Estimating the Longitudinal Dispersion Coefficient from Experimen-
Estimating longitudinal dispersion coefficient in natural streams using empirical models and machine learning algorithms
... The longitudinal dispersion coefficient (LDC) plays an important role in modeling the transport of pollutants and sediment in natural ...sets from 60 rivers around the world with different ...
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Estimating Longitudinal Dispersion Coefficient in Natural Streams Using Empirical Models and Machine Learning Algorithms
... Abstract Longitudinal dispersion coefficient (LDC) plays an essential role in modeling the transport of pollution and sediment in the natural ...
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Estimating longitudinal dispersion coefficients in natural channels
... flow coefficient—on the velocity profiles and dispersion coefficient and evaluates the new empirical formula for the dispersion ...and longitudinal dispersion coefficient ...
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Quantifying the impact of uncertainty within the longitudinal dispersion coefficient on concentration dynamics and regulatory compliance in rivers
... advection dispersion equation (1D ADE) is commonly used in practice to simulate pollutant transport processes for assessment and improvement of water quality conditions in ...the longitudinal ...
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Spatial variation of the longitudinal dispersion coefficient in an estuary
... mean longitudinal salinity gradients along the SRE at low and high tides under different river discharges are shown in ...increases from downstream of the SRE to middle regimes and then decreases in the ...
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Longitudinal Dispersion Coefficient in Single-Channel Streams
... isolated from the running water in the main chan- ...tudinal dispersion 共Bencala and Walters 1983; Czernuszenko and Rowinski 1997, 1998; Lees et ...calculated from the four parameter- model fit ...
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Prediction of Longitudinal Dispersion Coefficient in Natural Channels Using Soft Computing Techniques
... euent from industrial factories or acci- dental disposal of contaminants into natural channels like streams and rivers will deteriorate the quality of water due to lack of proper ...in longitudinal and ...
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Predicting Longitudinal Dispersion Coefficient in Natural Streams Using M5′ Model Tree
... CONCLUSION In this study, M5´ model tree was used to predict the longitudinal dispersion coefficient in natural streams. The model was developed using 149 field data records consisting of hydraulic ...
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Longitudinal dispersion in steady and unsteady pipe flow
... pseudo-steady. From Table ...the longitudinal dispersion coefficient predicted through the numerical model and the observed value obtained through the optimisation procedure is ≈ 35% for all ...
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Pool Effects on Longitudinal Dispersion in Streams and Rivers
... derived from the 2-D transport equation − Q D W 0 t or q D t , which outlines the relative transverse mixing intensity of a stream or river, where, of the stream reach concerned, W is the flow width, Q 0 ...
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Aspects of Longitudinal Dispersion in Saturated Porous Media
... the coefficient of thickness of the fluid, is the steady estimation of temperature and coefficient of thickness far from the sheet and qr is the radiative heat ...commitment from the normal ...
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Robust Inference for Time Varying Coefficient Models with Longitudinal Data
... Time-varying coefficient models are useful in longitudinal data ...the coefficient functions, based on the least squares ...suffer from the shortcoming of ...for estimating the ...
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Experimental Determination of Dispersion Coefficient in Soil
... soil dispersion experiment was done using three different soil samples which includes sand, clay and silt ...experimentally dispersion coefficient in ...the dispersion coefficient was ...
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Estimating Allele Age and Selection Coefficient from Time-Serial Data
... ABSTRACT Recent advances in sequencing technologies have made available an ever-increasing amount of ancient genomic data. In particular, it is now possible to target specific single nucleotide polymorphisms in several ...
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Estimating Fundamental Cross-Section Dispersion from Fixed Event Forecasts
... uncertainty. From the six candidate approaches which we will consider in this paper, one is dif- ferent from the remaining five approaches in the sense that it tackles the problem at a fundamentally ...
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Longitudinal dispersion in laboratory and natural streams
... Study reach of the Green-Duwamish River, showing dye-injection point and sampling stations. Cross sections looking downstream at selected sampling stations, showing high[r] ...
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Longitudinal dispersion in a partially mixed estuary
... We have presented a model for longitudinal dispersion in a stratified estuary due to horizontal turbulence and to the interaction of vertical shear in both the ti[r] ...
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Determine Dispersion Coefficient of 85Rb Atom in the Y–Configuration
... the dispersion coefficient of 85 Rb atom for a weak probe laser beam induced by a strong coupling laser ...control dispersion coefficient by frequency detuning and of the coupling ...the ...
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Liability structure in small-scale finance : evidence from a natural experimen
... One cannot simply compare clients across lending contracts, since self-selection or other aspects of the program may be the root cause of any observed differences. In this paper, we use a natural experiment to compare ...
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Investment Basics XLVI. On estimating the beta coefficient
... beta coefficient which is far higher than the average beta is more likely to be an overestimate of the true beta than an ...obtained from the regression analysis may be suboptimal for forecasting ...
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