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Chinese Journal of Polymer Science 2021年第9期39卷 1177-1184页

作者： Wei Lv Chun Wang Xing-Chi Lin xiao-fei mei Wen Wang E Yang Qi-Dan Ling Zheng-Huan Lin College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350007China Fujian Provincial Key Laboratory of Polymer Materials Fujian Normal UniversityFuzhou 350007China

Solid-stated smart polymers responsive to external stimuli have attracted much attention for potential application in the field of photoelectron devices,logic gates,sensor,data storage and ***,it is a bigger challenge for polymers than that for small molecules in solid state to acquire stimuli-responsive properties,because polymers with high molecular weight are not as easy to change the packing structure as small molecules under external ***,a D-A type alternating copolymer PTMF-o containing 3,4-bisthienylmaleimide(A unit)and fluorene(D unit)is designed and *** irradiation of sunlight,PTMF-o film exhibits a photo-response with the color altering from purple to *** is attributed to the structure of copolymer transformed from ring-opening form(PTMF-o)to ring-closure form(PTMF-c),resulting from the oxidative photocyclization of 3,4-bisthienylmaleimide ***,the ability of charge transfer(CT)from fluorene to 3,4-bisthienylmaleimide unit in PTMF-o can be easily weakened by light ***-o film displays a WORM-type resistive storage performance for the strong ***,after exposure,the electrical memory behavior in situ transfers into FLASH type,due to weak CT in ***-o film can also be employed as smart material to construct NAND and NOR logic gates by using light as input *** work provides a simple way to modify the electronic properties of polymers and realize stimuli-response in solid states.

关键词： Dithienylmaleimide Photo-response Electrical memory Logic gate

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试论高职院校实验、实训教学环节

科技成果管理与研究 2009年第4期 14-16页

作者：费晓梅江苏省南通商贸高等职业学校江苏南通226007

为适应市场对人才的需求，高职院校的人才培养正向以实践能力培养教育为核心转化。本文简单介绍了实验、实训基地建设的重要性及思路，并分析了当前高职院校实验、实训教学中存在的问题，笔者并根据自己的工作经验，提出一些改革实训方... 详细信息

为适应市场对人才的需求，高职院校的人才培养正向以实践能力培养教育为核心转化。本文简单介绍了实验、实训基地建设的重要性及思路，并分析了当前高职院校实验、实训教学中存在的问题，笔者并根据自己的工作经验，提出一些改革实训方式；探索提高高职学生实践能力的途径。

关键词：高职院校实验实训基地技能

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竞技武术套路新旧规则比较研究

体育科学 2004年第11期24卷 65-67页

作者：林小美费兰兰浙江大学教育学院体育学系浙江杭州310028

通过对 2 0 0 0— 2 0 0 3年全国武术套路冠军赛评分结果差异的比较研究 ,认为新规则实施两年来 ,竞技武术套路比赛的评分结果较之旧规则具有较大的差异性 ,有利于比赛结果的公正和人才的辈出 ,但新规则实施后 ,在武术套路动作编排上还... 详细信息

通过对 2 0 0 0— 2 0 0 3年全国武术套路冠军赛评分结果差异的比较研究 ,认为新规则实施两年来 ,竞技武术套路比赛的评分结果较之旧规则具有较大的差异性 ,有利于比赛结果的公正和人才的辈出 ,但新规则实施后 ,在武术套路动作编排上还有待进一步改进和完善。

关键词：武术套路规则比较

miRNA-21-5p is an important contributor to the promotion of injured peripheral nerve regeneration using hypoxia-pretreated bone marrow-derived neural crest cells

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Neural Regeneration Research 2025年第1期20卷 277-290页

作者： Meng Cong Jing-Jing Hu Yan Yu xiao-Li Li xiao-Ting Sun Li-Ting Wang Xia Wu Ling-Jie Zhu xiao-Jia Yang Qian-Ru He fei Ding Hai-Yan Shi School of Medicine Nantong UniversityNantongJiangsu ProvinceChina Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education and Coinnovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Physiology Jiangsu Health Vocational CollegeNanjingJiangsu ProvinceChina Department of Pathology Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina

Our previous study found that rat bone marrow–derived neural crest cells(acting as Schwann cell progenitors)have the potential to promote long-distance nerve ***-based therapy can enhance peripheral nerve repair and regeneration through paracrine bioactive factors and intercellular ***,the complex contributions of various types of soluble cytokines and extracellular vesicle cargos to the secretome remain *** investigate the role of the secretome and extracellular vesicles in repairing damaged peripheral nerves,we collected conditioned culture medium from hypoxia-pretreated neural crest cells,and found that it significantly promoted the repair of sensory neurons damaged by oxygen-glucose *** mRNA expression of trophic factors was highly expressed in hypoxia-pretreated neural crest *** performed RNA sequencing and bioinformatics analysis and found that miR-21-5p was enriched in hypoxia-pretreated extracellular vesicles of neural crest ***,to further clarify the role of hypoxia-pretreated neural crest cell extracellular vesicles rich in miR-21-5p in axonal growth and regeneration of sensory neurons,we used a microfluidic axonal dissociation model of sensory neurons in vitro,and found that hypoxia-pretreated neural crest cell extracellular vesicles promoted axonal growth and regeneration of sensory neurons,which was greatly dependent on loaded ***,we constructed a miR-21-5p-loaded neural conduit to repair the sciatic nerve defect in rats and found that the motor and sensory functions of injured rat hind limb,as well as muscle tissue morphology of the hind limbs,were obviously *** findings suggest that hypoxia-pretreated neural crest extracellular vesicles are natural nanoparticles rich in ***-21-5p is one of the main contributors to promoting nerve regeneration by the neural crest cell *** helps to explain the mechanism of action of the secretome and e

关键词： axotomy cell-free therapy conditioned medium extracellular vesicles hypoxic preconditioning microRNA oxygen-glucose deprivation peripheral nerve injury Schwann cell precursors

自体角膜缘干细胞移植联合MMC治疗翼状胬肉疗效观察

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国际眼科杂志 2010年第9期10卷 1819-1820页

作者：余常山郁建平洪流梅小飞徐凯徐常山中国江苏省姜堰市人民医院眼科 225500

目的:观察自体角膜缘干细胞移植联合丝裂霉素治疗翼状胬肉治疗的疗效。方法:翼状胬肉手术258例272眼(初发性胬肉229眼,复发性胬肉43眼)在显微镜下作自体角膜缘干细胞移植手术,术中常规联合应用丝裂霉素。结果:术后所有病例随访12～24mo... 详细信息

目的:观察自体角膜缘干细胞移植联合丝裂霉素治疗翼状胬肉治疗的疗效。方法:翼状胬肉手术258例272眼(初发性胬肉229眼,复发性胬肉43眼)在显微镜下作自体角膜缘干细胞移植手术,术中常规联合应用丝裂霉素。结果:术后所有病例随访12～24mo,14眼初发性胬肉术后复发,3眼复发性胬肉术后复发,复发率6.3%。结论:自体角膜缘干细胞移植联合应用丝裂霉素可有效降低翼状胬肉术后的复发率。

关键词：自体角膜缘干细胞移植丝裂霉素翼状胬肉

Progress and prospects of noncoding RNAs in insects

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Journal of Integrative Agriculture 2019年第4期18卷 729-747页

作者： LI mei-zhen xiao Hua-mei HE Kang LI fei Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects Institute of Insect Sciences College of Agriculture and Biotechnology Zhejiang University College of Life Sciences and Resource Environment Yichun University

With the rapid development of high-throughput sequencing technology and bioinformatics algorithms, great progress has been made in the field of noncoding RNA(ncRNA) in the last decade. RNA molecules have been regarded only as a messenger between DNA and protein for decades, but now they have new roles in the biological process as ncRNAs. A growing number of ncRNAs have been identified in insects from the RNA-Seq data of small RNA libraries or transcriptomes. ncRNAs have varied regulatory functions at the epigenetic, transcriptional, or post-transcriptional levels, and participate in almost all types of biological processes. Here, we review the research progress of four kinds of ncRNAs, including microRNA(miRNA), Piwiinteracting RNA(piRNA), circular RNA(circRNA), and long noncoding RNA(lncRNA) in insects. The discovery, biogenesis mechanisms, and regulatory functions of these ncRNAs are presented here to provide a comprehensive understanding of insect ncRNAs and to promote the application of ncRNAs in insect pest control.

关键词： miRNA piRNA circRNA lncRNA biogenesis prediction regulatory functions

Phase fraction evolution in hot working of a two-phase titanium alloy： experiment and modeling

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Rare Metals 2017年第10期36卷 769-779页

作者： xiao-Guang Fan Huo-Jun Zheng Peng-fei Gao mei Zhan Wen-Jia mei School of Materials Science and Engineering Northwestern Polytechnical University Xi'an 710072 China State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi'an 710072 China

In the present work, the coupled effects of initial structure and processing parameters on microstructure of a two-phase titanium alloy were investigated to predict the microstructural evolution in multiple hot working. It is found that microstructure with different constituent phases can be obtained by regulating the initial structure and hot working conditions. The variation of deformation degree and cooling rate can change the morphology of the con- stituent phases, but do not alter the phase fraction. The phase transformation during heating and holding determi- nes the phase fraction for a certain initial structure. ^--at-~3 transformation occurs during heating and holding. [3 to ct transformation leads to a significant increase in content and size of lamellar ~. The ct to [3 transformation occurs simultaneously in equiaxed at and lamellar ct. The thickness of lamellar ~t increases with temperature, which is caused by the vanishing of fine a lamellae due to phase transformation and coarsening by termination migration. By assuming a quasi-equilibrium phase transformation in heating and holding, a modeling approach is proposed for predicting microstructural evolution. The three stages of phase transformation are modeled separately and combined to predict the variation of phase fraction with temperature. Model predictions agree well with the experimental results.

关键词： Titanium alloy Hot working Microstructure Modeling

Biochemical Properties and Inhibition Kinetics of Phosphatase from Wheat Thylakoid Membranes

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Journal of Integrative Plant Biology 2006年第3期48卷 294-299页

作者： mei-Juan fei Jian-Sheng Chen xiao-Yun Wang College of Life Sciences Shandong Agricultural University Taian 271018 China Shandong Key Laboratory of Crop Biology Shandong Agricultural University Taian 271018 China

A phosphetase that hydrolyses phosphate monoesters has been Isolated from wheat thylakold membranes. Biochemical properties and inhibition kinetics of the phosphatase were Investigated using several Ions, organlc solvents, and Inhlbltors. Wheat （Trltlcum aestivum L. cv. PH82-2-2） thylakold membrane phosphatase activity was activated by Mg^2＋, Ca^2＋, and Fe^2＋ and was inhibited by Mn^2＋ and Cu^2＋. For example, enzyme activity was acUvated 34.81% by 2 mmol/l. Mg^2＋, but was Inhibited 22.3% and 8.5% by 2 and 1 mmol/L Cu^2＋, respectively. Methanol, ethanol and glycol were all able to activate enzyme activity. Enzyme activity was activated 58.5%, 48.2%, and 8.7% by 40% ethanol, methanol and glycol, respectively. From these results, It can be seen that the degree of actlvetlon of the phosphetase was greatest for ethanol and the type of acUvatlon was uncompetltlve. Moreover, the activity of the thylakold membrane phosphetase was Inhibited by molybdate, vanadete, phosphate, and fluoride and the type of Inhibition produced by these elements was uncompetltlve, non-competitive, competltlve and mixed, respectively.

关键词： calcium ions copper enzyme activity enzyme inhibitors enzymes ethanol ferric ions fluoride glycols ions kinetics magnesium manganese methanol molybdates phosphate phosphoric monoester hydrolases solvents thylakoids wh eat

First-order phase transitions in rotating hybrid stars and pulsar glitches

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Research in Astronomy and Astrophysics 2011年第6期11卷 679-686页

作者： fei xiao Chun-mei Shu-Hua Yang Ai-Zhi Zhou xiao-Ping Zheng Department of Physics and Electronics Hubei University of Education Wuhan 430205 China Institute of Astrophysics Huazhong Normal University Wuhan 430079 China

The first order deconfinement phase transitions in rotating hybrid stars are studied and it is found that if the surface tension is sufficiently large, the transition from metastable hadron matter to stable mixed hadr... 详细信息

关键词： dense matter-stars: rotation-pulsars: general

Surface Polarization Effects on Collapse Transition of Polyelectrolyte Brushes

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Chinese Journal of Polymer Science 2024年第9期42卷 1313-1320,I0006页

作者： xiao-fei Xu State Key Laboratory of Chemical Engineering and School of Chemical Engineering East China University of Science and TechnologyShanghai200237China

Polyelectrolyte brushes(PEBs)are commonly used to modify surface that have attracted great research *** dielectric permittivity of the grafted surface is typically significantly different from that of solution,which results in surface polarization(SP)effect with a jump of electric *** is thus important to study how SP alters the PEB’s structure and *** this work,the SP effects on PEB structure was studied using a statistical thermodynamic *** free energy functional to describe SP effect was constructed by using the image-charge ***,the electrostatic potential was solved from a modified Poisson-Boltzmann equation taking the ion solvation effect into *** the absence of SP,the thickness of PEB exhibited a continuous collapse transition when decreasing the solvent *** the presence of SP,the collapse became a jump-like *** energy analysis showed that the long-range Coulombic interaction dominated the transition because of the enhanced counterion condensation in the presence of *** theory provides an effective tool to study SP effect on PEBs,and the results explain the underlying physics in PEB collapse transition.

关键词： Surface polarization Polyelectrolyte brush Image charge Ion solvation Polyelectrolyte collapse transition