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The Solar Wind [PDF]

open access: bronzeJournal of Research of the National Bureau of Standards, Section D: Radio Propagation, 1961
>Hydrodynamic expansion of the solar corona is the basis for solar corpuscular radiation. The quiet day coronal temperatures of 1 to 2 x 10/sup 6/ deg K yield a solar wind of several hundred km/sec and a density of 5 to 50 particles/cm/sup 3/ at the orbit of Earth.
E. N. Parker
openalex   +3 more sources

The evolution of the solar wind. [PDF]

open access: yesLiving Rev Sol Phys, 2021
AbstractHow has the solar wind evolved to reach what it is today? In this review, I discuss the long-term evolution of the solar wind, including the evolution of observed properties that are intimately linked to the solar wind: rotation, magnetism and activity. Given that we cannot access data from the solar wind 4 billion years ago, this review relies
Vidotto AA.
europepmc   +6 more sources

Two Level Control Strategy for Independent AC/DC Hybrid Microgrid Based on Integrated Control [PDF]

open access: yesE3S Web of Conferences, 2021
Aiming at the independent AC/DC microgrid, a simple and effective multi time scale control strategy is proposed by adopting the combination of day ahead scheduling and real-time control.
Liu Hanmin   +7 more
doaj   +1 more source

Construction of digital operation and maintenance system for new energy power generation enterprises [PDF]

open access: yesE3S Web of Conferences, 2021
In view of the current increasing new energy installed capacity and the frustration in outputting clean electricity due to limited channel capacity, the new energy intelligence operation system based on big data platform technology, joint power ...
Wenyu Zhang   +7 more
doaj   +1 more source

Pixel-Based Image Processing for CIE Standard Sky Classification through ANN

open access: yesComplexity, 2021
Digital sky images are studied for the definition of sky conditions in accordance with the CIE Standard General Sky Guide. Likewise, adequate image-processing methods are analyzed that highlight key image information, prior to the application of ...
D. Granados-López   +5 more
doaj   +1 more source

The model for non-Abelian field topology for the multilayer fractional quantum anomalous Hall device

open access: yesFrontiers in Physics, 2022
From the recent empirical discovery of the quantum anomalous Hall effect (QAHE), the interaction of the particle with spin–orbit coupling (SOC) plays an essential role in the cause of the QAHE, which includes three terms: external, internal, and chiral ...
Jie Shen   +8 more
doaj   +1 more source

Dark Solar Wind

open access: yesPhysical Review Letters, 2022
We study the solar emission of light dark sector particles that self-interact strongly enough to self-thermalize. The resulting outflow behaves like a fluid which accelerates under its own thermal pressure to highly relativistic bulk velocities in the solar system.
Jae Hyeok Chang   +4 more
openaire   +3 more sources

Algorithm for frequency capture and rectification in a low-orbit satellite IoT communication network

open access: yesMathematical Biosciences and Engineering, 2021
In satellite communication systems, due to relative motion between satellites and that between satellites and the ground, the resulting Doppler frequency offset adversely affects communication synchronization.
Jie Shen   +3 more
doaj   +1 more source

Mechanical stress induces a scalable circularly polarized LEO satellite antenna with Quadrifilar spiral

open access: yesMathematical Biosciences and Engineering, 2022
This paper investigates a left-hand circularly polarized (LHCP) antenna and a right-hand circularly polarized (RHCP) antenna on LEO Satellite, which is based on the phase-tuning metasurface. We overcome its inherent limitations in size, weight and power,
Jie Shen, Han-min Liu, Jing Wang
doaj   +1 more source

Solar Ultraviolet Irradiance Characterization under All Sky Conditions in Burgos, Spain

open access: yesApplied Sciences, 2022
Solar Ultraviolet Radiation (UVR), which is identified as a major environmental health hazard, is responsible for a variety of photochemical reactions with direct effects on urban and aquatic ecosystems, human health, plant growth, and the deterioration ...
Sol García-Rodríguez   +4 more
doaj   +1 more source

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