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Three new sesquiterpenes from Euonymus schensianus Maxim

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Chinese Chemical Letters 2009年第8期20卷 952-954页

作者： Xiao Ke Zheng Jin hui Guo wei Sheng feng Hong wei Li Henan University of Traditional Chinese Medicine Zhengzhou 450008 China

Three new sesquiterpenes, namely schensianol A （1）, schensianolside A （2） and schensianolside B （3） were isolated from the stems and leaves of Euonymus schensianus Maxim. Their structures were established by chemical methods and spectroscopic techniques including 2D NMR. ？ 2009 wei Sheng feng. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： Euonymus schensianus Maxim Sesquiterpenes Schensianol A Schensianolside A Schensianolside B

Adenotonsillectomy outcomes regarding bone age and osteocalcin in treatment of obstructive sleep apnea syndrome in children

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World Journal of Pediatrics 2017年第2期13卷 158-164页

作者： Qing-Biao Zhang Yin-feng Li Ming-Xiu Li Ling-Yu Kong Liang-Fu Jiang hui-wei feng Xian-Liang Fan Department of Pediatric Internal Medicine Linyi People's HospitalLinyiChina Department of Pediatric Surgery Linyi People's HospitalLinyiChina Department of Breast Surgery Linyi Cancer HospitalLinyiChina

Background:To investigate the effect of adenotonsillec tomy (AT) on bone development,quality of life and polysomnography evaluation in children with obstructive sleep apnea syndrome (OSA).Methods:Preoperative and postoperative (6 months) physical examination,PSG,bone age (BA) and osteocalcin (OC) evaluation were performed on the selected OSA children (n=92) and the healthy children (n=87).The OSA children were also scored based on the OSA 18-item questionnaire.A two-year follow-up was conducted to evaluate BA and OC ***:After AT,81 (88.04%) OSA children recovered completely,eight (8.70%) achieved remarkable improvements,and three (3.26%) achieved moderate *** the OSA children,postoperative OSA 18-item score and the scores of the five domains were significantly higher than preoperative *** with the preoperative,body mass index (BMI),weight for age Z-sores,height for age Z-sores,weight for height Z-sores and BMI Z-score in the OSA group 6 months after the operation were significantly increased,but no significant difference was detected between the OSA and the control *** changes of BA and chronological age in the OSA group were significantly different from those in the control *** years after AT,BA between the two groups was no longer significantly *** serum OC in the OSA group was lower than that in the control group,but increased to normal levels 6 months after *** analysis showed serum OC levels were negatively correlated with apnea hyponea index,obstructive apnea index,arousal index,and lowest oxygen ***:After AT,bone growth and development in children with OSA recovered gradually,and the serum OC levels decreased to the normal ***,preventive measures and positive treatments should be applied to minimize the negative effects of OSA in children.

关键词： obstructive sleep apnea syndrome OSA-18 score osteocalcin polysomnography

Graphene-Oxide-Based Q-Switched Fiber Laser with Stable Five-Wavelength Operation

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Chinese Physics Letters 2012年第11期29卷 81-84页

作者： ZHAO Jun-Qing WANG Yong-Gang YAN Pei-Guang RUAN Shuang-Chen CHENG Jian-Qun DU Ge-Guo YU Yong-Qin ZHANG Ge-Lin wei hui-feng LUO Jie Yuen H.Tsang Shenzhen Key Laboratory of Laser Engineering College of Electronic Science and TechnologyShenzhen UniversityShenzhen 518060 Department of Applied Physics Hong Kong Polytechnic UniversityHong KongChina State Key Laboratory of Optical Fiber and Cable Manufacture Technology Yangtze Optical Fiber and Cable Company Ltd.R&D CenterWuhan 430073

We demonstrate an erbium-doped ring-cavity fiber laser Q-switched by a graphene oxide-based saturable absorber(GOSA).The GOSA was fabricated by vertically evaporating GO-polyvinylalcohol(GO/PVA)composite dispersion,and has a good performance under room *** a specially fabricated fiber Bragg grating(FBG),stable five-wavelength lasing is realized and stabilized at different pump powers under any *** the pump power increases from 78.4 mW to 379.3 mW,the output power ranging from 1.9 mW to 16.6 mW could be obtained,with pulse duration from 6.8μs to 2.72μs,single pulse energy from 123.73 nJ to 229.74 nJ,and pulse repetition rate from 15.36 kHz to 72.25 *** the best of our knowledge,it is the first simultaneous realization of five-wavelength operation and pulse output in a GO Q-switched all fiber laser system.

关键词： pump fiber switched

Interaction of major facilitator superfamily domain containing 2A with the blood-brain barrier

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Neural Regeneration Research 2025年第8期20卷 2133-2152页

作者： Yilun Ma Taiwei Dong Fei Luan Juanjuan Yang feng Miao Peifeng wei College of Pharmacy and First Clinical Medical College Shaanxi University of Chinese MedicineXianyangShaanxi ProvinceChina National Drug Clinical Trial Agency The Second Affiliated Hospital of Shaanxi University of Chinese Medicine/Xixian New District Central HospitalXi′anShaanxi ProvinceChina

The functional and structural integrity of the blood-brain barrier is crucial in maintaining homeostasis in the brain microenvironment;however,the molecular mechanisms underlying the formation and function of the blood-brain barrier remain poorly *** major facilitator superfamily domain containing 2A has been identified as a key regulator of blood-brain barrier *** plays a critical role in promoting and maintaining the formation and functional stability of the blood-brain barrier,in addition to the transport of lipids,such as docosahexaenoic acid,across the blood-brain ***,an increasing number of studies have suggested that major facilitator superfamily domain containing 2A is involved in the molecular mechanisms of blood-brain barrier dysfunction in a variety of neurological diseases;however,little is known regarding the mechanisms by which major facilitator superfamily domain containing 2A affects the blood-brain *** paper provides a comprehensive and systematic review of the close relationship between major facilitator superfamily domain containing 2A proteins and the blood-brain barrier,including their basic structures and functions,cross-linking between major facilitator superfamily domain containing 2A and the blood-brain barrier,and the in-depth studies on lipid transport and the regulation of blood-brain barrier *** comprehensive systematic review contributes to an in-depth understanding of the important role of major facilitator superfamily domain containing 2A proteins in maintaining the structure and function of the blood-brain barrier and the research progress to *** will not only help to elucidate the pathogenesis of neurological diseases,improve the accuracy of laboratory diagnosis,and optimize clinical treatment strategies,but it may also play an important role in prognostic *** addition,the effects of major facilitator superfamily domain containing 2A on blood-brain barrier lea

关键词： blood-brain barrier(BBB) caveolin-1 central nervous system docosahexaenoic acid endothelial cells lysophosphatidylcholine major facilitator superfamily domain containing 2A(MFSD2A) transcytosis

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光子晶体光纤超连续谱光源

深圳大学学报（理工版） 2011年第4期28卷 295-301页

作者：阮双琛闫培光郭春雨韦会峰深圳大学电子科学与技术学院深圳市激光工程重点实验室深圳518060 长飞光纤光缆有限公司研发中心武汉430073

介绍该课题组近两年在光子晶体光纤超连续谱方面的主要研究成果,包括基于连续波泵浦研制全光纤化超连续谱源,利用级联一段高非线性正常色散光纤,通过光纤的受激拉曼散射效应实现超连续谱的平坦化;基于皮秒锁模光纤激光器实现全光纤化5 ... 详细信息

介绍该课题组近两年在光子晶体光纤超连续谱方面的主要研究成果,包括基于连续波泵浦研制全光纤化超连续谱源,利用级联一段高非线性正常色散光纤,通过光纤的受激拉曼散射效应实现超连续谱的平坦化;基于皮秒锁模光纤激光器实现全光纤化5 W输出超连续谱源;拉制一段145 m的锥形光子晶体光纤,利用自制的纳秒光纤激光器与锥形光子晶体光纤熔接,制备输出功率2.2 W的宽带超连续谱源;利用自制的网状光子晶体光纤和全固态光子带隙光纤,分别研究亚微米薄壁上偏振相关的超连续谱产生,以及基于四波混频效应产生的超连续谱.

关键词：光电子与激光技术光纤激光器光子晶体光纤超连续谱锥形光纤色散

Properties of PAn/PVA Conducting Composite Film by Electrochemical Polymerization

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Semiconductor Photonics and Technology 1999年第4期5卷 216-220页

作者： ZHENG Jian-bang,WANG hui,feng wei,WU Hong-cai (School of Electron & Information Engineering, Xi’an Jiaotong University, Xi’an 710049,CHN)

The polyaniline (PAn)/poly(vinyl alcohol) (PVA) conductive composite film is synthesized with perchloric acid (HClO 4) as the dopant and oxidant in reaction system by electrochemical polymerization. The result shows that this composite film has very high conductive properties, the maximum value of conductivity reaches 0.173 S/cm at the concentration 0.75 mol. The influences of HClO 4 on the conductivity of the composite film are *** addition,the electrode reaction progress is discussed with the result that obtained from SEM and FTIR analyzing.

关键词： Conducting Composites Film Electrochemical Polymerization Polyaniline Poly(Vinyl Alcohol)

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状态依赖的随机干扰对一类流行病模型的影响

东北师大学报（自然科学版） 2017年第1期49卷 9-14页

作者：赵延辉魏凤英福州大学数学与计算机科学学院福建福州350116

研究了一类状态依赖的随机干扰对流行病模型的影响,讨论了具有饱和发生率的流行病模型的绝灭性及平稳分布.根据伊藤公式及构造的李雅普诺夫函数,证明了解的存在唯一性.主要研究结果说明:在适当的充分条件下疾病会灭绝;该模型存在一个遍... 详细信息

研究了一类状态依赖的随机干扰对流行病模型的影响,讨论了具有饱和发生率的流行病模型的绝灭性及平稳分布.根据伊藤公式及构造的李雅普诺夫函数,证明了解的存在唯一性.主要研究结果说明:在适当的充分条件下疾病会灭绝;该模型存在一个遍历的平稳分布;利用傅里叶变换,得到了解在地方病平衡点渐近服从三维正态分布.数值模拟验证了所得结论的有效性.

关键词：随机扰动流行病模型饱和发生率平稳分布正态分布

Microplastic and nanoplastic exposure and risk of diabetes mellitus

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World Journal of Clinical Cases 2025年第3期13卷 24-29页

作者： hui-Yi Hsiao Chung-Yi Nien Ruei-feng Shiu wei-Chun Chin Tzung-Hai Yen Department of Biomedical Sciences College of MedicineChang Gung UniversityTaoyuan 33302TaiwanChina Center for Tissue Engineering Chang Gung Memorial HospitalLinkouTaoyuan 33305TaiwanChina Department of Life Sciences National Central UniversityZhongli 320317TaoyuanTaiwanChina Center of Excellence for The Oceans Taiwan Ocean UniversityKeelung 20224TaiwanChina Institute of Marine Environment and Ecology Taiwan Ocean UniversityKeelung 20224TaiwanChina Department of Chemical and Materials Engineering University of California MercedMercedCA 95343United States Department of Nephrology Clinical Poison CenterChang Gung Memorial HospitalLinkou 33305TaoyuanTaiwanChina School of Traditional Chinese Medicine College of MedicineChang Gung UniversityTaoyuan 33302TaiwanChina

The issue of plastic pollutants has become a growing *** microplastics(MPs)(particle size<5 mm)and nanoplastics(NPs)(particle size<1μm)can cause DNA damage,cytotoxicity,and oxidative stress in various *** primary known impacts of microplastic/nanoplastic are observed in the liver and respiratory system,leading to hepatotoxicity and chronic obstructive pulmonary *** research on the effects of MPs and NPs on diabetes is still in its early stages,there are potential *** editorial highlights the risk to diabetics from co-exposure to contaminants and MPs/NPs,supported by evidence from animal studies and the various chemical compositions of MPs/NPs.

关键词： Microplastics Nanoplastics Plastic pollution,Diabetes mellitus Insulin resistance

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七芯光子晶体光纤中百瓦量级超连续谱的产生

物理学报 2014年第4期63卷 1-5页

作者：谌鸿伟韦会峰刘通周旋风李江童维军陈子伦陈胜平侯静陆启生国防科学技术大学光电科学与工程学院长沙410073 光纤光缆制备技术国家重点实验室长飞光纤光缆有限公司研发中心武汉430073 光纤光缆制备技术国家重点实验室长飞光纤光缆有限公司研发中心武汉430073

采用平均功率为141.6 W的皮秒光纤激光泵浦一段国产七芯光子晶体光纤,获得了平均功率为104.2 W、连续光谱覆盖范围从750至1700 nm以上的超连续谱输出.详细研究了超连续光谱随泵浦功率增加的演变过程,并对基于该七芯光子晶体光纤的超连... 详细信息

采用平均功率为141.6 W的皮秒光纤激光泵浦一段国产七芯光子晶体光纤,获得了平均功率为104.2 W、连续光谱覆盖范围从750至1700 nm以上的超连续谱输出.详细研究了超连续光谱随泵浦功率增加的演变过程,并对基于该七芯光子晶体光纤的超连续谱光源的光谱拓展和功率提升潜力进行相关的分析和讨论.该研究结果对高功率超连续谱光源的发展具有一定的参考价值.

关键词：多芯光子晶体光纤非线性光纤光学超连续谱