http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Zhongwen Wu (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Cheng Zhiping,Wang Kaifang,Li Zhongwen,Wu Haotian,Zhi Changyi,Zhang Jinbin 대한전기학회 2024 Journal of Electrical Engineering & Technology Vol.19 No.1
In this paper, distributed secondary control of AC microgrid (MG) is studied and the infuence of communication delay on its control performance is analyzed and verifed. Firstly, a secondary control strategy for the MG is designed to achieve frequency recovery and proportional active power dispatch. Secondly, the stability of the MG system is analyzed in the frequency domain and a rigorous formula is derived to calculate the delay margin for the stability of the distributed secondary control with communication delays. The theoretical calculation results of the stability margin are approximately consistent with the simulation results, with an error of only 1.27%. The efects of the algorithm gains, communication topology, and connection weights on the delay margin are discussed based on the derived formula. The results demonstrate that the algorithm gain is inversely proportional to the delay margin. Changes in the communication topology and connection weights lead to changes in the maximum eigenvalue of the adjacency matrix L, which in turn afects the delay margin. Moreover, the infuence of time-varying delays is considered. The system can tolerate greater time-varying delays than fxed delays. Simulation and experimental results validate the efectiveness and feasibility of the proposed method.
-
Physiological and omics analysis of maize inbred lines during late grain development
Jin Xining,Zhai Huijie,Wang Pingxi,Zhang Xiaoxiang,Wu Xiangyuan,Zhang Huaisheng,Chen Shilin,Huang Zhongwen 한국유전학회 2022 Genes & Genomics Vol.44 No.8
Background: There were significant differences in the change of moisture content and grain composition at the late stage of grain development among different maize varieties, but the regulation mechanism is not clear. Objective: To explore the key genes causing the variation in physiological traits of two typical maize inbred lines in late grain development. Methods: The grains at different development stages were selected as materials to determine the content of water, sucrose, starch and ABA. Transcriptomic and proteomic analysis of the materials were performed to screen relevant genes. Results: The grain dehydration rate and the content of sucrose, starch and ABA were showed significant differences between two varieties in the late stage of grain development. The enrichment analysis of common differentially expressed genes (proteins) showed that most of the genes (proteins) were enriched in the extracellular region. The downregulated genes were mainly concentrated in carbohydrate metabolism and lipid metabolism, while the upregulated genes were mainly in response to stress. Furthermore, this study also identified many key candidate genes (dehydrin genes, pathogenesis-related genes, sucrose synthase and secondary metabolites related genes) related to late grain development of maize. Conclusions: The suggested genes related to late grain development of maize can be candidates for further functional study.
-
Shuling Zhang,Jianxin Mu,Dianfu Ren,Fugui Zhou,Zhenhua Jiang,Zhongwen Wu,Guibin Wang 한국고분자학회 2010 Macromolecular Research Vol.18 No.12
An improvement in the processability of poly(ether ether ketone) (PEEK) and PEEK/carbon fiber (PEEK/CF) composites with less influence on the other properties is important. A novel high temperature lubricant, GENIOPLAST PELLETS (GPPS), was used to decrease the melt viscosity of PEEK and PEEK/CF composites. PEEK/GPPS and PEEK/CF/GPPS compounds were characterized by dynamic rheometry, universal tester, scanning electron microscopy (SEM), thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). The results showed that a small amount of GPPS could decrease the melt viscosity of the compounds during processing,and improve the dispersion uniformity of the carbon fiber in the PEEK matrix, and further enhance the tensile strength of PEEK/CF composites, but have little effect the thermal stability of the compounds.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
