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杜甫《春日忆李白》的“渭北”辨析

江苏工程职业技术学院学报 2024年第1期24卷 50-54页

作者：杜宇翔陕西师范大学文学院西安710119

对杜甫《春日忆李白》中“渭北”的注解存在“长安”与“咸阳”的分歧。通过考证诗歌的创作背景推断杜甫《春日忆李白》的创作时间大致在天宝六载(公元747年)春天,与那年杜甫在长安参加制举考试时间相距不久,故“渭北”指长安。此外,用... 详细信息

对杜甫《春日忆李白》中“渭北”的注解存在“长安”与“咸阳”的分歧。通过考证诗歌的创作背景推断杜甫《春日忆李白》的创作时间大致在天宝六载(公元747年)春天,与那年杜甫在长安参加制举考试时间相距不久,故“渭北”指长安。此外,用“以杜证杜”的方法,结合杜甫《社日两篇》其二的诗旨诗意,能侧面佐证“渭北”指长安。使用“渭北”指代长安是唐人的行文习惯,究其原因与秦汉时期关中的都城建制历史有关。明确唐诗“渭北”指代长安的事实,可以为分析唐人认同渭北等同于长安的空间认知提供帮助。

关键词：杜甫《春日忆李白》渭北长安咸阳

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产业空间专项规划的技术框架与深圳实践

规划师 2024年第3期40卷 67-75页

作者：吕凯杜宇翔刘懿陈瑜李云深圳市龙岗区规划国土发展研究中心规划设计所深圳市龙岗区规划国土发展研究中心深圳大学建筑与城市规划学院深圳大学城市规划系深圳大学深圳市建筑环境优化设计研究重点实验室

针对国土空间规划体系下产业空间专项规划的本质特征和底层逻辑进行探讨,识别战略性、协调性、专业性、实施性的新要求,剖析产业空间专项规划的研究对象和研究体系,在此基础上构建“理论基础—规划策略—传导和管控”的产业空间专项规... 详细信息

针对国土空间规划体系下产业空间专项规划的本质特征和底层逻辑进行探讨,识别战略性、协调性、专业性、实施性的新要求,剖析产业空间专项规划的研究对象和研究体系,在此基础上构建“理论基础—规划策略—传导和管控”的产业空间专项规划技术框架。以都市圈一体化理论、产业集群理论、产城融合理论、基于产业需求的空间供应理论、存量土地开发市场化机制为理论基础,提出“主导产业筛选—空间集聚区划定—基础设施保障—产城融合—园区设计—实施路径”的规划策略,建立“专项规划—详细规划—方案设计”的纵向传导体系,并以深圳为例,探索技术框架的具体应用,以期为其他城市产业空间专项规划的编制提供参考。

关键词：产业空间专项规划国土空间规划理论基础技术框架深圳

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Tuneable red,green,and blue single-mode lasing in heterogeneously coupled organic spherical microcavities

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Light(Science & Applications) 2020年第1期9卷 584-592页

作者： yuxiang du Chang-Ling Zou Chunhuan Zhang Kang Wang Chan Qiao Jiannian Yao Yong Sheng Zhao CAS Key Laboratory of Photochemistry Institute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Quantum Information and Synergetic Innovation Center of Quantum Information and Quantum PhysicsUniversity of Science and Technology of ChinaHefeiAnhui 230026China

Tuneable microlasers that span the full visible spectrum,particularly red,green,and blue(RGB)colors,are of crucial importance for various optical ***,RGB microlasers usually operate in multimode because the mode selection strategy cannot be applied to the entire visible spectrum simultaneously,which has severely restricted their applications in on-chip optical processing and ***,an approach for the generation of tuneable multicolor single-mode lasers in heterogeneously coupled microresonators composed of distinct spherical microcavities is *** each microcavity serving as both a whispering-gallery-mode(WGM)resonator and a modulator for the other microcavities,a single-mode laser has been *** colors of the single-mode lasers can be freely designed by changing the optical gain in coupled cavities owing to the flexibility of the organic *** from the excellent compatibility,distinct color-emissive microspheres can be integrated to form a heterogeneously coupled system,where tuneable RGB single-mode lasing is realized owing to the capability for optical coupling between multiple *** findings provide a comprehensive understanding of the lasing modulation that might lead to innovation in structure designs for photonic integration.

关键词： modulator resonator mode

Eubacterium coprostanoligenes alleviates chemotherapy-induced intestinal mucositis by enhancing intestinal mucus barrier

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Acta Pharmaceutica Sinica B 2024年第4期14卷 1677-1692页

作者： Dongsheng Bai Jiawei Zhao Runde Wang Jiaying du Chen Zhou Chunyang Gu yuxiang Wang Lulu Zhang Yue Zhao Na Lu State Key Laboratory of Natural Medicines Jiangsu Key Laboratory of Carcinogenesis and InterventionDepartment of PhysiologySchool of Basic Medicine and Clinical PharmacyChina Pharmaceutical UniversityNanjing 210009China Department of Clinical Pharmacology School of PharmacyNanjing Medical UniversityNanjing 211166China

Chemotherapy-induced mucositis represents a severe adverse outcome of cancer treatment,significantly curtailing the efficacy of these treatments and,in some cases,resulting in fatal *** identifying intestinal epithelial cell damage as a key factor in chemotherapy-induced mucositis,the paucity of effective treatments for such damage is *** our study,we discovered that Eubacterium coprostanoligenes promotes mucin secretion by goblet cells,thereby fortifying the integrity of the intestinal mucus *** enhanced barrier function serves to resist microbial invasion and sub-sequently reduces the inflammatory ***,this effect remains unobtrusive to the anti-tumor efficacy of chemotherapy ***,*** up-regulates the expression of AUF1,leading to the stabilization of Muc2 mRNA and an increase in mucin synthesis in goblet *** espe-cially significant finding is that *** activates the AhR pathway,thereby promoting the expression of *** summary,our results strongly indicate that *** enhances the intestinal mucus barrier,effec-tively alleviating chemotherapy-induced intestinal mucositis by activating the AhR/AUFl pathway,consequently enhancing Muc2 mRNA stability.

关键词： Chemotherapy Mucositis Eubacterium coprostanoligenes MUC2 AUF1

Recent advances in photoelectrochemistry-coupled dual-modal biosensors:From constructions to biosensing applications

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Nano Research 2024年第6期17卷 5512-5528页

作者： yuxiang Dong Weisa Wang Changqing Ye Yanlin Song School of Materials Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China Key Laboratory of Green Printing Institute of ChemistryChinese Academy of SciencesBeijing 100190Chin

Precise and sensitive bioanalysis has been the major and urgent pursuit in pathologic diagnosis,food safety,environment monitoring,and drug ***(PEC)bioanalysis,as one of the most promising detection technologies,has rapidly expanded within the field of ***,most of reported PEC analysis approaches still suffer from weak external anti-interference ability,high background,and the risk of false positive or negative errors due to their inherent single-signal *** overcome these shortcomings,new PEC-coupled dual-modal analysis approaches have been developed,where a dual-response signal can be derived through two completely different mechanisms and independent signal transduction *** review introduces the basic principles of PEC biosensing and enumerates and classifies the substrate or probe selections,constructions,and applications of PEC-coupled dual-modal ***,the challenges and developmental prospects of PEC-coupled dual-mode sensing technologies are evaluated and *** hope that this review will provide valuable insights into the latest advancements and practical applications of dual-mode PEC bioanalysis,which will be of great interest to those seeking to stay informed in this field.

关键词： photoelectrochemistry biosensor electrochemistry colorimetry electrochemiluminescence fluorescence dual-mode detection

Direct Conversion of Methane to Propylene

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Research 2024年第2期2023卷 463-472页

作者： Yunpeng Hou yuxiang Lan Chao Qian Shaodong Zhou College of Chemical and Biological Engineering Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture TechnologyZhejiang University310027 HangzhouP.R.China Zhejiang Provincial Innovation Center of Advanced Chemicals Technology Institute of Zhejiang University-Quzhou324000 QuzhouP.R.China

Nonoxidative coupling of methane exhibits promising prospect in that it affords value-added hydrocarbons and hydrogen with high atom ***,challenge remains in direct,selective conversion of methane to more valuable hydrocarbons like *** current work presents a catalyst with well-dispersed Ta atoms anchored by graphitic C_(3)N_(4)-supported *** a catalyst is able to convert methane selectively to ethylene and propylene at a relatively low temperature(350℃).The conception of the active center and construction of the catalyst have been described,and the origins of the catalytic performance are discussed.

关键词： methane catalyst hydrocarbons

黄河流域经济增长-产业发展-生态环境的耦合协同关系

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中国人口·资源与环境 2021年第2期31卷 119-129页

作者：任保平杜宇翔西北大学中国西部经济发展研究院陕西西安710127 西北大学经济管理学院陕西西安710127

黄河流域生态保护和高质量发展已成为重大国家战略,流域内的经济增长、产业发展与生态环境协同发展问题正逐渐成为研究热点。文章分析了黄河流域经济增长、产业发展与生态环境三者的耦合协同机理。在此基础上构建耦合协同综合评价指标体... 详细信息

黄河流域生态保护和高质量发展已成为重大国家战略,流域内的经济增长、产业发展与生态环境协同发展问题正逐渐成为研究热点。文章分析了黄河流域经济增长、产业发展与生态环境三者的耦合协同机理。在此基础上构建耦合协同综合评价指标体系,运用耦合协调度模型、空间自相关模型、灰色关联模型分析了2012—2018年黄河流域62个地级市经济增长、产业发展与生态环境各系统的综合水平及三者耦合协调度的时空差异及其驱动因素。运用GM(1,1)灰色预测模型预测了短期内三者耦合协调度的变化趋势。研究表明:①黄河流域经济增长、产业发展与生态环境各系统综合水平总体上呈现平稳态势,三者发展速度差异不明显,但耦合协同严重失调,黄河流域整体尚未达到三者协同发展状态。②黄河流域经济增长、产业发展与生态环境三者的耦合协调度呈现出显著的空间自相关性,全局空间自相关为正,局部空间自相关呈现出聚集趋同特征。③预测结果表明黄河流域经济增长、产业发展与生态环境三者的耦合协同发展在短期内保持平稳。在预测期内黄河流域经济增长、产业发展与生态环境仍未达到协同发展状态,部分地区的耦合协调度有所提高,但总体提升与演进的速度较缓慢。最后,基于黄河流域经济发展与生态环境保护分析,为黄河流域经济增长、产业发展与生态环境耦合协同构建了包含组织保障、空间治理、政策保障以及体制机制等支撑体系,以期为实现黄河流域高质量发展奠定科学决策基础。

关键词：黄河流域高质量发展耦合协同

Machine learning-driven optimization of plasma-catalytic dry reforming of methane

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Journal of Energy Chemistry 2024年第9期96卷 153-163页

作者： yuxiang Cai Danhua Mei Yanzhen Chen Annemie Bogaerts Xin Tu Department of Electrical Engineering and Electronics University of LiverpoolLiverpool L693GJUK Research Group PLASMANT Department of ChemistryUniversity of AntwerpUniversiteitsplein 1BE-2610 Wilrijk-AntwerpBelgium College of Electrical Engineering and Control Science Nanjing Tech UniversityNanjing 211816JiangsuChina

This study investigates the dry reformation of methane(DRM)over Ni/Al_(2)O_(3)catalysts in a dielectric barrier discharge(DBD)non-thermal plasma reactor.A novel hybrid machine learning(ML)model is developed to optimize the plasma-catalytic DRM reaction with limited experimental *** address the non-linear and complex nature of the plasma-catalytic DRM process,the hybrid ML model integrates three well-established algorithms:regression trees,support vector regression,and artificial neural networks.A genetic algorithm(GA)is then used to optimize the hyperparameters of each algorithm within the hybrid ML *** ML model achieved excellent agreement with the experimental data,demonstrating its efficacy in accurately predicting and optimizing the DRM *** model was subsequently used to investigate the impact of various operating parameters on the plasma-catalytic DRM *** found that the optimal discharge power(20 W),CO_(2)/CH_(4)molar ratio(1.5),and Ni loading(7.8 wt%)resulted in the maximum energy yield at a total flow rate of∼51 mL/***,we investigated the relative significance of each operating parameter on the performance of the plasma-catalytic DRM *** results show that the total flow rate had the greatest influence on the conversion,with a significance exceeding 35%for each output,while the Ni loading had the least impact on the overall reaction *** hybrid model demonstrates a remarkable ability to extract valuable insights from limited datasets,enabling the development and optimization of more efficient and selective plasma-catalytic chemical processes.

关键词： Plasma catalysis Machine learning Process optimization Dry reforming of methane Syngas production

Performance and mechanism of La-Fe metal-organic framework as a highly efficient adsorbent for fluoride removal from mine water

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Journal of Environmental Sciences 2024年第5期139卷 245-257页

作者： Chaomin Jia Jianbing Wang Huijiao Wang Sichao Zhu Xiaohui Zhang yuxiang Wang School of Chemical&Environmental Engineering China University of Mining&Technology-BeijingBeijing 100083China Beijing Polytechnic Beijing 100176China Chinese Society for Urban Studies Beijing 100835China

Water fluoride pollution has caused non-negligible harm to the environment and humans,and thus it is crucial to find a suitable treatment *** this study,La-Fe@PTA adsorbent was synthesized for the defluoridation of mine *** results showed that the optimum conditions for defluoridation by La-Fe@PTA were p H close to 7.0,the initial F-concentration of 10 mg/L,the dosage of 0.5 g/L and the adsorption time of 240 *** with SO_4^(2-),Cl^(-),NO_(3)^(-),Ca^(2+)and Mg^(2+),CO_(3)^(2-)and HCO_(3)^(-)presented severer inhibition on fluoride uptake by La-Fe@*** adsorption process fits well with the pseudo-second-order kinetic model and Freundlich model,and the maximum adsorption capacity of Langmuir model was 95 mg/***-bed adsorption results indicated that fluoride in practical fluorinated mine water could be effectively removed from 3.6 mg/L to less than 1.5 mg/L within130 bed volume(BV)by using 1.5 g La-Fe@***,the adsorbent still had good adsorption capacity after regeneration,which confirms the great application potential of La-Fe@PTA as a fluoride ion *** mechanism analysis showed that La-Fe@PTA adsorption of fluorine ions is a physicochemical reaction driven by electrostatic attraction and ion exchange.

关键词： Adsorption La-Fe@PTA Fluoride ion Mine water Mechanism