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Your search keyword '"Xiong, Qingwen"' showing total 23 results
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23 results on '"Xiong, Qingwen"'

20. Coupled Analysis of Heat Transfer in a Molten Pool With Three-Layer Configuration

Author

Deng, Jian, Zhu, Dahuan, Luo, Yuejian, Sun, Hongping, Zhang, Ming, Liu, Lili, Xiang, Qingan, Wu, Xiaoli, Xu, Youyou, and Xiong, Qingwen

Subjects
Economics and Econometrics, Fuel Technology, Renewable Energy, Sustainability and the Environment, Energy Engineering and Power Technology
Abstract

Understanding a reliable description of the heat transfer in the molten pool with three-layer configuration is inevitable for the design of severe accident mitigation measures in research reactors, such as IVR-ERVC. However, investigations on a thick lower metallic layer are scarce. Thus, further studies on heat transfer in a molten pool with a thick lower metallic layer are highly required, based on previous severe accident studies in light water reactors. This study conducts a numerical simulation of heat transfer in the molten pool with a thick lower metallic layer during a severe accident, combining model development, code verification, and code application. First, the MPCAP code has been developed, based on the coupled simulation of natural convection inside the molten pool, two-dimensional heat conduction in the RPV lower head, and convection outside the reactor vessel wall. Then, a verification case has been conducted using three-layer configuration in AP1000. The AP1000 verification case indicates that the MPCAP code predicts important parameters in the molten pool well.

Published
2022
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22. [The dynamic concision for three-dimensional reconstruction of human organ built with virtual reality modeling language (VRML)].

Author

Yu Z, Zheng S, Chen H, Wang J, Xiong Q, Jing W, and Zeng Y

Subjects
Aged, Algorithms, Humans, Male, Image Processing, Computer-Assisted methods, Imaging, Three-Dimensional methods, Programming Languages, Software
Abstract

This research studies the process of dynamic concision and 3D reconstruction from medical body data using VRML and JavaScript language, focuses on how to realize the dynamic concision of 3D medical model built with VRML. The 2D medical digital images firstly are modified and manipulated by 2D image software. Then, based on these images, 3D mould is built with VRML and JavaScript language. After programming in JavaScript to control 3D model, the function of dynamic concision realized by Script node and sensor node in VRML. The 3D reconstruction and concision of body internal organs can be formed in high quality near to those got in traditional methods. By this way, with the function of dynamic concision, VRML browser can offer better windows of man-computer interaction in real time environment than before. 3D reconstruction and dynamic concision with VRML can be used to meet the requirement for the medical observation of 3D reconstruction and has a promising prospect in the fields of medical image.

Published
2006

23. [Application of virtual reality modeling language in the fields of medical digital image].

Author

Yu Z, He S, Xiong Q, Jing W, Chen H, and Chen H

Subjects
Software, Image Processing, Computer-Assisted methods, Imaging, Three-Dimensional methods, Programming Languages
Abstract

This research aims at the process of three-dimensional(3D) reconstruction from medical body data using VRML and VC++, JavaScript language and focuses on the application of VRML for 3D reconstruction of medical digital images. The 2D medical digital images firstly are modified in VC++ language. Then, the images are manipulated by mould built in VRML and modified in JavaScript language. Finally, the 3D reconstruction of body internal organs can be formed in high quality near to those got in traditional methods. Furthermore, VRML browser can offer better windows of man-computer interaction in real time environment. As a new method and tool quite different from traditional ways of 3D reconstruction, VRML is useful for the visualization of medical 3D reconstruction based on 2D images and has a promising prospect in the field of medical image.

Published
2003

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