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| 1 | Pathological changes in the lungs and lymphatic organs of 12 COVID-19 autopsy cases显示文摘Systematic autopsy and comprehensive pathological analyses of COVID-19 decedents should provide insights into the disease characteristics and facilitate the development of novel therapeutics.In this study,we report the autopsy findings from the lungs and lymphatic organs of 12 COVID-19 decedents—findings that evaluated histopathological changes;immune cell signature and inflammatory factor expression in the lungs,spleen and lymph nodes.Here we show that the major pulmonary alterations included diffuse alveolar damage,interstitial fibrosis and exudative inflammation featured with extensive serous and fibrin exudates,macrophage infiltration and abundant production of inflammatory factors(IL-6,IP-10,TNFo?and IL-I f).The spleen and hilar lymph nodes contained lesions with tissue structure disruption and immune cell dysregulation,including lymphopenia and macrophage accumulation.These findings provide pathological evidence that links injuries of the lungs and lymphatic organs with the fatal systematic respiratory and immune malfunction in critically ill COVID-19 patients. | Qian Liu Yu Shi Jun Cai Yaqi Duan Rongshuai Wang Hongyan Zhang Qiurong Ruan Jiansha Li Lei Zhao Yifang Ping Rong Chen Liang Ren Xiaochun Fei Heng Zhang Rui Tang Xi Wang Tao Luo Xindong Liu Xuequan Huang Zhenhua Liu Qilin Ao Yong Ren Jing Xiong Zhicheng He Haibo Wu Wenjuan Fu Pengnan Zhao Xinwei Chen Guoqiang Qu Yunyun Wang Xi Wang Jia Liu Dongfang Xiang Sanpeng Xu Xiaowei Zhou Qingrui Li Jinghong Ma Heng Li Jie Zhang Sizhe Huang Xiaohong Yao Yiwu Zhou Chaofu Wang Dingyu Zhang Guoping Wang Liang Liu Xiu-Wu Bian | 2020 | National Science Review2020，7，12： | 6 |
| 2 | Coprinus comatus-derived nitrogen-containing biocarbon electrocatalyst with the addition of self-generating graphene-like support for superior oxygen reduction reaction显示文摘The development of nitrogen-rich biomassderived carbon catalysts provides an attractive perspective to substitute for Pt-based electrocatalysts for oxygen reduction reaction(ORR). We here report a facile strategy for synthesis of a nitrogen-doped biocarbon/graphene-like composite electrocatalyst by pyrolyzing a solid-state mixture of coprinus comatus biomass and melamine under nitrogen protection. The graphtic carbon nitride formed by polycondensation of melamine at 600 °C acts as a selfsacrificing template to generate the nitrogen-doped graphene-like sheet, which can function as an inserting agent and self-generating support. The composite catalyst exhibits the most promising catalytic activity towards the fourelectron ORR with a half-wave potential of around 0.83 V(vs. RHE), and more excellent stability and tolerance to methanol/ethanol compared to the commercial Pt/C catalyst. It is interestingly found that both a higher content of nitrogen and a larger ratio of graphitic-nitrogen species,which may derive from self-addition of graphene-like support into the catalyst, can effectively improve the electrocatalytic activity. The planar N group may be the nitrogen functionality that is most responsible for maintaining the ORR activity in alkaline medium. This study can largely encourage the exploration of high-performance carbon-based catalysts from economical and sustainable fungus biomass. | Chaozhong Guo Wenli Liao Zhongbin Li Lingtao Sun Haibo Ruan Qingshan Wu Qinghong Luo Jie Huang Changguo Chen | 2016 | Science Bulletin2016，61，12： | 4 |
| 3 | Boosting the performance of deep-ultraviolet photodetector arrays based on phase-transformed heteroepitaxial β-Ga_(2)O_(3) films for solar-blind imaging显示文摘Solar-blind imaging has attracted considerable interest in both military and civilian applications,spurring the development of high-performance deep-ultraviolet photodetector arrays(PDAs) with wide-bandgap semiconductor materials.Herein,we present a novel method to enhance the performance of solar-blind PDAs(SBPDs) using β-Ga_(2)O_(3) films obtained by the phase transition of heterogeneous epitaxial sub-stable ε-Ga_(2)O_(3),achieved through high-temperature rapid annealing.Metal-semiconductor-metaltype SBPDs based on phase-transformed β-Ga_(2)O_(3) films exhibited superior performance,including an ultrahigh responsivity of 459.38 A/W,detectivity of 10^(14)–10^(15) Jones,external quantum efficiency of 10^(4)%–10^(5)%,rejection ratio(R_(254)/R_(365)) of 10^(5)–10^(6),photo-to-dark current ratio of 10^(4)–10^(6),fast response speed of 1.01 s/0.06 s,and favorable stability.Notably,the ultrahigh responsivity of β-Ga_(2)O_(3)-film-based devices was approximately 222-fold higher than that of ε-Ga_(2)O_(3) film-based devices.The assembled 4×5 β-Ga_(2)O_(3) film-based PDAs exhibited favorable uniformity,repeatability,and high spatial resolution for solarblind imaging.Our study offers a promising approach for the development of high-performance β-Ga_(2)O_(3)-based PDAs for solarblind ultraviolet imaging with potential applications in both military and civilian fields. | ZHENG QiQi CHEN LingRui LI XuDong DING Ke PANG Di LI HongLin XIONG YuanQiang RUAN HaiBo FANG Liang LI WanJun YE LiJuan ZHANG Hong KONG ChunYang | 2023 | Science China(Technological Sciences)2023，66，9： | 0 |
| 4 | Growth and Characterization of Indium Doped Zinc Oxide Films Sputtered from Powder Targets显示文摘Indium doped Zn O films were grown on quartz glass substrates by radio frequency magnetron sputtering from powder targets. Indium content in the targets varied from 1at% to 9at%. In doping on the structure, optical and electrical properties of Zn O thin films were studied. X-ray diffraction shows that all the films are hexagonal wurtzite with c-axis perpendicular to the substrates. There is a positive strain in the films and it increases with indium content. All the films show a high transmittance of 86% in the visible light region. Undoped Zn O thin film exhibits a high transmittance in the near infrared region. The transmittance of indium doped Zn O thin films decreases sharply in the near infrared region, and a cut-off wavelength can be found. The lowest resistivity of 4.3×10^(-4) Ω·cm and the highest carrier concentration of 1.86×10^(21) cm^(-3) can be obtained from Zn O thin films with an indium content of 5at% in the target. | 彭丽萍 FANG Liang ZHAO Yan WU Weidong RUAN Haibo KONG Chunyang | 2017 | Journal of Wuhan University of Technology(Materials Science)2017，32，4： | 0 |
| 5 | Mitigating Content Caching Attack in NDN显示文摘Content caching is a core component in Named Data Networking(NDN),where content is cached in routers and served for future requests.However,the adversary can launch verification attack by placing poisoned data into the network with a legitimate name and allow the routers in the delivery path to frequently identify the content.Since NDN employs digital signature on each piece of content,verifying all content will exhaust routers’computational resources due to the massive data in the network.In this paper,we propose a selective verification scheme upon the contents that are hit in the content store and allow the contents that are not actually served to be unverified.We also consider the redundant verification of popular content and incorporated in our design to lessen the re-accessing overhead.Analysis and performance results show that the proposed scheme can greatly mitigate the risk of content verification attacks and save the computational resources of relay nodes. | Zhiqiang Ruan Haibo Luo Wenzhong Lin Jie Wang | 2018 | Computers, Materials & Continua2018，，9： | 0 |
| 6 | Retraction Notice to: Mitigating Content Caching Attack in NDN显示文摘The author Zhiqiang Ruan has plagiarized parts of a paper that had already appeared in IEEE Transactions on Information Forensics and Security in 2017 titled'Security of Cached Content in NDN.'vol.12,no.12,pp.2933-2944,DOI:10.1109/TIFS.2017.2725229.Upon request of original authors,Tech Science Press conducted an institutional investigation which confirmed the misconduct.During the investigation,the corresponding author Zhiqiang Ruan also declared that he submitted the paper without knowledge and permission of Haibo Luo,Wenzhong Lin and Jie Wang in the author list. | Zhiqiang Ruan Haibo Luo Wenzhong Lin Jie Wang | 2018 | Computers, Materials & Continua2018，，12： | 0 |
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