Large deformation failure analysis of the soil slope based on the material point method     

Peng Huang  Shun-li Li  Hu Guo  Zhi-ming Hao 《Computational Geosciences》2015,19(4):951-963

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Spatiotemporal variation of river temperature as a predictor of groundwater/surface-water interactions in an arid watershed in China   总被引：1，自引：1，他引：0  

Yingying Yao  Xiang Huang  Jie Liu  Chunmiao Zheng  Xiaobo He  Chuankun Liu 《Hydrogeology Journal》2015,23(5):999-1007

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The soil–water flow system beneath a cotton field in arid north-west China,serviced by mulched drip irrigation using brackish water     

Xianwen Li  Menggui Jin  Jinou Huang  Jingjing Yuan 《Hydrogeology Journal》2015,23(1):35-46

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Sedimentary and hydrological studies of the Holocene palaeofloods in the Shanxi-Shaanxi Gorge of the middle Yellow River,China     

Xiaogang Li  Chun Chang Huang  Jiangli Pang  Xiaochun Zha  Yugai Ma 《International Journal of Earth Sciences》2015,104(1):277-288

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A study of the kinematics of unusually H I‐rich galaxies     

M. den Heijer  G. I. G. Jzsa  J. Kerp  P. Serra  Th. van der Hulst  G. Kauffmann  J. Wang  F. Bigiel  J. Brinchmann  D. Carton  D. Cormier  M.‐L. Huang 《Astronomische Nachrichten》2015,336(3):284-311

We examine the H I kinematics of the “Bluedisk” ensemble of 48 galaxies selected from the Sloan Digital Sky Survey and observed in H I with the Westerbork Synthesis Radio Telescope. The sample consists of 25 galaxies with a high H I mass fraction and a comparatively large control sample comprising 23 galaxies of comparable stellar mass, stellar mass surface density, redshift, and inclination. By studying the H I velocity fields of these galaxies, we investigate whether there are signatures of ongoing gas accretion: i.e. global asymmetries and indications for warping and kinematical lopsidedness. We find no enhanced kinematical asymmetries between the H I‐rich sample and the control sample galaxies, indicating no significant difference in kinematical signatures such as warping and lopsidedness. Furthermore, we find no difference in position angle and systemic velocity offset with respect to the optical between both sub‐samples. We therefore do not find compelling evidence for enhanced global asymmetry of the H I‐excess galaxies ensemble properties in comparison to the control sample galaxies. (© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)  相似文献   

SVOM数据档案库软件原型系统的设计与实现   总被引：1，自引：0，他引：1  

王玉涵  黄茂海  刘飞飞 《天文研究与技术》2015,(3)

作为中法天文卫星(Space multi-band Variable Object Monitor,SVOM)中方科学中心的重要组成部分,中法天文卫星数据档案库承担了中方科学数据产品本地存储和管理的任务,提供统一的数据产品管理平台,实现中法天文卫星科学数据产品的归档、检索、检出、维护与管理等功能。作为中法天文卫星科学中心预研的一部分,对中法天文卫星数据档案库原型系统进行了需求分析、系统设计,实现能够运行的原型系统,以演示中法天文卫星数据档案库的基本功能和工作流程,验证设计方案的可行性。档案库原型系统具有开放性和低耦合的特点,能够适应中法天文卫星中方数据产品结构的不断变化,在项目早期即可投入试用并不断完善,满足中法天文卫星的任务需求。  相似文献   

Optical observations of the broad-lined type Ic supernova SN 2012ap     

Zheng Liu  Xu-Lin Zhao  Fang Huang  Xiao-Feng Wang  Tian-Meng Zhang  Jun-Cheng Chen  Tong-Jie Zhang 《天文和天体物理学研究(英文版)》2015,(2):225-236

The optical observations of the type Ic supernova(SN Ic) SN 2012 ap in NGC 1729 are presented. A comparison with other SNe Ic indicates that SN 2012 ap is highly reddened(with E(B- V)host～0.8 mag) and may represent one of the most luminous SNe Ic ever observed, with an absolute V-band peak magnitude of ～-19.3±0.5 mag after extinction correction. The near-maximum-light spectrum shows wide spectral features that are typical of broad-lined SNe Ic. One interesting feature in the spectrum is the appearance of some narrow absorption features that can be attributed to the diffuse interstellar bands, consistent with the large reddening inferred from the photometric method. Based on the light curves and the spectral data, we estimate that SN 2012 ap produced a56 Ni mass of ～ 0.3 ± 0.1M in the explosion, with an ejecta mass of 2.4+0.7-0.7M and a kinetic energy of E5K= 1.1+0.4-0.4× 102 erg. The properties of its progenitor are also briefly discussed.  相似文献   

Convection-permitting regional climate simulation of warm-season precipitation over Eastern China     

Yun  Yuxing  Liu  Changhai  Luo  Yali  Liang  Xudong  Huang  Ling  Chen  Fei  Rasmmusen  Roy 《Climate Dynamics》2020,54(3):1469-1489

Climate Dynamics - Convection-permitting regional climate models have been shown to improve precipitation simulation in many aspects, such as the diurnal cycle, precipitation frequency, intensity...  相似文献   

Duplex equilibria of Ural circulation anomalies     

Dongdong Li  Yongli He  Jianping Huang 《Climate Dynamics》2020,54(3):1425-1452

Atmospheric circulation anomalies over the Ural Mountains are crucial indicators of the anomalous downstream weather and climate over East Asia. Here, we provide a new perspective on the mechanism of Ural circulation anomalies. We use a simple theoretical model to determine that the relationship between the solar forcing and three Ural circulation patterns, namely, neutral type, trough anomaly and ridge anomaly, is a nonlinear relationship following the supercritical pitchfork bifurcation theory. The theory predicts that when the total solar irradiance (TSI) is below a critical value, trough and ridge anomalies represent duplex equilibria and are equally likely to occur at the same TSI. Based on 180 winter months record, we have estimated the bidimensional probability density of TSI and the monthly mean geopotential height at 500 hPa or zonal wind at 850 hPa over the Ural Mountains. Results show that Sc = 1360.9 W m−2 is a critical value of TSI, the neutral type pattern is the single circulation regime when TSI > Sc, whereas trough and ridge anomaly patterns are duplex circulation regimes when TSI < Sc. Besides, when TSI < Sc, during the same TSI range, trough and ridge anomaly events occur at nearly the same frequencies. These results generally agree with the theoretical model. We demonstrate that trough and ridge anomalies, as duplex equilibria, result from the large-scale zonal flow interacting with the Ural Mountains. Low TSI tends to strengthen the large-scale zonal flow over the Ural Mountains, hence inducing either a trough anomaly or ridge anomaly.  相似文献   

A new DRP-4DVar-based coupled data assimilation system for decadal predictions using a fast online localization technique     

He  Yujun  Wang  Bin  Huang  Wenyu  Xu  Shiming  Wang  Yong  Liu  Li  Li  Lijuan  Liu  Juanjuan  Yu  Yongqiang  Lin  Yanluan  Huang  Xiaomeng  Peng  Yiran 《Climate Dynamics》2020,54(7):3541-3559

Climate Dynamics - A new coupled data assimilation (CDA) system based on dimension-reduced projection four-dimensional variational data assimilation (DRP-4DVar) for decadal predictions is developed...  相似文献