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Construction of pyrene-based hydrogen-bonded organic frameworks as photocatalysts for photooxidation of styrene in water

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Chinese Chemical Letters 2024年第10期35卷 394-398页

作者： Rongxin Zhu Shengsheng Yu xuanzong yang Ruyu Zhu Hui Liu Kaikai Niu Lingbao Xing School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo 255000China

Using hydrogen-bonded organic frameworks(HOFs)as photosensitizers to perform photocatalytic oxidation reactions under green and mild conditions is still a challenge for the application of HOFs *** study presents a novel approach that exploits HOFs to enhance the efficiency of photocatalytic oxidation for achieving visible light catalytic oxidation of styrene and its derivatives in the aqueous *** using 1,3,6,8-tetrakis(p-benzoic acid)pyrene(H_(4)TBAPy)as the monomer,a pyrene-based hydrogen-bonded organic framework(PFC-1)with a microporous structure was successfully *** with monomer H_(4)TBAPy,due to the exciton effect and the interlayer confinement of HOFs,the singlet oxygen(1O_(2))production efficiency is significantly improved,which has great potential in photocatalytic oxidation ***,the practicality of PFC-1 as a photocatalyst was studied,and the photocatalytic oxidation of styrene and its derivatives in aqueous solution was achieved under visible light with high catalytic efficiency,indicating that PFC-1 has significant potential to promote photocatalytic oxidation reactions under mild *** utilization of HOFs as photosensitizers in this straightforward approach enables the attainment of green photocatalytic oxidation,hence expanding the potential applications of HOFs materials within the realm of photocatalysis.

关键词： Pyrene Hydrogen-bonded organicframeworks Singlet oxygen Photocatalysis Styrene

Preliminary Experimental Results of ac Operation in the CT-6B Tokamak

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Chinese Physics Letters 1995年第6期12卷 362-365页

作者： yang xuanzong ZHENG Shaobai JIANG Diming HAN Gonghe FENG Chunhua QI Xiazhi WANG Wenshu LI Wenlai LI Zanliang DONG Lifang Institute of Physics Academia SinicaBeijing 100080

The preliminary experimental results of ac plasma discharges in the CT-6B tokamak have been achieved by an active plasma current feedback system and the keys to a smooth transition through current zero and some phenom... 详细信息

关键词： tokamak Tokamak system

Mechanism and operation parameters of a plasma-driven micro-particle accelerator

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Chinese Science Bulletin 2009年第2期54卷 616-622页

作者： HUANG JianGuo HAN JianWei LI HongWei CAI MingHui LI xiaoYin ZHANG ZhenLong CHEN ZhaoFeng WANG Long yang xuanzong FENG ChunHua Center for Space Science and Applied Research Chinese Academy of Sciences P.O. Box 8701 Beijing 100190 China Institute of Physics Chinese Academy of Sciences P.O. Box 603 Beijing 100190 China

There is a large amount of micro debris ranging between millimeters and micrometers in space, which has significant influence on the reliability and life of spacecrafts through long-duration integrated impacts and has to be considered in designing a vehicle's suitability to the space environment. In order to simulate the micro-impacts on exposed materials, a plasma-driven micro-particle accelerator was developed. The major processes, including the acceleration, compression and ejection of plasmas, were modeled. By comparing the theoretical simulations with the experimental results, the acceleration mechanism was clarified. Moreover, through a series of experiments, the optimum operation range was investigated, and the acceleration ability was primarily determined.

关键词：微粒加速器空间探测等离子驱动模拟实验

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广州市帽峰山森林公园鸟类多样性研究

热带地理 2023年第9期43卷 1726-1737页

作者：佟富春郑泽惟林嘉莉黄子峻杨玄宗吴牧凡张晓玲肖以华华南农业大学林学与风景园林学院广州510642 中国林业科学研究院热带林业研究所广州510520

为了解帽峰山森林公园鸟类多样性及其群落结构特征,于2020年11月到2022年3月,采用样线法结合红外相机法,逐月对帽峰山森林公园鸟类进行调查。结果表明:1)共记录鸟类16目46科143种;18种鸟类属国家二级重点保护动物,8种属CITES附录Ⅱ保护... 详细信息

为了解帽峰山森林公园鸟类多样性及其群落结构特征,于2020年11月到2022年3月,采用样线法结合红外相机法,逐月对帽峰山森林公园鸟类进行调查。结果表明:1)共记录鸟类16目46科143种;18种鸟类属国家二级重点保护动物,8种属CITES附录Ⅱ保护动物;优势种为红耳鹎(Pycnonotus jocosus)、白喉红臀鹎(Pycnonotus aurigaster)、淡眉雀鹛(Alcippe morrisonia)和暗绿绣眼鸟(Zosterops simplex)4种;鸟类居留型中留鸟占绝大部分(90种),区系中以东洋界占优势(80种);生态类型以林鸟(132种)为主,食性上以食虫(67种)和杂食性(46种)鸟类为主,具有明显的森林鸟类群落特征。2)生境中Shannon-Wiener多样性指数、Simpson优势度指数和Margalef丰富度指数均表现为林地最高,公路最低,各生境的Pielou均匀度指数相近;季节中Shannon-Wiener多样性指数和Margalef丰富度指数表现为春季最高,夏季最低;四季Pielou均匀度指数与Simpson优势度指数均相近;3)鸟类多样性与生境类型、季节有明显相关性(P<0.05)。总体上,帽峰山森林公园生境多样,鸟类资源丰富,鸟类群落结构较稳定且具有较高的鸟类多样性。

关键词：鸟类多样性帽峰山森林公园广州市

基于IGBT的SUNIST电极放电电源的研究

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长春理工大学学报（自然科学版） 2005年第1期28卷 17-19页

作者：冯松林杨宣宗冯克成长春理工大学理学院长春130022 中科院物理研究所北京100080

为了即将进行的SUNIST(SinoUNItedSphericalTokamak,中国联合球形托卡马克)电极放电辅助电子回旋波电流启动实验,研制成功了1000V/50A放电电源。本文介绍了基于IGBT组成的SUNIST电极放电电源。

关键词： SUNIST 电极放电 IGBT

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等离子体加速器动力学理论探索

航天器环境工程 2010年第3期27卷 285-289,263页

作者：高秀黄建国韩建伟杨宣宗冯春华中国科学院空间科学与应用研究中心北京100190 中国科学院物理研究所北京100190

等离子体驱动微小碎片加速器是利用大容量脉冲电容器组对等离子体同轴枪放电产生高温、高密度、高速等离子体,再用这些等离子体加速微粒(10～1000μm)至超高速(1～15km/s)以模拟mm级以下空间碎片撞击效应的地面试验装置。为了提高微粒速... 详细信息

等离子体驱动微小碎片加速器是利用大容量脉冲电容器组对等离子体同轴枪放电产生高温、高密度、高速等离子体,再用这些等离子体加速微粒(10～1000μm)至超高速(1～15km/s)以模拟mm级以下空间碎片撞击效应的地面试验装置。为了提高微粒速度,需要增加等离子体的动量,而等离子体的动量与工作气体的性质及定向速度密切相关。文章用数值模拟及解析计算等理论方法来探索等离子体轴向速度、密度和温度与放电条件、加速电极参数和工作气体之间的关系。通过研究等离子体束与微粒间相互作用的动力学行为,寻求优化试验装置效率的有效途径。

关键词：等离子体同轴枪微小碎片撞击效应雪耙模型数值模拟

Clinical implications of XPO1 mutations in NSCLC patients with immunotherapy

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Clinical implications of XPO1 mutations in NSCLC patients wi...

2021年中国肿瘤标志物学术大会暨第十五届肿瘤标志物青...

作者： xuanzong Li Linlin Wang 新疆医科大学附属肿瘤医院山东省肿瘤医院

Introduction: The nuclear export protein exportin 1(XPO1) regulates the export of a range of cargoes from the nucleus to the cytoplasm, and plays an important role in the maintenance of cellular homeostasis. Previous studies indicated that non-small-cell lung cancer(NSCLC) patients with XPO1 mutations were associated with poorer survival. However, up to now, the approaches for XPO1-inhibitors are still challenging, and the definite efficacy for XPO1 blockade is still undetermined in several cancer types including NSCLC. Therefore, finding novel strategies is urgently needed to improve the survival for XPO1-mutant NSCLC patients. Interestingly, NSCLC patients with XPO1 mutations were more likely to have high tumor mutational burden(TMB), which suggested that immune checkpoint inhibitors(ICIs) could serve as an option for these patients. Nonetheless, as far as we known, there is no study investigate the efficacy of ICIs in NSCLC patients with XPO1 ***: We integrated the MSK-TMB, POPLAR and OAK cohorts to evaluate the association between XPO1 mutation and the survival of NSCLC patients. A total of 350 ICI-treated NSCLC patients from the MSK-TMB cohort and 429 atezolizumab-treated NSCLC patients with available genomic sequencing data(biomarker evaluable population) from the POPLAR and OAK cohorts were included in this study. Importantly, XPO1 mutations were defined as any nonsynonymous or fusion ***: The incidence of XPO1 mutations was 1.2 %(9 of 779) in the entire cohort. Detailly, most of patients were non-squamous(6 of 9, 66.7 %), were male(7 of 9, 77.8 %), had missense mutation type for XPO1 gene(7 of 9, 77.8 %) and exhibited high TMB scores(above 10 mutations/Mb)(7 of 9,77.8 %). At first, we analyzed the overall survival(OS) in NSCLC patients with XPO1 mutations and their wild type counterparts. Unfortunately, we found patients harboring XPO1 mutations had comparable OS compared with those without the mutation(median OS, 19 months versus

关键词： XPO1,NSCLC Immunothearpy

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《宋代科举与文学考论》序

中国文化研究 2005年第3期 171-173页

作者：傅璇琮中华书局

祝尚书先生于上一世纪九十年代后期,即从1998年开始,将其研究重点逐步转移于宋代科举与文学,并陆续有专题论文刊出,颇得到学界的关注,我也间有研读.现在祝尚书先生将这二十余篇论文结集,正式题署为,由大象出版社出版.

关键词：唐代科举文学宋代《中国古代诗文名著提要》考论大象出版社序专题论文中华书局九十年代

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中国最早两位翰林学士考——吕向、尹愔传论

文献 2002年第4期 60-75页

作者：傅璇琮中华书局

中国古代翰林学士,开始设置于唐玄宗开元二十六年(738),正当盛唐之世.自此之后,历宋、元、明、清,翰林学士一直有很高的社会声誉.直至1901年,正当八国联军进占北京之后,清朝廷还于6月5日下诏令,称翰林院为"储才重地"(《光绪朝东华录》)... 详细信息

中国古代翰林学士,开始设置于唐玄宗开元二十六年(738),正当盛唐之世.自此之后,历宋、元、明、清,翰林学士一直有很高的社会声誉.直至1901年,正当八国联军进占北京之后,清朝廷还于6月5日下诏令,称翰林院为"储才重地"(《光绪朝东华录》).在唐代,翰林学士为文士参预政事的最高层次,很值得研究.据现有史料,唐代翰林学士可考知者约二百余人,其中有不少著名政治家、文学家.本文为最早的两位翰林学士立传,既拟纠正史书中的某些误载,又想从这两位学士经历的考述中提供值得思考的历史文化现象.

关键词：吕向集贤院中书舍人翰林学士翰林待诏翰林画待诏翰林供奉开元中中华人民共和国最早