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溶液微晶提升全无机CsPbIBr_(2)钙钛矿的薄膜质量并减小碳基光伏器件内部载流子复合

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Science China Materials 2023年第2期66卷 485-492页

作者：闫福日段加龙郭琪瑶张乔宇杨希娅杨培志唐群委 College of Chemical and Biological Engineering Shandong University of Science and TechnologyQingdao 266590China Key Laboratory of Advanced Technique&Preparation for Renewable Energy Materials Ministry of EducationYunnan Normal UniversityKunming 650500China College of Information Science and Technology Jinan UniversityGuangzhou 510632China

钙钛矿前驱体溶液的胶体特性决定了钙钛矿薄膜的质量以及钙钛矿太阳能电池的光电转换效率.在本文中,我们通过简单地调控钙钛矿溶液的温度,实现了钙钛矿薄膜质量的优化.系统的表征测试表明,与室温下的钙钛矿前驱体溶液不同,在高温条件下... 详细信息

钙钛矿前驱体溶液的胶体特性决定了钙钛矿薄膜的质量以及钙钛矿太阳能电池的光电转换效率.在本文中,我们通过简单地调控钙钛矿溶液的温度,实现了钙钛矿薄膜质量的优化.系统的表征测试表明,与室温下的钙钛矿前驱体溶液不同,在高温条件下,钙钛矿前驱体溶液中会产生尺寸在一微米以上的稳定微晶,能够促进钙钛矿中间相的自发成核并实现薄膜的择优生长.薄膜质量优化后,由于缺陷态减少和晶粒尺寸增加,光生电荷能够快速地在大晶粒内部传输,降低晶粒内部的非辐射复合以及辐射复合,将电池效率提升至11.12%,明显高于未优化器件的8.51%.更重要的是,优化器件表现出非常优异的空气稳定性和高温稳定性.

关键词：薄膜质量钙钛矿太阳能电池钙钛矿薄膜光电转换效率空气稳定性自发成核电池效率载流子复合

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碘促进N,N-二甲基乙酰胺(DMA)与胺的转酰胺反应

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有机化学 2023年第11期43卷 3960-3965页

作者：马豪杰周风院苏凡文韩波李然张玉琦王记江延安大学化学与化工学院、陕西省化学反应工程重点实验室、新能源与新功能材料重点实验室陕西延安716000

报道了一种新颖、简便的N,N-二甲基乙酰胺(DMA)与胺的转酰胺反应,用于合成乙酰胺类化合物,产率适中至优良.廉价的碘可以有效地促进该反应,且反应条件简单、官能团耐受性良好、无需预官能团化,具有一定的实用性,可广泛用于乙酰胺药物和... 详细信息

报道了一种新颖、简便的N,N-二甲基乙酰胺(DMA)与胺的转酰胺反应,用于合成乙酰胺类化合物,产率适中至优良.廉价的碘可以有效地促进该反应,且反应条件简单、官能团耐受性良好、无需预官能团化,具有一定的实用性,可广泛用于乙酰胺药物和生物活性分子的合成.

关键词：碘 N-乙酰化转酰胺 N,N-二甲基乙酰胺乙酰胺

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A Structure-Based Allosteric Modulator Design Paradigm

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Health Data Science 2023年第1期3卷 90-101页

作者： Mingyu Li Xiaobin Lan Xun Lu Jian Zhang College of Pharmacy Ningxia Medical UniversityYinchuanNingxiaHui Autonomous RegionChina. State Key Laboratory of Medical Genomics National Research Center for Translational Medicine at ShanghaiRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina. Medicinal Chemistry and Bioinformatics Center Shanghai Jiao Tong University School of MedicineShanghai 200025China.

Importance:Allosteric drugs bound to topologically distal allosteric sites hold a substantial promise in modulating therapeutic targets deemed undruggable at their orthosteric ***,allosteric modulator discovery has predominantly relied on serendipitous high-throughput ***,the landscape has undergone a transformative shift due to recent advancements in our understanding of allosteric modulation mechanisms,coupled with a significant increase in the accessibility of allosteric structural *** factors have extensively promoted the development of various computational methodologies,especially for machine-learning approaches,to guide the rational design of structure-based allosteric ***:We here presented a comprehensive structure-based allosteric modulator design paradigm encompassing 3 critical stages:drug target acquisition,allosteric binding site,and modulator *** recent advances in computational methods in each stage are ***,we delve into analyzing the successes and obstacles encountered in the rational design of allosteric ***:The structure-based allosteric modulator design paradigm holds immense potential for the rational design of allosteric *** hope that this review would heighten awareness of the use of structure-based computational methodologies in advancing the field of allosteric drug discovery.

关键词： steric rational holds

research on the Integrated Training Path of Secondary Vocational,Vocational,and Undergraduate Talents Based on Modern Vocational education Group

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Journal of Contemporary educational research 2023年第11期7卷 75-83页

作者： Hui Li Xu-liang Duan Jia-xin Yue School of Electromechanical and Information Engineering Chengdu Agricultural CollegeChengdu 611130Sichuan ProvinceChina chengdu research Institute of Huawei Technologies Co. Ltd.Chengdu 611740Sichuan ProvinceChina

Accelerating the construction of modern vocational education groups and promoting the integrated training of secondary vocational,vocational,and undergraduate talents,providing talent support for regional economic development,are inevitable choices to enhance the adaptability of vocational *** on the new development and requirements in the new situation,vocational colleges actively explore the path of connecting and cultivating secondary vocational,vocational,and undergraduate talents in accordance with the talent needs of local economic development and industrial system *** linkage between government,school,and enterprise is established to build a modern vocational education group,aiming to build a professional chain in the industrial chain and promote innovative development of the new industrial *** on the development needs of professional clusters,a multi-level system of connecting and cultivating secondary vocational,vocational,and undergraduate talents is constructed,which is in line with industry and enterprise *** is also necessary to build a“post-course competition certification”talent training model for connecting secondary vocational,vocational,and undergraduate students,rely on the advantages of multiple schools and enterprises,establish a platform for integrating industry and education,and innovate the evaluation system for connecting secondary vocational,vocational,and undergraduate students.

关键词： Modern vocational education group Integrated training Vocational education Talent cultivation

邻近盾构施工对既有隧道沉降的影响：现场监测与智能预测（英文）

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2023年第12期 1106-1120页

作者：冉龙丁杨陈其志邹宝平叶肖伟浙江科技学院土木与建筑工程学院浙大城市学院城市基础设施智能化浙江省工程研究中心浙江大学建筑工程学院

目的：随着我国城市地下空间的迅猛发展，盾构法因其具有地质适应性强、速度快、安全可靠等优点，逐步成为了城市地铁建设的主流。盾构在开挖掘进的过程中势必会对四周围岩造成一定的扰动，从而引发地层变形与地基的隆起或沉降，进而对... 详细信息

目的：随着我国城市地下空间的迅猛发展，盾构法因其具有地质适应性强、速度快、安全可靠等优点，逐步成为了城市地铁建设的主流。盾构在开挖掘进的过程中势必会对四周围岩造成一定的扰动，从而引发地层变形与地基的隆起或沉降，进而对临近建筑物造成影响。然而，由于土体介质的复杂性，国内外对于地表沉降规律的研究尚处于不成熟阶段。因此，开展地铁施工过程中的结构健康监测、预测地铁施工引起的周边结构变形以及总结变形规律可以为地铁施工的安全预警提供技术支持和理论参考，对提高地铁施工安全性有重要意义。创新点：1.以杭州地铁施工为工程背景，分析临近施工对既有地铁结构变形的影响，并研究监测中的难点和重点；2.基于监测获取的海量数据，建立基于反向传播（BP）神经网络的变形预测模型。方法：分析BP神经网络的4种结构（即单输入-单隐含层-单输出、多输入-单隐含层-单输出、单输入-双隐含层-单输出和多输入-双隐含层-单输出）对预测性能的影响，并通过实测数据进行验证。结论：1.本工程基坑影响范围内同时存在地铁车站、附属结构和盾构隧道等不同结构形式的地铁设施，且其受基坑施工影响的程度各不相同；保护区监测工作过程中除了关注各自自身结构变形情况外，还应重点加强车站与附属结构、车站与盾构隧道结构间的差异沉降监测。2.对于单输入-单隐含层-单输出的BP神经网络，其最优隐含层节点数为1；对于多输入-单隐含层-单输出的BP神经网络，其最优输入数为2，隐含层节点数为1；对于单输入-双隐含层-单输出的BP神经网络，其最优隐含层节点数分别为1和1；对于多输入-双隐含层-单输出的BP神经网络，其最优输入数为5，隐含层节点数分别为1和5。3.当确定输入量时，隐含层节点数应不大于输入数量，以避免出现过拟合现象；当输入量为1～3时，最优隐含层节点数为1。

关键词：地铁隧道水平位移隧道道床沉降隧道差异沉降变形预测 BP神经网络

基于小波-贝叶斯的隧道短期沉降预测：一种概率分析方法（英文）

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2023年第11期 960-978页

作者：丁杨叶肖伟丁智魏纲崔允亮韩震金涛浙大城市学院土木工程学系浙大城市学院城市基础设施智能化浙江省工程研究中心浙大城市学院浙江省城市盾构隧道安全建造与智能养护重点实验室浙江大学建筑工程学院南京地铁运营有限责任公司

目的：隧道沉降是会严重影响隧道结构及其临近建筑的安全隐患。本文旨在建立一种沉降预测模型用于实时预测南京地铁隧道的沉降情况，并通过探讨沉降数据的预处理方法和所提模型中的网络结构（移动窗口和预测比例）对预测性能的影响，确... 详细信息

目的：隧道沉降是会严重影响隧道结构及其临近建筑的安全隐患。本文旨在建立一种沉降预测模型用于实时预测南京地铁隧道的沉降情况，并通过探讨沉降数据的预处理方法和所提模型中的网络结构（移动窗口和预测比例）对预测性能的影响，确定模型的最优结构组成。创新点：1.考虑未知沉降值的不确定性，并结合高斯先验和协方差函数推导出沉降预测值的均值和方差表达式；2.基于现场实测数据，验证所提出模型的有效性。方法：1.通过理论推导，构建考虑沉降不确定性的贝叶斯预测模型，并结合高斯先验过程计算得到沉降预测值的均值和方差表达式；2.通过南京地铁现场实测数据验证所提模型的有效性，并通过参数敏感性分析，确定最优移动窗口及预测比例；3.通过数值计算，探讨数据预处理方法对模型预测精度的影响。结论：1.本文提出的概率预测模型能够预测沉降的发展规律，且沉降变化值均在95%的置信区间内。2.移动窗口过大会导致概率预测模型过拟合，而移动窗口过小则会导致概率预测模型欠拟合；针对本文的沉降数据，最佳移动窗口为5。3.对原始沉降数据进行小波降噪处理，能够提高概率预测模型的预测精度。

关键词：地铁建设沉降概率预测结构健康监测小波去噪高斯先验贝叶斯仿真

Adsorption Properties of Phosphate by CaCl2-loaded Straw Microwave Charcoal

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Meteorological and Environmental research 2023年第2期14卷 53-56页

作者： Jianliang ZHU Yonghong SHUI Zhejiang Institute of Communications Hangzhou 311112China chengdu Textile College Chengdu 611731China

Phosphate is the main limiting factor of water eutrophication. In order to effectively control phosphorus pollution in water, straw microwave charcoal(CaCl2SBC) was prepared with straw after CaCl2activation and microwave biomass carbonization, and the adsorption effect of phosphate by CaCl2SBC was analyzed. The results showed that the prepared straw microwave charcoal contained hydroxyl and carbon-carbon double bonds, and CaCl2SBC had a very obvious adsorption effect on phosphate in eutrophic water. The optimum conditions for the adsorption of phosphate by CaCl2SBC are as follows: initial concentration of phosphate was 50 mg/L;adsorption time was 120 min;pH was 9;adsorption temperature was 25 ℃;CaCl2SBC dosage was 300 mg/L. Under the optimum conditions, the maximum removal rate can reach 99%. The prepared straw microwave charcoal can be used for phosphorus removal from eutrophic water.

关键词： Biomass charcoal Phosphate Adsorption Eutrophication

research and Practice on the Construction of Municipal Industry-education Consortium Based on the Integration of Industrial Chain,Innovation Chain,Talent Chain,and education Chain

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Journal of Contemporary educational research 2023年第12期7卷 53-63页

The construction of a municipal industry-education consortium is one of the important measures for the“one body,two wings,and five key points”reform of China’s modern vocational education system in the new *** is of great significance for the integrated promotion of the three major national strategies of education,technology,and *** the construction path of municipal industry-education consortia from the perspective of“four-chain integration”is essential for improving the quality of vocational education talents,comprehensively promoting local economic and social development,and serving the national strategy of revitalizing the country through science and *** new generation of information technology industry-education consortium in chengdu actively explores new paths of industry-education integration,science-education integration,and vocational-education *** has formed a“park+alliance”to establish a diversified collaborative construction and management mechanism,a“professional+industry”school-enterprise cooperation to promote industrial transformation and upgrading,a“teaching+research and development”to build an industry-university research innovation platform to empower high-quality development,and a“cultivation+employment”to explore a matrix style talent cultivation model,thus promoting regional governments,industries enterprises,and higher education *** leveraging complementary advantages involves capitalizing on the spatial cluster *** requires a foundation in the education chain,guided by the industrial chain,activation of the innovation chain,establishment of a talent chain,enhancement of the value chain,and the promotion of a modern vocational education *** structure should align with market demand and industry structure,ultimately promoting regional economic and social development.

关键词： Four-chain integration Municipal industry-education consortium Integration of industry and education Vocational colleges

Exploration on Ideological and Political Construction of Higher Vocational English Course in Southern Xinjiang from the Perspective of "Cultural Confidence"

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Asian Agricultural research 2023年第3期15卷 66-69页

作者： Huiqin LIU Maierhaba·Ababake Lilian YANG Lidan HE Hetian Vocational Technical College Hetian 848000China College of Horticulture and Landscape Architecture Tianjin Agricultural UniversityTianjin 030801China

At present,the lack of Chinese culture in higher vocational English teaching in southern Xinjiang is *** existing English curriculum system is not enough to support the goal of cultivating ethnic minority college students cultural confidence,and its curriculum ideological and political construction is still in the initial stage of *** combination of the Chinese national culture and the ethnic culture of Xinjiang and the ideological and political elements organically integrated into cultural confidence have endowed the vocational English education in Xinjiang with the characteristics of the *** this paper,from the perspective of China s"cultural confidence",ideological and political elements were explored,and the background of ideological and political construction in higher vocational English teaching course in southern Xinjiang was analyzed;it is expounded that the ideological and political construction is an inevitable requirement for the high-quality development of vocational English education in southern Xinjiang,and the content design and implementation path of higher vocational English course was explored to provide new ideas and new ways for the curriculum ideological and political construction of higher vocational English teaching in southern Xinjiang.

关键词： Cultural confidence Southern Xinjiang Vocational English Ideological and political construction