Results 21 to 30 of about 552,904 (341)

Daily data of Global Vertical Insolation in the four cardinal orientations in Burgos, Spain

open access: yesData in Brief, 2018
Daily data of Global, Diffuse and Beam Horizontal Insolation and Global Vertical (North, South, East and West orientations) insolation recorded in Burgos, Spain, are presented in this paper.
M. Diez-Mediavilla   +4 more
doaj   +1 more source

Reconstruction of Helio-latitudinal Structure of the Solar Wind Proton Speed and Density [PDF]

open access: yes, 2015
The modeling of the heliosphere requires continuous three-dimensional solar wind data. The in-situ out-of-ecliptic measurements are very rare, so that other methods of solar wind detection are needed.
Bzowski, Maciej   +3 more
core   +2 more sources

Creating Cloud Segmentation Data Set Using Sky Images of Afyonkarahisar Region [PDF]

open access: yesE3S Web of Conferences
The use of sky images in solar radiation intensity estimation has been one of the most studied topics in the literature since it improves the estimation results.
Eşlik Ardan Hüseyin   +2 more
doaj   +1 more source

Photosynthetic Active Radiation, Solar Irradiance and the CIE Standard Sky Classification

open access: yesApplied Sciences, 2020
Plant growth is directly related to levels of photosynthetic photon flux density, Qp. The improvement of plant-growth models therefore requires accurate estimations of the Qp parameter that is often indirectly calculated on the basis of its relationship ...
Ana García-Rodríguez   +3 more
doaj   +1 more source

A Low-Cost Luxometer Benchmark for Solar Illuminance Measurement System Based on the Internet of Things

open access: yesSensors, 2022
Natural illumination has an important place in home automation applications. Among other advantages, it contributes to better visual health, energy savings, and lower CO2 emissions.
Omar Guillán Lorenzo   +4 more
doaj   +1 more source

The influence of solar wind variability on magnetospheric ULF wave power [PDF]

open access: yes, 2015
Magnetospheric ultra-low frequency (ULF) oscillations in the Pc 4–5 frequency range play an important role in the dynamics of Earth's radiation belts, both by enhancing the radial diffusion through incoherent interactions and through the coherent drift ...
Mann, IR   +3 more
core   +2 more sources

Research on participation of flywheel energy storage in wind farm frequency regulation control

open access: yesZhejiang dianli, 2022
In view of a whole series of problems such as the reduction of system inertia, the increase of frequency fluctuation, and the deterioration of power quality caused by large-scale wind power integration, a flywheel with high power density is designed for ...
ZHANG Jihong   +4 more
doaj   +1 more source

Virtual composite impedance circulating current suppression strategy with adaptive adjustment capability

open access: yesIET Generation, Transmission & Distribution, 2023
In the process of accessing distributed power sources in microgrid, there will be serious coupling between active power and reactive power, which will lead to significant changes in the inverter outlet voltage and impedance and increase the circulating ...
Jihong Zhang   +4 more
doaj   +1 more source

Design and implementation of a general batch simulation tool of SOWFA and its application in training a single-turbine surrogate

open access: yesEnergy Reports, 2023
Simulator fOr Wind Farm Applications (SOWFA) is a powerful wind farm simulation tool. It is widely used in wake effect research. However, the integration between AI and SOWFA is weak. Without AI, it is difficult for us to fully use SOWFA.
Tannan Xiao   +5 more
doaj   +1 more source

The Solar Wind as a Turbulence Laboratory [PDF]

open access: yesLiving Reviews in Solar Physics, 2005
In this review we will focus on a topic of fundamental importance for both astrophysics and plasma physics, namely the occurrence of large-amplitude low-frequency fluctuations of the fields that describe the plasma state. This subject will be treated within the context of the expanding solar wind and the most meaningful advances in this research field ...
BRUNO R, CARBONE, Vincenzo
openaire   +8 more sources

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