Browsing College of Sciences and Mathematics by Title
Now showing items 392-411 of 419
Two-Dimensional gcPIC Simulation of Rising-Tone Chorus Waves in a Dipole Magneitic Field
(2023-01-19)
Rising-tone chorus waves have already been successfully produced in a mirror magnetic field with the use of one- and two-dimensional particle-in-cell (PIC) simulations. However, in reality, the background magnetic field ...
Two-Dimensional gcPIC Simulation of Rising-Tone Chorus Waves in a Dipole Magnetic Field
(2020-05-26)
Rising-tone chorus waves have already been successfully produced in a mirror magnetic field with the use of one- and two-dimensional particle-in-cell (PIC) simulations. However, in reality, the background magnetic field ...
Two-dimensional global hybrid simulation of pressure evolution and waves in the magnetosheath
(2022-11-01)
A two-dimensional hybrid simulation is carried out for the global structure of the magnetosheath. Quasi-perpendicular magnetosonic/fast mode waves with large-amplitude in-phase oscillations of the magnetic field and the ...
Two-dimensional global hybrid simulation of pressure evolution and waves in the magnetosheath
(2020-06-30)
A two-dimensional hybrid simulation is carried out for the global structure of the magnetosheath. Quasi-perpendicular magnetosonic/fast mode waves with large-amplitude in-phase oscillations of the magnetic field and the ...
Two-dimensional hybrid simulation of the dayside reconnection layer and associated ion transport
(2022-09-20)
The structure of the reconnection layer at the dayside magnetopause is studied by using a two-dimensional (2-D) hybrid code. The simulation domain is a rectangle in the at plane around an X line at the magnetopause. In our ...
Two-dimensional hybrid simulation of the dayside reconnection layer and associated ion transport
(2020-06-30)
The structure of the reconnection layer at the dayside magnetopause is studied by using a two-dimensional (2-D) hybrid code. The simulation domain is a rectangle in the at plane around an X line at the magnetopause. In our ...
A two-dimensional hybrid simulation of the magnetotail reconnection layer
(2022-09-29)
Two-dimensional (2-D) hybrid simulations are carried out to study the structure of the reconnection layer in the distant magnetotail. In the simulation an initial current sheet separates the two lobes with antiparallel ...
Two-Dimensional Particle-in-Cell Simulation of Magnetosonic Wave Excitation in a Dipole Magnetic Field
(2020-05-27)
The excitation of magnetosonic waves in the meridian plane of a rescaled dipole magnetic field is investigated, for the first time, using a general curvilinear particle-in-cell simulation. Our simulation demonstrates that ...
Two-photon imaging of Zn2+ dynamics in mossy fiber boutons of adult hippocampal slices
(2020-01-16)
Mossy fiber termini in the hippocampus accumulate Zn2+, which is released with glutamate from synaptic vesicles upon neural excitation. Understanding the spatiotemporal regulation of mobile Zn2+ at the synaptic level is ...
The U.S. educational effort in unsaturated zone hydrology
(2022-10-29)
The region of the earth below the land surface and above the water-saturated zone plays a major role in determining the behavior of hydrologic systems. To help educators and other interested individuals evaluate and continue ...
Understanding the growth rate patterns of ion Bernstein instabilities driven by ring-like proton velocity distributions
(2022-09-20)
Fast magnetosonic waves in Earth's inner magnetosphere, which have as their source ion Bernstein instabilities, are driven by hot proton velocity distributions (f(p)) with partial derivative f(p)(v(perpendicular to))/partial ...
Understanding the growth rate patterns of ion Bernstein instabilities driven by ring-like proton velocity distributions
(2020-06-03)
Fast magnetosonic waves in Earth's inner magnetosphere, which have as their source ion Bernstein instabilities, are driven by hot proton velocity distributions (f(p)) with partial derivative f(p)(v(perpendicular to))/partial ...
The Use of Intramolecular Quinol Redox Couples to Facilitate the Catalytic Transformation of O2 and O2-Derived Species
(2025-12-09)
The redox reactivity of transition metal centers can be augmented by nearby redox-active inorganic or organic moieties. In some cases, these functional groups can even allow a metal center to participate in reactions that ...
Valence and diffuse-bound anions of noble-gas complexes with uracil
(2020-08-20)
Valence-bound (VB) and diffuse-bound (DB) anions of noble-gas (Ar, Kr, and Xe) complexes with
uracil have been studied with ab initio methods. MP2 optimizations revealed minima corresponding
to anions of both kinds in ...
Validation of nrDNA ITS as a DNA barcode for Marshallia (Asteraceae)
(2025-09-17)
We examine the utility of nrDNA ITS as a barcode marker in the southeastern endemic wildflower genus Marshallia,
sequencing multiple individuals of all species. With the exception of the putative hybrid M. mohrii, all ...
Variation of Morphology and Elemental Concentrations in the California Nickel Hyperaccumulator Streptanthus polygaloides (Brassicaceae)
(2021-01-04)
The Ni hyperaccumulator Strepthanthus polygaloides (Brassicaceae)
is one of a handful of Ni hyperaccumulators known from continental North
America. Surveys have revealed four distinctive morphs of this species, relying ...
The Vascular Flora of the Red Hills Forever Wild Tract, Monroe County, Alabama
(2025-09-17)
The Red Hills Forever Wild Tract (RHFWT) is a 1785 ha property that was acquired in two purchases by the State of
Alabama Forever Wild Program in February and September 2010. The RHFWT is characterized by undulating
terrain ...
Vascular Plant Flora of the Solon Dixon Forestry Education Center, Alabama
(2025-09-17)
A survey of the vascular plant flora was conducted at the Solon Dixon Forestry Education Center in south-central
Alabama. Over 2000 vascular plant specimens were collected from the 2144 ha site comprising 152 families, ...
VHF and UHF Electromagnetic Radiation Produced by Streamers in Lightning
(2020-03-10)
In this letter, we report simulation results of streamer propagation and collision that produce electromagnetic radiation in the very high frequency (VHF) and ultra high frequency (UHF) bands. The streamers are initiated ...