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Your search keyword '"Cai, Zheyi"' showing total 12 results
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12 results on '"Cai, Zheyi"'

1. NLFA: A Non Local Fusion Alignment Module for Multi-Scale Feature in Object Detection

Author

Xue, Honghui, Ma, Jinshan, Cai, Zheyi, Fu, Junfang, Guo, Feng, Weng, Wei, Dong, Yunxin, Zhang, Zhenchang, Ceccarelli, Marco, Series Editor, Agrawal, Sunil K., Advisory Editor, Corves, Burkhard, Advisory Editor, Glazunov, Victor, Advisory Editor, Hernández, Alfonso, Advisory Editor, Huang, Tian, Advisory Editor, Jauregui Correa, Juan Carlos, Advisory Editor, Takeda, Yukio, Advisory Editor, Carbone, Giuseppe, editor, Laribi, Med Amine, editor, and Jiang, Zhiyu, editor

Published
2023
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10. Efficient Aggregation-Induced Delayed Fluorescence Luminogens for Solution-Processed OLEDs With Small Efficiency Roll-Off

Author

Cai, Zheyi, Chen, Hao, Guo, Jingjing, Zhao, Zujin, Tang, Benzhong, Cai, Zheyi, Chen, Hao, Guo, Jingjing, Zhao, Zujin, and Tang, Benzhong

Abstract

Purely organic small molecules with thermally-activated delayed fluorescence have a high potential for application in organic light-emitting diodes (OLEDs), but overcoming severe efficiency roll-off at high voltages still remains challenging. In this work, we design and synthesize two new emitters consisting of electron-withdrawing benzoyl and electron-donating phenoxazine and 9,9-dihexylfluorene. Their electronic structures, thermal stability, electrochemical behaviors, photoluminescence property, and electroluminescence performance are thoroughly investigated. These new emitters show weak fluorescence in dilute solution, but they can emit strongly with prominent delayed fluorescence in the aggregated state, indicating the aggregation-induced delayed fluorescence (AIDF) character. The solution-processed OLEDs based on the two emitters show high external quantum efficiency of 14.69%, and the vacuum-deposited OLEDs can also provide comparable external quantum efficiency of 14.86%. Significantly, roll-offs of the external quantum efficiencies are very small (down to 0.2% at 1,000 cd m(-2)) for these devices, demonstrating the evidently advanced efficiency stability. These results prove that the purely organic emitters with AIDF properties can be promising to fabricate high-performance solution-processed OLEDs.

Published
2020

12. [Expert consensus on implementation strategy of awake prone positioning for non-intubated patients in China (2023)].

Author

Mi Y, Cai Z, Liu J, Tian F, Yang L, Bao L, Hou S, Gu S, Li L, Zhou X, Xu Y, Zhang S, Fu X, Li X, Li C, Sun L, Zhang X, Qi H, Yuan S, Zhu L, Huang H, and Shang Y

Subjects
Humans, Consensus, Prone Position, China, Wakefulness, Dyspnea
Abstract

The awake prone position plays an important role in the treatment of hypoxemia and the improvement of respiratory distress symptoms in non-intubated patients. It is widely used in clinical practice because of its simple operation, safety, and economy. To enable clinical medical staff to scientifically and normatively implement prone position for awake patients without intubation, the committees of consensus formulation, guided by evidence-based methodology and Delphi method, conducted literature search, literature quality evaluation and evidence synthesis around seven topics, including indications and contraindications, evaluation, implementation, monitoring and safety management, termination time, complication prevention and health education of awake prone position. After two rounds of expert letter consultation, Expert consensus on implementation strategy of awake prone positioning for non-intubated patients in China (2023) was formulated, and provide guidance for clinical medical staff.

Published
2023
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