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跨越公共服务数字化与公民使用的鸿沟——以工伤保险为例

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公共管理评论 2024年第2期6卷 126-159页

作者：潘王雨昂马亮厦门大学管理学院中国人民大学公共管理学院

长期以来，学术界普遍对数字化实际推动公民接受公共服务的效果持悲观看法，认为这只是一种“神话”或“乌托邦”。本文以工伤保险公共服务为例，通过连续双重差分法进行准实验设计和反事实评估，发现基于中国场景得出的结论是乐观的：... 详细信息

长期以来，学术界普遍对数字化实际推动公民接受公共服务的效果持悲观看法，认为这只是一种“神话”或“乌托邦”。本文以工伤保险公共服务为例，通过连续双重差分法进行准实验设计和反事实评估，发现基于中国场景得出的结论是乐观的：公共服务数字化对于工伤保险覆盖面提升的解释力度显著(高达182%)。本文进一步地通过合成双重差分等方法发现，对于公民需求的重视是公民接受公共服务的决定性因素，公共服务数字化在其中更多起到了“助推器”“催化剂”及“加速器”的作用。本文呼吁建设以公民需求为中心的数字政府并推动“互联网+公共服务”,在先进技术的引用及推广之外，更加重视公共价值的践行。

关键词：数字公共服务数字政府行政负担社会保险覆盖面工伤保险

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ESIPT-based AIE luminogens:Design strategies,applications,and mechanisms

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Aggregate 2022年第5期3卷 3-25页

作者： panwang Zhou Keli Han Institute of Molecular Sciences and Engineering Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdaoP.R.China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of ScienceDalianLiaoningP.R.China

In this review,we present a systematic and comprehensive summary of the recent development and applications of excited-state intramolecular proton transfer-based(ESIPT-based)aggregation-induced emission luminogens(AIEgens),a type of promising materials that inherit the advantages of ESIPT and AIE,such as large Stokes shift,excellent photostability,and low *** first summarize the backbones that have been used to construct the ESIPT-based AIEgens and classify the constructed ones based on the relation between ESIPT and AIE *** to the sensing mechanisms and design strategies,we have reviewed the applications of ESIPT-based AIEgens in bioimaging,drug delivery systems,organic lightemitting diodes,photo-patterning,liquid crystal,and the detection of metal cations,anions,small molecules,biothiols,biological enzymes,latent fingerprinting,and so *** have also reviewed the recent advances in the development of new theoretical methods for investigating molecular photochemistry in crystals and their applications in ESIPT-based *** discussed the remaining challenges in this field and the issues that need to be *** anticipate that this review can provide a comprehensive picture of the current condition of research in this field,and promote researchers to make more efforts to develop novel ESIPT-based AIEgens with new applications.

关键词： AIE ESIPT

Regulation of excitation energy transfer in Sb-alloyed Cs_(4)MnBi_(2)Cl_(12) perovskites for efficient CO_(2) photoreduction to CO and water oxidation toward H_(2)O_(2)

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Journal of Energy Chemistry 2023年第7期82卷 18-24,I0001页

作者： Haiwen Wei Zhen Li Honglei Wang Yang Yang Pengfei Cheng Peigeng Han Ruiling Zhang Feng Liu panwang Zhou Keli Han Institute of Molecular Sciences and Engineering Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237ShandongChina State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of ScienceDalian 116023LiaoningChina

Lead(Pb)-free halide perovskites have recently attracted increasing attention as potential catalysts for CO_(2) photoreduction to CO due to their potential to capture solar energy and drive catalytic ***,issues of the poor charge transfer still remain one of the main obstacles limiting their performance due to the overwhelming radiative and nonradiative charge-carrier recombination ***,Pb-free Sb-alloyed all-inorganic quadruple perovskite Cs_(4)Mn(Bi_(1-x)Sb_(x))_(2)Cl_(12)(0≤x≤1)is synthesized as efficient *** Sb alloying,the undesired relaxation of photogenerated electrons from conduction band to emission centers of[MnCl6]^(4-)is greatly suppressed,resulting in a weakened PL emission and enhanced charge transfer for *** ensuing Cs_(4)Mn(Bi_(1-x)Sb_(x))_(2)Cl_(12) photocatalyst accomplishes efficient conversion of CO_(2)into CO,accompanied by a surprising production of H_(2)O_(2),a high valueadded product associated with water *** optimizing Sb^(3+) concentration,a high CO evolution rate of 35.1μmol g^(-1)h^(-1)is achieved,superior to most other Pb and Pb-free halide *** findings provide new insights into the mixed-cation alloying strategies for improved photocatalytic performance of Pb-free perovskites and shed light on the rational design of robust band structure toward efficient energy transfer.

关键词： Pb-free perovskites Energy band modulation Perovskite photocatalysis photocatalytic CO_(2)reduction Water oxidation to H_(2)O_(2)

Se-sensitized NIR hot band absorption photosensitizer for anti-Stokes excitation deep photodynamic therapy

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Science China Chemistry 2022年第3期65卷 563-573页

作者： Dandan Ma Hui Bian Saran Long panwang Zhou Ruisong Tian Yingnan Wu Haoying Ge Mingle Li Jianjun Du Jiangli Fan Yukui Zhang Xiaojun Peng State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian 116024China Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023China Institute of Molecular Sciences and Engineering Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Shenzhen Research Institute Dalian University of TechnologyShenzhen 518057China Department of Chemistry Korea UniversitySeoul 02841Republic of Korea

Conventional anti-Stokes materials-involved deep photodynamic therapy(dPDT)requires much high-intensity irradiance due to low photosensitization ***,we proposed a"booster effector"approach to construct highly efficient hot band absorption phototherapeutics for low/biosafety power anti-Stokes light-triggered d ***,as"booster effector",was introduced into hot band absorption luminophores(HBAs),which not only significantly facilitated intersystem crossing,but also simultaneously enhanced hot band excitation efficiency atν808,as a result successfully enabling excellent photogenerated singlet oxygen capability of HBAs under ultra-low power anti-Stokes excitation(10 mW cm^(-2)in vitro).As far as we know,such low laser power-initiated photosensitization activity has never been reported in the existing anti-Stokes material ***,FUC-Se ME can self-assemble into uniform nanospheres in water,greatly boosting cellular uptake(>25-fold larger than FUC-Se),and achieve superior cancer-killing effect(808 nm,10 mW cm^(-2),5 min,the half-maximal inhibitory concentration IC50=1.36μM).After further PEGylation with folate-attached polymer,the resultant FUC-Se ME@FA can effectively enrich at the tumor(signal-to-background ratio,10).Under safety irradiation(330 mW cm^(-2)),FUC-Se ME@FA effectively inhibits deep-seated tumor progression(the tumor growth inhibition rate,84%).This work provides a successful paradigm,possibly being more clinically beneficial than conventional anti-Stokes materials.

关键词： anti-Stokes hot band absorption photodynamic therapy deep-seated tumor low power

Photo-induced carbon dioxide reduction on hexagonal tungsten oxide via an oxygen vacancies-involved process

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Chinese Chemical Letters 2023年第1期34卷 410-414页

作者： Yi Wang Runze Liu Ming Shi panwang Zhou Keli Han Can Li Rengui Li State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian National Laboratory for Clean EnergyDalian 116023China University of Chinese Academy of Sciences Beijing 100049China Institute of Molecular Sciences and Engineering Shandong UniversityQingdao 266235China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China

Although converting the greenhouse gasses carbon dioxide(CO_(2))into solar fuels is regarded as a convenient means of solar energy storage,the intrinsic mechanism on how the high chemical inertness linear CO_(2)molecules is activated and converted on a semiconductor oxide is still ***,by creating the oxygen vacancies on the typical hexagonal tungsten oxide(WO3),we realize the continuous photoinduced CO_(2)reduction to selectively produce CO under light irradiation,which was verified by isotope labeling *** oxygen vacancies evolution investigation indicates that light irradiation can simultaneously induce the in-situ formation of oxygen vacancies on hexagonal WO3,and the oxygen vacancies promote the adsorption and activation of CO_(2)molecules,leading to the CO_(2)reduction to CO on the hexagonal WO3via an oxygen vacancies-involved ***,the existence of water further promotes the formation of CO_(2)reduction intermediate,further promote the CO_(2)*** work provides insight on the mechanism for converting CO_(2)into CO under light irradiation.

关键词： Carbon dioxide reduction Oxygen vacancy Photocatalysis Reaction mechanism Tungsten oxide

Killing effect of the combined treatment of ultrasound and hypocrellin B on Candidaalbicans

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中国药理学与毒理学杂志 2015年第S1期29卷 92-93页

作者： Chuan-shanXU AlbertWing-NangLEUNG MargaretIP Xin-naWANG panwang School of Chinese Medicine Faculty of Medicine Chinese University of Hong Kong Department of Microbiology Faculty of Medicine Chinese University of Hong Kong

OBJECTIVE To investigate the killing effect of the combined treatment of ultrasound and hypocrellin B,an active component isolated from a natural product Hypocrella bambuase,on Candida *** At first,Candida albicans are incubated with hypcrellin B and the uptake of hypocrellin B in Candida albicans was determined using fluorescence intensity *** then the sensitized Candida albicans were exposed to low-intensity of *** the combined treatment of ultrasound and hypocellin B,the growth of Candida albicans was evaluated using the colony counting method,and membrane integrity of Candida albicans was also analyzed by a flow cytometry with propidium iodide *** Hypocrellin B was fast absorbed by candida *** growth of candida albicans was more significantly inhibited by the combined treatment of ultrasound and hypocrellin B than the controls(P<0.05).The more marked damages to membrane integrity were found in the combined treatment than the controls(P<0.05).CONCLUSION The combined treatment of ultrasound and hypocrellin B had significant killing effect on Candida albicans,indicating sonodynamic therapy with hypocrellin B from natural product might be a potential approach for combating fungal infections.

关键词： hypocrellin B sonodynamic inactivation sonodynamic

A Multimedia Intelligent Meta-synthesis System Oriented to Remote Diagnoses and Education

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Journal of Systems Science and Information 2004年第1期2卷 1-8页

作者： panwang ShanFeng TaoWu HongbinLiang SchoolofAutomation WuhanUniversityofTechnologyWuhan430070China InstituteofSystemsEngineering HuazhongUniversityofScienceandTechnologyWuhan430074China

The paper specifically introduces the composition, principle and realization ofa distributed mutlimedia intelligent meta-synthesis system oriented to remote diagnoses and education--Lower Mandibular Third Molar Intelligent Meta-synthesis System. With the OOL--Delphi3.0/4.0, the expert intelligent subsystem implements the function of resistance analysis and the computer aided decision-making to the disign of drawing teeth of lower mandibular third molar. For the sake of remote diagnoses, the system adopts FrontPage98 to design home pages which can be interfaced in IE and NETSCAPE easily.

关键词：远程诊断多媒体智能合成下颌第三臼齿口腔学

后排转子直径对对转螺旋桨气动和声学特性的影响

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航空动力学报 2022年第8期37卷 1749-1760页

作者：崔盼望仝帆冯和英陈正武王大庆中国空气动力研究与发展中心气动噪声控制重点实验室四川绵阳621000 湖南科技大学机械设备健康维护湖南省重点实验室湖南湘潭411201

基于非线性谐波法和声类比模型,研究了不同后排转子直径对对转螺旋桨气动特性和噪声的影响规律。首先,利用单排螺旋桨风洞试验结果验证了数值计算方法的可靠性。随后,以某型对转螺旋桨为研究对象,研究了6种具有不同后排转子直径的对转... 详细信息

基于非线性谐波法和声类比模型,研究了不同后排转子直径对对转螺旋桨气动特性和噪声的影响规律。首先,利用单排螺旋桨风洞试验结果验证了数值计算方法的可靠性。随后,以某型对转螺旋桨为研究对象,研究了6种具有不同后排转子直径的对转螺旋桨模型。研究发现,对转螺旋桨后排转子直径“裁剪”会降低后排螺旋桨的拉力系数和功率系数,但对效率的影响不明显。随着后排转子直径的减小,前排转子的叶片通过频率下的噪声几乎没有变化,但高阶噪声变化幅度较大。后排转子减小0.25倍直径,后排转子的叶片通过频率下的噪声降低约为9 dB。后排转子直径“裁剪”不仅可以降低后排转子噪声,在一定程度上也可以降低前排转子的噪声。通过叶片“裁剪”,对转螺旋桨气动噪声降低5~6 dB。对转螺旋桨后排转子直径的减小,减弱了对转螺旋桨叶尖涡干涉和尾迹干涉,并减弱了前后排桨叶的势流场干涉,进而降低了对转螺旋桨的噪声辐射。

关键词：对转螺旋桨转子直径非线性谐波方法叶尖涡干涉噪声

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桨叶数目对对转螺旋桨气动和噪声特性的影响

空气动力学学报 2023年第12期41卷 61-73页

作者：崔盼望冯和英仝帆陈正武湖南科技大学机械设备健康维护湖南省重点实验室湘潭411201 中国空气动力研究与发展中心气动噪声控制重点实验室绵阳621000

对转螺旋桨的高效率与低油耗等优点已引起人们越来越多的关注。然而,噪声是对转螺旋桨研制过程中亟需解决的关键问题。基于非线性谐波法和声类比理论,研究了转子桨叶数目对对转螺旋桨气动特性和噪声的影响规律及其物理机制。以某型对转... 详细信息

对转螺旋桨的高效率与低油耗等优点已引起人们越来越多的关注。然而,噪声是对转螺旋桨研制过程中亟需解决的关键问题。基于非线性谐波法和声类比理论,研究了转子桨叶数目对对转螺旋桨气动特性和噪声的影响规律及其物理机制。以某型对转螺旋桨为基准对象,研究了7种不同桨叶数组合的对转螺旋桨模型。研究发现,增加对转螺旋桨前/后排转子桨叶数,前/后排转子拉力系数和功率系数将增大,而其波动幅值则明显减小,但这也将损害对转螺旋桨的总推进效率。提出在增加前/后排转子桨叶数的同时适当降低前/后排转子转速,结果表明,该方案既可以保证对转螺旋桨总推力及总效率不受影响,还可以在干涉噪声频率下,获得比单纯增加桨叶数更明显、更宽广的降噪效果。

关键词：对转螺旋桨转子桨叶数非线性谐波方法干涉噪声气动性能