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1,214 results on '"Li, Changjun"'

153. In-situ melting phenomena on W plasma-facing components for lower divertor during long-pulse plasma operations in EAST

Author

Zhu, Dahuan, primary, Guo, Zongxiao, additional, Xuan, Chuannan, additional, Yu, Baixue, additional, Li, Changjun, additional, Gao, Binfu, additional, Ding, Rui, additional, Yan, Rong, additional, Wang, Yang, additional, He, Chun Yu, additional, Yao, Damao, additional, Cao, Lei, additional, Zi, Pengfei, additional, Han, Le, additional, Wang, Bao Guo, additional, Fu, Wenxue, additional, Li, Yi, additional, and Chen, Junling, additional

Published
2023
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162. Shape-Memory Three-Dimensional Evaporators with High Portability for Efficient Solar-Driven Freshwater Production

Author

Zhang, Xintao, Liu, Ji, Han, Shuang, Li, Wei, Li, Changjun, Gao, Fu-Lin, Shu, Chao, Yu, Zhong-Zhen, and Li, Xiaofeng

Abstract

Solar-driven water evaporation can alleviate the severe water scarcity situation in a nonpolluting and sustainable manner. Although the design of integrated three-dimensional (3D) solar evaporators has been proven to be effective in achieving ultrahigh evaporation rates and energy efficiency, their scalable application is still hindered by complex manufacturing processes and poor portability. Herein, we report a highly portable shape-memory 3D solar evaporator by depositing MXene on low-cost lignin-cellulosic sponges for freshwater production. When not in use, the 3D evaporator can be compressed into a thin film with up to 89.3% volume reduction, ensuring minimal space occupation and high portability. When needed, due to the shape-memory effect, the 3D structure can be rapidly restored by swelling the compressed film in water, resulting in an efficient 3D solar evaporator. This 3D evaporator exhibits not only a high evaporation rate of 2.48 kg m–2h–1under 1 sun illumination but also excellent long-term stability and recyclability. In addition, the 3D evaporator itself can serve as a water reservoir without requiring a continuous water supply during evaporation, showing remarkable application flexibility. This work opens a new perspective for manufacturing highly portable and efficient 3D solar evaporators and may facilitate their progress from the laboratory to commercial applications.

Published
2023
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192. A Spectral Images Digital Watermarking Algorithm

Author

Ma, Long, Li, Changjun, Song, Shuni, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Hao, Yue, editor, Liu, Jiming, editor, Wang, Yu-Ping, editor, Cheung, Yiu-ming, editor, Yin, Hujun, editor, Jiao, Licheng, editor, Ma, Jianfeng, editor, and Jiao, Yong-Chang, editor

Published
2005
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193. Influence of high temperature on the residual physical and mechanical properties of foamed concrete

Author

Tan, Xianjun, Chen, Weizhong, Wang, Jiuhong, Yang, Diansen, Qi, Xianyin, Ma, Yongshang, Wang, Xu, Ma, Shaosen, and Li, Changjun

Subjects
Concretes -- Laws, regulations and rules -- Analysis -- Mechanical properties -- Reports, Temperature -- Influence -- Analysis -- Reports, Business, Construction and materials industries
Abstract

ABSTRACT To study the influence of high temperature on the properties of foamed concrete, four densities of foamed concrete (300 kg/[m.sup.3], 450 kg/[m.sup.3], 600 kg/[m.sup.3] and 800 kg/[m.sup.3]) were taken [...]

Published
2017
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