
doaj   +1 more source

Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing

Advanced Robotics Research, EarlyView.
This work presents a degradable soft magnetic composite made from recycled NdFeB particles embedded in a gelatin‐based organogel. The material is processed into magnetic sensors and soft robotic components, which can later be dissolved in a green solvent to recover NdFeB magnetic particles.
Muhammad Bilal Khan, Lin Guo, Kilian Schäfer, Eduardo Sergio Oliveros‐Mata, Xiaotao Wang, Florian Hofmann, Matthias Lutzi, Mark Suppelt, Proloy Taran Das, Jan Schmidtpeter, Imants Dirba, Stephan Rinderknecht, Mario Kupnik, Denys Makarov, Oliver Gutfleisch   +14 more
wiley   +1 more source

Fluctuations Driven by Multicomponent Pickup Ion Distributions in the Outer Heliosheath

The Astrophysical Journal
The stability of a realistic multicomponent pickup ion (PUI) velocity distribution derived from a global model of neutral atoms in the heliosphere, which treats hydrogen and helium atoms self-consistently and includes equations for electrons and helium ...
Ameneh Mousavi, Vadim Roytershteyn, Federico Fraternale, Nikolai Pogorelov   +3 more
doaj   +1 more source

Mirror instability driven by pickup ions in the outer heliosheath

The Astrophysical Journal, 2020
<p><span class="fontstyle0">Kinetic linear instability analysis and hybrid simulations are carried out to examine the role of mirror instability in scattering the pickup ions in the outer heliosheath. The dynamics of these pickup ions is essential to<br />the understanding of the energetic ...
Ameneh Mousavi, Kaijun Liu, Kyungguk Min
openaire   +1 more source

Cassini CAPS Identification of Pickup Ion Compositions at Rhea [PDF]

Geophysical Research Letters, 2018
AbstractSaturn's largest icy moon, Rhea, hosts a tenuous surface‐sputtered exosphere composed primarily of molecular oxygen and carbon dioxide. In this Letter, we examine Cassini Plasma Spectrometer velocity space distributions near Rhea and confirm that Cassini detected nongyrotropic fluxes of outflowing during both the R1 and R1.5 encounters ...
R. T. Desai, S. A. Taylor, L. H. Regoli, A. J. Coates, T. A. Nordheim, M. A. Cordiner, B. D. Teolis, M. F. Thomsen, R. E. Johnson, G. H. Jones, M. M. Cowee, J. H. Waite   +11 more
openaire   +5 more sources