Results 71 to 80 of about 1,935 (214)

Injection Process of Pickup Ion Acceleration at an Oblique Heliospheric Termination Shock

open access: yesThe Astrophysical Journal Letters
The injection process of pickup ion acceleration at a heliospheric termination shock is investigated. Using two-dimensional fully kinetic particle-in-cell simulation, accelerated pickup ions are self-consistently reproduced by tracking long time ...
Shuichi Matsukiyo, Yosuke Matsumoto
doaj   +1 more source

A 50‐Year Historical Perspective of the Extended Koopmans' Theorem, Its Exactness, and Future Prospects

open access: yesInternational Journal of Quantum Chemistry, Volume 126, Issue 13, July 5, 2026.
The early history of the extended Koopmans' theorem is reviewed. The history of studies of its exactness for ionization is discussed, as well as limits of accuracy for electron affinities. The extended Koopmans' theorem will be useful in obtaining Dyson orbitals for application in studies of chemical reactivity.
Robert C. Morrison
wiley   +1 more source

Transport of cross helicity and radial evolution of alfvenicity in the solar wind [PDF]

open access: yes, 2004
A transport theory including cross helicity, magnetohydrodynamic(MHD) turbulence, and driving by shear and pickup ions, is applied to the radial evolution of the solar wind.
Matthaeus, William H.   +5 more
core   +1 more source

Electrophoretic NMR in Aqueous Systems: Addressing Practical Aspects in Probehead Design and Data Processing

open access: yesAnalysis &Sensing, Volume 6, Issue 4, July 2026.
Electrophoretic NMR, the application of a strong electric field in situ in a dilute solution combined with PFG NMR enables the study of the effective charge of molecules in solution and binding effects, specific for the application in dilute aqueous systems are discussed.
Benjamin Kohn   +2 more
wiley   +1 more source

Physical origin of pickup currents [PDF]

open access: yesAnnales Geophysicae, 2016
So-called pickup electric currents, associated with the ionization of neutral particles in the presence of a flowing plasma, are conventionally described as produced directly by differential displacement of ions and electrons as the result of ...
V. M. Vasyliūnas
doaj   +1 more source

Low‐Cost and Detunable Wireless Resonator Glasses for Enhanced Eye MRI With Concurrent High‐Quality Whole‐Brain MRI

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 1, Page 499-507, July 2026.
ABSTRACT Purpose To develop a wearable wireless resonator glasses design that enhances eye MRI signal‐to‐noise ratio (SNR) without compromising whole‐brain image quality at 7 T. Methods The device integrates two detunable LC loop resonators into a lightweight, 3D‐printed frame positioned near the eyes.
Ming Lu   +7 more
wiley   +1 more source

Pickup protons at quasi-perpendicular shocks: full particle electrodynamic simulations [PDF]

open access: yesAnnales Geophysicae, 2007
We have performed 3 one-dimensional full particle electromagnetic simulations of a quasi-perpendicular shock with the same Alfvén Mach number MA~5, shock normal-magnetic field angle ΘBn=87° and ion and electron beta (particle to magnetic ...
S. Matsukiyo   +3 more
doaj   +1 more source

Deterministic Propagation of Suprathermal Ions Through the Heliosphere

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract The PEPSSI instrument onboard New Horizons is sampling the energy range that bridges pickup and suprathermal He+ ${\mathrm{H}\mathrm{e}}^{+}$ ions for the first time in the outer heliosphere. New Horizons repeatedly encountered structures beyond 30 au that we interpret as the spiral of a corotating interaction region (CIR) for an extended ...
P. Kollmann   +12 more
wiley   +1 more source

Effect of silver content on the structure and antibacterial activity of silver-doped phosphate-based glasses [PDF]

open access: yes, 2007
Staphylococcus aureus can cause a range of diseases, such as osteomyelitis, as well as colonize implanted medical devices. In most instances the organism forms biofilms that not only are resistant to the body's defense mechanisms but also display ...
Hope, Chris K.   +11 more
core   +1 more source

Transport Equation of Kappa Distributions in the Heliosphere

open access: yesThe Astrophysical Journal, 2023
In this paper, we develop the transport equation of kappa, the fundamental thermodynamic parameter that labels kappa distributions of particle velocities.
G. Livadiotis, D. J. McComas
doaj   +1 more source

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