Results 81 to 90 of about 1,762,916 (284)

The gradient of galactic cosmic rays at the solar-wind termination shock

The Astrophysical Journal, 1993
We report on a study of the expected spatial variation of the galactic cosmic-ray intensity in the outer heliosphere, in the vicinity of the solar-wind termination shock. Model simulations which contain all of the transport effects, including drifts, predict that the radial gradients change abruptly at the shock, and that the nature of the effect ...
J. R. Jokipii, J. Kota, E. Merenyi
openaire   +1 more source

Heating of the low-latitude solar wind by dissipation of turbulent magnetic fluctuations [PDF]

, 2001
We test a theory presented previously to account for the turbulent transport of magnetic fluctuation energy in the solar wind and the related dissipation and heating of the ambient ion population. This theory accounts for the injection of magnetic energy
Matthaeus, William H., Richardson, John D., Oughton, Sean, Smith, Charles W., Ness, Norman F., Zank, Gary P.   +5 more
core   +1 more source

Efficient Adsorption‐Based Direct Air Capture Via Triply Periodic Minimal Surface Architectures

Advanced Science, EarlyView.
Architected triply periodic minimal surface (TPMS) contactors reshape direct air capture by replacing straight‐channel diffusion limits with convection‐enhanced CO2 transport. Chaotic advection thins boundary layers and exposes fast adsorption sites, enabling 70%–75% more fast sites, 114% higher productivity, and 51.8% lower energy consumption than ...
Qingyang Shao, Zhuozhen Gan, Chengcheng Long, Man Zhang, Yihe Miao, Yuehui Li, Xuancan Zhu   +6 more
wiley   +1 more source

The Gradual Slowing of the Solar Wind in the Outer Heliosphere

The Astrophysical Journal
The solar wind gradually slows with increasing distance from the Sun as interstellar material becomes ionized and picked up by the solar wind. When observing the solar wind in the outer heliosphere, it is difficult to differentiate temporal decreases in ...
Heather A. Elliott, Tae K. Kim, John D. Richardson, Justyna M. Sokół, Bishwas L. Shrestha, Eric J. Zirnstein, David J. McComas, Paweł Swaczyna, Merav Opher, Maher A. Dayeh, Matthew E. Hill, Andrew Poppe, S. Alan Stern, Pontus C. Brandt, Kelsi Singer, Joel Parker, Anne J. Verbiscer, New Horizons Heliophysics Team   +17 more
doaj   +1 more source

Termination shock response to large‐scale solar wind fluctuations [PDF]

Journal of Geophysical Research: Space Physics, 1994
The analysis of data recorded by the Voyager 2 spacecraft indicates the presence of large‐scale fluctuations in the solar wind ram pressure on the time scale of tens of days. The amplitude of the fluctuations is highly variable but often lies within a factor of 5 to 10 change from an average or mean value of the ram pressure.
openaire   +1 more source

Bio‐Inspired Bidirectional Winding Origami With Programmable Modular Reconfigurability and Scalability

Advanced Science, EarlyView.
A bio‐inspired bidirectional‐winding origami platform enables scalable and programmable deployable structures. Double axial folding inspired by earwig hindwings and Flasher‐based hybridization create modular multilayer architectures with diverse attainable winding angles under fixed boundary conditions.
Wenyao Zhang, Chunlong Wang, Mingli Liu, Chuang Shi, Hongwei Guo, Rongqiang Liu   +5 more
wiley   +1 more source

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

Advanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen, Bapan Biswas, Apinya Ngoipala, Julia Wiktor, Ujjwal Pal, Shalini Singh   +5 more
wiley   +1 more source

Instabilities along the Axis of the Heliospheric Jets

The Astrophysical Journal
The heliosphere is influenced by the interaction of neutral hydrogen atoms from the interstellar medium with protons in the heliosheath (HS). The confinement by the solar magnetic field of the HS plasma forms distinct north and south heliospheric jets ...
Xiaohan Ma, Merav Opher, Marc Kornbleuth, Gabor Toth   +3 more
doaj   +1 more source

Corotating interaction regions as seen by the STEREO Heliospheric Imagers 2007 – 2010 [PDF]

, 2015
T.M. Conlon and A.O. Williams were supported by an STFC, UK studentship and S.E. Milan was supported by STFC grant ST/K001000/1. Date of Acceptance: 08/08/2015NASA’s Solar Terrestrial Relations Observatory (STEREO) mission has coincided with a pronounced
J. A. Davies, Conlon, Thomas Michael, Davies, J.A., Milan, S.E., S. E. Milan, T. M. Conlon, A. O. Williams, Williams, A.O.   +7 more
core   +1 more source

Flexoelectric Suppression of Interfacial Carrier Loss in BaTiO3 Thin‐Film Bulk Photovoltaic Systems

Advanced Science, EarlyView.
In single‐crystalline BaTiO3 thin films, flexoelectric strain gradients strongly enhance photocurrent by suppressing interfacial carrier loss. Loading experiments reveal a ∼35‐fold photocurrent increase with applied force. Self‐consistent electrostatic modeling shows that strain gradients reshape the interfacial potential landscape, strengthen local ...
Minwoo Jang, Hyunkyu Lim, Sanghoon Yeom, Jaewhan Oh, Yongsoo Yang, Hyungwoo Lee   +5 more
wiley   +1 more source