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Precise Design and Deliberate Tuning of Turn-On Fluorescence in Tetraphenylpyrazine-Based Metal-Organic Frameworks

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Research 2023年第1期2022卷 341-351页

作者： He-Qi Zheng Lin Zhang Mengting Lu xiaoyan xiao Yu Yang Yuanjing Cui Guodong Qian State Key Laboratory of Silicon Materials Cyrus Tang Center for Sensor Materials and ApplicationsSchool of Materials Science EngineeringZhejiang UniversityHangzhou 310027China

The manipulation on turn-on fluorescence in solid state materials attracts increasing interests owing to their widespread *** we report how the nonradiative pathways of tetraphenylpyrazine(TPP)units in metal-organic frameworks(MOFs)systems could be hindered through a topological design *** MOFs single crystals of different topology were constructed via the solvothermal reaction of a TPP-based 4,4',4",4"-(pyrazine-2,3,5,6-tetrayl)tetrabenzoic acid(H,TCPP)ligand and metal cations,and their mechanisms of formation have been *** with the innate lowfrequency vibrational modes of flu net Tb-TCPP-1,such as phenyl ring torsions and pyrazine twists,Tb-TCPP-2 adopts a shp net,so the dihedral angle of pyrazine ring and phenyl arms is larger,and the center pyrazine ring in TPP unit is coplanar,which hinders the radiationless decay of TPP moieties in *** Tb-TCPP-2 exhibits a larger blue-shifted fluorescence and a higher fluorescence quantum yield than Tb-TCPP-1,which is consistent with the reduced nonradiative ***,Density functional theory(DFT)studies also confirmed aforementioned tunable turn-on fluorescence *** work constructed TPP-type MOFs based on a deliberately topological design approach,and the precise design of turn-on fluorescence holds promise as a strategy for controlling nonradiative pathways.

关键词： mechanism. pyrazine phenyl

Cells derived from iPSC can be immunogenic -- Yes or No？

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Protein & Cell 2014年第1期5卷 1-3页

作者： Jiani Cao xiaoyan Li xiao Lu Chao Zhang Honghao Yu Tongbiao Zhao State Key Laboratory of Reproductive Biology Institute of Zoology Chinese Academy of Sciences Beijing 100101 China

The induced pluripotent stem cells （iPSCs）, derived by ectopic expression of reprogramming factors in somatic cells, can potentially provide unlimited autologous cells for regenerative medicine. In theory, the autologous cells derived from patient iPSCs should be immune tolerant by the host without any immune rejections. However, our recent studies have found that even syn- geneic iPSC-derived cells can be immunogenic in syn- geneic hosts by using a teratoma transplantation model （Nature 474：212-215, 2011）. Recently two research groups differentiated the iPSCs into different germ lay- ers or cells, transplanted those cells to the syngeneic hosts, and evaluated the immunogenicity of those cells. Both of the two studies support our conclusions that some certain but not all tissues derived from iPSCs can be immunogenic, although they claimed either ＂negli- gible＂ or ＂lack of＂ immunogenicity in iPSC derivatives （Nature 494：100-104, 2013; Cell Stem Cell 12：407-412, 2013）. To test the immunogenicity of clinically valuable cells differentiated from human iPSCs are emergenUy required for translation of iPSC technology to clinics.

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Structural and magnetic properties of CeZnAl3 single crystals

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Science China(Physics,Mechanics & Astronomy) 2018年第7期61卷 73-78页

作者： Qian Liu Bin Shen Michael Smidman Rui Li ZhiYong Nie xiaoyan xiao Ye Chen Hanoh Lee HuiQiu Yuan Center for Correlated Matter and Department of Physics Zhejiang University Hangzhou 310058 China State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China Collaborative Innovation Center of Advanced Microstructures Nanjing 210093 China

We have synthesized single crystals of CeZnAl3, which is a new member of family of Ce-based intermetallics CeTX3 （T=transition metal, X=Si, Ge, A1）, crystallizing in the non-centrosymmetric tetragonal BaNiSns-type structure. Magnetization, specific heat and resistivity measurements all show that CeZnAls orders magnetically below around 4.4 K. Furthermore, magnetization measurements exhibit a hysteresis loop at low temperatures and fields, indicating the presence of a ferromagnetic component in the magnetic state. This points to a different nature of the magnetism in CeZnAl3 compared to the other isostructural CeTAl3 compounds. Resistivity measurements under pressures up to 1.8 GPa show a moderate suppression of the ordering temperature with pressure, suggesting that measurements to higher pressures are required to look for quantum critical behavior.

关键词： non-centrosymmetric compounds ferromagnetism quantum phase transitions

BMRMIA:A Platform for Radiologists to Systematically Learn Automated Medical Image Analysis by Three Dimensional Medical Decision Support System

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Computer Modeling in Engineering & Sciences 2022年第5期131卷 851-863页

作者： Yankun Cao Lina Xu Zhi Liu xiaoyan xiao Mingyu Wang Qin Li Hongji Xu Geng Yang School of Software Shandong UniversityJinan250101China School of Information Science and Engineering Shandong UniversityQingdao266237China School of Computer Science and Technology Shandong Jianzhu UniversityJinan250012China Department of Nephrology Qilu Hospital of Shandong UniversityJinan250012China State Key Laboratory of ASIC&Systems The School of MicroelectronicsFudan UniversityShanghai200433China Shenzhen Institute of Information Technology Shenzhen518172China

Contribution:This paper designs a learning and training platform that can systematically help radiologists learn automated medical image analysis *** platform can help radiologists master deep learning theories and medical applications such as the three-dimensional medical decision support system,and strengthen the teaching practice of deep learning related courses in hospitals,so as to help doctors better understand deep learning knowledge and improve the efficiency of auxiliary ***:In recent years,deep learning has been widely used in academia,industry,*** increasing number of companies are starting to recruit a large number of professionals in the field of deep *** numbers of colleges and universities also offer courses related to deep learning to help radiologists learn automated medical image analysis *** now,however,there is no practical training platform that can help radiologists learn automated medical image analysis ***:The platform proposes the basic learning,model combat,business application(BMR)concept,including the learning guidance system and the assessment training system,which constitutes a closed-loop learning guidance mode of“learning-assessment-training-learning”.Findings:The survey results show that most of radiologists met their learning expectations by using this *** platform can help radiologists master deep learning techniques quickly,comprehensively and firmly.

关键词： BMR deep learning three dimensional medical decision support system deep learning engineer standard

The preparation of terephthalic acid by solvent-free oxidation of p-xylene with air over T(p-C1)PPMnC1 and Co(OAc)_2

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Chinese Chemical Letters 2011年第2期22卷 135-138页

作者： Yang xiao xiaoyan Zhang Qin Bo Wang Ze Tan Can Cheng Guo Wei Deng Zhi Gang Liu He Fei Zhang College of Chemistry and Chemical Engineering Hunan UniversityChangsha 410082China

An attempt has been made to prepare terephthalic acid（TPA） by solvent-free oxidation of p-xylene（PX） with air over tetra（pchlorophenylporphinato） manganese chloride（T（p-Cl）PPMnCl） and cobalt *** co-catalysis between T（p-Cl）PPMnCl and Co（OAc）_2 has been discovered under solvent-free *** yield could be increased significantly when T（p-Cl）PPMnCl and Co（OAc）_2 were used *** addition of T（p-Cl）PPMnCl into the reaction mixture over Co（OAc）_2 significantly accelerated the rate-determining step of the oxidation process of PX to *** effect of temperature on reaction was also investigated.

关键词： Terephthalic acid Solvent-free p-Xylene Oxidation Manganese porphyrin Cobalt acetate

Pedagogical Insights Found in The Analects

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教育研究前沿（中英文版） 2021年第1期11卷 54-58页

作者：肖小燕 English school Zhejiang Yuexiu University of Foreign LanguagesShaoxing312000China

This essay tries to uncover and interpret Confucius’s educational philosophy as embodied in The Analects and its implications for today’s college education in hopes that it may provide higher educational institution... 详细信息

关键词： Pedagogical Insights The Analects Teaching Quality

Development of Vacuum Monitoring System in the HL-2A tokamak

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Southwestern Institute of Physics Annual Report

Southwestern Institute of Physics Annual Report 2004年第1期 54-56页

作者： GAO xiaoyan CAI xiao CAO Zeng CUI Chenghe

HL-2A is the first divertor tokamak in China. The vacuum system is one of the important parts of the HL-2A tokamak, which has to be work well during the physics campaign in 2004. As the tokamak machine is separated from the operation staff during discharges, to guarantee the safe and reliable operation of the vacuum system, it is necessary to watch the vacuum system outside the machine hall with an automatic monitoring system. The paper describes the design and manufacture of the monitoring system.

关键词： Vacuum system Monitor

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欧美手语语言学研究

中国特殊教育 2011年第8期 41-46页

作者：肖晓燕厦门大学外文学院厦门361005

欧美手语语言学研究始于1960年代。本文梳理了以欧美主要国家为代表的手语研究的(主要)历史进程,从音位、形态、句法、手语习得以及神经语言学等方面具体阐述了手语语言学的研究内容,并分析了手语与有声语言的独特之处,以及手语研究的... 详细信息

欧美手语语言学研究始于1960年代。本文梳理了以欧美主要国家为代表的手语研究的(主要)历史进程,从音位、形态、句法、手语习得以及神经语言学等方面具体阐述了手语语言学的研究内容,并分析了手语与有声语言的独特之处,以及手语研究的发展趋势。

关键词：手语音位形态句法手语习得

Paeonol attenuates advanced oxidation protein product-induced oxidative stress injury in THP-1 macrophages

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Paeonol attenuates advanced oxidation protein product-induce...