Search

Your search keyword '"Liu, Zhibing"' showing total 232 results
Start Over Author "Liu, Zhibing" Search Limiters Full Text
232 results on '"Liu, Zhibing"'

6. Sorting OAM modes with metasurfaces based on raytracing improved optical coordinate transformation

Author

Liu, Zhibing, Zou, Jiahui, Lai, Zhaoyu, Tu, Jiajing, Gao, Shecheng, Liu, Weiping, and Li, Zhaohui

Subjects
Physics - Optics
Abstract

Optical coordinate transformation (OCT) has attracted widespread attention in the field of orbital angular momentum (OAM) (de)multiplexing or manipulation, but the performance of OCT would suffer from its distortion. In this paper, we quantitatively analyze the distortion of OCT from the perspective of ray optics, and explain its rationality to work under non-normal incident light. For the special case of log-polar coordinate transformation (LPCT), we use a raytracing assisted optimization scheme to improve its distortion, which is related to a Zernike polynomial based phase compensation. After raytracing optimization, the root mean square error (RMSE) of the focused rays is reduced to 1/5 of the original value and the physical optic simulation also shows great improvement. In the experiment, we use three phase masks which are realized by metasurfaces, the measured results show well consistency with the simulation. Results in this paper have great potential to improve the performance of OCT related applications., Comment: 10 pages, 5 figues, submitted to optics express

Published
2021
Full Text
View/download PDF

11. Daisy: Data analysis integrated software system for X-ray experiments

Author

Hu, Yu, Li, Ling, Tian, Haolai, Liu, Zhibing, Huang, Qiulan, Zhang, Yi, Hu, Hao, and Qi, Fazhi

Subjects
High Energy Physics - Experiment
Abstract

Daisy (Data Analysis Integrated Software System) has been designed for the analysis and visualization of the X-ray experiments. To address an extensive range of Chinese radiation facilities community's requirements from purely algorithmic problems to scientific computing infrastructure, Daisy sets up a cloud-native platform to support on-site data analysis services with fast feedback and interaction. The plugs-in based application is convenient to process the expected high throughput data flow in parallel at next-generation facilities such as the High Energy Photon Source (HEPS). The objectives, functionality and architecture of Daisy are described in this article.

Published
2021
Full Text
View/download PDF

14. MPSUM: Entity Summarization with Predicate-based Matching

Author

Wei, Dongjun, Gao, Shiyuan, Liu, Yaxin, Liu, Zhibing, and Hang, Longtao

Subjects
Computer Science - Information Retrieval
Abstract

With the development of Semantic Web, entity summarization has become an emerging task to generate concrete summaries for real world entities. To solve this problem, we propose an approach named MPSUM that extends a probabilistic topic model by integrating the idea of predicate-uniqueness and object-importance for ranking triples. The approach aims at generating brief but representative summaries for entities. We compare our approach with the state-of-the-art methods using DBpedia and LinkedMDB datasets.The experimental results show that our work improves the quality of entity summarization., Comment: 6 pages, accepted in EYRE@CIKM'2018

Published
2020

24. Influence Analysis of Convective Heat Transfer of Circular Tubes and Flat Plates in a Polar Environment

Author

Yu Dongwei, Liu Zhibing, Wu Gang, Han Xueyang, Wang Guojun, and Zhang Dayong

Subjects
polar region, convective heat transfer, experimental measurement, numerical simulation, constant heat flux, General Works
Abstract

Electric heating serves as a major cold-proof measure because engineering equipment often loses efficacy in harsh weather conditions in a polar environment. Because Convective heat transfer is the key issue to solve the cold-proof design, this paper analyzes convective heat transfer of tube and plate in the constant heat flow heating mode. According to fluent numerical simulation analysis with a wind speed of 0–40 m/s and a temperature of −40°C–0°C, both an increase in wind speed and a decrease in temperature would cause the growth of the convective heat transfer coefficient of circular tubes and flat plates, Wind speed displayed a more significant impact on convective heat transfer. In a low-temperature laboratory, a model experiment of convective heat transfer was carried out to validate the reliability of the numerical simulation. Last, a prediction model for convective heat transfer coefficient of circular tubes and flat plates in polar environment was developed using numerical and experimental data.

Published
2022
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results