Results 51 to 60 of about 294,503 (303)

Experimental system design for online characterization and performance analysis of PV module under distinguish environmental conditions

open access: yesEAI Endorsed Transactions on Energy Web, 2020
This paper is a novel attempt to evaluate the performance of photovoltaic (PV) modules using current-voltage (I-V) and power-voltage (P-V) characteristics.
Rahul Anand   +3 more
doaj   +1 more source

Designing optimal solar water pumping stations for irrigation of agricultural lands

open access: yesPrzegląd Naukowy Inżynieria i Kształtowanie Środowiska, 2023
An investigation into the design of a stand-alone solar water pumping station for supplying rural areas is presented. It includes a study of system components and their modeling.
Gundolf HAASE   +3 more
doaj   +1 more source

Metastable Defects Decrease the Fill Factor of Solar Cells

open access: yesPhysical Review Applied, 2023
Cu(In,Ga)Se2 based solar cells exceed power conversion efficiencies of 23 %. Yet, the fill factor of these solar cells, with best values around 80 %, is relatively low (Si reaches 84.9%) mostly due to diode factors greater than one. Recently, we proposed metastable defects, a general feature of the Cu(In,Ga)Se2 alloy, to be the origin of the increased ...
Thomas Paul Weiss   +6 more
openaire   +3 more sources

Modeling Fill Factor Losses in Organic Solar Cells [PDF]

open access: yes, 2023
Determining how certain electronic devices can outperform other devices is of immense interest in the modern world. Many advance experimental characterization techniques have been applied such as X-ray diffraction, scanning electron microscopy, and ...
Kramer, Aaron A
core  

The Impact of Curviness on Four Different Image Sensor Forms and Structures

open access: yesSensors, 2018
The arrangement and form of the image sensor have a fundamental effect on any further image processing operation and image visualization. In this paper, we present a software-based method to change the arrangement and form of pixel sensors that generate ...
Wei Wen, Siamak Khatibi
doaj   +1 more source

High efficiency dye-sensitized solar cells with a novel two dimensional Cd-V-LDH photoanode

open access: yesFrontiers in Materials, 2023
The present study demonstrates a novel photoanode layer double hydroxide (LDH) for dye-sensitized solar cells (DSSCs). The search for a photoanode (PA) with low cost and high power conversion efficiency (PCE) has become one of the most significant ...
Samar H. Bendary   +2 more
doaj   +1 more source

Factors Associated with Nephrology Fellowship Program Fill Rates [PDF]

open access: yesClinical Journal of the American Society of Nephrology, 2020
As roughly 60% of nephrology fellowship training tracks go unfilled each year, the nephrology community continues to search for explanations for this long-term trend ([1][1]). Although numerous reasons are proposed for the shortage of trainees entering the field ([2][2]), there has been no ...
Caroline L, Matchett   +2 more
openaire   +2 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Rotor Design for an Efficient Single-Phase Induction Motor for Refrigerator Compressors

open access: yesEnergies, 2016
This article describes a rotor making technology for the production of high-efficiency single-phase induction motors (SPIMs) to be used in refrigerator compressors. Rotors can have different aluminum fill factors according to the fabrication method.
Hyun-Jin Ahn   +4 more
doaj   +1 more source

Computer-aided measurement technology for Cu2ZnSnS4 thin-film solar cell characteristics

open access: yesOpen Physics, 2022
Currently, there are more perfect theoretical basis and operation methods for the research of the Cu2ZnSnS4 (CZTS) solar cell characteristics, but the experimental process is tedious.
Li Qian   +7 more
doaj   +1 more source

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