Results 91 to 100 of about 144,649 (295)

Estimation and Assessment of Partial Shading Patterns in Large PV Farms Using ANN Algorithm

open access: yesIEEE Access
The use of technology to optimize electricity from photovoltaic (PV) farms is growing. Partial shading often occurs in PV farms owing to cloud movement or dust on the PV modules.
Efendi S Wirateruna   +2 more
doaj   +1 more source

Feature Lines for Illustrating Medical Surface Models: Mathematical Background and Survey

open access: yes, 2015
This paper provides a tutorial and survey for a specific kind of illustrative visualization technique: feature lines. We examine different feature line methods.
A. Chu   +24 more
core   +1 more source

Global MPPT optimization for partially shaded photovoltaic systems

open access: yesScientific Reports
The global demand for electrical energy has witnessed a substantial increase, presenting a challenge for power systems worldwide. In addition to technical considerations, the escalating issue of global warming has become a paramount concern in the planning studies of various sectors.
T. Nagadurga   +5 more
openaire   +3 more sources

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula   +7 more
wiley   +1 more source

Degradation effects in sc-Si PV modules subjected to natural and induced ageing after several years of field operation [PDF]

open access: yes, 2012
This paper presents ageing effects observed in sc-Si PV modules operating in field conditions for 18 and over 22 years. The effects of both natural ageing processes and induced ageing by external agents, causing partial or total shading of cells for a ...
Kaplani, E.
core  

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

An Innovative Transition Unit for Voltage Regulation in Solar Panel Systems

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ
Partial shading continues to pose a substantial obstacle in photovoltaic (PV) systems, frequently resulting in substantial decreases in system efficiency and energy output.
Mahmood S. Wahhab   +3 more
doaj   +1 more source

Improvement of Shade Resilience in Photovoltaic Modules Using Buck Converters in a Smart Module Architecture

open access: yesEnergies, 2018
Partial shading has a nonlinear effect on the performance of photovoltaic (PV) modules. Different methods of optimizing energy harvesting under partial shading conditions have been suggested to mitigate this issue.
S. Zahra Mirbagheri Golroodbari   +2 more
doaj   +1 more source

Photometric stereo for strong specular highlights

open access: yes, 2017
Photometric stereo (PS) is a fundamental technique in computer vision known to produce 3-D shape with high accuracy. The setting of PS is defined by using several input images of a static scene taken from one and the same camera position but under ...
Boroujerdi, Ali Sharifi   +2 more
core   +1 more source

The Impact of Partial Shading on the Photovoltaic Outcomes

open access: yes, 2019
Photovoltaic cells operate outdoors subjected to various climatic conditions such as solar radiation, temperature, dust and shade. The partial shadow resulted from clouds, dust, buildings and trees adjacent to the cell has a negative impact on the productivity of these cells.
openaire   +2 more sources

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