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| 1 | Modeling contaminant transport in homogeneous porous media with fractional advection-dispersion equation显示文摘The newly developed Fractional Advection-Dispersion Equation (FADE), which is FADE was extended and used in this paper for modelling adsorbing contaminant transport by adding an adsorbing term. A parameter estimation method and its corresponding FORTRAN based program named FADEMain were developed on the basis of Nonlinear Least Square Algorithm and the analytical solution for one-dimensional FADE under the conditions of step input and steady state flow. Data sets of adsorbing contaminants Cd and NH4+-N transport in short homogeneous soil columns and conservative solute NaCI transport in a long homogeneous soil column, respectively were used to estimate the transport parameters both by FADEMain and the advection-dispersion equation (ADE) based program CXTFIT2.1. Results indicated that the concentration simulated by FADE agreed well with the measured data. Compared to the ADE model, FADE can provide better simulation for the concentration in the initial lower concentration part and the late higher concentration part of the breakthrough curves for both adsorbing contaminants. The dispersion coefficients for ADE were from 0.13 to 7.06 cm2/min, while the dispersion coefficients for FADE ranged from 0.119 to 3.05 cm1.856/min for NaCI transport in the long homogeneous soil column. We found that the dispersion coefficient of FADE increased with the transport distance, and the relationship between them can be quantified with an exponential function. Less scale-dependent was also found for the dispersion coefficient of FADE with respect to ADE. | HUANG Guanhua, HUANG Quanzhong, ZHAN Hongbin , CHEN Jing, XIONG Yunwu & FENG Shaoyuan College of Hydraulic and Civil Engineering, China Agricultural University, Beijing 100083, China Chinese-Israeli International Center for Research and Training in Agriculture, Beijing 100083, China Department of Geology and Geophysics, Texas A& M University, TZ77843-3115, USA | 2005 | Science China Earth Sciences2005，48，z2： | 3 |
| 2 | ERCP core curriculum显示文摘 | Chutkan R K Ahmad A S Cohen J Cruz-Correa M R Desilets D J Dominitz J A ERCP Core Curriculum prepared by the ASGE Training Committee | 2006 | Gastrointest Endosc2006，63，： | 1 |
| 3 | Long-term variability of thephytoplankton community in an isolated floodplain lake of the Ivin-hema River State Park,Brazil显示文摘 | BOVO-SCOMPARIN V M TRAIN S | 2008 | Hydrobiologia2008，610，： | 1 |
| 4 | The effects of organic andconventional management on biologically active soil organic matter frac-tions显示文摘 | Wander M M Train A S J Stinner B R | 1994 | Soil Science Society of A merica Journal1994，58，： | 1 |
| 5 | The demand for local telephone service:A fully discrete model of residential calling patterns and service choice显示文摘 | Train K Mc Fadden D Ben-Akiva M | 1987 | Rand Journal of Economics1987，18，： | 1 |
| 6 | on human skeletal muscle: the importance of physiologically elevated hormone levels显示文摘 | Habsen S Kvorning T Kjaer M et ah The effect of shortterm strength training | 2001 | Scand J Med Sci Sports2001，11，： | 1 |
| 7 | The demand for local telephone service: a fully discrete model of residential calling patterns and service choice显示文摘 | TRAIN K MCFADDEN D BEN-AKIVA M | 1987 | Rand Journal of Economics1987，18，1： | 1 |
| 8 | The Demand for Local Telephone Service: A Fully Discrete Model of Residential Calling Patterns and Service Choice显示文摘 | TRAIN K E MCFADDEN D BEN-AKIVA M | 1987 | Rand Journal of Economics1987，1，18： | 1 |
| 9 | Nondestructive tes- vertical magnetization and differential-type Hall-sensor array显示文摘 | LEE J CHOI M JUN J ting of train wheels using | 2012 | IEEE Trans- actions on Instrumentation and Measurement2012，61，9： | 1 |
| 10 | Single-agent gemcitabine in pretreated patients with non-small cell lung cancer:results of an Argentinean multicentre phase Ⅱ trail显示文摘 | Van Kooten M Traine G Cinat G | 1999 | Br J Cancer1999，81，5： | 1 |
| 11 | Long-term variability of the phytoplankton community in an isolated floodplain lake of the Ivinhema River State Park, Brazil显示文摘 | Bovo-Scomparin V M Train S | 2008 | Hydrobiologia2008，610，1： | 1 |
| 12 | Fees and Rebates on New Vehicles: Impacts on Fuel Efficiency, Carbon Dioxide Emissions, and Consumer Surplus 显示文摘 | Train K E Davis W B Levine M D | 1997 | Transportation Research Part E1997，33，1： | 1 |
| 13 | Embedding Risk Management into the DNA of the Business 显示文摘 | Paul H Felix S Train M | 2004 | Insurance Digest (Americas edition)2004，，3： | 1 |
| 14 | EphB2/R-Ras signaling regulates glionaa cell adhesion, growth and invasion 显示文摘 | Nakada M Niska J A Train N L | 2005 | Am J Pathol2005，167，2： | 1 |
| 15 | Organic radicals, a promising route towards original molecule-based magnetic materials显示文摘 | Train C Norel L Baumgarten M | 2009 | Coord Chem Rev2009，253，： | 1 |
| 16 | Sonographic detection of rhabdomyosarcoma of the urinary bladder显示文摘 | Poggiani C Train M Auriemma A | 2001 | Eur J Ultrasound2001，13，1： | 1 |
| 17 | Neural Networks显示文摘 | Hagan M T Menhaj M B Training feedforward networks with the Marquardt algorithm | 1994 | IEEE Transactions on1994，，5： | 1 |
| 18 | Single-agent gemcitabine in pretreated patients with non-small cell lung cancer: results of an argentinean multicentre phase Ⅱ trial 显示文摘 | Van Kooten M Traine G Cinat G | 1999 | Br J Cancer1999，81，5： | 1 |
| 19 | A Bimetallic Hy- droformylation Catalyst: High Regioselectivity and Reactivity Through Homobimetallic Cooperativity 显示文摘 | Brousard M E Juma B Train S G | 1993 | Science1993，2611，5155： | 1 |
| 20 | Hybrid Choice Models:Progress and Challenges显示文摘 | BEN-AKIVA M MCFADDEN D TRAIN K | 2002 | Marketing Letters2002，13，3： | 1 |
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