Results 31 to 40 of about 946,047 (336)

Spectral analysis for wide energy channels [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2013
For energetic particle measurements whose spectra follow a power law, it is often challenging to define a characteristic ("effective") energy of an energy channel.
E. A. Kronberg, P. W. Daly
doaj   +1 more source

Vesta and Ceres: crossing the history of the Solar System [PDF]

open access: yesSpace Science Reviews, 2011, Volume 163, Issue 1-4, pp. 25-40, 2011
The evolution of the Solar System can be schematically divided into three different phases: the Solar Nebula, the Primordial Solar System and the Modern Solar System. These three periods were characterized by very different conditions, both from the point of view of the physical conditions and from that of the processes there were acting through them ...
arxiv   +1 more source

Do the solar flares' locations illustrate the boundaries of the solar inner layers? [PDF]

open access: yes, 2022
The angular distance of the heliographical or helioprojective coordinates of the solar flares to the projective point of the center of the Sun on the solar disk has been studied during the periods 1975--2021 for GOES events and 2002--2021 for RHESSI events. It gives a specific distribution hereafter Distance.
arxiv   +1 more source

Research on Equalization Strategy Based on Credibility Factor Inference for Lithium-Ion Battery Packs

open access: yesIEEE Access, 2022
In this paper, a two-stage equalization topology based on Zero-Voltage Switching Quasi-Resonant Converter (ZVS QRC) is proposed to solve the problems of long equalization time and low energy utilization of series lithium-ion battery packs.
Li Liao   +5 more
doaj   +1 more source

Establishment, Validation, and Application of a Comprehensive Thermal Hydraulic Model for a Parabolic Trough Solar Field

open access: yesEnergies, 2019
To better understand the thermal hydraulic characteristics of the parabolic trough solar field (PTSF), a comprehensive thermal hydraulic model (CTHM) based on a pilot plant is developed in this paper.
Linrui Ma   +3 more
doaj   +1 more source

Optimal Planning Method for Power System Line Impedance Based on a Comprehensive Stability Margin

open access: yesIEEE Access, 2021
With the increasing scale of power systems and the large-scale application of new energy technologies, the planning and construction of future power grids and the stable operation of systems face severe challenges.
Dahu Li   +5 more
doaj   +1 more source

Solar System chemical abundances corrected for systematics [PDF]

open access: yes, 2014
The relative chemical abundances between CI meteorites and the solar photosphere exhibit a significant trend with condensation temperature. A trend with condensation temperature is also seen when the solar photospheric abundances are compared to those of nearby solar twins.
arxiv   +1 more source

Making the Solar System

open access: yesThe Astrophysical Journal, 2023
Abstract We model the early stages of planet formation in the solar system, including continual planetesimal formation, and planetesimal and pebble accretion onto planetary embryos in an evolving disk driven by a disk wind. The aim is to constrain aspects of planet formation that have large uncertainties by matching key characteristics ...
openaire   +3 more sources

On the Solar System-Debris Disk Connecction [PDF]

open access: yes, 2007
This paper emphasizes the connection between solar and extra-solar debris disks: how models and observations of the Solar System are helping us understand the debris disk phenomenon, and vice versa, how debris disks are helping us place our Solar System into context.
arxiv   +1 more source

VHF radar measurements of momentum flux using summer polar mesopause echoes

open access: yesEarth, Planets and Space, 2018
We revisit previously unpublished analysis of observations of the dynamics of the mesopause region over the Norwegian Island of Andøya (69°N, 16°E) made during a 1-week period in summer 1987 during the Middle Atmosphere Cooperation-Summer in Northern ...
Iain M. Reid   +3 more
doaj   +1 more source

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