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Synthesis and Structure of a 3D Manganese Coordination Polymer with 1,3-Bis(benzimidazol-1-ylmethyl)-2,4,6-trimethylbenzene and 1,5-Naphthalenedisulfonate

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Chinese Journal of Structural Chemistry 2007年第8期26卷 929-932页

作者： ZHOU Hui DU Shao-wu li Zhi-Hua State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter The Chinese Academy of Sciences Fuzhou Fujian 350002 China

The organic-inorganic hybrid polymer [Mn（mbbimb）2（1,5-nds）]n 1 has been synthesized using 1,5-naphthalenedisulfonate （1,5-nds） and 1,3-bis（benzimidazol-1-ylmethyl）- 2,4,structure analysis indicates that 1 crystallizes in monoclinic, space group C2/c with a=21.3546（17）, b=11.8841（7）, c=22.1588（16）A, β=108.058（3）°, C60H54MnN8O6S2, Mr=1102.17, Z=4, V=5346.5（7）A^3, Dc=1.369 g/cm^3, μ=0.386 mm^-1, F（000）=2300, S=1.091, R=0.0634 and wR=0.1559 for 4641 observed reflections （I 〉 2σ（I））. The Mn center is six-coordinated to furnish a distorted octahedral geometry, and the overall framework is a 6-connected 3D net.

关键词： solvothermal reaction organic-inorganic polymer 6-connected 3D net manganese complex

The impact of regulatory and financial discrimination on China's low-carbon development:Considering firm heterogeneity

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Advances in Climate Change Research 2020年第2期11卷 72-84页

作者： TANG Wei-Qi MENG Bo wu li-Bo CIB Research Shanghai200120China Center for Energy Economics and Strategy Studies Fudan UniversityShanghai200433China Institute of Developing Economies–JETRO Chiba2618545Japan Tokyo Foundation for Policy Research Tokyo1066234Japan School of Economics Fudan UniversityShanghai200433China

Firms in China within the same industry but with different ownership and size have different production functions and face different emission regulations and financial conditions,thus can give very different responses to environmental *** fact has been largely ignored in most of the low-carbon development related *** an augmented Chinese input–output table in which information about firm size(large-and small and medium-sized firms)and ownership(state-,foreign-,and private-owned firms)are explicitly reported,a dynamic computable general equilibrium model is developed in this study to analyze the impact of alternative low-carbon policy designs with different regulatory coverage and financial equalization on heterogeneous *** simulation results show that,with the fully balanced regulation coverage and equalized financial system for heterogeneous firms,the total green investment accounts for 4%of GDP in 2030 for fulfilling China's commitment to reduce carbon emissions,which is the lowest among the various scenarios;about one-third of this investment is made by small and private firms;at the same time,green investment efficiency will be the highest,about 84%higher than that of the business-as-usual ***,a market-oriented and new technology-driven arrangement and mechanism for sharing emission reduction burden and allocating green investment across heterogeneous firms,especially to small and medium-sized firms,is crucial for China to achieve a more ambitious emission target in the long run.

关键词： Small-and medium-sized enterprise(SME) Green finance Firm heterogeneity ETS CO2 emissions Low-carbon Chinese economy

Chemical composition and Pb(II)binding of dissolved organic matter in a hypersaline lake in China

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Journal of Oceanology and limnology 2022年第1期40卷 113-127页

作者： Keli YANG Yaoling ZHANG Yaping DONG wu li Key Laboratory of Comprehensive and Highly Effi cient Utilization of Salt Lake Resources Qinghai Institute of Salt LakesChinese Academy of SciencesXining 810008China Qinghai Technology Research and Development Center of Comprehensive Utilization of Salt Lakes Resources Xining 810008China Qinghai Provincial Key Laboratory of Resources and Chemistry of Salt Lakes Xining 810008China

Dissolved organic matter(DOM)plays a vital role in promoting carbon and nutrient *** is a food source for organisms and controls the migration and transformation of trace metals and other contaminants in aquatic *** contributions of aquatic DOM to the environment and ecology of a system are closely related to its abundance and chemical *** this study,the chemical composition and binding properties of DOM in a hypersaline lake watershed were investigated for the fi rst time using dissolved organic carbon(DOC)analysis,absorption spectroscopy,Fourier transform infrared spectroscopy,pyrolysis-GC-MS(Py-GC-MS),and fl uorescence parallel factor(PARAFAC)analysis combined with Pb(II)titration *** results showed that DOM from the tributaries that fl owed into the lake had a lower DOC content,higher molecular weight,and higher specifi c UV absorbance than the DOM in lake ***-like fl uorophores were mainly found in tributary and lake surface water DOM(LSDOM)and humic-like substances were abundant in lake groundwater DOM(LGDOM).Using this multi-methodological approach,we found that the DOM from the hypersaline lake watershed was mainly from microbial origins,and consisted of aromatics,carbohydrates,and *** results from quantitative analysis showed that DOM from the infl owing tributaries contained more aromatics,lower carbohydrates,and lower aliphatics than DOM in the *** aromatic hydrocarbons and carbohydrates were more abundant in LSDOM than *** results from the Pb(II)titration technique coupled with PARAFAC analysis suggested that PARAFAC-derived components had relatively low condition stability constants(log K_(M)line lake watershed varies in its composition and potential to bind with metals.

关键词： dissolved organic matter hypersaline lake watershed composition parallel factor analysis Pb(II)titration

Variation of the uniaxial tensile behavior of ultrafine-grained pure aluminum after cyclic pre-deformation

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International Journal of Minerals,Metallurgy and Materials 2018年第6期25卷 663-671页

作者： Ying Yan li-jia Chen Guo-qiang Zhang Dong Han Xiao-wu li Department of Materials Physics and Chemistry School of Materials Science and Engineering and Key Laboratory for Anisotropy and Texture of Materials of Ministry of Education Northeastern University School of Materials Science and Engineering Shenyang University of Technology

To explore the influence of cyclic pre-deformation on the mechanical behavior of ultrafine-grained（UFG）materials with a high stacking fault energy（SFE）,UFG Al processed by equal-channel angular pressing（ECAP）was selected as a target material and its tensile behavior at different pre-cyclic levels D（D=N_i/N_f,where N_i and N_f are the applied cycles and fatigue life at a constant stress amplitude of 50 MPa,respectively）along with the corresponding microstructures and deformation features were systematically *** cyclic pre-deformation treatment on the ECAPed UFG Al led to a decrease in flow stress,and a stress quasi-plateau stage was observed after yielding for all of the different-state UFG Al *** yield strengths_（YS）,ultimate tensile strengths_（UTS）,and uniform straineexhibited a strong dependence on D when D≤20%;however,when D was in the range from 20%to 50%,no obvious change in mechanical properties was *** micro-mechanism for the effect of cyclic pre-deformation on the tensile properties of the ECAPed UFG Al was revealed and compared with that of ECAPed UFG Cu through the observations of deformation features and microstructures.

关键词： ultrafine-grained aluminum cyclic pre-deformation tensile property microstructure deformation mechanism

Identification of a novel cDC2-committed progenitor within mouse common dendritic cell progenitor population

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Protein & Cell 2022年第4期13卷 302-307页

作者： Yujie Tian Xueheng Guo Tao wu Kuangyu Fei li wu Institute for Immunology Tsinghua-Peking Center for Life SciencesSchool of MedicineTsinghua UniversityBeijing 100084China Joint Graduate Program of Peking-Tsinghua-National Institute of Biological Sciences School of Life SciencesTsinghua UniversityBeijing 100084China Beijing Key Laboratory for Immunological Research on Chronic Diseases Beijing 100084China National Education Examinations Authority Beijing 100084China

Dear Editor,Dendritic cells(DCs)are the most efficient professional antigen presenting cells that act as sentinels of the immune system and conduct vital functions in the initiation and regulation of innate and adaptive immunities(Wculek et al.,2020).In addition to being critical cellular components in pathogen clearance,DCs are promising targets for improved tumor immunotherapy,vaccine design,and intervention of autoimmune diseases(Nutt and Chopin,2020).DCs can be classified as plasmacytoid DCs(pDCs)and conventional DCs(cDCs)in both mouse and human(Anderson et al.,2018;Nutt and Chopin,2020).

关键词： progenitor committed professional

Fermion dynamical symmetry and strongly-correlated electrons:A comprehensive model of high-temperature superconductivity

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Frontiers of physics 2020年第4期15卷 35-99页

作者： Mike Guidry Yang Sun lian-Ao wu Cheng-li wu Department of Physics and Astronomy Universilty of TenesseeKnorilleTN 37996USA School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China IKERBASQUE Basque Foundation for Science48011 BilbaoSpainand Department of Theoretical Physics and History of ScienceBasque Country University(EHU/UPV)Post Office Bor 64448080 BilbaoSpain Department of Physics Chung-Yuan Christian UniversityChungliTaiwan 320China

We review application of the SU(4)model of strongly-correlated electrons to cuprate and iron-based superconductors.A minimal self-consistent generalization of BCS theory to incorporate antiferromag-netism on an equal footing with pairing and strong Coulomb repulsion is found to account system-atically for the major features of high-temperature superconductivity,with microscopic details of the parent compounds entering only *** provides a systematic procedure to separate es-sential from peripheral,suggesting that many features exhibited by the high-Te data set are of interest in their own right but are not central to the superconducting *** generally,we propose that the surprisingly broad range of conventional and unconventional superconducting and superfluid behavior observed across many fields of physics results from the systemnatic appearance of similar al-gebraic structures for the emergent ffoctive Harmiltonians,even though the microscopic Harmiltonians of the corresponding parent states may differ radically from each other.

关键词： strongly-correlated electrons SU(4)model fermian dynamical symmetry high-temperature superconductivity

Measuring the kinematics of a free-flying hawk-moth(Macroglossum stellatarum)by a comb-fringe projection method

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Acta Mechanica Sinica 2010年第1期26卷 67-71页

作者： Guanhao wu li jiang Zeng State Key Laboratory of Precision Measurement Technology and Instruments Department of Precision Instruments Tsinghua University 100084 Beijing China

We describe a 2D fringe projection method that involves projecting two groups of sharp comb fringes onto a free-flying hawk-moth from different directions and recording the images of distorted fringes by two high speed cameras from two orthogonal views. By calculating the 3D coordinates of the points on the hawk-moth and three-dimensional reconstruction of the wing, the flight trajectory, body attitude and wing kinematics including flapping angle, elevation angle, torsion angle, and camber deformation are obtained.

关键词： Fringe projection Kinematics Measurement Hawk-moth

Selective photosynthesis of imines from biomass-derived aldehydes over Ni/TiO_(2)

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Rare Metals 2024年第3期43卷 1116-1124页

作者： wu-lin li Qing-Qing Zhang lin Dong Wen-Jun Zhang li-li lin Zu-Peng Chen Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsCollege of Chemical EngineeringNanjing Forestry UniversityNanjing210037China Institute of Industrial Catalysis State Key Laboratory of Green Chemistry Synthesis TechnologyCollege of Chemical EngineeringZhejiang University of TechnologyHangzhou310014China

Photocatalytic reductive amination of biomass-derived aldehydes is a desirable way to selectively upgrade biomass into value-added nitrogen-containing chemicals under mild ***,it is challenging to produce imines in high selectivity because of the undesirable side reactions caused by the activity of functional ***,we demonstrate the highly reactive and selective production of imines from biomass derived aldehydes via the photocatalytic reductive amination,using a defective TiO_(2)supported nickel *** employment of methanol as the hydrogen donor and ammonia solution as the nitrogen source avoids the use of high-pressure H_(2)and expensive amines,rendering the current catalytic process safe,economical,and environmentally *** depth investigations attribute the improved separation and transfer of photogenerated charge carriers to the presence of oxygen vacancies and decorated Ni nanoparticles,thereby accelerating the production of imines from benzaldehyde amination(conversion,95.8%;seleetivity,95.2%).Furthermore,the developed system could be easily translated to the photocatalytic conversions of various biomass derived aldehydes,which provided an example of a cost-effective and sustainable approach for the valorization of biomass derived feedstocks.

关键词： Photocatalysis Biomass derivatives Imines Reduction amination Heterogeneous catalyst

Impact factors of the degradation of bisphenol A by nitrocellulose membrane under illumination

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Journal of Environmental Sciences 2021年第2期33卷 193-202页

作者： li wu Xinmiao Jin Tongqian Zhao Haipo Wang Zhifeng Dai Institute of Resources and Environment Henan Polytechnic UniversityJiaozuo 454000China Collaborative Innouation Center for Coal-Bed Methane and Shale Gas of Henan Jiaozuo 454000China

Nitrocellulose membrane(NCM)can produce hydroxyl radicals under illumination,which promotes the oxidative degradation of organic *** this paper,NCM was used to oxidize bisphenol A(BPA)under simulated *** effects of p H,temperature,light intensity,anion and cation on the degradation of BPA were *** photodegradation process of BPA was *** optimal photolysis rate was 0.031 min^(-)1 when the temperature was 30°C,the light intensity was 2.67×10^4 Lux,and the p H value was *** alkaline environment,temperature and light intensity can promote the photodegradation of *** for nitrate ions,anions and cations can inhibit the photodegradation of *** with cations,anions have a greater inhibitory effect on BPA *** degradation products of BPA by NCM were analyzed by gas chromatographic/*** study may provide useful information for the BPA degradation by NCM in complex water samples.

关键词： Nitrocellulose membrane Bisphenol A Degradation Illumination Impact factors