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Contributions to the Interannual Summer Rainfall Variability in the Mountainous Area of Central China and Their Decadal Changes

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Advances in Atmospheric Sciences 2020年第3期37卷 259-268页

作者： Kaiming HU Yingxue LIU gang huang Zhuoqi HE Shang-Min LONG Center for Monsoon System Research Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China State key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Joint Center for Global Change Studies(JCGCS) Beijing 100875China University of Chinese Academy of Sciences Beijing 100049China Laboratory for Regional Oceanography and Numerical Modeling Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China College of Oceanography Hohai UniversityNanjing 210098China

Using a high-resolution precipitation dataset,the present study detected that the mountainous area of central China(MACA)is a hotspot of ENSO’s impact on the summer rainfall *** analysis suggests that both ENSO and atmospheric forcing make contributions to the summer rainfall variability in *** dominant rainfall-related SST mode features as a seasonal transition from an El Niño-like warming in the preceding winter to a La Nina-like cooling in the following autumn,and it explains about 29%of the total variance of the rainfall during 1951–*** indicates that ENSO with a rapid phase transition is responsible for inducing summer rainfall anomalies in ***,an upperlevel circumglobal wave mode in the Northern Hemisphere during summer also explains about 29%of the summer rainfall *** of both the SST and the atmospheric modes have experienced interdecadal *** influence of the SST mode gradually increases and plays a dominant role in the recent decades,suggesting that ENSO with a rapid phase transition becomes more important for rainfall prediction in MACA.

关键词： summer rainfall ENSO atmospheric internal variability interdecadal change

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Fluorescent light enhanced graphitic carbon nitride/ceria with ultralow-content platinum catalyst for oxidative decomposition of formaldehyde at ambient temperature

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Rare Metals 2021年第11期40卷 3135-3146页

作者： gang huang Zhi-Hua Xu Ting-Ting Luo Zhao-Xiong Yan Meng Zhang Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education Jianghan UniversityWuhan 430056China Materials Analysis Center Wuhan University of TechnologyWuhan 430070China Hubei Key Laboratory of Industrial Fume and Dust Pollution Control Jianghan UniversityWuhan 430056China

The complete decomposition of formaldehyde(HCHO) at ambient temperature is the most potential strategy for HCHO elimination from indoor ***,extra low content of Pt nanoparticles(0.025 wt%)supported on water-solubility carbon nitride/ceria(Pt/gC_(3)N_(4)@CeO_(2)) was prepared for gaseous HCHO removal at ambient temperature in a simulated indoor *** light(8 W) illumination could visibly boost the complete decomposition of HCHO into CO_(2) over Pt/gC_(3)N_(4)@CeO_(2).The cooperative effect in the distinct heterostructure and plenty of surface reactive oxygen species contribute primarily to the enhanced catalytic performance of Pt/g-C_(3)N_(4)@CeO_(2).Moreover,the possible mechanism of HCHO oxidation over Pt/g-C_(3)N_(4)@CeO_(2) assisted by the fluorescent light irradiation was proposed based on the physicochemical and optical characterization as well as the result of in situ diffuse reflectance infrared Fourier transform *** work might shed some light on the potential application of the versatile catalysts for ambient-temperature catalytic decomposition of HCHO by making full use of the indoor energies.

关键词： Graphitic carbon nitride(g-C3N4) CeO_(2) Catalytic oxidation Formaldehyde decomposition Ambient temperature Fluorescent light irradiation

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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

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Serverless distributed learning for smart grid analytics

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Chinese Physics B 2021年第8期30卷 558-565页

作者： gang huang Chao Wu Yifan Hu Chuangxin Guo Zhejiang Lab Hangzhou 311121China School of Public Affairs Zhejiang UniversityHangzhou 310058China Polytechnic Institute Zhejiang UniversityHangzhou 310015China College of Electrical Engineering Zhejiang UniversityHangzhou 310027China

The digitization,informatization,and intelligentization of physical systems require strong support from big data ***,due to restrictions on data security and privacy and concerns about the cost of big data collection,transmission,and storage,it is difficult to do data aggregation in real-world power systems,which directly retards the effective implementation of smart grid *** learning,an advanced distributed learning method proposed by Google,seems a promising solution to the above ***,it relies on a server node to complete model aggregation and the framework is limited to scenarios where data are independent and identically ***,we here propose a serverless distributed learning platform based on blockchain to solve the above two *** the proposed platform,the task of machine learning is performed according to smart contracts,and encrypted models are aggregated via a mechanism of knowledge *** this proposed method,a server node is no longer required and the learning ability is no longer limited to independent and identically distributed *** on a public electrical grid dataset will verify the effectiveness of the proposed approach.

关键词： smart grid physical system distributed learning artificial intelligence

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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

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A semi-analytical model for the propagation of Rossby waves in slowly varying flow

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Chinese Science Bulletin 2011年第25期56卷 2727-2731页

作者： LIU Fei CHAO JiPing huang gang FENG LiCheng Key Laboratory of Regional Climate-Environment Research for Temperate East Asia Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China International Pacific Research Center University of Hawaii at Manoa Honolulu 96822 USA National Marine Environmental Forecasting Center Beijing 100081 China State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100083 China

Instead of using complicated general circulation models (GCMs), a simple semi-analytical model based on ray theory has been used to study energy evolution and ray path of Rossby waves in slowly varying mean flows. Our model yields similar results to those calculated from barotropic models, and also provides a chance to study Rossby waves in the slowly varying flows with both vertical and meridional shears. The model results show that upward Rossby waves can only grow in westerlies, and decay when further ascend. The baroclinic Rossky waves are restrained by the β effect in lower latitude. In the westerly jet with meridional and vertical shears, the barotropic Rossby waves originated from south of the westerly jet, and these can grow while propagating upper-northward. The baroclinic Rossby waves originated from north of the westerly jet and can grow while propagating upward and southward. Such a semi-analytical model provides a simple forecasting tool to allow study of the local weather anomalies to the heating/topography forcing associated with the global warming.

关键词： Rossby波半解析模型传播模式大气环流模型变流西风急流 GCMS 射线路径

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Comparisons of dosimetric properties between GD-300 series of radiophotoluminescent glass detectors and GR-200 series of thermoluminescent detectors

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Nuclear Science and Techniques 2007年第6期18卷 362-365页

作者： ZHUO Weihai LIU Weiqi huang gang ZHU Guoying MA Guocai Institute of Radiation Medicine Fudan University Shanghai 200032 China

In order to compare the dosimetric properties of two kinds of solid state detectors used for monitoring ex- ternal exposures,experiments were performed for the GD-300 series of radiophotoluminescent glass detectors (RPLGD)and the GR-200 series of thermoluminescent detectors(TLD).X-rays and ^(137)Cs and ^(60)Coγ-rays were used to irradiate the RPLGDs and TLDs,their dose linearity,uniformity/reproducibility of signal,fading effect and energy dependence were *** kinds of the detectors have generally good dosimetric *** dose linearity and energy dependence of the GD-351 dosimeters and the TLDs are nearly the same,but the RPLGD is much better than the TLD in terms of the uniformity and fading effect.

关键词：放射光致发光热致发光衰落效应能量反应剂量计

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Synthesis and Evaluation of 8-[^(131)I]Iodo-substituted Imidazopyridine Derivative as Single Photon Emission Computed Tomography Tracer for Peripheral Benzodiazepine Receptors

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Chinese Chemical Letters 2006年第11期17卷 1435-1438页

作者： Bin LI Jian Feng LI Xiao Guang SUN gang huang Department of Nuclear Medicine Reiji Hospital Medical School of Shanghai Jiaotong University Shanghai 200127 Shanghai Institute of Materia Medica Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 200127

A novel N-methyl, N-phenyl-[6-chloro-2-（4-chlorophenyl）-8-iodoimidazo[1, 2-a]- pyridine-3-yl]acetamide （compound Ⅴ） was synthesized, radiolabelled with 131I and evaluated in vitro. In vitro cell uptake studies showed that MDA-MB-231 cells yield four-fold higher specific uptake of [^131I]-compound Ⅵ than MCF-7 cells, corresponding to the increased expression of PBR in MDA-MB-231 cells. Blocking studies significantly reduced the MDA-MB-231 cells uptake of [^131I]-compound Ⅵ. It indicated that [^131I]-compound Ⅵ might be a potential SPECT radioligand for imaging of PBR.

关键词： Imidazo[1 2-a]pyridineacetamide peripheral benzodiazepine receptors synthesis,iododestannylation.

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WPIA: accelerating DNN warm-up in Web browsers by precompiling WebGL programs

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Frontiers of Computer Science 2024年第6期18卷 186211-186211页

作者： TIAN Deyu MA Yun HAN Yudong YANG Qi YANG Haochen huang gang Key Laboratory of High Confidence Software Technologies (Peking University) Ministry of Education School of Computer Science Peking University Institute for Artificial Intelligence Peking University National Key Laboratory of Data Space Technology and System

In this paper, we study the long warm-up time of GPU acceleration of DNN inference in Web browsers. We analyzed the reason behind the long warm-up time through a measurement study and revealed that compiling WebGL programs takes most of the warm-up time. Inspired by this finding, we proposed WPIA, an approach that suggests precompiling WebGL programs on the server side to avoid compiling them in Web browsers. WPIA tackles the challenges of precompiling by merging WebGL programs and using a record-and-replay technique. Evaluation experiment results show that WPIA can accelerate the DNN warm-up time to an order of magnitude.

关键词： Web browsers

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Surface Temperature Changes Projected by FGOALS Models under Low Warming Scenarios in CMIP5 and CMIP6

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Advances in Atmospheric Sciences 2021年第2期38卷 203-220页

作者： Shang-Min LONG Kai-Ming HU Gen LI gang huang Xia QU Key Laboratory of Marine Hazards Forecasting Ministry of Natural ResourcesHohai UniversityNanjing 210098China College of Oceanography Hohai UniversityNanjing 210098China State key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics and Center for Monsoon System Research Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China

To meet the low warming targets proposed in the 2015 Paris Agreement,substantial reduction in carbon emissions is needed in the *** is important to know how surface climates respond under low warming *** present study investigates the surface temperature changes under the low-forcing scenario of Representative Concentration Pathways(RCP2.6)and its updated version(Shared Socioeconomic Pathways,SSP1-2.6)by the Flexible Global Ocean-Atmosphere-Land System(FGOALS)models participating in phases 5 and 6 of the Coupled Model Intercomparison Project(CMIP5 and CMIP6,respectively).In both scenarios,radiative forcing(RF)first increases to a peak of 3 W m^−2 around 2045 and then decreases to 2.6 W m^−2 by *** mean surface air temperature rises in all FGOALS models when RF increases(RF increasing stage)and declines or holds nearly constant when RF decreases(RF decreasing stage).The surface temperature change is distinct in its sign and magnitude between the RF increasing and decreasing stages over the land,Arctic,North Atlantic subpolar region,and Southern ***,the regional surface temperature change pattern displays pronounced model-to-model spread during both the RF increasing and decreasing stages,mainly due to large intermodel differences in climatological surface temperature,ice-albedo feedback,natural variability,and Atlantic Meridional Overturning Circulation *** pattern of tropical precipitation change is generally anchored by the spatial variations of relative surface temperature change(deviations from the tropical mean value)in the FGOALS ***,the projected changes in the updated FGOALS models are closer to the multi-model ensemble mean results than their predecessors,suggesting that there are noticeable improvements in the future projections of FGOALS models from CMIP5 to CMIP6.

关键词： surface temperature low warming targets Arctic amplification AMOC Southern Ocean

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