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SmartMat 2023年第6期4卷 84-97页

作者： Xiaoyong Mo Brigitte Bouchet Fabre Nathalie Herlin-Boime Edmund C.M.Tse HKU-CAS Joint Laboratory on New Materials Department of ChemistryUniversity of Hong KongHong Kong SARChina NIMBE CEACNRSCEA SaclayUniversitéParis-SaclayGif-sur-YvetteFrance HKU Zhejiang Institute of Research and Innovation HangzhouChina

Efficient and durable electrocatalysts are instrumental in enabling next-generation fuel cell *** present,expensive precious metals are used as state-of-the-art *** this report,cost-effective nanosized tantalum-based alternatives are synthesized for the first time via a green and scalable laser pyrolysis method as bifunctional catalysts for direct peroxide–peroxide fuel *** rapid laser pyrolysis strategy allows for the production of nanoparticles at a laboratory scale of grams per hour,compatible with a detailed exploration of the functional properties of as-synthesized *** varying the precursor ratio between ammonia and tantalum ethanolate,five tantalum-based nanomaterials(TaNOC)are prepared with crystalline phases of Ta_(2)O_(5),Ta_(4)N_(5),Ta_(3)N_(5),and TaN in tunable *** studies in neutral and alkaline conditions demonstrate that Ta_(4)N_(5) is the active component for both H_(2)O_(2) oxidation and *** isotope effect studies show that protons are involved at or before the rate-determining ***-term stability studies indicate that Ta_(3)N_(5) grants surfactant-free TaNOC-enhanced longevity during electrocatalytic *** together,bifunctional TaNOC can act as active and robust electrocatalysts for H_(2)O_(2) reduction and *** pyrolysis is envisioned to produce refractory metal nanomaterials with boosted corrosion resistance for energy catalysis.

关键词： bifunctional catalysis laser pyrolysis peroxide fuel cells tantalum nanomaterials

Review and Perspectives on Anodes in Rechargeable Aqueous Zinc-Based Batteries

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Renewables 2023年第6期1卷 622-637页

作者： Yanbin Yin Xianfeng Li Division of Energy Storage Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023

Rechargeable aqueous zinc-based batteries(RAZBs)are rapidly developing as very promising energy storage devices for both grid-scale and portable applications,thanks to their inherent safety,cost effectiveness,environmental friendliness,and competitive energy *** efforts have been devoted to alleviating the formidable issues of nonuniform plating/stripping,corrosion,and hydrogen evolution related to zinc *** progress has been made in reversibility and cyclic stability of ***,the problems have yet to be resolved *** this review,strategies for zinc composition and structure optimization and anode–electrolyte interface construction are *** for the further development of highperformance zinc anodes for RAZBs are outlined to guide future research and to accelerate their commercialization process.

关键词： rechargeable batteries zinc batteries anodes advanced strategies zinc composition zinc structure interface

Research on Text Mining of Syndrome Element Syndrome Differentiation by Natural Language Processing

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Digital Chinese Medicine 2019年第2期2卷 61-71页

作者： DENG Wen-Xiang ZHU Jian-Ping LI Jing YUAN Zhi-Ying WU Hua-Ying YAO Zhong-Hua ZHANG Yi-Ge ZHANG Wen-An HUANG Hui-Yong Hunan University of Chinese Medicine ChangshaHunan 410208China TCM Diagnostic Institute Hunan University of Chinese MedicineChangshaHunan 410208China Administration of Traditional Chinese Medicine of Hunan Province ChangshaHunan 410008China Guangzhou Jiayibang Health Management Co. Ltd.GuangzhouGuangdong 510000China

Objective Natural language processing (NLP) was used to excavate and visualize the core content of syndrome element syndrome differentiation (SESD). Methods The first step was to build a text mining and analysis environment based on Python language, and built a corpus based on the core chapters of SESD. The second step was to digitalize the corpus. The main steps included word segmentation, information cleaning and merging, document-entry matrix, dictionary compilation and information conversion. The third step was to mine and display the internal information of SESD corpus by means of word cloud, keyword extraction and visualization. Results NLP played a positive role in computer recognition and comprehension of SESD. Different chapters had different keywords and weights. Deficiency syndrome elements were an important component of SESD, such as "Qi deficiency""Yang deficiency" and "Yin deficiency". The important syndrome elements of substantiality included "Blood stasis""Qi stagnation", etc. Core syndrome elements were closely related. Conclusions Syndrome differentiation and treatment was the core of SESD. Using NLP to excavate syndromes differentiation could help reveal the internal relationship between syndromes differentiation and provide basis for artificial intelligence to learn syndromes differentiation.

关键词： Syndrome element syndrome differentiation (SESD) Natural language processing (NLP) Diagnostics of TCM Artificial intelligence Text mining

Triterpenoid Saponins from Tu Jia Ethnomedicine Bai San Qi and Their Cytotoxicity on Hep G2 and BGC-823 Cell Lines

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Digital Chinese Medicine 2019年第2期2卷 117-124页

作者： LI Wei XIE Qing-Ling LIU Yang XIE Qian LI Bin PENG Cai-Yun WANG Wei TCM and Ethnomedicine Innovation & Development International Laboratory Innovative Materia Medica Research InstituteSchool of PharmacyHunan University of Chinese MedicineChangshaHunan 410208China

Objective Tu Jia ethnomedicine is a unique medical system inherited and adhibited by Tu Jia minority living in central-south china. Panax japonicus C. A. Mey.(Bai San Qi,白三七) is recognized as an effective and rare medicinal plant to treat weakness, fatigue and rheumatism in Tu Jia ethnomedicine. This paper is to discover more substance evidence for the application of Tu Jia ethnomedicine. Methods Column chromatography and preparative high performance liquid chromatography (HPLC) was applied for isolation and purification;1H-NMR, 13C-NMR, 1H-1H COSY, HSQC and HMBC NMR spectra were applied for structure identification;Methyl thiazolyl tetrazolim (MTT) assays were applied for cytotoxicity evaluation. Results Totally 12 known compounds were isolated by column chromatography and preparative HPLC from rhizomes of Panax japonicus C. A. Mey.(Bai San Qi,白三七). Structures of these compounds were identified by their NMR spectra. All the 12 compounds were triterpenoid saponins. Five of them were oleanolic acid type, and the remaining 7 were dammarane type. Eleven compounds were assayed for their cytotoxic activity against Hep G2 human liver cancer cell lines and BGC-823 human gastric cancer cell lines. Three of the 11 showed relatively dominant cytotoxicity against these cell lines. Conclusions A total of 12 known compounds have been identified from Panax japonicus C. A. Mey.(Bai San Qi,白三七);NMR spectra of compounds with similar skeletons showed regular characteristics;3 compounds showed relatively dominant cytotoxicity against Hep G2 and BGC-823 cancer cell lines, and the result can be valued as weak while setting the taxol as a positive control.

关键词： Triterpenoid Saponin Cytotoxicity Araliaceae Panax japonicus C. A. Mey.(Bai San Qi,白三七) Tu Jia ethnomedicine

On the Cahn-Hilliard-Brinkman Equations in R^(4):Global Well-Posedness

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Annals of Applied Mathematics 2021年第4期37卷 513-535页

作者： Bing Li Fang Wang Ling Xue Kai Yang Kun Zhao School of Mathematical sciences Tiangong UniversityTianjin 300387China School of Mathematics and Statistics Changsha University of Science and TechnologyChangshaHunan 410114China College of Mathematical sciences Harbin Engineering UniversityHarbinHeilongjiang 150001China School of Mathematics Southeast UniversityNanjingJiangsu 211189China Department of Mathematics Tulane UniversityNew OrleansLA 70118USA

We study the global well-posedness of large-data solutions to the Cauchy problem of the energy critical Cahn-Hilliard-Brinkman equations in R^(4).By developing delicate energy estimates,we show that for any given initial datum in H^(5)(R^(4)),there exists a unique global-in-time classical solution to the Cauchy *** a special consequence of the result,the global well-posedness of large-data solutions to the energy critical Cahn-Hilliard equation in R^(4) follows,which has not been established since the model was first developed over 60 years *** proof is constructed based on extensive applications of Gagliardo-Nirenberg type interpolation inequalities,which provides a unified approach for establishing the global well-posedness of large-data solutions to the energy critical Cahn-Hilliard and Cahn-Hilliard-Brinkman equations for spatial dimension up to four.

关键词： Cahn-Hilliard-Brinkman equations energy criticality Cauchy problem classical solution global well-posedness

Particularities and Interpretations of Gated Communities in china

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china City Planning Review 2014年第3期23卷 30-39页

作者： Chengjiang DUAN Yaping HUANG Xi ZHANG Candidate of Urban Planning and Design School of Architecture and Urban Planning Huazhong University of Science and Technology School of Architecture and Urban Planning Huazhong University of Science and Technology

Most scholars have recognized gated community as a new kind of negative and unacceptable defensive residential pattern in the context of globalization and neoliberal ideologies. However, widely different from the West, china's gated communities are mainly promoted by china's endogenous culture and social restructuring, which has also aggravated urban problems in recent years, such as spatial privatization, social segregation, residential discrimination, and traffic inaccessibility. According to some surveys and local experiences in china, the government reform of opening gated communities has actually failed since 2005. The objectives of this research therefore are to explain the paradox between maintaining culture and opposing policies, and the disputes between government, developers, residents, and experts relating to gated communities in china. By analyzing its evolution, characteristics, mechanism, and trend, the research finds that gating is represented as distinct symbols for various groups carrying different targets and values, and the solution to eliminate its negative influences is not to find an alternative residential pattern, but to make and implement new estate policies and design specifications.

关键词： gated communities china collectivist culture particularities attitudes of various groups

Effects of Buddlejae Flos Granules on Inflammatory Factors TGF-β1,NF-κB,IL-10 and IL-12 in Lacrimal Gland Cells of Castrated Male Rabbits

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Digital Chinese Medicine 2019年第2期2卷 97-104页

作者： JIANG Peng-Fei PENG Jun TAN Han-Yu OU-YANG Yun QIN Gen-Yan PENG Qing- Hua Hunan University of Chinese Medicine ChangshaHunan 410208China Hunan Provincial Key Laboratory for Prevention and Treatment of Ophthalmdogy and Otolaryngology Diseases with Chinese Medicine ChangshaHunan 410208China The First Affiliated Hospital of Hunan University of Chinese Medicine ChangshaHunan 410007China

Objective To observe the effects of Buddlejae Flos (Mi Meng Hua,密蒙花) granules on the expression of TGF-β1, NF-κB, IL-10 and IL-12 in lacrimal gland cells in castrated male rabbits. Methods A total of 30 New Zealand male white rabbits were randomly divided into 5 groups. Group A: blank group;group B: model group;group C: Buddlejae Flos (Mi Meng Hua,密蒙花) granules group;group D: placebo group;group E: testosterone group. Except for the group A, all rabbits were treated with bilateral testicular and epididymis resection before intervention. Rabbits in group C were administered with Buddlejae Flos (Mi Meng Hua,密蒙花) granules (100 mg/kg), 3 times per day;Rabbits in group D were administered with normal saline, 3 times per day. Rabbits in group E were injected with testosterone propionate (0.5 mL/kg) in the thigh muscle, every 3 days. Schirmer I test (SIT) and break-up time (BUT) were measured on 1st day before modeling and 30th day after modeling. After 30 days of intervention, all rabbits were sacrificed. The removal lacrimal gland was stained in immunohistochemica staining. The expression of TGF-β1, NF-κB, IL-10 and IL-12 in lacrimal gland tissue of each group was detected, and the structure of lacrimal gland was observed. Results The results of SIT and BUT showed that there was significant difference between group B and D compared with group A (P 0.05). There were no significant differences in the comparison of inflammatory factors TGF-β1, NF-κB, IL-10 and IL-12 between group B and D (P > 0.05). There were significant differences between group B and D compared with other groups (P 0.05). Conclusions Buddlejae Flos (Mi Meng Hua,密蒙花) granules have an inhibitory effect on the expression of TGF-β1, NF-κB, IL-10 and IL-12 in castrated male rabbit lacrimal gland cells, and alleviate the inflammation of lacrimal gland tissue by in

关键词： Buddlejae Flos (Mi Meng Hua,密蒙花)granules Castrated male rabbit Lacrimal glandtissue Inflammatory factors Dry eye

Room-temperature multiple ligands-tailored SnO_(2) quantum dots endow in situ dual-interface binding for upscaling efficient perovskite photovoltaics with high V_(OC)

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Light(science & Applications) 2021年第12期10卷 2467-2481页

作者： Zhiwei Ren Kuan Liu Hanlin Hu Xuyun Guo Yajun Gao Patrick W.K.Fong Qiong Liang Hua Tang Jiaming Huang Hengkai Zhang Minchao Qin Li Cui Hrisheekesh Thachoth Chandran Dong Shen Ming-Fai Lo Annie Ng Charles Surya Minhua Shao Chun-Sing Lee Xinhui Lu Frédéric Laquai Ye Zhu Gang Li Department of Electronic and Information Engineering Research Institute for Smart Energy(RISE)Guangdong-Hong Kong-Macao(GHM)Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and DevicesThe Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Department of Electrical and Computer Engineering Nazarbayev UniversityNur-SultanKazakhstan The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057China Hoffmann Institute of Advanced Materials Shenzhen Polytechnic7098 Liuxian BoulevardShenzhen 518055China Department of Applied Physics The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina King Abdullah University of science and Technology(KAUST) KAUST Solar Center(KSC)Physical Sciences and Engineering Division(PSE)Material Science and Engineering Program(MSE)Thuwal 23955-6900Kingdom of Saudi Arabia Department of Physics The Chinese University of Hong KongShatin 999077 Hong KongChina Center of Super-Diamond and Advanced Films(COSDAF) Department of ChemistryCity University of Hong KongHong KongChina

The benchmark tin oxide(SnO_(2))electron transporting layers(ETLs)have enabled remarkable progress in planar perovskite solar cell(PSCs).However,the energy loss is still a challenge due to the lack of“hidden interface”*** report a novel ligand-tailored ultrafine SnO_(2) quantum dots(QDs)via a facile rapid room temperature ***,the ligand-tailored SnO_(2) QDs ETL with multi-functional terminal groups in situ refines the buried interfaces with both the perovskite and transparent electrode via enhanced interface binding and perovskite *** novel ETLs induce synergistic effects of physical and chemical interfacial modulation and preferred perovskite crystallization-directing,delivering reduced interface defects,suppressed non-radiative recombination and elongated charge carrier *** conversion efficiency(PCE)of 23.02%(0.04 cm^(2))and 21.6%(0.98 cm^(2),V_(OC) loss:0.336 V)have been achieved for the blade-coated PSCs(1.54 eV E_(g))with our new ETLs,representing a record for SnO_(2) based blade-coated ***,a substantially enhanced PCE(V_(OC))from 20.4%(1.15 V)to 22.8%(1.24 V,90 mV higher V_(OC),0.04 cm^(2) device)in the blade-coated 1.61 eV PSCs system,via replacing the benchmark commercial colloidal SnO_(2) with our new ETLs.

关键词： perovskite interface quantum

LAMB WAVE BAND GAPS IN ONE-DIMENSIONAL MAGNETOELASTIC PHONONIC CRYSTAL PLATES

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LAMB WAVE BAND GAPS IN ONE-DIMENSIONAL MAGNETOELASTIC PHONON...

Application of Network Pharmacology to Explore the Mechanism of Yi Xin Tai Formula in Treating Heart Failure

2015全国压电和声波理论及器件技术研讨会

作者： Hong-bo ZHANG Jiu-jiu CHEN Xu HAN State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body College of Mechanical and Vehicle EngineeringHunan University

In this paper,we present the theoretical calculations of the dispersion curves of Lamb mode waves in one-dimensional magnetoelastic phononic crystal（PC）plates by using the finite element method（FEM）and the plane wave expansion（PWE）*** effects of filling fraction and plate thickness to lattice pitch ratio on the first band gap（FBG）are analyzed under different magnetic boundary *** numerical results show that the FBG characteristics are significantly influenced by different magnetic boundary *** calculations demonstrate that the filling fraction and the plate thickness to lattice pitch ratio are the most important parameters that affect the width and location of the FBG

关键词： Lamb wave band gap Magnetoelastic phononic crystal plate Magnetic boundary condition

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Digital Chinese Medicine 2019年第4期2卷 237-256页

作者： WEI Jia-Ming ZHU Jun-Ping ZHANG Tong-Yu LI Yu-Ying KUANG Lin GUO Zhi-Hua LI Ya Hunan University of Chinese Medicine ChangshaHunan 410208China Shenzhen Pingle Hospital of Orthopedics and Traumatology Shenzhen Pingshan Chinese Medicine HospitalShenzhenGuangdong 518001China

Objective To explore the possible mechanism of Yi Xin Tai Formula(YXTF)in treating heart failure(HF)by network pharmacology method and to verify the related targets by western *** Using the traditional Chinese medicine systems pharmacology(TCMSP)database with its analysis platform for HF as a disease model,the active ingredients of YXTF were filtered according to the oral bioavailability(OB)and druglikeness(DL),and the corresponding targets were *** disease targets of HF were retrieved by Human Phenotype Ontology(HPO)***,“YXTF compounds-Targets-HF”network was constructed in the Search Tool for the Retrieval of Interacting Genes/Proteins(STRING)database,the network visualized through the Cytoscape software,and the key nodes of the network achieved according to Degree(D),Closeness Centrality(CC),and Betweenness Centrality(BC).Kyoto Encyclopedia of Genes and Genomes(KEGG)gene function enrichment analysis was carried out for the key nodes with the help of GATHER database *** rabbit model of HF was established by coarctation of the abdominal aorta and perfusion of propylthiouracil(PTU).The pathological changes and protein expression of transforming growth factor beta(TGF-β)protein were observed by western ***“YXTF compounds-Targets-HF”network consisted of 403 nodes,136 key nodes and 10 related KEGG pathways that included focal adhesions,cell cycles,mitogen-activated protein kinase(MAPK)signaling pathways,Toll-like receptor signaling pathways,Cytokine-cytokine receptor interactions,Gap junctions,adherens junctions,TGF-β signaling pathways,apoptosis and Wnt signaling pathways,*** expression of TGF-β protein in myocardium decreased *** According to the network pharmacology,the treatment of YXTF for HF might be related to 10 metabolic *** effects of the multicompound-multitarget-multi pathways and the synergistic effect drawn from the compounds that act as the monarch,minister,

关键词： Yi Xin Tai Formula(YXTF) Heart failure(HF) Network pharmacology Western blotting TGF-β signal pathway