Results 41 to 50 of about 24,105,224 (402)

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

EVIDENCE FOR A DISTANT GIANT PLANET IN THE SOLAR SYSTEM [PDF]

open access: yes, 2016
Recent analyses have shown that distant orbits within the scattered disk population of the Kuiper Belt exhibit an unexpected clustering in their respective arguments of perihelion. While several hypotheses have been put forward to explain this alignment,
K. Batygin, M. Brown
semanticscholar   +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

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

Outdoor performance of a reflective type 3D LCPV system under different climatic conditions [PDF]

open access: yes, 2017
Concentrating sunlight and focusing on smaller solar cells increases the power output per unit solar cell area. In the present study, we highlight the design of a low concentrating photovoltaic (LCPV) system and its performance in different test ...
Baig, Hasan   +10 more
core   +2 more sources

Solar System

open access: yesEmic
Section divider: Solar System.
Del Halter   +6 more
semanticscholar   +1 more source

Vesta and Ceres: crossing the history of the Solar System

open access: yes, 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.
Coradini, Angioletta   +3 more
core   +1 more source

Mapping Solar System chaos with the Geological Orrery

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance The Solar System is chaotic, and precise solutions for the motions of the planets are limited to about 60 million years. Using a network of coring experiments that we call the Geological Orrery (after 18th century planetaria), we recover ...
P. Olsen   +6 more
semanticscholar   +1 more source

Proterozoic Milankovitch cycles and the history of the solar system

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2018
Significance Periodic variations in Earth’s orbit and rotation axis occur over tens of thousands of years, producing rhythmic climate changes known as Milankovitch cycles.
S. Meyers, A. Malinverno
semanticscholar   +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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