We recently developed a galvanostatic maximum power point output (MPPT) algorithm for high-hysteresis perovskite solar cells (PSCs), enabling continuous and precise power tracking. Here, we present a protocol for assembling the tracker, implementing the algorithm on a microcontroller, and conducting JV scans and stabilized output power (SOP) or traditional perturb and observe (P&O) tracking for small-area photovoltaic cells. We also describe steps for collecting, storing, and plotting data and explain the device's operational modes and functions. For complete details on the use and execution of this protocol, please refer to Juarez-Perez et al..
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http://dx.doi.org/10.1016/j.xpro.2024.103394 | DOI Listing |
Front Neurol
December 2024
Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Objective: This study initiated a preliminary computational fluid dynamics (CFD)-based study to investigate the relationship between quantitative hemodynamics of arteriovenous malformation (AVM) draining veins and rupture.
Methods: The quantitative hemodynamics of AVM draining veins were generated from computed tomography angiography (CTA)-based steady-state CFD models. Morphological and hemodynamic parameters were compared between the ruptured and unruptured groups.
Front Public Health
December 2024
Department of Statistics, College of Science, Bahir Dar University, Bahir Dar, Ethiopia.
Introduction: Dynamic Bayesian networks improve the modeling of complex systems by incorporating continuous probabilistic relationships between covariates that change over time. This study aimed to analyze the complex causal links contributing to child undernutrition using dynamic Bayesian network modeling, examining both the best- and worst-case scenarios. The Young Cohort of the Ethiopian Young Lives dataset from 2002-2016 was used to analyze the complex relationships among various covariates influencing child undernutrition.
View Article and Find Full Text PDFAdv Mater
December 2024
Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China.
The rapidly increased efficiency of perovskite solar cells (PSCs) indicates their broad commercial prospects, but the commercialization of perovskite faces complex optimization processes and stability issues. In this work, a simple optimized strategy is developed by the addition of trimethylgermanium chloride (TGC) into FACsPbI precursor solution. TGC triggers the successive interactions in perovskite solution and film, involving the hydrolysis of vulnerable Ge─Cl bond forming Ge─OH group, then forming the hydrogen bonds (O─H···N and O─H···I) with FAI.
View Article and Find Full Text PDFACS Appl Mater Interfaces
December 2024
College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China.
High-performance, environmentally friendly indium phosphide (InP)-based quantum dots (QDs) are urgently needed to meet the demands of rapidly evolving display and lighting technologies. By adopting the highly efficient and cost-effective one-pot method and utilizing aluminum isopropoxide (AIP) as the Al source, a series of Al-doped InP/(Al)ZnS QDs with emission maxima ranging from 480 to 627 nm were synthesized. The photoluminescence quantum yield (PLQY) of the blue, green, yellow, orange, and red QDs, with emission peaks at 480, 509, 560, 600, and 627 nm, reached 34%, 62%, 86%, 96%, and 85%, respectively.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, PR China. Electronic address:
Phosphorylation is an important modification to modulate functional and digestive properties of starches. We systematically investigated starch phosphorylation process parameters by using two different preparation methods (slurry and semi-dry conditions) and four commonly used phosphorylating agents, namely sodium tripolyphosphate (STPP), sodium trimetaphosphate (STMP), STMP/STPP (99: 1), and sodium phytate (SP). The effects of phosphorylation on physicochemical characteristics, techno-functionalities, digestive properties and structural features of corn starch were analyzed.
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