Results 81 to 90 of about 3,424,751 (303)

Pick-up ion dynamics at the structured quasi-perpendicular shock [PDF]

open access: yes, 1997
We study the pickup ion dynamics and mechanism of multiple reflection and acceleration at the structured quasi-perpendicular supercritical shock. The motion of the pickup ions in the shock is studied analytically and numerically using the test particle ...
Coates   +21 more
core   +2 more sources

Electron-ion geminate escape probability in anisotropic media

open access: yesChemical Physics Letters, 1987
Abstract The diffusion-controlled electron-hole geminate escape probability in anisotropic media has been calculated by numerical solution of the adjoint equation for that probability after a series of simplifying transformations. Relative to the crystalline axes the anisotropies of both dielectric constant and mobility, which generally have ...
A. Mozumder   +3 more
openaire   +1 more source

Trap‐Modified Inverted Organic Photodetectors via Layer‐by‐Layer Processing with Poly(N‐vinylcarbazole) Additives

open access: yesAdvanced Functional Materials, EarlyView.
Trap state engineering in inverted organic photodetectors (OPDs) is achieved via combined layer‐by‐layer (LbL) processing and poly(N‐vinylcarbazole) (PVK) incorporation. LbL reduces the trap density while PVK additives gradually shift trap states from shallow band‐edge to deep mid‐gap levels, tailoring the energy distribution.
Jingwei Yi   +10 more
wiley   +1 more source

Ion escape from degenerate induced magnetospheres: The case of Mars

open access: yesGeophysical Research Letters
When the cone angle of the solar interplanetary magnetic field (IMF) becomes small, induced magnetospheres of unmagnetized planets degenerate, resulting in a markedly different mode of the interaction. In this case, solar wind protons penetrate all the way to the top of the atmosphere on the dayside of Mars.
Qi Zhang   +7 more
openaire   +2 more sources

Synthetic Nanobiology Actuated Lipometabolic Cell Factory for Autologous Tumor Immunotherapy

open access: yesAdvanced Functional Materials, EarlyView.
FA plays a crucial role in the interaction between tumor cells and the tumor microenvironment, especially for the immune response. A biocatalytic immunoenhancement strategy is developed to boost antitumor immunity by FA metabolic orientation to ceramide. Through the design of this delicate catalytic immunoenhancement strategy, the synthetic nanobiology
Shoujie Zhao   +8 more
wiley   +1 more source

Martian Atmospheric Loss Through Foreshock Transient Events

open access: yesGeophysical Research Letters
At Mars, the MAVEN spacecraft has made observations of Hot Flow Anomalies (HFAs) in the foreshock. Due to the bow shock's proximity to the planet, it is theorized that HFAs contribute to atmospheric escape at Mars through the excavation of ionospheric ...
Alexandros C. Cooke‐Politikos   +5 more
doaj   +1 more source

Kelvin–Helmholtz Instability at Mars: In Situ Observations and Kinetic Simulations

open access: yesThe Astrophysical Journal, 2023
Kelvin–Helmholtz (K-H) instability is a fundamental boundary instability between two fluids with different speeds, exchanging the mass, momentum, and energy across the boundary.
Lei Wang   +7 more
doaj   +1 more source

Small-scale Intensity Mapping: Extended Halos as a Probe of the Ionizing Escape Fraction and Faint Galaxy Populations during Reionization

open access: yes, 2017
We present a new method to quantify the value of the escape fraction of ionizing photons, and the existence of ultra-faint galaxies clustered around brighter objects during the epoch of cosmic reionization, using the diffuse Ly$\alpha$, continuum and H ...
Davies, Frederick B.   +5 more
core   +1 more source

Non-linear diffusion of cosmic rays escaping from supernova remnants - I. The effect of neutrals [PDF]

open access: yes, 2016
Supernova remnants are believed to be the main sources of galactic Cosmic Rays (CR). Within this framework, particles are accelerated at supernova remnant shocks and then released in the interstellar medium.
Gabici, Stefano   +4 more
core   +4 more sources

Ion escape from Mars

open access: yes, 2023
When the solar wind reaches the Mars obstacle, mass loading by planetary ions slows down the solar wind and raises the bow shock. The Martian atmosphere is undergoing the a scavenging by the solar wind without the protection of a global magnetic field. Atmospheric escape is an important process for the evolution of the Martian climate. For present Mars,
openaire   +1 more source

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