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The Influence of Large-Scale Circulation on the Summer Hydrological Cycle in the Haihe River Basin of China

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Acta meteorologica Sinica 2011年第4期25卷 517-526页

作者： OU Tinghai LIU Yanxiang chen Deliang David RAYNER ZHANG Qiang gao Ge XIANG Weiguo School of Geology Beijing Normal University Beijing 100875 China Department of Earth Sciences University of Gothenburg GSteborg 40530 Sweden National Climate Center China Meteorological Administration Beijing 100081 China College of Atmospheric Sciences Chengdu University of Information Science ~ Technology Chengdu 610225 China

In this study, we focus on changes in three important components of the hydrological-cycle in the Haihe River basin （HRB） during 1957-2005： precipitation （Prep）, actual evaportranspiration （ETa）, and pan evaporation （PE）-a measure of potential evaporation. The changes in these components have been evaluated in relation to changes in the East Asian summer monsoon. Summer Prep for the whole basin has decreased significantly during 1957-2005. Recent weakening of the convergence of the integrated water vapor flux, in combination with a change from cyclonic-like large-scale circulation conditions to anti-cyclonic-like conditions, led to the decrease in the summer Prep in the HRB. ETa is positively correlated with Prep on the interannual timescale. On longer timescales, however, ETa is less dependent on Prep or the large-scale circulation. We found negative trends in ETa when the ERA40 reanalysis data were used, but positive trends in ETa when the NCEP/NCAR reanalysis data were used. PE declined during the period 1957-2001. The declining of PE could be explained by a combination of declining solar radiation and declining surface wind. However, the declining solar radiation may itself be related to the weakening winds, due to weaker dispersion of pollution. If so, the downward trend of PE may be mainly caused by weakening winds.

关键词： hydrological cycle runoff Lamb-Jenkinson classification circulation Haihe River basin (HRB)

Temporal and spatial expression of MMP-2,-9,-14 and their inhibitors TIMP-1,-2,-3 in the corpus luteum of the cycling rhesus monkey

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Science China(Life Sciences) 2006年第1期49卷 37-45页

作者： chen Xinlei gao Hongjuan gao Fei WEI Peng HU Zhaoyuan LIU Yixun State Key Laboratory of Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100080China

The corpus luteum(CL)is a transient endocrine organ that secretes progesterone to support early *** implantation is unsuccessful,luteolysis is *** tissue re-modeling occurs during CL formation and *** this study,we have studied the possible in-volvement of MMP-2,-9,-14,and their inhibitors,TIMP-1,-2,-3 in the CL of cycling rhesus monkey at various stages by in situ hybridization,immunohistochemistry and microscopic *** re-sults showed that the MMP-2 mRNA and protein were mainly expressed in the endothelial cells at the early and middle stages of the CL development,while their expressions were observed in the luteal cells at the late stage during luteal ***-9 protein was detected in the CL at the early and middle stages,and obviously increased at the late *** expressions of MMP-14 and TIMP-1 mRNA were high at the early and late stages,and low at the middle ***-2 mRNA was high throughout all the stages,the highest level could be observed at the late *** TIMP-3 produc-tion was detected throughout all the stages,but obviously declined during CL ***-9,-14 and TIMP-1,-2,-3 were mainly localized in the cytoplasm of the steroidogenic *** results suggest that the MMP/TIMP system is involved in regulation of CL development in the primate,and the coordinated expression of MMP-2,-14 and TIMP-1,-3 may have a potential role in the CL forma-tion and the functional maintaining,while the interaction of MMP-2,-9,-14 and TIMP-1,-2,-3 might also play a role in CL regression at the late stage of CL development in the primate.

关键词： MMP TIMP corpus luteum rhesus monkey

Modulating perovskite crystallization and band alignment using coplanar molecules for high-performance indoor photovoltaics

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Journal of Energy Chemistry 2024年第11期 383-390页

作者： Qu Yang Shuhan Fan Haozhe Zhang Zhenhuang Su Xingyu gao Hui Shen Mingkui Wang Xiu Gong College of Physics & Guizhou Province Key Laboratory for Photoelectrics Technology and Application Guizhou University State Key Laboratory of Public Big Data Guizhou University Shanghai Synchrotron Radiation Facility (SSRF) Shanghai Advanced Research Institute Chinese Academy of Sciences Wuhan National Laboratory for Optoelectronics School of Optical and Electronic Information Huazhong University of Science and Technology

The proper bandgap and exceptional photostability enable CsPbI3as a potential candidate for indoor photovoltaics（IPVs）,but indoor power conversion efficiency（PCE） is impeded by serious nonradiative recombination stemming from challenges in incomplete DMAPbI3conversion and lattice structure ***,the coplanar symmetric structu re of hexyl sulfide（HS） is employed to functionalize the CsPbI3layer for fabricating highly efficient *** hydrogen bond between HS and DMAI promotes the conversion of DMAPbI3to CsPbI3,while the copianar symmetric structure enhances crystalline ***,surface sulfidation during HS-induced growth results in the in situ formation of PbS,spontaneously creating a CsPbI3N-P homojunction to enhance band alignment and carrier *** a result,the CsPbI3&HS devices achieve an impressive indoor PCE of 39.90%(Pin:334.6 μW cm-2,Pout:133.5 μW cm-2) under LED@2968 K,1062 lux,and maintain over 90% initial PCE for 800 h at ～30% air ambient humidity.

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变压强工况下膜式空气弹簧橡胶气囊迟滞力学特性统一模型研究

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机械工程学报 2024年第16期60卷 241-248页

作者：杨树军刘泓江陈俊杰王宏宇高向东刘敬豪燕山大学河北省特种运载装备重点实验室秦皇岛066004 江西理工大学机电工程学院赣州341000 江西理工大学江西省矿冶机电工程技术研究中心赣州341000 江西大隆重型工业有限公司技术中心鹰潭335000

橡胶气囊是影响膜式空气弹簧力学特性的关键部件,导致膜式空气弹簧力学特性具有典型的迟滞非线性、压强参数时变等特性。围绕变压强工况下橡胶气囊迟滞力学特性建模难题,引入压强因子,建立Coulomb摩擦压强摄动模型、分数导数Kelvin-Voig... 详细信息

橡胶气囊是影响膜式空气弹簧力学特性的关键部件,导致膜式空气弹簧力学特性具有典型的迟滞非线性、压强参数时变等特性。围绕变压强工况下橡胶气囊迟滞力学特性建模难题,引入压强因子,建立Coulomb摩擦压强摄动模型、分数导数Kelvin-Voigt压强摄动模型描述橡胶气囊迟滞力学特性行为,构建压强统一方程表征变压强工况下模型参数的演变规律,建立变压强工况下橡胶气囊迟滞力学特性统一模型。以某膜式空气弹簧为试验样件A,基于MTS852.05测试台架开展变压强工况下膜式空气弹簧的静态、动态特性试验,计算与试验结果表明样件A静刚度迟滞回线相对误差小于1.1%,迟滞回线损耗能量相对误差小于1.3%,动刚度最大相对误差小于3.4%,验证变压强工况下橡胶气囊迟滞力学特性统一模型的准确性和普适性。最后,分析压强因子对橡胶气囊迟滞力学特性的影响规律,指出压强因子对模型参数F_(fmax)(p_(z))、K_(e)(p_(z))的正相关影响导致橡胶气囊的动态特性具有类似的压强相关性。研究结果为变压强工况下膜式空气弹簧刚度设计与匹配提供理论依据。

关键词：橡胶气囊膜式空气弹簧迟滞力学特性统一模型变压强工况

高丹草在低浓度铜-镉-菲复合胁迫下的生长及响应特性

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农业环境科学学报 2024年第8期43卷 1753-1759页

作者：苏赛赛段燕青杨小晗高前伟陈宇铭项洁太原工业学院环境与安全工程系太原030008

针对焦化厂等工矿废弃地残留的重金属-多环芳烃污染风险高、低成本绿色环保技术缺乏等问题,通过田间试验,研究低浓度铜-镉-菲复合胁迫下高丹草萌芽率,生物量,铜、镉累积,菲去除及叶绿素含量的变化规律,探索其生长及污染物迁移累积等响... 详细信息

针对焦化厂等工矿废弃地残留的重金属-多环芳烃污染风险高、低成本绿色环保技术缺乏等问题,通过田间试验,研究低浓度铜-镉-菲复合胁迫下高丹草萌芽率,生物量,铜、镉累积,菲去除及叶绿素含量的变化规律,探索其生长及污染物迁移累积等响应特性。结果表明:10 mg·kg^(-1)菲和100 mg·kg^(-1)铜复合胁迫可促进高丹草生长,茎叶和根系生物量分别增加14.7%和8.1%,5 mg·kg^(-1)镉抑制了高丹草生长。铜、镉主要累积在高丹草根部,菲-铜复合胁迫可促进铜的迁移,且提高菲去除率40.6%,菲-镉复合则阻碍了镉的迁移。低浓度铜和菲可刺激叶绿素a合成,而铜、镉复合胁迫造成叶绿素b含量下降。相关性分析证实高丹草生长、污染物迁移及叶绿素合成之间具有较强的相关性。研究表明,高丹草在低浓度铜-镉-菲复合胁迫下可以生长,并在重金属迁移、有机物代谢及叶绿素变化等过程中呈现胁迫响应。

关键词：高丹草菲铜镉叶绿素

初诊双相障碍Ⅱ型抑郁发作患者认知功能改变及与临床特征的关系研究

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医学信息 2024年第11期37卷 74-78页

作者：何琛琛高媛张明霞刘燕霞孙守强国药东风茅箭医院/十堰市精神病医院精神科

目的探讨初诊双相障碍Ⅱ型抑郁发作患者认知功能改变及与临床特征的关系。方法纳入2018年1月-2021年1月我院就诊初诊双相障碍Ⅱ型抑郁发作患者，以及同期招募的我院体检中心完善检查的健康人群各172例。比较两组一般资料、临床特征、... 详细信息

目的探讨初诊双相障碍Ⅱ型抑郁发作患者认知功能改变及与临床特征的关系。方法纳入2018年1月-2021年1月我院就诊初诊双相障碍Ⅱ型抑郁发作患者，以及同期招募的我院体检中心完善检查的健康人群各172例。比较两组一般资料、临床特征、精神分裂症认知功能评估成套测验认知功能评分（MCCB）及认知功能损伤发生率，并进一步评价患者临床症状与认知功能间相关性。结果两组性别、年龄及受教育年限比较，差异无统计学意义（P>0.05）；观察组HAMD24量表总分高于对照组（P0.05）。结论初诊双相障碍Ⅱ型抑郁发作患者认知功能改变与抑郁发作次数密切相关。

关键词：双相情感障碍抑郁发作认知功能临床特征

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投弃式雾能见度剖面仪的设计原理与应用

中国海洋大学学报（自然科学版） 2024年第10期54卷 167-178页

作者：赵进平陈萍刘一林陈显尧门雅彬徐俊臣衣立李涛王晓宇栾亮高琳中国海洋大学海洋与大气学院山东青岛266100 青岛冠潮海洋科技有限责任公司山东青岛266000 齐鲁工业大学(山东省科学院)山东省科学院海洋仪器仪表研究所山东青岛266100 中国海洋大学物理海洋教育部重点实验室山东青岛266100 国家海洋技术中心天津300112

精准观测大气能见度是研究雾的重要基础,我们将雾引起的大气能见度变化简称为雾能见度。现有的大气能见度仪较重,无法由探空气球携带升空;由于观测手段的限制,迄今对雾的垂向结构研究很少,本文提出利用自然光探测雾能见度的方案。为获... 详细信息

精准观测大气能见度是研究雾的重要基础,我们将雾引起的大气能见度变化简称为雾能见度。现有的大气能见度仪较重,无法由探空气球携带升空;由于观测手段的限制,迄今对雾的垂向结构研究很少,本文提出利用自然光探测雾能见度的方案。为获取大气的垂向衰减系数,研制了一种体积小、重量轻、传输距离远的投弃式微型辐照度计,由探空气球携带升空,实现雾能见度的垂向剖面探测,我们将该仪器系统命名为“投弃式雾能见度剖面仪”。投弃式雾能见度剖面仪既能实现对大气辐照度的精确测量,又具有重量轻、造价低的特点,成为探测雾能见度垂向特征的一种新手段。本文还提出精确测量大气辐照度所涉及的两个创新性算法——谱辐照度的反演算法和仪器摆动的校正算法。在此基础上利用获取的太阳辐射在垂向的漫衰减系数,成功反演出雾能见度的垂向分布。实际观测结果表明,雾在垂直方向上有丰富的信息,也有空间上的明显差异,需要深入研究。雾能见度剖面仪可为深入研究雾的垂向结构提供宝贵数据,有重要的应用价值。

关键词：雾能见度剖面探测仪垂向结构辐照度衰减系数多光谱

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Establishment of blood glucose control model in diabetic mice

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International Journal of Ophthalmology(English edition) 2022年第12期15卷 1908-1914页

作者： Cai-Hua Rao Lun Liu Jian gao Zi-Hao Du chen gao Department of Ophthalmology The First Affiliated Hospital of Anhui Medical UniversityHefei 230022Anhui ProvinceChina Department of Clinical Medical The First Clinical Medical College of Anhui Medical UniversityHefei 230032Anhui ProvinceChina College of Life Science Anhui Medical UniversityHefei 230022Anhui ProvinceChina

AIM:To explore the established method of the diabetic mouse blood glucose control model and preliminar y observation of its influence on the retinas of diabetic ***:The db/db BKS-DB(Lepr^(ko/ko))mice were randomly divided into two groups:the poor blood glucose control group(PG group,n=18)and the stable blood glucose control group(SG group,n=12),with BKS-DB(Lepr^(wt/wt))as the normal blood glucose control group(NG group,n=18).According to the blood glucose values for 5 intervals which were monitored during the period of adaption,the PG group was injected with insulin aspart twice daily,fasted for 2h and then returned to *** SG group was injected with insulin aspart twice and insulin glargine once daily and fed with a quantitative *** images were collected after eight *** glycosylated hemoglobin(Hb A1c),mean blood glucose level(MBG),standard deviation of blood glucose(SDBG),coefficient of variation of blood glucose(CVBG),and mean amplitude of glycemic excursion(MAGE)in each group were examined and ***:The Hb A1c,MBG,SDBG,CVBG,and MAGE levels in the PG group were significantly higher than those in the NG and SG groups(all P0.05).Preliminary observation of fundus images in the PG group and SG groups showed scattered retinal bleeding spots,while bleeding was more obvious in the PG ***:The blood glucose control model of type 2 diabetes mellitus mice can be successfully established by subcutaneous injection of insulin aspart insulin glargine and rationed food,which is valuable for studying the mechanism of blood glucose fluctuations in diabetic complications in vivo.

关键词： type 2 diabetes blood glucose control animal models

黄瓜籽多肽的酶法制备及其抗氧化活性和抗菌活性研究

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粮食与油脂 2024年第6期37卷 101-105页

作者：陈壹刘高云徐艺朱立民李杰全艳玲辽宁科技大学化学工程学院辽宁鞍山114051 大连工业大学食品学院辽宁大连116034 营口市食品药品检验检测中心辽宁营口115000

以黄瓜籽蛋白粉为原料,通过酶法制备黄瓜籽多肽。以多肽得率为指标,先筛选出最适蛋白酶,在单因素试验基础上通过响应面法优化酶解工艺,并对黄瓜籽多肽进行抗氧化活性和抗菌活性研究。结果表明:酶解黄瓜籽蛋白的最适蛋白酶为碱性蛋白酶,... 详细信息

以黄瓜籽蛋白粉为原料,通过酶法制备黄瓜籽多肽。以多肽得率为指标,先筛选出最适蛋白酶,在单因素试验基础上通过响应面法优化酶解工艺,并对黄瓜籽多肽进行抗氧化活性和抗菌活性研究。结果表明:酶解黄瓜籽蛋白的最适蛋白酶为碱性蛋白酶,最佳工艺参数为以黄瓜籽蛋白质量为基准,酶用量5%、底物添加量6%、酶解时间4 h、酶解温度45℃、pH 9。在此条件下,多肽得率为22.58%±0.5%;对DPPH自由基的清除率为44.33%±3.5%,对羟基自由基的清除率为31.70%±2.4%,表明其具有较好的抗氧化活性;抗菌活性试验结果表明,制得的黄瓜籽多肽对铜绿假单胞菌有抑制作用。

关键词：黄瓜籽多肽碱性蛋白酶抗氧化活性抗菌活性