Contaminant transport in a fracture with spatially variable aperture in the presence of monodisperse and polydisperse colloidsSpringer Science and Business Media LLC - Tập 19 - Trang 266-279 - 2005
Scott C. James, Tanya K. Bilezikjian, Constantinos V. Chrysikopoulos
A quasi-three-dimensional particle tracking model is developed to characterize the spatial and temporal effects of advection, molecular diffusion, Taylor dispersion, fracture wall deposition, matrix diffusion, and co-transport processes on two discrete plumes (suspended monodisperse or polydisperse colloids and dissolved contaminants) flowing through a variable aperture fracture situated in a poro...... hiện toàn bộ
COVID-19 transmission risk in Surabaya and Sidoarjo: an inhomogeneous marked Poisson point process approachSpringer Science and Business Media LLC - Tập 37 - Trang 2271-2282 - 2023
Achmad Choiruddin, Firdaus Fabrice Hannanu, Jorge Mateu, Vanda Fitriyanah
Understanding the spatio-temporal dynamics of COVID-19 transmission is necessary to plan better strategies for controlling the spread of the disease. However, only a few studies explore the COVID-19 transmission risk over a fine spatial resolution while considering relevant spatial and temporal factors. To this aim, we consider an inhomogeneous marked Poisson point process model to assess COVID-19...... hiện toàn bộ
Establishing acceptance regions for L-moments based goodness-of-fit tests for the Pearson type III distributionSpringer Science and Business Media LLC - Tập 26 - Trang 873-885 - 2011
Yii-Chen Wu, Jun-Jih Liou, Yuan-Fong Su, Ke-Sheng Cheng
Goodness-of-fit tests based on the L-moment-ratio diagram for selection of appropriate distributions for hydrological variables have had many applications in recent years. For such applications, sample-size-dependent acceptance regions need to be established in order to take into account the uncertainties induced by sample L-skewness and L-kurtosis. Acceptance regions of two-parameter distribution...... hiện toàn bộ
Evaluating the effect of the uncertainty of CMIP6 models on extreme flows of the Caspian Hyrcanian forest watersheds using the BMA methodSpringer Science and Business Media LLC - Tập 37 - Trang 491-505 - 2022
Morteza Lotfirad, Arash Adib, Mohammad Mehdi Riyahi, Mohammad Jafarpour
This paper investigates the effects of climate change on the hydrological and meteorological parameters of the Navrood Watershed (a Caspian Hyrcanian forest watershed) in the north of Iran. Outputs of seven CMIP6 GCMs (Tmin, Tmax, and precipitation) under two scenarios, SSP2-4.5 and SSP5-8.5, were utilized. This study considered the historical period (1994–2014), the near future (2025–2049), the m...... hiện toàn bộ
Heavy metals in soil of an urban industrial zone in a metropolis: risk assessment and source apportionmentSpringer Science and Business Media LLC - Tập 34 - Trang 435-446 - 2020
Yanyao Li, Yuan Yuan, Chengju Sun, Ting Sun, Xianglin Liu, Jianbin Li, Lei Fang, Zhengqiu Fan
The risk of heavy metal pollution in industrial zones has received great awareness, but few studies have focused on urban industrial zone of metropolises. In order to explore the pollution characteristic, ecological risks, human health risks, and sources apportionment of heavy metals (HMs), the concentrations of 9 HMs (As, Cd, Cr, Cu, Hg, Mn, Ni, Pb, Zn) in 48 soil sites of a typical urban industr...... hiện toàn bộ
Human-induced regulations of river channels and implications for hydrological alterations in the Pearl River Delta, ChinaSpringer Science and Business Media LLC - Tập 25 - Trang 1001-1011 - 2011
Qiang Zhang, Yongqin David Chen, Tao Jiang, Xiaohong Chen, Zufa Liu
Sound understanding of hydrological alterations and the underlying causes means too much for the water resource management in the Pearl River Delta. Incision of river channels plays the key role in the hydrological alterations. As for the causes behind the river channel incision, sand dredging within the river network of the Pearl River Delta is usually assumed to play the overwhelming role in cha...... hiện toàn bộ
New anisotropic covariance models and estimation of anisotropic parameters based on the covariance tensor identitySpringer Science and Business Media LLC - Tập 16 - Trang 43-62 - 2002
D. T. Hristopulos
Many heterogeneous media and environmental processes are statistically anisotropic. In this paper we focus on range anisotropy, that is, stochastic processes with variograms that have direction dependent correlation lengths and direction independent sill. We distinguish between two classes of anisotropic covariance models: Class (A) models are reducible to isotropic after rotation and rescaling o...... hiện toàn bộ