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Chemical Research in Chinese Universities 2015年第4期31卷 549-552页

作者： WANG yi gao Jingyi zhao Mengdan LI Jiamei Faculty of Chemistry and Chemical Engineering Yunnan Normal University Kunming 650500 P. R. China

Bifunctional Salen-Cu（II） complex catalyzed cross-coupling reactions of aryl halids with imidazoles or phenylboronic acid reagents have been developed as practical methods for C--N and C--C bond formation. The procedure tolerates aryl halides with various functional groups（such as methoxy, acetyl, nitrile, fluoro and nitro groups） and gives the corresponding coupling products in moderate to high yields. The catalyst remained active after fiye successive catalytic runs without loss in performance.

关键词： Salcn-Cu(II) complex Homogenous catalysis Cross-coupling N-Arylation

Generalized plasticity model considering grain crushing and anisotropy for rockfill materials

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Journal of Central South University 2022年第4期29卷 1274-1288页

作者： ZHANG Xiang-tao gao yi-zhao YU Yu-zhen WANG Xiang-nan ZHAN Zheng-gang State Key Laboratory of Hydroscience and Engineering Tsinghua UniversityBeijing 100084China Power China Guiyang Engineering Co. Ltd.Guiyang 550081China

Rockfill materials have been widely used in the construction of rockfill dam,railway and highway subgrade due to its high filling density,good compaction performance,strong water permeability,small settlement deformation and high bearing capacity.A reasonable constitutive model for rockfill materials is very important for engineering computation and analysis,and has a great development *** on the crushing stress and spatial mobilized plane(SMP),a state parameter that can comprehensively reflect the anisotropy and grain crushing is *** state parameter is used to improve the MPZ model(a modifed ZienkiewiczⅢmodel),so that a generalized plastic model is constructed to describe the stress and deformation characteristics of rockfill materials in *** validity of the developed model is verified by a series of conventional triaxial tests with different inclination angles of the compaction *** variation trend of the constructed anisotropy indexωcan reflect the non monotonic variation of the deformation and strength of rockfill with the direction angle of large principal stress,so the model can reflect the obvious difference caused by the initial anisotropy of rockfill on the mechanical properties.

关键词： constitutive model anisotropy grain crushing rockfill materials

Low-cost and fluoride-free synthesis of MFI zeolite nanosheets with enhanced stability for benzene alkylation with ethanol

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Journal of Energy Chemistry 2025年第1期100卷 458-468页

作者： Peng Zhu Cun Liu yiren Yu Guoshu gao Yumeng zhao Xiongfu Zhang Guodong Liu Guohui Yang State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences

Zeolite nanosheets with a short b-axis thickness are highly desirable in lots of catalytic reactions due to their reduced diffusion resistance. Nevertheless, conventional synthesis methods usually require expensive structure-directing agents(SDAs), pricey raw materials, and eco-unfriendly fluorine-containing additives. Here, we contributed a cost-effective and fluoride-free synthesis method for synthesizing high-quality MFI zeolite nanosheets through a Silicalite-1(Sil-1) seed suspension and urea cooperative strategy, only with inexpensive colloidal silica as the Si source. Our approach was effective for synthesizing both Sil-1 and aluminum-containing ZSM-5 nanosheets. By optimizing key synthesis parameters,including seed aging time, seed quantity, and urea concentration, we achieved precise control over the crystal face aspect ratio and b-axis thickness. We also revealed a non-classical oriented nanosheet growth mechanism, where Sil-1 seeds induced the formation of quasi-ordered precursor particles, and the(010)crystal planes of these particles facilitated urea adsorption, thereby promoting c-axis-oriented *** obtained ZSM-5 nanosheets exhibited exceptional catalytic performance in the benzene alkylation with ethanol, maintaining stability for over 500 h, which is 5 times longer than traditional ZSM-5 catalysts. Furthermore, large-scale production of ZSM-5 nanosheets was successfully carried out in a 3 L highpressure autoclave, yielding samples consistent with those from laboratory-scale synthesis. This work marks a significant step forward in the sustainable and efficient production of MFI nanosheets using inexpensive and environmentally friendly raw materials, offering the broad applicability in catalysis.

关键词： MFI zeolite ZSM-5 Nanosheets Scale-up synthesis Aromatic alkylation

“赵氏孤儿”书写中情与理的两维考量——以《史记·赵世家》“程婴谋取他人婴儿”与元杂剧《赵氏孤儿》“程婴舍子”为例

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陕西师范大学学报（哲学社会科学版） 2018年第2期47卷 61-67页

作者：高益荣赵莎莎陕西师范大学文学院陕西西安710119

"赵氏孤儿"故事在流传过程中,司马迁的《史记·赵世家》和纪君祥的《赵氏孤儿大报仇》是非常重要的两个阶段。其中最需要认真分析的一个细节就是代替孤儿死去的孩子的来源:《史记》里是"程婴谋取他人婴儿",杂剧里是"程婴舍子"。这一细... 详细信息

"赵氏孤儿"故事在流传过程中,司马迁的《史记·赵世家》和纪君祥的《赵氏孤儿大报仇》是非常重要的两个阶段。其中最需要认真分析的一个细节就是代替孤儿死去的孩子的来源:《史记》里是"程婴谋取他人婴儿",杂剧里是"程婴舍子"。这一细节看似小问题,其实不然,它正反映出司马迁和纪君祥不同的伦理观。从西方人学理论看,《史记》的书写,更具有其合理性,反映出司马迁既从儒家伦理出发歌颂程婴的忠义精神,又不使其陷入不讲亲情的尴尬,达到情与理的完美融合。

关键词：《赵氏孤儿》《史记》 “谋取他人婴儿” 情理考量

Research on the Teaching Reformation of Fundamentals of Mechanical Manufacturing Technology Course Based on the Cultivation of Innovation Ability

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Research on the Teaching Reformation of Fundamentals of Mech...

第三届教学管理与课程建设学术会议

作者： ying XU, Shuren ZHANG, yi gao, Weihong zhao Department of Mechanical Engineering,Changchun University of Science &Technology , Changchun, Jilin 130022, China

Relying on the construction platform base on the national excellent course of fundamentals of mechanical manufacturing technology, in order to cultivate innovative talents, this paper combined internal relations of theoretical courses, practice and experiment teaching, elaborated the course teaching content and mode, teaching reformation methods and teaching approaches.

关键词： Fundamentals of Mechanical Manufacturing Technology Teaching Reformation Innovation Ability

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锂电池电化学传递函数模型建模及参数辨识

电源技术 2019年第7期43卷 1132-1135页

作者：杨俊张希高一钊上海交通大学汽车电子控制技术国家工程实验室

为了建立高精度锂电池模型及确定电池参数,以锂电池电化学方程为基础,通过拉氏变换和帕德近似等方法,提出了基于动态响应的电化学传递函数模型。利用扫描电镜(SEM)观察拆解后的电池内部微观结构,确定了电池部分物理参数。将传递函数模... 详细信息

为了建立高精度锂电池模型及确定电池参数,以锂电池电化学方程为基础,通过拉氏变换和帕德近似等方法,提出了基于动态响应的电化学传递函数模型。利用扫描电镜(SEM)观察拆解后的电池内部微观结构,确定了电池部分物理参数。将传递函数模型与等效电路模型进行匹配,利用含有遗忘因子的递推最小二乘法辨识了电解液扩散系数及体积分数。将获得的电池参数带入模型中,通过对比模型在不同工况下的仿真结果与实验结果,验证了所辨识的电池参数与模型的正确性。

关键词：电化学模型帕德近似传递函数递推最小二乘法参数辨识

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自适应的混合域音频水印新算法

信号处理 2017年第6期33卷 828-835页

作者：张涛张彩霞高新意赵鑫天津大学电子信息工程学院天津300072

本文结合小波包变换和心理声学模型,提出了一种自适应的混合域音频盲水印算法,在不引入明显听觉失真的前提下,实现了大容量的水印嵌入。算法首先采用小波包变换将分段音频信号分解到26个子带中,然后对每个子带的小波包系数进行离散余弦... 详细信息

本文结合小波包变换和心理声学模型,提出了一种自适应的混合域音频盲水印算法,在不引入明显听觉失真的前提下,实现了大容量的水印嵌入。算法首先采用小波包变换将分段音频信号分解到26个子带中,然后对每个子带的小波包系数进行离散余弦变换,计算出子带掩蔽阈值。根据子带掩蔽阈值自适应的选取水印嵌入段和水印嵌入位置,同时根据掩蔽阈值计算出的水印嵌入强度自适应地控制由水印嵌入引起的听觉偏倚。二值水印图像通过量化索引调制的方法嵌入到音频信号的中低频系数中,提取水印时不需要原始音频载体。实验结果表明本算法在水印容量、不可感知性和鲁棒性之间达到了很好的平衡,水印容量在576.7 bps到689.5 bps之间,算法对添加噪声、重新量化、重新采样、低通滤波和MP3压缩均具有很好的鲁棒性。

关键词：数字水印心理声学模型小波包变换余弦变换

Longitudinal assessment of peripheral organ metabolism and the gut microbiota in an APP/PS1 transgenic mouse model of Alzheimer’s disease

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Neural Regeneration Research 2025年第10期20卷 2982-2997页

作者： Hongli Li Jianhua Huang Di zhao Lemei Zhu Zheyu Zhang Min yi Weijun Peng Department of Integrated Traditional Chinese&Western Medicine The Second Xiangya HospitalCentral South UniversityChangshaHunan ProvinceChina National Clinical Research Center for Metabolic Diseases ChangshaHunan ProvinceChina Hunan Academy of Chinese Medicine ChangshaHunan ProvinceChina Academician Workstation Changsha Medical UniversityChangshaHunan ProvinceChina

Alzheimer’s disease not only affects the brain,but also induces metabolic dysfunction in peripheral organs and alters the gut *** aim of this study was to investigate systemic changes that occur in Alzheimer’s disease,in particular the association between changes in peripheral organ metabolism,changes in gut microbial composition,and Alzheimer’s disease *** do this,we analyzed peripheral organ metabolism and the gut microbiota in amyloid precursor protein-presenilin 1(APP/PS1)transgenic and control mice at 3,6,9,and 12 months of ***-month-old APP/PS1 mice exhibited cognitive impairment,Alzheimer’s disease-related brain changes,distinctive metabolic disturbances in peripheral organs and fecal samples(as detected by untargeted metabolomics sequencing),and substantial changes in gut microbial composition compared with younger APP/PS1 ***,a strong correlation emerged between the gut microbiota and kidney metabolism in APP/PS1 *** findings suggest that alterations in peripheral organ metabolism and the gut microbiota are closely related to Alzheimer’s disease development,indicating potential new directions for therapeutic strategies.

关键词： Alzheimer’s disease APP/PS1 mice brain-kidney axis gut microbiota heart-brain axis liver-brain axis lung-brain axis microbiota-gut-brain axis peripheral organ metabolism spleen-brain axis

极端暴雨洪水及侵蚀产沙对延河流域植被恢复响应的比较研究

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自然资源学报 2017年第10期32卷 1755-1767页

作者：顾朝军穆兴民孙文义高鹏赵广举西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室陕西杨凌712100 中国科学院水利部水土保持研究所陕西杨凌712100

黄河支流延河在2013及1977年7月发生极端暴雨事件,但由于所处时间流域下垫面的差异,暴雨的灾害表现迥异。论文比较分析延河流域2013和1977年7月暴雨的降雨量、强度、频率及其水沙变化特征,讨论了产生灾害不同的主要原因。结果表明:2013... 详细信息

黄河支流延河在2013及1977年7月发生极端暴雨事件,但由于所处时间流域下垫面的差异,暴雨的灾害表现迥异。论文比较分析延河流域2013和1977年7月暴雨的降雨量、强度、频率及其水沙变化特征,讨论了产生灾害不同的主要原因。结果表明:2013年7月延河流域降雨总量、笼罩面积、降雨强度、暴雨频率均大于1977年,而日最大径流量、最大输沙量、最大含沙量、洪峰流量、峰值沙量、高含沙量历时却低于1977年。2013年延河流域暴雨灾害以地质灾害为主,1977年则以河道洪水灾害为主。退耕还林(草)工程实施后流域内植被大面积恢复,导致降雨产流产沙关系发生变化是产生上述现象的主要原因。

关键词：暴雨植被径流泥沙重力侵蚀延河

Unlocking the stable interface in aqueous zinc-ion battery with multifunctional xylose-based electrolyte additives

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Journal of Energy Chemistry 2025年第1期100卷 770-778页

作者： Xiaoqin Li Jian Xiang Lu Qiu Xiaohan Chen yinkun zhao Yujue Wang Qu Yue Taotao gao Wenlong Liu Dan Xiao zhaoyu Jin Panpan Li Institute for Advanced Study Chengdu University School of Mechanical Engineering Chengdu University College of Food and Biological Engineering Chengdu University Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China College of Materials Science and Engineering Sichuan University

The growth of dendrites and the side reactions occurring at the Zn anode pose significant challenges to the commercialization of aqueous Zn-ion batteries（AZIBs）. These challenges arise from the inherent conflict between mass transfer and electrochemical kinetics. In this study, we propose the use of a multifunctional electrolyte additive based on the xylose（Xylo） molecule to address these issues by modulating the solvation structure and electrode/electrolyte interface, thereby stabilizing the Zn anode. The introduction of the additive alters the solvation structure, creating steric hindrance that impedes charge transfer and then reduces electrochemical kinetics. Furthermore, in-situ analyses demonstrate that the reconstructed electrode/electrolyte interface facilitates stable and rapid Zn2+ion migration and suppresses corrosion and hydrogen evolution reactions. As a result, symmetric cells incorporating the Xylo additive exhibit significantly enhanced reversibility during the Zn plating/stripping process, with an impressively long lifespan of up to 1986 h, compared to cells using pure ZnSO4electrolyte. When combined with a polyaniline cathode, the full cells demonstrate improved capacity and long-term cyclic stability. This work offers an effective direction for improving the stability of Zn anode via electrolyte design, as well as highperformance AZIBs.

关键词： Solvation