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Your search keyword '"Liang, Zipeng"' showing total 20 results
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20 results on '"Liang, Zipeng"'

19. A Data-Driven Convex Model for Hybrid Microgrid Operation With Bidirectional Converters

Author

Liang, Zipeng, Dong, Zhaoyang, Li, Chaojie, Wu, Chenye, and Chen, Haoyong

Abstract

Bi-directional converters (BDCs) facilitate the high efficiency of hybrid AC/DC microgrids (HMs). However, the HM operation is rather challenging due to the non-convex system model. This letter develops a data-driven convex model for HM operation involving BDCs. First, a least squares approximation method with data-driven weight functions is proposed to linearize BDC efficiency behavior. Then, the convex linear HM model is formulated by combining this linearized model with an analysis of the conditions ensuring non-simultaneous BDC inverting and rectifying operations. The low approximation error and high computational efficiency of the proposed model are demonstrated based on an analysis of numerical studies.

Published
2023
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20. The OsAGO2–OsNAC300–OsNAP module regulates leaf senescence in rice.

Author

Zheng, Shaoyan, Chen, Junyu, He, Ying, Lu, Jingqin, Chen, Hong, Liang, Zipeng, Zhang, Junqi, Liu, Zhenlan, Li, Jing, and Zhuang, Chuxiong

Abstract

ABSTRACT Leaves play a crucial role in the growth and development of rice (Oryza sativa) as sites for the production of photosynthesis. Early leaf senescence leads to substantial drops in rice yields. Whether and how DNA methylation regulates gene expression and affects leaf senescence remains elusive. Here, we demonstrate that mutations in rice ARGONAUTE 2 (OsAGO2) lead to premature leaf senescence, with chloroplasts in Osago2 having lower chlorophyll content and an abnormal thylakoid structure compared with those from wild‐type plants. We show that OsAGO2 associates with a 24‐nt microRNA and binds to the promoter region of OsNAC300, which causes DNA methylation and suppressed expression of OsNAC300. Overexpressing OsNAC300 causes the similar premature leaf senescence as Osago2 mutants and knocking out OsNAC300 in the Osago2 mutant background suppresses the early senescence of Osago2 mutants. Based on yeast one‐hybrid, dual‐luciferase, and electrophoresis mobility shift assays, we propose that OsNAC300 directly regulates transcription of the key rice aging gene NAC‐like, activated by APETALA3/PISTILLATA (OsNAP) to control leaf senescence. Our results unravel a previously unknown epigenetic regulatory mechanism underlying leaf senescence in which OsAGO2–OsNAC300–OsNAP acts as a key regulatory module of leaf senescence to maintain leaf function. [ABSTRACT FROM AUTHOR]

Published
2024
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