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含二茂铁季铵盐有序分子膜的组装与性能研究

安徽大学学报（自然科学版） 2005年第5期29卷 61-65页

作者：谢安建唐宇峰黄方志沈玉华裘灵光席昆安徽大学化学化工学院安徽合肥230039

在考察了二茂铁季铵盐的表面活性的基础上,制备了含二茂铁季铵盐/氯仿/苯/二次蒸馏水的反相微乳液及二茂铁季铵盐/十八酸混合单分子膜,并通过电导率仪和动态激光光散射仪等对所制备的微乳液进行了表征.结果表明,苯和氯仿的体积比为7:3... 详细信息

在考察了二茂铁季铵盐的表面活性的基础上,制备了含二茂铁季铵盐/氯仿/苯/二次蒸馏水的反相微乳液及二茂铁季铵盐/十八酸混合单分子膜,并通过电导率仪和动态激光光散射仪等对所制备的微乳液进行了表征.结果表明,苯和氯仿的体积比为7:3的混合溶液为该微乳液形成的最佳有机溶剂;微乳液形成过程中,二茂铁季铵盐的浓度为0.10～1.00mmol/L,10mL微乳液中增溶水量为6～8μL时为佳.若加助表面活性剂正戊醇,则其最佳体积含量为20%.二茂铁季铵盐很难单独在气/液界面铺展成膜,而其与十八酸的混合体系可形成稳定的单分子膜,且二茂铁季铵盐/十八酸混合体系的成膜性能随十八酸含量的增加而增强.

关键词：二茂铁季铵盐微乳液混合单分子膜表面张力

Synergistic effect of bonding heterogeneity and phonon localization in introducing excellent thermoelectric properties in layered heteroanionic NdZnSbO material

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Journal of Energy Chemistry 2025年第1期100卷 259-272页

作者： Da Wan Shuwei tang Shulin Bai Xiaodong Li Peng Ai Wanrong Guo Tuo Zheng College of Materials Science and Engineering Liaoning Technical University Faculty of Chemistry Northeast Normal University

Layered rare-earth metal oxides, harnessing the dual properties of oxides and two-dimensional layered materials, exhibit remarkable thermal stability and quantum confinement effects. Therefore, this work adopts the first-principles calculation combined with the Boltzmann transport theory to predict the thermoelectric properties of NdZnSbO compound. The coexistence of weak interlayer van der Waals interactions, robust intralayer ionic bonding, and partial covalent bonding leads to remarkable bonding heterogeneity, which engenders pronounced phonon scattering and imposes constraints on thermal transport along the out-of-plane direction. The weakened chemical bonds induced by the antibonding states, together with the rattling-like behavior of the Zn atom, culminate in the profound anharmonicity in the layered NdZnSbO compound. The weakening bond and heavy element contribute to the softness of phonon modes, which significantly diminishes the phonon group velocity. The redistribution-dominated four-phonon scattering process spans a large optical gap, which effectively reduces the lattice thermal conductivity. The NdZnSbO compound exhibits direct semiconductor characteristic with a bandgap of 0.73 e V by adopting the Heyd-Scuseria-Ernzerhof(HSE06) functional in combination with spin–orbit coupling(SOC) effect. The multi-valley feature of NdZnSbO compound augur favorably for band degeneracy, thus amplifying the power factor. Consequently, an optimal figure-of-merit(ZT) of 3.40 at 900 K is achieved for the n-type NdZnSbO compound. The present study delves deeply insights into the origins for the low thermal conductivity of NdZnSbO compound and proposes an optimization scheme to enhance overall thermoelectric performance.

关键词： Bond strength (chemical)

Unraveling the mechanism of action of Shangxia Liangji formula for treating insomnia:a metabolomics and network pharmacology approach

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Traditional Medicine Research 2025年第2期10卷 16-29页

作者： Xia-Jie Quan Hao Liang Yong-Hong tang Li Jiang Xiong-Ying Ji feng-Ying Zhang Ping Zhang Bo Ouyang Department of Information The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China Department of Neurology The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China Department of Gastroscopy The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China Department of Traditional Chinese Medicine The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China

Background:Insomnia is a prevalent clinical condition and Shangxia Liangji formula(SXLJF)is a well-established method of ***,the specific mechanism of action of SXLJF remains ***:The mouse model of insomnia was established by intraperitoneal injection of ***-two mice were randomly divided into a negative control group,model group,SXLJF group(18.72 g/kg/day),and positive control group(diazepam,2 mg/kg)and treated with the corresponding drugs for 7 consecutive *** open field test and pentobarbital-induced sleeping test were ***-MS-based untargeted metabolomics and network pharmacology were applied to explore the potential targets of SXLJF for treating ***,key targets were validated using ***:Behavioral tests demonstrated that SXLJF reduced the total distance,average velocity,central distance,and sleep latency,and prolonged sleep *** and network pharmacology revealed potential targets,signaling pathways,metabolic pathways,and metabolites associated with the anti-insomnia effects of ***,tyrosine hydroxylase(TH)and tyrosine metabolism emerged as crucial metabolic pathways and targets,***-qPCR results supported the role of TH in the mechanism of SXLJF in treating ***:In conclusion,TH and tyrosine metabolism may represent significant targets and pathways for SXLJF in treating insomnia.

关键词： Shangxia Liangji formula insomnia metabolomics network pharmacology tyrosine hydroxylase tyrosine metabolism

A novel flexible nerve guidance conduit promotes nerve regeneration while providing excellent mechanical properties

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Neural Regeneration Research 2025年第7期20卷 2084-2094页

作者： Tong Li Quhan Cheng Jingai Zhang Boxin Liu yu Shi Haoxue Wang Lijie Huang Su Zhang Ruixin Zhang Song Wang Guangxu Lu Peifu tang Zhongyang Liu Kai Wang Department of Orthopedics the Fourth Medical Center of Chinese PLA General HospitalBeijingChina Department of Training and Sports Medicine Characteristic Medical Center of Chinese People’s Armed Police ForceTianjinChina Medical School of Chinese PLA BeijingChina Key Laboratory of Bioactive Materials for the Ministry of Education College of Life SciencesNankai UniversityTianjinChina Department of Orthopedics Tianjin HospitalTianjinChina Department of Rehabilitation Medicine Er Quan Hospital of PAPWuxiJiangsu ProvinceChina

Autografting is the gold standard for surgical repair of nerve defects>5 mm in length;however,autografting is associated with potential complications at the nerve donor *** an alternative,nerve guidance conduits may be *** ideal conduit should be flexible,resistant to kinks and lumen collapse,and provide physical cues to guide nerve *** designed a novel flexible conduit using electrospinning technology to create fibers on the innermost surface of the nerve guidance conduit and employed melt spinning to align ***,we prepared disordered electrospun fibers outside the aligned fibers and helical melt-spun fibers on the outer wall of the electrospun fiber *** presence of aligned fibers on the inner surface can promote the extension of nerve cells along the *** helical melt-spun fibers on the outer surface can enhance resistance to kinking and compression and provide *** novel conduit promoted nerve regeneration and functional recovery in a rat sciatic nerve defect model,suggesting that it has potential for clinical use in human nerve injuries.

关键词： aligned fibers anti-kinking helical fibers nerve guidance conduit nerve regeneration peripheral nerve injury topological guidance

基于稀疏表示和字典学习的全色与多光谱影像融合

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测绘与空间地理信息 2017年第3期40卷 28-32页

作者：聂品汤玉奇冯兰平李明兰翠玉中南大学地球科学与信息物理学院湖南长沙410083 有色金属成矿预测与地质环境监测教育部重点实验室(中南大学) 湖南长沙410083

Pansharpening方法通过融合多光谱影像的光谱信息和全色影像的空间细节信息来得到高分辨多光谱影像。然而传统的Pansharpening方法易导致产生光谱扭曲和空间信息丢失现象。受到影像稀疏表示超分重建理论启发,本文提出了一种新的基于稀... 详细信息

Pansharpening方法通过融合多光谱影像的光谱信息和全色影像的空间细节信息来得到高分辨多光谱影像。然而传统的Pansharpening方法易导致产生光谱扭曲和空间信息丢失现象。受到影像稀疏表示超分重建理论启发,本文提出了一种新的基于稀疏表示和字典学习的Pansharpening方法。该方法以影像的高频特征作为训练样本,通过字典学习的方法来获取高低分辨率影像字典,使用正交匹配追踪算法求解出影像的稀疏表示系数,最终通过高分辨影像字典与稀疏系数相乘得到融合影像。实验结果表明:本文提出的方法能很好地保持遥感影像的光谱信息和空间细节信息。

关键词： Pansharpening 字典学习稀疏表示遥感影像

昭通龙树河流域废弃稻田湿地植物多样性及群落特征研究

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西南农业学报 2021年第5期34卷 1088-1095页

作者：唐玉凤李学艳程金朋鲁绍凤蔡荣靖张华全勇龚声信昭通市农业环境保护监测站云南昭通657000 昭通学院云南昭通657000 昭通市农业科学院云南昭通657000 昭通市苹果产业发展中心云南昭通657000

【目的】为探究昭通龙树河流域废弃稻田湿地水生植物物种多样性及群落特征。【方法】选取水磨、龙树、新街3个乡(镇)有代表性的废弃稻田湿地为研究对象,采用多度、频度、重要值IV等作为植物群落多样性调查指标,通过野外采样调查对稻田... 详细信息

【目的】为探究昭通龙树河流域废弃稻田湿地水生植物物种多样性及群落特征。【方法】选取水磨、龙树、新街3个乡(镇)有代表性的废弃稻田湿地为研究对象,采用多度、频度、重要值IV等作为植物群落多样性调查指标,通过野外采样调查对稻田湿地内的水生植物种类及种群现状进行统计分析。【结果】龙树河流域废弃稻田湿地内现有植物49种,隶属于18个科,37个属,其中优势科有蓼科(Polygonaceae)、禾本科(Gramineae)、菊科(Compositae)和莎草科(Cyperaceae),分散分布于水磨、龙树、新街3个乡(镇)的湿地内。植物种类在空间分布上具有较大的区域重叠性,在群落调查中,同时出现在2个湿地内的植物达到18种,占31种植物的58.6%。【结论】从各样方群落的特征来看,禾本科(Gramineae)和莎草科(Cyperaceae)是湿地内的优势种,各群落的植物数量沿龙树河的流向,从上游的水磨向下游的新街呈下降的趋势。综合来看,废弃稻田湿地内植物种类相对较为丰富,但由于其植物均以1年生或多年生草本挺水植物为主,种群结构单一,稳定性较差。

关键词：昭通龙树河废弃稻田湿地植物多样性特征研究

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分析化学精品课程建设的探索与实践

南阳师范学院学报 2010年第3期9卷 110-112页

作者：包晓玉张廉奉孟召辉张书申熊燕汤玉峰南阳师范学院化学与制药工程学院河南南阳473061

结合分析化学精品课程建设的实践,从师资队伍建设、教学内容和教学方法的改革、教学条件建设和教学管理等方面阐述了分析化学精品课程建设的体会.

关键词：分析化学精品课程实践

关节镜下前交叉韧带重建移植物固定方式选择的研究进展

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中国骨伤 2017年第4期30卷 387-390页

作者：常晗唐翔宇曲峰申学振王江涛李春宝齐玮刘玉杰解放军总医院骨科北京100853 白求恩国际和平医院骨二科河北石家庄050000

前交叉韧带损伤是最常见的膝关节运动损伤之一,临床上治疗多采用关节镜下微创前交叉韧带重建术。目前临床上存在多种固定方式,如界面螺钉固定、皮质悬吊固定、横穿钉固定等,均能取得较好的固定效果,并各有其优缺点。然而重建移植物的愈... 详细信息

前交叉韧带损伤是最常见的膝关节运动损伤之一,临床上治疗多采用关节镜下微创前交叉韧带重建术。目前临床上存在多种固定方式,如界面螺钉固定、皮质悬吊固定、横穿钉固定等,均能取得较好的固定效果,并各有其优缺点。然而重建移植物的愈合是一个复杂的长期过程,可受多种因素的影响,愈合各个阶段其力学性能也存在较大的变化,为术后康复增添了变数。

关键词：前交叉韧带手术治疗综述文献

Deciphering fungal metabolon coupling tandem inverse-electrondemand Diels-Alder reaction and semipinacol rearrangement for the biosynthesis of spiro polycyclic alkaloids

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Science China Chemistry 2025年第01期 288-296页

作者： Shuai Liu Wen-Qiang Xu Ying-Tong Di Man-Cheng tang Ding-Kang Chen Ming-Ming Cao Yao-Wen Chang Hong-yu tang Chun-Mao yuan Jun-Bo Yang Zhi-Li Zuo Han Guo Zi-Fei Xu Ying Zeng yun-Dong Wu Xiao-Jiang Hao Key Laboratory of Phytochemistry and Natural Medicines (Chinese Academy of Sciences) Kunming Institute of Botany Chinese Academy of Sciences University of Chinese Academy of Sciences Lab of Computational Chemistry and Drug Design State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Shenzhen Bay Laboratory State Key Laboratory of Microbial Metabolism School of Life Sciences & Biotechnology Shanghai Jiao Tong University State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical University Molecular Biology Experimental Center Germplasm Bank of Wild Species in Southwest China Kunming Institute of Botany Chinese Academy of Sciences yunnan Key Laboratory for Wild Plant Resources Kunming Institute of Botany Chinese Academy of Sciences Research Unit of Chemical Biology of Natural Anti-Virus Products Chinese Academy of Medical Sciences

In the intricate process of natural product biosynthesis, a metabolon can enhance metabolic flux by associating sequential enzymes. A fungal metabolon, comprising of flavin-dependent monooxygenase Spe F and P450 monooxygenase Spe G, is identified in the biosynthesis of spiro polycyclic alkaloids(+)-notoamide B and its diastereomer(+)-versicolamide B. Using notoamide E as a substance, Spe F/Spe G metabolon can control the stereoselectivity of its 2,3-epoxidation, followed by hydrogen atom ion at C-17 to generate reactive epoxide tau-m A with dienyl iminium unit. Subsequently,(+)-notoamide B and(+)-versicolamide B are produced via tandem nonenzymatic inverse-electron-demand Diels-Alder reaction and semipinacol rearrangement. This provides the first example of metabolon in the biosynthesis of spiro-prenylated indole alkaloids.

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