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Atmospheric and Oceanic Science Letters 2015年第6期8卷 327-332页

作者： hu kai-ming State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics & Center for Monsoon System Research Institute of Atmospheric Physics Chinese Academy of Sciences

Using observational data and model simulations,the author find that the North Indian Ocean(NIO)sea surface temperature(SST)anomalies can trigger an eastward atmospheric Kelvin wave propagating into the equatorial western Pacific,inducing an anomalous anticyclone over the subtropical Northwest Pacific(NWP)and resulting in prominent summer climate anomalies in the East Asia-Northwest Pacific(EANWP)***,the response of tropospheric temperatures and atmospheric Kelvin waves to the South Indian Ocean(SIO)SST anomalies is weak;as a result,the impact of the SIO SST anomalies on the EANWP summer climate is *** contrasting impacts of NIO and SIO SST anomalies on the EANWP summer climate is possibly due to the different mean state of SSTs in the two *** summer,the climatological SSTs in the NIO are higher than in the SIO,leading to a stronger response of atmospheric convection to the NIO SST anomalies than to the SIO SST ***,compared with the SIO SST anomalies,the NIO SST anomalies can lead to stronger tropospheric air temperature anomalies and atmospheric Kelvin waves to affect the EANWP summer climate.

关键词： Indian Ocean Northwest Pacific anticyclone East As

The Oscillation between Tropical Indian Ocean and North Pacific:Evidence and Possible Impact on Winter Climate in China

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Atmospheric and Oceanic Science Letters 2011年第1期4卷 57-63页

作者： hu kai-ming huANG Gang Center for Monsoon System Research Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100080 China State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China

This paper provides evidence that the variation of boreal winter sea level pressure (SLP) over the North Pacific is out-of-phase with SLP fluctuation over the tropical Indian Ocean on both the interdecadal and interannual time ***,a SLP between tropical Indian Ocean and North Pacific (TIO-NP) oscillation index is defined to indicate the variation of such out-of-phase ***,the simultaneous surface air temperature and precipitation anomalies in China are closely related to TIO-NP ***-normal surface air temperature anomalies in the northern and the eastern part of China,and less rainfall in southern China,correspond to positive TIO-NP oscillation phase with negative SLP anomalies in tropical Indian Ocean and positive anomalies in North *** TIO-NP oscillation affects China's winter climate anomalies,possibly through modulating the northeast East Asia winter monsoon.

关键词： North Pacific tropical Indian Ocean oscilla- tion China's climate

The Formation of Precipitation Anomaly Patterns during the Developing and Decaying Phases of ENSO

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Atmospheric and Oceanic Science Letters 2010年第1期3卷 25-30页

作者： hu kai-ming huANG Gang State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China

This study proposes a new explanation for the formation of precipitation anomaly patterns in the boreal summer during the E1 Nifio-Southem Oscillation （ENSO） developing and decaying phases. During the boreal sum- mer June-July-August （JJA）（0） of the E1 Nino （La Nina） developing phase, the upper level （300-100 hPa） positive potential temperature anomalies resemble a Ma- tsuno-Gill-type response to central Pacific heating （cool- ing）, and the lower level （1000-850 hPa） potential tem- perature anomalies are consistent with local SST anoma- lies. During the boreal summer JJA（1） of the E1 Nifio （La Nifia） decaying phase, the upper level potential tempera- ture warms over the entire tropical zone and resembles a Matsuno-Gill-type response to Indian Ocean heating （cooling）, and the lower level potential temperature anomalies follow local SST anomalies. The vertical heterogeneity of potential temperature anomalies influences the atmospheric stability, which in turn influences the precipitation anomaly pattern. The results of numerical experiments confirm our observations.

关键词： precipitation pattern ENSO AGCM

Non-oxidative aromatization of C1 to C3 hydrocarbons over Pd-promoted Ga/HZSM-5 catalyst under mild conditions

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Chinese Chemical Letters 2007年第4期18卷 479-482页

作者： Xiao Chun Shen hui Lou kai hu Xiao ming Zheng Institute of Catalysis Chemistry Department Zhejiang University Hangzhou 310028 China

The Pd-promoted Ga/HZSM-5 catalyst was prepared by impregnation method and its catalytic activity for non-oxidative aromatization of C1 to C3 hydrocarbons was assessed using a microreactor-GC system operated with temperature at 823 K and space velocity at 410 h-1. The catalyst is more catalytically active for methane conversion than Ga/HZSM-5. The mass spectroscopy analyses confirmed that 13CH4 was converted to aromatic products.

关键词： Aromatization Methane Propane Low-temperature Isotope

Perspectives on the non-stationarity of the relationship between Indian and East Asian summer rainfall variations

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Atmospheric and Oceanic Science Letters 2018年第2期11卷 104-111页

作者： WU Ren-Guang hu kai-ming LIN Zhong-Da Center for Monsoon System Research Institute of Atmospheric Physics Chinese Academy of Science state Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Center for Monsoon System Research institute of Atmospheric physics Chinese Academy of Science State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences

The relationship between Indian and East Asian summer rainfall variations is non-stationary in observations as well as in historical simulations of climate *** this non-stationarity due to changes in effects of external forcing or internal atmospheric processes？ Whilst ENSO is an important oceanic forcing of Indian and East Asian summer rainfall variations,its impacts cannot explain the observed long-term changes in the Indian-East Asian summer rainfall *** Carlo test indicates that the role of random processes cannot be totally excluded in the observed longterm changes of the *** of climate model outputs shows that the Indian-North China summer rainfall relationship displays obvious temporal variations in both individual and ensemble mean model simulations and large differences among model *** suggests an important role played by atmospheric internal variability in changes of the Indian-East Asian summer rainfall *** point of view is supported by results from a 100-years AGCM simulation with climatological SST specified in the global *** correlation between Indian and North China or southern Japan summer rainfall variations displays large fluctuations in the AGCM simulation

关键词： Indian and East Asian summer rainfall nonstationary relationship ENSOinternal atmospheric variability

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轴向受压梁非线性随机最优电压有界控制

浙江大学学报（工学版） 2020年第5期54卷 940-946,971页

作者：胡凯明李华中国计量大学机电工程学院浙江杭州310018 浙江大学航空航天学院浙江杭州310027

针对轴向受压细长结构容易在外界扰动下产生低频大幅振动的问题,基于几何非线性理论、压电耦合场理论和拉格朗日方程,推导表面贴附压电作动片的轴向受压梁的机电能量表达式,建立轴向受压梁的非线性随机振动压电主动控制模型;考虑压电作... 详细信息

针对轴向受压细长结构容易在外界扰动下产生低频大幅振动的问题,基于几何非线性理论、压电耦合场理论和拉格朗日方程,推导表面贴附压电作动片的轴向受压梁的机电能量表达式,建立轴向受压梁的非线性随机振动压电主动控制模型;考虑压电作动器工作电压的限制因素,利用随机平均法和动态规划方程导出改进型的非线性随机最优电压有界控制策略.该策略包括无界最优电压和bang-bang控制电压,因而较bang-bang电压控制律具有更好的连续性.对简支轴向受压梁在多种情况下的非线性随机振动最优控制进行数值仿真,与bangbang电压控制律进行比较,结果表明本研究导出的改进型电压控制律所需的压电作动器控制电压大幅下降,而振动控制效果略有降低.

关键词：压电结构轴向受压梁非线性随机动力学最优控制电压有界

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1,2,4,5-四取代苯的合成与荧光性质

功能材料 2009年第11期40卷 1773-1776,1779页

作者：胡凯明钱鹰东南大学化学化工学院江苏南京211189

通过Wittig-Horner反应合成了两个四取代苯:1,2,4,5-四(4-N,N-二苯氨基苯乙烯基)苯(TDASB)和1,2,4,5-四[4-N,N-二(4-溴苯基)氨基苯乙烯基]苯(TDBSB)。目标化合物结构经过红外光谱、核磁共振谱、质谱和熔点确证,测定了它们在不同溶剂中... 详细信息

通过Wittig-Horner反应合成了两个四取代苯:1,2,4,5-四(4-N,N-二苯氨基苯乙烯基)苯(TDASB)和1,2,4,5-四[4-N,N-二(4-溴苯基)氨基苯乙烯基]苯(TDBSB)。目标化合物结构经过红外光谱、核磁共振谱、质谱和熔点确证,测定了它们在不同溶剂中的紫外光谱和荧光光谱。TDASB和TDBSB在二氯甲烷中的最大吸收峰分别位于400和396nm,最大发射峰分别为493和491nm,荧光寿命分别为1.7022、3.633和1.2810、4.8473ns,讨论了Stokes位移与溶剂极性的关系。

关键词： Wittig-Horner反应荧光性质荧光寿命 Stokes位移

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新型三苯胺树枝分子的合成及荧光发射性质

功能材料 2011年第2期42卷 210-213页

作者：胡凯明钱鹰东南大学化学化工学院江苏南京211189

采用Wittig-Horner反应合成了一种新型三苯胺树枝分子1,2,4,5-四{4-{N,N-双{4-{4-[5-(4-叔丁基苯基)-1,3,4-噁二唑-2]苯乙烯基}苯基}氨基}苯乙烯基}苯(TPAB-OXA),并测定了化合物TPAB-OXA在不同溶剂中的紫外吸收光谱、荧光发射光谱及量... 详细信息

采用Wittig-Horner反应合成了一种新型三苯胺树枝分子1,2,4,5-四{4-{N,N-双{4-{4-[5-(4-叔丁基苯基)-1,3,4-噁二唑-2]苯乙烯基}苯基}氨基}苯乙烯基}苯(TPAB-OXA),并测定了化合物TPAB-OXA在不同溶剂中的紫外吸收光谱、荧光发射光谱及量子产率、荧光寿命。在二氯甲烷中,TPAB-OXA的最大吸收峰位于420nm,最大荧光发射峰位于504nm。荧光寿命为1.41ns,量子产率为0.65。讨论了Stokes位移与溶剂极性的关系。

关键词：三苯胺树枝分子 Wittig-Horner反应荧光寿命量子产率溶剂效应

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太湖湖体总氮平衡及水质可控目标

水科学进展 2012年第4期23卷 555-562页

作者：胡开明逄勇王华河海大学环境学院江苏南京210098 河海大学浅水湖泊综合治理与资源开发教育部重点实验室江苏南京210098

通过对2007～2010年环太湖水文巡测及降水调查,进行了湖体总氮平衡分析,在充分调查现有与规划的各类型污染源总量控制工程措施的基础上,量化出具有空间分布的流域总氮污染削减率,利用构建的太湖流域及湖体水环境数学模型模拟污染削减后... 详细信息

通过对2007～2010年环太湖水文巡测及降水调查,进行了湖体总氮平衡分析,在充分调查现有与规划的各类型污染源总量控制工程措施的基础上,量化出具有空间分布的流域总氮污染削减率,利用构建的太湖流域及湖体水环境数学模型模拟污染削减后的太湖湖体总氮浓度场,并提出水质可控目标。结果表明:太湖出入水量共127.8亿m3,其中通过降水进入太湖的水量为24.9亿m3,占入湖总水量的19.5%;全年总氮收支量达到4.47万t,其中通过干湿沉降进入太湖的总氮量为0.70万t,占入湖总通量的15.5%,可见干湿沉降进入太湖的污染物不容忽视,其变化趋势与太湖地区降水特征相关性较好。同时通过模型推算,定出2015年太湖湖体不同功能区总氮的可控目标,整个湖体平均值约为2.3 mg/L,为太湖总量控制提供科学依据。

关键词：总氮平衡可控目标入湖通量干湿沉降太湖

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三苯胺多枝化合物的合成及其荧光性质

功能材料 2008年第6期39卷 957-960,964页

作者：钱鹰胡凯明孟康东南大学化学化工学院江苏南京211189

采用Heck反应合成了2个三苯胺多枝化合物N,N,N-三{5-(4-叔丁基苯基)-1,3,4-噁二唑-2-苯乙烯基-4-苯基}胺(化合物1)和N,N,N-三[4-{2-(3,5-二-[5-(4-叔丁基苯基)-1,3,4-噁二唑-2-]苯基}-1-乙烯基}苯基}胺(化合物2),并测定了它们的吸收光... 详细信息

采用Heck反应合成了2个三苯胺多枝化合物N,N,N-三{5-(4-叔丁基苯基)-1,3,4-噁二唑-2-苯乙烯基-4-苯基}胺(化合物1)和N,N,N-三[4-{2-(3,5-二-[5-(4-叔丁基苯基)-1,3,4-噁二唑-2-]苯基}-1-乙烯基}苯基}胺(化合物2),并测定了它们的吸收光谱、单光子荧光光谱和双光子荧光光谱。化合物1和2在二氯甲烷溶液中单光子荧光发射峰分别位在536和487nm。在锁模Nd∶YAG激光器800nm激光照射下,化合物1和2发射出很强的双光子上转换荧光,其最大波长分别在541和518nm。

关键词：三苯胺多枝化合物 Heck反应双光子荧光