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Metal-organic frameworks with dinuclear metal centers for synergistically boosting CO2 photoreduction

Science China Chemistry 2025年第1期68卷 201-208页

作者： Hui-Feng Wang Wen-Jie Shi Yu-Xin yang Bao-Xia Dong Tong-Bu lu Di-Chang Zhong School of Chemistry and Chemical Engineering Yangzhou University Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology

Dinuclear metal synergistic catalysis （DMSC） has been proved powerful in boosting CO2reduction,while this has not been achieved in heterogeneous catalysts with long-range order *** this study,we,by introduction of metal catalytic centers into an indium-based metal-organic framework （MOF）,obtained a series of isostructural In-MOFs,including three MOFs with mononuclear metal catalytic center （M-In）,three MOFs with dinuclear homometallic catalytic centers （MM-In）,and three MOFs with dinuclear heterometallic catalytic centers (MM’-In,M/M’=Co（II）,Ni（II）,Zn（II）).It was found that all these MOFs can serve as catalysts for photochemical CO2reduction to *** with M-In,the catalytic activities of MM-In were obviously enhanced,and that of MM’-In was further significantly *** example,the CO yield of Co Zn-In reaches a record value of 12,700μmol g-1h-1,which is 4.0,8.1,9.4,and 18.6-fold higher than that of Co Co-In,Zn Zn-In,Co-In,and Zn-In,***,the catalytic activities of Co Ni-In and Ni Zn-In also show different fold increase than those of corresponding dinuclear homometallic and mononuclear metallic *** results of control experiments and theoretical calculation reveal that the higher catalytic activities of MM-In over M-In can be ascribed to the DMSC effect,and the higher catalytic activity of MM’-In over MM-In can be ascribed to the strengthened DMSC *** work reveals the relationship between DMSC effect and bimetal centers in CO2reduction,which provides new insights into the DMSC and paves a new way to design highly active catalysts for photochemical CO2reduction.

关键词： metal-organic frameworks dinuclear metal centers synergistic catalysis CO2 reduction photocatalysis

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Sharp Estimates of p-Adic Hardy and Hardy-Littlewood-Pólya Operators

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Acta Mathematica Sinica,English Series 2013年第1期29卷 137-150页

作者： Zun Wei FU Qing yan WU Shan zhen lu Department of Mathematics Linyi University School of Mathematical Sciences Beijing Normal University

In this paper we get the sharp estimates of the p-adic Hardy and Hard^Littlewood-Pdlya operators on L^q （｜x｜apdx）. Also, we prove that the commutators generated by the p-adic Hardy operators （Hardy-Littlewood-Pdl... 详细信息

关键词： p-Adic Hardy operator p-Adic Hardy-Littlewood-P61ya operator central BMO function,Herz space

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Single and Combined Effects of Estrone and 17 β-Estradiol on Male Goldfish

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Biomedical and Environmental Sciences 2013年第3期26卷 176-184页

作者： yan zhen Hua lu Guang Hua yanG Xiao Fan Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education College of EnvironmentHohai University

Objective To assess the single and combined effects of estrone （El） and 1713-estradiol （E2） on goldfish （ Carassius auratus）. Methods Batch tests were conducted. Serum levels of vitellogenin （VTG） and E2, gonadosomatic indices （GSI）, gonadal DNA damage and liver 7-ethoxyresorufin-O-deethylase （EROD） activity were measured after exposure for 14 days. Results The VTG level increased significantly in a concentration-dependent manner. The serum E2 level was significantly higher and the GSI level was significantly lower in goldfish after exposed to the 3 drugs. DNA damage occurred in treated samples and EROD activity was significantly suppressed 7 days after exposure. The joint effect of E1 and E2 was additive with regard to VTG induction. Conclusion The results of our study highlight a series of effects of steroidal estrogens on goldfish. Further study is needed to confirm their effect as a whole.

关键词： Vitellogenin DNA damage EROD activity Carassius auratus

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CO2-mediated bicarbonate conversion to concentrated formate in a CEM-based electrolyzer

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Journal of Energy Chemistry 2025年第1期100卷 605-611页

作者： Haocheng Xiong Donghuan Wu Haonan Li Andrew Li Qikun Hu Siyao Song Bingjun Xu Qi lu State Key Laboratory of Chemical Engineering Department of Chemical Engineering Tsinghua University College of Chemistry and Molecular Engineering Peking University Ordos Laboratory

Renewable energy-driven bicarbonate conversion to valuable chemicals presents an attractive strategy for mitigating CO2emissions,as bicarbonate can be efficiently generated from the capture of atmospheric CO2using alkaline solutions with reactive *** this work,we present a CO2-mediated bicarbonate conversion to pure formate using a cation exchange membrane-based electrolyzer with a 25 cm2electrode *** electrolysis achieved selectivities exceeding 75%for formate at a total current of 2.5 A,achieving formate concentrations up to 1.2 M and yields as high as 95%over extended *** techno-economic assessment confirmed the economic viability of the process,highlighting the potential for bicarbonate electrolysis as a sustainable method for producing valuable chemicals.

关键词： Electrocatalysis Techno-economic assessments Electrochemistry Flow electrolyzer

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Thermal annealing promoted room temperature phosphorescence: motion models and internal mechanism

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National Science Review 2023年第11期10卷 171-182页

作者： yan Gao Jie lu Qiuyan Liao Shuhui Li Qianqian Li zhen Li Tai Kang Center for Life and Medical Sciences Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials Wuhan University Department of Chemistry

Thermal annealing has been proven to be an efficient method to optimize the device performance of organic and polymeric opto-electronic materials. However, no detailed information of aggregate structures was obtained for a deeper understanding of what happens during thermal annealing. Herein, through modulation of molecular configurations by tunable linkage positions, and the amplified amplitudes of molecular motions by incorporation of additional methylene units, accurate changes of aggregated structures upon thermal annealing have been achieved, accompanying with the ‘turn-on’ room temperature phosphorescence(RTP) response by about 4800-and 177-fold increase of lifetimes. The stretching and swing motion models have been proposed, which afforded an efficient way to investigate the science of dynamic aggregation in depth.

关键词： room temperature phosphorescence thermal annealing structural reconfiguration molecular motion intermolecular interaction

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论古中医药学的始祖——伏羲

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西部中医药 2012年第4期25卷 1-4页

作者：杨国栋牛军强闫振录雷艳芳景俊天水市中西医结合医院甘肃天水741020 兰州大学第一医院

从伏羲文化中太极、阴阳、五行、八卦学说的发展与演变可以看出,伏羲是古中医药学的始祖。伏羲古中医药学的基本内容紧紧围绕着太极、阴阳、五行、八卦学说,其中独特的生命哲学思想体系更是伏羲古中医药学的重要组成部分,为后世的中医... 详细信息

从伏羲文化中太极、阴阳、五行、八卦学说的发展与演变可以看出,伏羲是古中医药学的始祖。伏羲古中医药学的基本内容紧紧围绕着太极、阴阳、五行、八卦学说,其中独特的生命哲学思想体系更是伏羲古中医药学的重要组成部分,为后世的中医药学奠定了理论基础,促进了中医药学的进一步发展,并产生了深远影响。

关键词：伏羲文化古中医药学太极阴阳五行八卦

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Multi-Stage-Based Siamese Neural Network for Seal Image Recognition

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 405-423页

作者： Jianfeng lu Xiangye Huang Caijin Li Renlin Xin Shanqing Zhang Mahmoud Emam School of Computer Science and Technology Hangzhou Dianzi UniversityHangzhou310018China Shangyu Institute of Science and Engineering Hangzhou Dianzi UniversityShaoxing312300China Faculty of Artificial Intelligence Menoufia UniversityShebin El-Koom32511Egypt

Seal authentication is an important task for verifying the authenticity of stamped seals used in various domains to protect legal documents from tampering and *** seal inspection is commonly audited manually to ensure document ***,manual assessment of seal images is tedious and laborintensive due to human errors,inconsistent placement,and completeness of the *** image recognition systems are inadequate enough to identify seal types accurately,necessitating a neural network-based method for seal image ***,neural network-based classification algorithms,such as Residual Networks(ResNet)andVisualGeometryGroup with 16 layers(VGG16)yield suboptimal recognition rates on stamp ***,the fixed training data categories make handling new categories to be a challenging *** paper proposes amulti-stage seal recognition algorithmbased on Siamese network to overcome these ***,the seal image is pre-processed by applying an image rotation correction module based on Histogram of Oriented Gradients(HOG).Secondly,the similarity between input seal image pairs is measured by utilizing a similarity comparison module based on the Siamese ***,we compare the results with the pre-stored standard seal template images in the database to obtain the seal *** evaluate the performance of the proposed method,we further create a new seal image dataset that contains two subsets with 210,000 valid labeled pairs in *** proposed work has a practical significance in industries where automatic seal authentication is essential as in legal,financial,and governmental sectors,where automatic seal recognition can enhance document security and streamline validation ***,the experimental results show that the proposed multi-stage method for seal image recognition outperforms state-of-the-art methods on the two established datasets.

关键词： Seal recognition seal authentication document tampering siamese network spatial transformer network similarity comparison network

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Advances in the Development of Gradient Scaffolds Made of Nano‑Micromaterials for Musculoskeletal Tissue Regeneration

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Nano-Micro Letters 2025年第3期17卷 455-500页

作者： Lei Fang Xiaoqi Lin Ruian Xu lu Liu Yu Zhang Feng Tian Jiao Jiao Li Jiajia Xue Beijing Laboratory of Biomedical Materials Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China State Key Laboratory of Organic‑Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China School of Biomedical Engineering Faculty of Engineering and ITUniversity of Technology SydneySydneyNSW 2007Australia

The intricate hierarchical structure of musculoskeletal tissues,including bone and interface tissues,necessitates the use of complex scaffold designs and material structures to serve as tissue-engineered *** has led to growing interest in the development of gradient bone scaffolds with hierarchical structures mimicking the extracellular matrix of native tissues to achieve improved therapeutic *** on the anatomical characteristics of bone and interfacial tissues,this review provides a summary of current strategies used to design and fabricate biomimetic gradient scaffolds for repairing musculoskeletal tissues,specifically focusing on methods used to construct compositional and structural gradients within the *** latest applications of gradient scaffolds for the regeneration of bone,osteochondral,and tendon-to-bone interfaces are ***,the current progress of testing gradient scaffolds in physiologically relevant animal models of skeletal repair is discussed,as well as the challenges and prospects of moving these scaffolds into clinical application for treating musculoskeletal injuries.

关键词： Gradient scaffolds Musculoskeletal tissues Advanced manufacturing Biomaterials Tissue regeneration

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Emerging approaches applied to maritime transport research:Past and future

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Communications in Transportation Research 2021年第1期1卷 76-89页

作者： Ran yan Shuaian Wang lu zhen Gilbert Laporte Department of Logistics and Maritime Studies The Hong Kong Polytechnic University999077Hong KongChina School of Management Shanghai UniversityShanghai200444China Department of Decision Sciences HEC MontrealMontrealQuebecH3T 2B1Canada School of Management University of BathBathBA27AYUK

Maritime transport is the backbone of international trade and *** transport research can be roughly divided into two categories,namely the shipping side and the port *** of the classic approaches adopted to address practical problems in these research topics are based on long-term observations and expert knowledge,while few of them are based on historical data accumulated from *** recent years,emerging approaches,which we refer to as machine learning and deep learning techniques in this essay,have been receiving a wider attention to solve practical *** a relatively conservative industry,there are some initial trials of applying the emerging approaches to solve practical problems in the maritime *** objective of this essay is to review the application of emerging approaches to maritime transport *** main research topics in maritime transport and classic methods developed to solve them are first *** introduction of emerging approaches and their suitability to be applied in maritime transport research is then *** existing studies are then reviewed according to problem settings,main data sources,and emerging approaches *** and solutions in the process are also discussed from the perspectives of data,model,users,and ***,promising future research directions are *** essay is the first to give a comprehensive review of existing studies on developing machine learning and deep learning models together with popular data sources used to address practical problems in maritime transport.

关键词： Maritime transport Shipping Port Data-driven modeling Digitalization in the maritime industry

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Penicillium marneffei chylous ascites in acquired immune deficiency syndrome:A case report

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World Journal of Gastroenterology 2012年第37期18卷 5312-5314页

作者： Yin-Zhong Shen zhen-yan Wang Hong-Zhou lu Department of Infectious Diseases Shanghai Public Health Clinical CenterFudan UniversityShanghai 201508China

Penicillium marneffei （R marneffei） infection usually occurs with skin, bone marrow, lung or hepatic involve- ment. However, no cases of P. mameffei infection with chylous ascites have been reported thus far. In this re- port, we describe the first case of acquired immune de- ficiency syndrome （AIDS） which has been complicated by a P. marneffei infection causing chylous ascites. We describe the details of the case, with an emphasis on treatment regimen. This patient was treated with am- photericin B for 3 mo, while receiving concomitant ther- apy with an efavirenz-containing antiretroviral regimen, but cultures in ascitic fluid were persistently positive for P. marneffei. The infection resolved after treatment with high-dose voriconazole （400 mg every 12 h） for 3 too. R marneffei should be considered in the differential di- agnosis of chylous ascites in human immunodeficiency virus patients. High-dose voriconazole is an effective, well-tolerated and convenient option for the treatment of systemic infections with R marneffei in AIDS patients on an efavirenz-containing antiretroviral regimen.

关键词： Chylous ascites Penicillium marneffei Ac-quired immune deficiency syndrome Voriconazole Efa-virenz Fungal sepsis

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