Results 21 to 30 of about 29,303 (256)
Frontiers in Nutrition, 2021 The dietary needs of humans for provitamin A carotenoids arise from their inability to synthesize vitamin A de novo. To improve the status of this essential micronutrient, special attention has been given to biofortification of staple foods, such as ...
Shu Yu, Li Tian
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Grid-Synchronization Stability Analysis for Multi DFIGs Connected in Parallel to Weak AC Grids
Energies, 2019 Recent works have shown that phase-locked loop (PLL) synchronized wind turbines (WTs) suffer stability issues when integrated into weak grids. However, most of the current studies are limited to a single machine case, the interactions among the WTs are ...
Dong Wang +4 more
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Semina: Ciências Exatas e Tecnológicas, 2017 Os Sistemas de Energia Renovável (SER) tornaram-se uma alternativa atrativa frente às fontes de energia convencional, devido à necessidade de diversificar a matriz energética e assim garantir o abastecimento da demanda futura de eletricidade de uma forma
Sebastián Manrique Machado +1 more
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IEEE Access, 2021 Synchronization is the key part to ensure the high performance of grid-connected systems. Phase-locked loop (PLL) is one of the most popular synchronizations due to its simple implementation and robustness under certain grid variations.
Jinming Xu +4 more
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Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2018 The paper presents the results of simulation of a detector, implemented on the basis of a phase locked loop device (PLL), the mathematical modeling of signals with 8-QAM modulation, and investigates the influence of PLL parameters on the receiving ...
I. P. Maksymiv +3 more
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Mathematics, 2022 Today, and especially with the growing interest in distributed renewable energy sources (DRESs), modern electric power systems are becoming more and more complex. In order to increase DRES penetration, grid side converter (GSC) control techniques require
Mansoor Alturki +3 more
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Design of a fast-acquisition phase-locked loop for frequency control systems
Dianzi Jishu YingyongPhase-locked loop (PLL) is a negative feedback control system that can achieve phase synchronization of two signals. Its filtering effect can make its passband narrow, and its output frequency automatically track the input frequency.
Chang Jian +4 more
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Advanced Functional Materials, EarlyView.A traditional Chinese medicine‐derived carbon dots nanoplatform reprograms tumor cell death from apoptosis to necroptosis, dismantling therapy‐induced collagen barriers and promoting immunogenic death. pH‐responsive hydrogel assembled from carbon dots for localized delivery, this strategy suppresses primary tumors and metastasis, offering a new ...
Zekun Yan +11 more
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Tissue Engineered Human Elastic Cartilage From Primary Auricular Chondrocytes for Ear Reconstruction
Advanced Functional Materials, EarlyView.Despite over three decades of research, no tissue‐engineered solution for auricular reconstruction in microtia patients has reached clinical translation. The key challenge lies in generating functional elastic cartilage ex vivo. Here, we integrate synergistic cell‐biomaterial strategies to engineer auricular grafts with mechanical and histological ...
Philipp Fisch +13 more
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Polylysine complexes and their biomedical applications
Engineered Regeneration, 2023 Poly-L-lysine (PLL) is a water-soluble biopolymer consist of repeating unit of L-lysine. It displays intrinsic non-antigenicity, antibacterial property, biocompatibility, and biodegradability, and facile synthesis procedure, therefore has attracted ...
Haofang Zhu +3 more
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