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Electrocatalytic cleavage of a lignin β-O-4 model compound and coupling with nitrogen-containing aromatics using Prussian blue analogue-derived nickel–cobalt spinel

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Journal of Energy Chemistry 2025年第1期100卷 628-636页

作者： yi qi Xueying Chen Bowen Liu Xuliang Lin Xueqing qiu Yanlin qin Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006GuangdongChina Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center Jieyang 515200GuangdongChina Guangdong Basic Research Center of Excellence for Ecological Security and Green Development Guangdong University of TechnologyGuangzhou 510006GuangdongChina

Electrochemical conversion of lignin for the production of high-value heterocyclic aromatic compounds has great *** demonstrate the targeted synthesis and cation modulation of NiCo_(2)O_(4)spinel nanoboxes,synthesized via cation exchange and calcination *** catalysts exhibit excellent efficacy in the electrocatalytic conversion of lignin model compounds,specifically 2-phenoxy-1-phenylethanol,into nitrogen-containing aromatics,achieving high conversion rates and *** catalysts were synthesized via a cation exchange and calcination oxidation process,using Prussian blue nanocubes as *** porous architecture and polymetallic composition of the NiCo_(2)O_(4)spinel demonstrated superior performance in electrocatalytic oxidative coupling,achieving a 99.2 wt%conversion rate of the 2-phenoxy-1-phenylethanol with selectivities of 37.5 wt%for quinoline derivatives and 31.5 wt%for *** innovations include the development of a sustainable one-pot synthesis method for quinoline derivatives,the elucidation of a multistage reaction pathway involving CAO bond cleavage,hydroxyaldol condensation,and CAN bond formation,and a deeper mechanistic understanding derived from DFT *** work establishes a new strategy for lignin valorization,offering a sustainable route to produce high-value nitrogen-containing aromatics from renewable biomass under mild conditions,without the need for additional reagents.

关键词： Spinel Biomass valorization Electrocatalysis Lignin oxidation Coupling

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Effect of the yi qi HUA YU Recipe on Schwann Cell Activity Following Lumbar Nerve Root Compression

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中国中医骨伤科杂志 2002年第6期 7-11页

作者： Zhou Chongjian,Shi qi,Wang Yongjun,Hou Baoxing,et al (Long Hua hospital attached to Shanghai University of TCM, Shanghai 200032)

Objective:To study the effect of the yi qi HUA YU recipe on Schwann cells in a neuromuscular junction after compression of the L5 nerve root in ***:Using immunohistochemistry, confocal laser scanning techniques and the polyclonal antibody S-100 as a Schwann cell marker, motor endplates were visualized with fluorescein-conjugated a-bungarotoxin(a-BTX). The effects of the yi qi HUA YU recipe on Schwann cells in a neuromuscular junction were observed at 10d? 20d? 30d?and 60d after the L5 nerve root was ***:The aggregates ,sprouts and extension of terminal Schwann cells during degeneration, the amount of overlap of terminal Schwann cells with endplates and the reformation of neuromuscular junctions during regeneration were superior in cells treated with the yi qi HUA YU recipe than in control ***:The yi qi HUA YU recipe can promote the increase of Schwann cells and enhance regeneration. It can also accelerate the reformation of neuromuscular junctions and reduce regeneration time.

关键词： Spinal nerve roots/injuriesNeuromuscular junction Nerve regenerationNerve terminal Schwann cellsyi qi HUA YU recipe

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黄河流域生态系统服务权衡协同关系及其时空异质性

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环境科学 2025年第2期46卷 972-989页

作者：王奕淇孙学莹长安大学经济与管理学院西安710064

探析生态系统服务之间权衡协同关系及其内在影响机制,对提高生态系统的整体效益,保障生态系统服务的可持续供给至关重要.以黄河流域499个县域为研究对象,在测度黄河流域各县域生态系统服务价值的基础上,采用Pearson相关系数法测度各县... 详细信息

探析生态系统服务之间权衡协同关系及其内在影响机制,对提高生态系统的整体效益,保障生态系统服务的可持续供给至关重要.以黄河流域499个县域为研究对象,在测度黄河流域各县域生态系统服务价值的基础上,采用Pearson相关系数法测度各县域的权衡与协同关系,并构建地理加权逻辑回归(GWLR)模型考察权衡协同与各影响因素之间的时空异质性.结果表明:(1)2001~2021年黄河流域生态系统服务价值先上升再下降最后上升,呈现“下游低、中上游高”的空间分布格局.(2)通过对生态系统服务进行权衡与协同分析,发现研究期内黄河流域各生态系统服务之间的权衡关系存在于食物生产与调节服务和支持服务之间,协同关系存在于调节服务和支持服务内部及其二者之间.(3)通过对潜在因子进行初次筛选和二次筛选,得到建设用地占比变化、年均归一化植被指数(NDVI)变化、年均降水量变化、年均温度变化、人口密度变化和GDP变化6个自变量对6组生态系统服务之间的关系影响较为显著.(4)与其他因子相比,建设用地占比变化和年均温度变化,对生态系统服务权衡协同的时空非平稳响应更强烈.研究结果有利于优化黄河流域生态系统服务效益,为制定精细化的管理措施和政策提供支持.

关键词：生态系统服务价值权衡与协同时空非平稳响应 GWLR模型黄河流域

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中国省际旅游交通碳排放空间关联网络及影响因素

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环境科学 2025年第1期46卷 53-65页

作者：雷婷王奕淇王超长安大学经济与管理学院西安710064 山东大学蓝绿发展研究院威海264209

厘清旅游交通碳排放空间关联网络结构及其影响因素对中国旅游交通行业统筹规划碳减排治理工作,实现旅游交通产业可持续发展至关重要.基于2001~2021年省际面板数据,测算中国旅游交通碳排放量,利用修正后的空间引力模型构建中国省际旅游... 详细信息

厘清旅游交通碳排放空间关联网络结构及其影响因素对中国旅游交通行业统筹规划碳减排治理工作,实现旅游交通产业可持续发展至关重要.基于2001~2021年省际面板数据,测算中国旅游交通碳排放量,利用修正后的空间引力模型构建中国省际旅游交通碳排放空间关联网络,结合社会网络分析法和QAP模型对空间网络结构特征及其影响因素进行分析.结果表明:①中国旅游交通碳排放总量逐年缓慢增长,呈“东南高、西北低”的分布格局,地区差异明显.②中国旅游交通碳排放网络已形成“东密西疏”的多线程、复杂化的关联形态.空间网络中的“马太效应”较明显,北京、上海和广东等东部省份居于核心主导地位;新疆、青海、黑龙江和辽宁等西北和东北省份居于边缘位置.③中国旅游交通碳排放块模型划分结构明显,各板块关联关系较多且均接收来自其他板块的碳排放溢出.④交通能源强度和交通运输结构对空间关联网络具有显著的正向影响;空间地理距离、居民消费水平和旅游经济效益则对空间网络产生显著的负向影响.

关键词：旅游交通碳排放空间网络结构社会网络分析影响因素

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yi qi Jie Du Formula and Salinomycin Combination Treatment Mediates Nasopharyngeal Carcinoma Stem Cell Proliferation,Migration and Apoptosis via CD44/Ras Signaling Pathway

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Digital Chinese Medicine 2020年第4期3卷 297-308页

作者： HE Lan ZHOU Fang-Liang ZOU Pan WANG Xian-Wen JIANG yi-Lan HE ying-Chun LIAO Duan-Fang CAO De-Liang Graduate School Hunan University of Chinese MedicineChangshaHunan 410208China Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases with Traditional Chinese Medicine ChangshaHunan 410208China Diseases Prevention and Treatment with Traditional Chinese Medicine and Visual Function Protection Engineering and Technological Research Center ChangshaHunan 410208China Department of Medical Microbiology Immunology&Cell BiologySimmons Cancer InstituteSouthern Illinois University School of MedicineSpringfieldIL 62794USA

Objective To assess the effects of yi qi Jie Du Formula(YQJDF)combined with salinomycin(SAL)on nasopharyngeal carcinoma stem cells(NPC-SCs)and investigate the underlying molecular *** Cell counting methods,the CCK-8 assay,transwell migration assay and JC-1 staining,were used to observe the effects of the combination on the proliferation,migration and apoptosis of NPC stem cells,*** blot was used to detect the levels of protein in *** YQJDF combined with SAL had a synergistic effect on the inhibition of proliferation and migration and induction of NPCSC ***,YQJDF combined with SAL synergistically upregulated the levels of apoptotic proteins,including cleaved Caspase-3,cleaved Caspase-7 and cleaved ***,YQJDF combined with SAL synergistically decreased the levels of CD44,p-c-Src,Ras,p-PKCδ,p-MEK,p-c-Raf,p-ERK1/2 and p-AKT *** The combination of YQJDF and SAL has a synergistic effect on the inhibition of NPC-SC proliferation and migration and induction of apoptosis,which may be closely related to the downregulation of the CD44/Ras signaling pathway.

关键词： yi qi Jie Du Formula(YQJDF) Salinomycin Nasopharyngeal carcinoma stem cells (NPC-SCs) Proliferation Apoptosis CD44/Ras signaling pathway

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yi-qi-Zeng-Min-Tang,a Chinese medicine,ameliorates insulin resistance in type 2 diabetic rats

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World Journal of Gastroenterology 2011年第8期17卷 987-995页

作者： Zeng Zhang Hong-Li Xue yi Liu Wen-Jian Wang Institute of Chinese Integrative Medicine Huashan Hospital Fudan University Shanghai 200040 China Institute of Chinese Integrative Medicine Huashan Hospital Fudan University Shanghai 200040 China Institute of Integrated Clinical Medicine Shanghai Academy of Traditional Chinese Medicine YueyangIntegrative Medicine Hospital Shanghai Traditional ChineseMedicine University Shanghai 200437 China

AIM:To investigate the effects of the Chinese herbal decoction,yi-qi-Zeng-Min-Tang(YQZMT),on insulin resistance in type 2 diabetic ***:Sprague-Dawley rats were divided into two dietary regiments by feeding either normal pellet diet(NPD) or high fat diet(HFD).Four weeks later,the HFD-fed rats were injected intraperitoneally with lowdose streptozotocin(STZ).Rats with non-fasting blood glucose level ≥ 16.67 mmol/L were considered type 2 diabetic and further divided into five subgroups:the type 2 diabetes model group,low-dose,medium-doseand high-dose YQZMT groups,and rosiglitazone ***-matched NPD-fed rats served as *** or rosiglitazone were administered for 8 *** glucose and insulin tolerance tests were performed before and after the treatment to measure the glucose tolerance and insulin *** levels of biochemical parameters,adipocytokines,such as tumor necrosis factor-α(TNF-α),interleukin-6(IL-6),as well as free fatty acids(FFAs),were also ***:There was significant elevation of insulin resistance and serum levels of fasting glucose(12.82 ± 1.08 mmol/L vs 3.60 ± 0.31 mmol/L,P < 0.01),insulin(7197.36 ± 253.89 pg/mL vs 4820.49 ± 326.89 pg/mL,P < 0.01),total cholesterol(TC)(8.40 ± 0.49 mmol/L vs 2.14 ± 0.06 mmol/L,P < 0.01),triglyceride(2.24 ± 0.12 mmol/L vs 0.78 ± 0.05 mmol/L,P < 0.01),low-density lipoprotein cholesterol(LDL-c)(7.84 ± 0.51 mmol/L vs 0.72 ± 0.04 mmol/L,P < 0.01) and decrease in high-density lipoprotein cholesterol(HDL-c)(0.57 ± 0.03 mmol/L vs 1.27 ± 0.03 mmol/L,P < 0.01) in the low-dose STZ and high-fat diet induced type 2 diabetic group when compared with the control *** of YQZMT induced dose-and timedependent changes in insulin resistance,glucose and lipid profile,and reduced levels of FFA,TNF-α and IL-6 in the type 2 diabetic *** the treatment,compared with the diabetic group,the insulin resistance was ameliorated in the high-dose YQZMT(2.82 g/100 g per day) group

关键词： yi-qi-Zeng-Min-Tang Insulin resistance Type 2 diabetes Lipids Adipocytokines Free fatty acids

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Protective effect of the extract of yi-qi-Fu-Mai preparation on hypoxia-induced heart injury in mice

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Chinese Journal of Natural Medicines 2016年第6期14卷 401-406页

作者： FENG Ya-qian JU Ai-Chun LIU Chun-Hua WANG Ting YU Bo-Yang qi Jin State Key Laboratory of Natural Medicines China Pharmaceutical University Jiangsu Key Laboratory of TCM Evaluation and Translational Research China Pharmaceutical University Department of Technology Development Tian Jin Tasly Pride Pharmaceutical Co. Ltd.

yi-qi-Fu-Mai(YQFM) is extensively used clinically to treat cardiovascular diseases in China. To explore the anti-hypoxia effect of the extract of YQFM preparation(EYQFM), the EYQFM(1.4, 2.8, and 5.5 g·kg-1·d-1) was assessed for its heart-protective effect in a chronic intermittent hypoxia(CIH) animal model(oxygen pressure 7%-8%, 20 min per day) for 28 days of treatment. Betaloc(0.151 6 g·kg^(-1)·d^(-1)) was used as a positive control. The histopathological analyses of heart in CIH mice were conducted. Several cardiac state parameters, such as left ventricular ejection fractions(EF), stroke volume(SV), expression of creatine kinase(CK), lactate dehydrogenase(LDH), superoxide dismutase(SOD), and malondialdehyde(MDA) were measured. The results showed that treatment with EYQFM markedly reversed swelling of the endothelial cells and vacuolization in the heart when compared with the model group. Further study demonstrated that EYQFM significantly improved ventricular myocardial contractility by increasing EF and SV. In addition, EYQFM inhibited the activity of CK, LDH, decreased the level of MDA and improved SOD activity. The results demonstrated that EYQFM significantly improved the tolerability of myocardium to hypoxia and ameliorated the cardiac damage in the CIH model.

关键词： Extract of YQFM preparation Chronic intermittent hypoxia Cardiac damage

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热黏弹性介质中波的传播特性研究

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岩土力学 2025年第1期46卷 303-314页

作者：马强杨奕琪周凤玺邵帅青海大学土木水利学院青海西宁810016 西安理工大学岩土工程研究所陕西西安710048 兰州理工大学土木工程学院甘肃兰州730050

基于弹性介质的波动理论,考虑了土体的黏性和热效应的影响,利用Kelvin-Voigt黏弹性模型、黏弹性介质的运动方程以及广义热弹性理论,建立了热黏弹性介质的波动方程。通过引入固相介质的位移势函数,进一步推导得到了热黏弹性介质中体波的... 详细信息

基于弹性介质的波动理论,考虑了土体的黏性和热效应的影响,利用Kelvin-Voigt黏弹性模型、黏弹性介质的运动方程以及广义热弹性理论,建立了热黏弹性介质的波动方程。通过引入固相介质的位移势函数,进一步推导得到了热黏弹性介质中体波的弥散特征方程。采用数值计算分析了热膨胀系数、介质温度和松弛时间等热物性参数对热弹性波的波速和衰减系数的影响规律。研究结果表明:弹性理论、热弹性理论和热黏弹性理论3种理论模型下所得到的热弹性体波的波速和衰减系数有着明显差异;松弛时间每增加0.5×10^(-3)s,P波的波速和衰减系数最大增加了5.18%和34.67%,S波的波速和衰减系数最大增加了9.27%和34.60%,而T波的波速和衰减系数最大减小了2.18%和2.24%;随着频率的增大,各类热弹性波的波速和衰减系数均逐渐增大;介质温度的增大会造成P波和T波的波速增大以及P波衰减系数的增大,温度每增加20 K,P波的波速和衰减系数分别增加约3%和2%,但对S波的传播特性以及T波的衰减系数不产生影响;热膨胀系数的增大将引起P波的波速增大和T波的波速减小,同时也会对P波和T波的衰减系数产生显著影响。此外,热通量和温度梯度相位延迟时间仅对T波的波速和衰减系数有较大影响。

关键词：黏弹性介质热效应体波波速衰减系数

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限制性三体问题轨道能量与雅可比常数概念辨析

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力学与实践 2025年第01期47卷 216-220页

作者：齐毅祁瑞北京理工大学宇航学院

在轨道力学教学中，学生容易将圆型限制性三体问题的航天器轨道能量与雅可比常数混淆。针对该问题，本文推导了轨道能量变化表达式，揭示了轨道能量变化机理，给出了一种新的推导雅可比常数表达式的简便方法，明晰了轨道能量和雅可比常... 详细信息

在轨道力学教学中，学生容易将圆型限制性三体问题的航天器轨道能量与雅可比常数混淆。针对该问题，本文推导了轨道能量变化表达式，揭示了轨道能量变化机理，给出了一种新的推导雅可比常数表达式的简便方法，明晰了轨道能量和雅可比常数概念的区别。相关教学研究将帮助学生厘清三体轨道动力学学习难点。

关键词：限制性三体问题轨道能量雅可比常数

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Local boundary dilatation of quasiconformal maps

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Science China Mathematics 2005年第6期48卷 798-807页

作者： qi yi Department of Applied Mathematics LIMB of the Ministry of Education Beijing University of Aeronautics and Astronautics Beijing 100083 China

By studying the existence problem of locally extremal Beltrami differential posed by F. Gardiner and N. Lakic, we introduce a new definition of the local boundary dilatations of points in Teichmuller spaces of simply connected plane domains, which is the same as the usual ones in the case of Jordan domains. Then we show that the answer to the problem of F. Gardiner and N. Lakic is affirmative according to this new definition. Comparing with the usual definitions, the problem of F. Gardiner and N. Lakic is partly answered and the results of G. Cui and Y. qi is generalized.

关键词： quasiconformal map Teichmiiiler space.

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