Results 21 to 30 of about 756,421 (298)

The UTMOST: A hybrid digital signal processor transforms the MOST [PDF]

open access: yes, 2017
The Molonglo Observatory Synthesis Telescope (MOST) is an 18,000 square meter radio telescope situated some 40 km from the city of Canberra, Australia. Its operating band (820-850 MHz) is now partly allocated to mobile phone communications, making radio ...
Bailes, M.   +22 more
core   +2 more sources

A Unified Approach for Analysis of Faults in Different Configurations of PV Arrays and Its Impact on Power Grid

open access: yesEnergies, 2019
Fault analysis in photovoltaic (PV) arrays is considered important for improving the safety and efficiency of a PV system. Faults do not only reduce efficiency but are also detrimental to the life span of a system.
Saba Gul   +4 more
doaj   +1 more source

A hierarchical architecture for increasing efficiency of large photovoltaic plants under non-homogeneous solar irradiation [PDF]

open access: yes, 2019
Under non-homogeneous solar irradiation, photovoltaic (PV) panels receive different solar irradiance, resulting in a decrease in efficiency of the PV generation system.
Binh Doan Van   +8 more
core   +1 more source

A Novel Topology to Improve PV Module Efficiency under Partial Shading Conditions

open access: yesInternational Journal of Photoenergy, 2022
In this paper, we investigate the power degradation in a novel photovoltaic (PV) cell reconfiguration named KenDoKu (KDK) topology under different shading patterns.
Dominique Bonkoungou   +6 more
doaj   +1 more source

New high performance PV system architecture for mitigation of partial shading effects

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
Partial shading (PS) is a common phenomenon that significantly affects the performance of photovoltaic (PV) systems. Various techniques such as maximum power tracking (MPPT), PV module interconnection and reconfiguration, and power electronics- based ...
Subhash Murkute   +1 more
doaj   +1 more source

A Catalog of Point Sources Towards NGC 1333 [PDF]

open access: yes, 2015
I present a catalog of point source objects towards NGC 1333, resolving a wide variety of confusion about source names (and occasionally positions) in the literature.
Rebull, L. M.
core   +2 more sources

The flux-dependent X-ray time lags in NGC 4051 [PDF]

open access: yes, 2013
We present an analysis of the X-ray time lags for the highly variable Seyfert 1 galaxy NGC 4051, based on a series of XMM-Newton observations taken in 2009. We investigate the Fourier frequency dependent time lags in the light curves between the 0.3--1.0
Alston, W. N., Uttley, P., Vaughan, S.
core   +2 more sources

Large enhancement of total reaction cross sections at the edge of the island of inversion in Ti, Cr, and Fe isotopes [PDF]

open access: yesPhysical Review C, 2022
13 pages, 10 figures, to appear in Phys.
W. Horiuchi, T. Inakura, S. Michimasa
openaire   +3 more sources

Outdoor evaluation of total cross-tied Si module under driving conditions

open access: yesSolar Energy Materials and Solar Cells
This paper presents the fabrication and evaluation of a total cross-tied (TCT) Si module designed to mitigate the partial shading effect, which is known to reduce the output performance of vehicle-integrated photovoltaic (VIPV) modules. The TCT module, consisting of 27 Si solar cells interconnected both vertically and horizontally, demonstrated an 18.8
Yasuyuki Ota   +6 more
openaire   +2 more sources

Intelligent Reconfigurable Photovoltaic System

open access: yesEnergies, 2021
The global maximum power point tracking of a PV array under partial shading represents a global optimization problem. Conventional maximum power point tracking algorithms fail to track the global maximum power point, and global optimization algorithms do
Ekaterina Engel   +3 more
doaj   +1 more source

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