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1,672 results on '"Peng, Xuan"'

3. GPR50 regulates neuronal development as a mitophagy receptor

Author

Liu, Ji-Chuan, Zhao, Xiu-Yun, Wu, Ming-Lei, Shi, Yi-fan, Huang, Ze-Ping, Fang, Li-Pao, Zhu, Chao, Peng, Xuan, Shi, Zi-Ling, Lan, Li-Jun, Ji, Wen-Li, Luo, Li, Feng, Lei, Zhang, Zeng-Li, Xu, De-en, Li, Shao, Qin, Zheng-Hong, Sun, Yan-Yun, Schachner, Melitta, and Ma, Quan-Hong

Published
2024
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4. Thiourea and arginine synergistically preserve redox homeostasis and ionic balance for alleviating salinity stress in wheat

Author

Jingkun Li, Li Xu, Peng Xuan, Zhixiang Tian, and Runqiang Liu

Subjects
Salinity stress, Reactive oxide species, Antioxidant, Ionic balance, Medicine, Science
Abstract

Abstract Plant growth regulators are cost-effective and efficient methods for enhancing plant defenses under stress conditions. This study investigates the ability of two plant growth-regulating substances, thiourea (TU) and arginine (Arg), to mitigate salinity stress in wheat. The results show that both TU and Arg, particularly when used together, modify plant growth under salinity stress. Their application significantly increases the activities of antioxidant enzymes while decreasing the levels of reactive oxygen species (ROS), malondialdehyde (MDA), and relative electrolyte leakage (REL) in wheat seedlings. Additionally, these treatments significantly reduce the concentrations of Na+ and Ca2+ and the Na+/K+ ratio, while significantly increasing K+ levels, thereby preserving ionic osmotic balance. Importantly, TU and Arg markedly enhance the chlorophyll content, net photosynthetic rate, and gas exchange rate in wheat seedlings under salinity stress. The use of TU and Arg, either individually or in combination, results in a 9.03–47.45% increase in dry matter accumulation, with the maximum increase observed when both are used together. Overall, this study highlights that maintaining redox homeostasis and ionic balance are crucial for enhancing plant tolerance to salinity stress. Furthermore, TU and Arg are recommended as potential plant growth regulators to boost wheat productivity under such conditions, especially when applied together.

Published
2024
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5. A broadband hyperspectral image sensor with high spatio-temporal resolution

Author

Bian, Liheng, Wang, Zhen, Zhang, Yuzhe, Li, Lianjie, Zhang, Yinuo, Yang, Chen, Fang, Wen, Zhao, Jiajun, Zhu, Chunli, Meng, Qinghao, Peng, Xuan, and Zhang, Jun

Subjects
Physics - Optics
Abstract

Hyperspectral imaging provides high-dimensional spatial-temporal-spectral information revealing intrinsic matter characteristics. Here we report an on-chip computational hyperspectral imaging framework with high spatial and temporal resolution. By integrating different broadband modulation materials on the image sensor chip, the target spectral information is non-uniformly and intrinsically coupled on each pixel with high light throughput. Using intelligent reconstruction algorithms, multi-channel images can be recovered from each frame, realizing real-time hyperspectral imaging. Following such a framework, we for the first time fabricated a broadband VIS-NIR (400-1700 nm) hyperspectral imaging sensor using photolithography, with an average light throughput of 74.8% and 96 wavelength channels. The demonstrated resolution is 1,024*1,024 pixels at 124 fps. We demonstrated its wide applications including chlorophyll and sugar quantification for intelligent agriculture, blood oxygen and water quality monitoring for human health, textile classification and apple bruise detection for industrial automation, and remote lunar detection for astronomy. The integrated hyperspectral image sensor weighs only tens of grams, and can be assembled on various resource-limited platforms or equipped with off-the-shelf optical systems. The technique transforms the challenge of high-dimensional imaging from a high-cost manufacturing and cumbersome system to one that is solvable through on-chip compression and agile computation.

Published
2023

24. ViT-Siamese Cascade Network for Transmission Image Deduplication

Author

Chen, Zhenyu, Chen, Siyu, Peng, Xuan, Bian, Jingchen, Jiang, Lina, Zhang, Xiaoyu, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Zhai, Guangtao, editor, Zhou, Jun, editor, Yang, Hua, editor, Yang, Xiaokang, editor, An, Ping, editor, and Wang, Jia, editor

Published
2023
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36. Performance and purification mechanism of the mullite/SiC composite filter tube membrane

Author

Yuan Zhangfu, Lu Mei, Peng Xuan, Xu Bingsheng, Shi Yuantao, and Zhao Hongxin

Subjects
sic support, mullite membrane, composite filter tube membrane, high temperature flue gas, Clay industries. Ceramics. Glass, TP785-869
Abstract

Asymmetric composite tubular membranes were prepared with SiC as the support body and mullite as the membrane layer. The asymmetric mullite/SiC composite filter tube membranes were characterized by different analytic techniques. The mullite membrane was prepared as a layer on the SiC support with a thickness of about 175 μm, pore size of about 1-10 μm and porosity of 9.9%. The SiC support tube had a pore size of about 20-150 μm and porosity of 19.0%. After 360 days of high-temperature flue gas filtration, the most available pore size of the mullite/SiC composite filter tube membrane reduces from 45.2 to 36.4 μm (the reduction rate of about 19.4%). Analysis of the dust collected by back-blowing revealed that the dust particle size range was between 0.1-100 μm and about 50%of the dust particles were below 2.5 μm in size. The average capture rate of dust can reach 98.4%, indicating that the asymmetric mullite/SiC composite filter tube membrane has excellent filtration performance for the dust below PM2.5 in the high-temperature complex flue gas.

Published
2023
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40. Ternary Nb3Sn superconductors with artificial pinning centers and high upper critical fields

Author

Xu, Xingchen, Rochester, Jacob, Peng, Xuan, Sumption, Mike, and Tomsic, Mike

Subjects
Condensed Matter - Superconductivity
Abstract

In this letter we demonstrate the development of ternary Nb3Sn multifilamentary conductors with artificial pinning centers (APC) which achieve high critical fields. These recently-developed conductors were tested in a 31 T magnet, and the results showed that their upper critical field (Bc2) values at 4.2 K are 27-28 T, and irreversible field (Birr) values are above 26 T, values similar to or higher than those of best RRP conductors. The non-Cu Jc has been brought to nearly 1200 A/mm2 at 16 T and 4.2 K, comparable to RRP, in spite of the fact that the fine-grain Nb3Sn fractions in filaments are still low (20-30%) and the grain sizes are still not fully refined (70-80 nm) due to conductor designs and heat treatments that are not yet optimized. The Nb3Sn layer Jc at 4.2 K, 16 T is 4710 A/mm2 for the APC wire with 1%Zr, about 2.5 times higher than RRP conductors, in spite of the fact that its grain size is not yet fully refined due to insufficient oxygen and unoptimized heat treatment. An analysis is presented about the non-Cu Jc that can be achieved by further optimizing the APC conductors and their heat treatments.

Published
2018
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41. Dynamic Refining Knowledge Distillation Based on Attention Mechanism

Author

Peng, Xuan, Liu, Fang, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Khanna, Sankalp, editor, Cao, Jian, editor, Bai, Quan, editor, and Xu, Guandong, editor

Published
2022
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42. Seismic Performance of Large Rupture Strain (LRS) FRP-Wrapped Circular RC Columns

Author

Zhang, Yu-Feng, Bai, Yu-Lei, Sun, Peng-Xuan, Dai, Jian-Guo, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Ilki, Alper, editor, Ispir, Medine, editor, and Inci, Pinar, editor

Published
2022
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43. Earnings guidance stoppage and the value of financial analysts' research.

Author

Palmon, Dan, Peng, Xuan, and Yezegel, Ari

Subjects
VALUE (Economics), FINANCIAL analysts, SECURITIES analysts, INVESTORS, CAPITAL market
Abstract

Copyright of Contemporary Accounting Research is the property of Canadian Academic Accounting Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023
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