Search

Your search keyword '"Zheng, Yiwei"' showing total 49 results
Start Over Author "Zheng, Yiwei" Publication Year Range Last 3 years
49 results on '"Zheng, Yiwei"'

1. On some classification of finite-dimensional Hopf algebras over the Hopf algebra $H_{b:1}^*$ of Kashina

Author

Zheng, Yiwei, Gao, Yun, Hu, Naihong, and Shi, Yuxing

Subjects
Mathematics - Quantum Algebra, 16T05, 16T99
Abstract

Let $H$ be the dual of $16$-dimensional nontrivial semisimple Hopf algebra $H_{b:1}$ in the classification work of Kashina \cite{K00}. We completely determine all finite-dimensional Nichols algebras satisfying $\mathcal{B}(N)\cong \bigotimes_{i\in I}\mathcal{B}(N_i)$, where $N=\bigoplus_{i\in I}N_i$, each $N_i$ is a simple object in $_H^H\mathcal{YD}$. Under this assumption, we classify all those Hopf algebras of finite-dimensional growth from the semisimple Hopf algebra $H$ via the relevant Nichols algebras $\mathcal B(N)$., Comment: 22 pages

Published
2022
Full Text
View/download PDF

6. Optimal Multi-agent Collision-Free Path Planning with Temporal Logic Constraints

Author

Zheng, Yiwei, Liu, Zhaocong, Lai, Aiwen, Yu, Xiao, Lan, Weiyao, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Ren, Zhang, editor, Wang, Mengyi, editor, and Hua, Yongzhao, editor

Published
2023
Full Text
View/download PDF

35. On some classification of finite-dimensional Hopf algebras over the Hopf algebra Hb:1* of Kashina.

Author

Zheng, Yiwei, Gao, Yun, Hu, Naihong, and Shi, Yuxing

Subjects
HOPF algebras, SEMISIMPLE Lie groups, ALGEBRA, CLASSIFICATION
Abstract

Let H be the dual of 16-dimensional nontrivial semisimple Hopf algebra H b : 1 in the classification work of Kashina [22]. We completely determine all finite-dimensional Nichols algebras satisfying B (N) ≅ ⊗ i ∈ I B (N i) , where N = ⊕ i ∈ I N i , each Ni is a simple object in H H Y D. Under this assumption, we classify all those Hopf algebras of finite-dimensional growth from the semisimple Hopf algebra H via the relevant Nichols algebras B (N). [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

38. 彩色计算全息3D显示技术

Author

Wang Di, 王迪, primary, Hou Yehao, 侯页好, additional, Huang Qian, 黄倩, additional, Zheng Yiwei, 郑义微, additional, and Wang Qionghua, 王琼华, additional

Published
2022
Full Text
View/download PDF

41. 彩色计算全息3D显示技术

Author

王迪 Wang Di, 侯页好 Hou Yehao, 黄倩 Huang Qian, 郑义微 Zheng Yiwei, and 王琼华 Wang Qionghua

Subjects
Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2022

42. Early-Awareness Collision Avoidance in Optimal Multi-Agent Path Planning With Temporal Logic Specifications

Author

Zheng, Yiwei, Lai, Aiwen, Yu, Xiao, and Lan, Weiyao

Abstract

Dear Editor, This letter investigates a multi-agent path planning problem in a road network with the requirement of avoiding collisions among all agents in the partitioned environment. We first abstract the agents to a set of transition systems, and construct a team transition system from these individual systems. A mechanism is designed for the team transition system to detect all collisions within the synthesized run. Then, “wait” and “go-back” transitions are added to the individual transition systems, while removing all possible collisions in the team transition system. Finally, two examples are given to illustrate the effectiveness of the proposed approach.

Published
2023
Full Text
View/download PDF

44. Achieving Rapid Ultralow-Temperature Ion Transfer via Constructing Lithium-Anion Nanometric Aggregates to Eliminate Li + -Dipole Interactions.

Author

Zheng Y, Ji H, Qian T, Li S, Liu J, Zhou J, Wang Z, Li Y, and Yan C

Abstract

Sluggish desolvation in extremely cold environments caused by strong Li + -dipole interactions is a key inducement for the capacity decline of a battery. Although the Li + -dipole interaction is reduced by increasing the electrolyte concentration, its high viscosity inevitably limits ion transfer at low temperatures. Herein, Li + -dipole interactions were eliminated to accelerate the migration rate of ions in electrolytes and at the electrode interface via designing Li + -anion nanometric aggregates (LA-nAGGs) in low-concentration electrolytes. Li + coordinated by TFSI - and FSI - anions instead of a donor solvent promotes the formation of an inorganic-rich interfacial layer and facilitates Li + transfer. Consequently, the LA-nAGG-type electrolyte demonstrated a high ionic conductivity (0.6 mS cm -1 ) at -70 °C and a low activation energy of charge transfer (38.24 kJ mol -1 ), enabling Li||NiFe-Prussian blue derivative cells to deliver ∼83.1% of their room-temperature capacity at -60 °C. This work provides an advanced strategy for the development of low-temperature electrolytes.

Published
2023
Full Text
View/download PDF

45. Surpassing the Redox Potential Limit of Organic Cathode Materials via Extended p-π Conjugation of Dioxin.

Author

Zheng Y, Ji H, Liu J, Wang Z, Zhou J, Qian T, and Yan C

Subjects
Electrodes, Electrons, Lithium chemistry, Oxidation-Reduction, Dioxins
Abstract

The key to enabling high energy density of organic energy-storage systems is the development of high-voltage organic cathodes; however, the redox voltage (<4.0 V vs Li/Li + ) of state-of-the-art organic electrode materials (OEMs) remains unsatisfactory. Herein, we propose a novel dibromotetraoxapentacene (DBTOP) redox center to surpass the redox potential limit of OEMs, achieving ultrahigh discharge plateaus of approximately 4.4 V (vs Li + /Li). As theoretically analyzed, electron delocalization between dioxin active centers and benzene rings as well as electron-withdrawing bromine atoms endows the molecule with a low occupied molecular orbital level by diluting the electron density of dioxin in the whole p-π conjugated skeleton, and the strong π-π interactions among the DBTOP molecules provide a faster electrochemical kinetic pathway. This tetraoxapentacene redox center makes the working voltage of OEMS closer to the high-voltage inorganic electrodes, and its chemical and structural tunability may stimulate the further development of high-voltage organic cathodes.

Published
2022
Full Text
View/download PDF

46. Northern Wei Dynasty.

Author

Zheng, Yiwei

Subjects
Social change, Northern Wei dynasty, China, 386-534, Xianbei (Asian people)
Abstract

The Northern Wei (way) Dynasty, the most powerful of northern Chinese dynasties before the reunification of China under the Sui and Tang Dynasties, was founded by Toba tribesmen whose ancestry can be traced to the Xiongnu, a proto-Mongol, or proto-Turkish people. In the late fourth century c.e., the Toba invaded the weak north China states. They named their kingdom Wei after they took over Shanxi Province, and by 439 c.e., they had unified all of north China.

Published
2022

47. Huangdi.

Author

Zheng, Yiwei

Subjects
Chinese mythology, Taoism, Huangdi, Emperor of China (Legendary character)
Abstract

Military Leader. The Chinese people often declare themselves to be the descendants of Huangdi (HEWAHNG-dee), a half-real, half-legendary personage. Huangdi was the son of Shao-dian, and he got the name Huangdi, which means “yellow emperor,” because he was regarded to have the virtues of the earth, whose soil is yellow. He ruled an area stretching east to the sea, west to present-day Gansu Province in China, south to the Yangtze River, and north to present-day Shanxi and Hebei Provinces. He married Leizu, who gave birth to twenty-five sons. The legends say that Huangdi died when he was more than 100 years old. He was buried in Qiao Shan in Shanxi Province.

Published
2022

48. Yue ware.

Author

Zheng, Yiwei

Subjects
Chinese pottery -- To 618, Celadon ware, Yue ware
Abstract

Yue (YEW-eh) ware was a type of ceramics made in Yue kilns in Zhejiang Province, China, in the period of disunity after the collapse of the Han Dynasty (Three Kingdoms, Western and Eastern Jin Dynasties, Southern and Northern Dynasties). In general, ceramics can be divided into two basic categories: low-fired wares (earthenware or pottery), which are relatively soft and porous, suitable for funerary vessels and tomb sculptures, and high-fired wares (porcelain), which are relatively hard, durable, and impervious to water, suitable for everyday use. Most of Yue wares were low-fired wares. Yue ware is distinguished by its greenish glaze. The potters at the Yue kilns learned to apply greenish liquid glazes to their wares before firing. These early greenish glazes gradually developed into the green glazes on wares popularly known as celadon.

Published
2022

49. Cai Lun.

Author

Zheng, Yiwei

Subjects
Chinese history, Eunuchs, Cai Lun, d. 121
Abstract

Cai Lun (TSAHI lewn), a eunuch, worked as a court official in the Eastern Han Dynasty. After he invented paper, he was promoted by Emperor Han Hedi and became rich. Later he got involved in palace intrigue and ended his life drinking poison.

Published
2022

Catalog

Books, media, physical & digital resources
See catalog results