Browsing by Subject "Entropy"
Now showing items 117 of 17

Derivation of 2D PowerLaw Velocity Distribution Using Entropy Theory
(20130408)The onedimensional (1D) power law velocity distribution, commonly used for computing velocities in open channel flow, has been derived empirically. However, a multitude of problems, such as scour around bridge piers, ... 
Derivation of Furrow Geometry Using Entropy Theory
(American Society of Agricultural and Biological Engineers, 2012)The instantaneous unit hydrograph (IUH) is a commonly used method for computing surface runoff hydrographs from small watersheds. Assuming travel time as a random variable, a general equation for IUH is derived using the ... 
Derivation of Rating Curves Using Entropy Theory
(American Society of Agricultural and Biological Engineers, 2010)Using the entropy theory, this study derives the stage‐discharge relation, often called the rating curve, which is based on two simple constraints: (1) the total probability and (2) the mean logarithmic discharge. Parameters ... 
Discontinuous Galerkin Finite Element Method for the Nonlinear Hyperbolic Problems with EntropyBased Artificial Viscosity Stabilization
(20120716)This work develops a discontinuous Galerkin finite element discretization of non linear hyperbolic conservation equations with efficient and robust high order stabilization built on an entropybased artificial viscosity ... 
Entropy approach for 2D velocity distribution in openchannel flow
(20111121)In this paper, considering timeaveraged velocity as a random variable, twodimensional (2D) velocity distributions in openchannel flow have been derived based on the Shannon entropy concept and the principle of maximum ... 
Entropy theory for derivation of infiltration equations
(American Geophysical Union, 2010)An entropy theory is formulated for modeling the potential rate of infiltration in unsaturated soils. The theory is composed of six parts: (1) Shannon entropy, (2) principle of maximum entropy (POME), (3) specification ... 
Entropy theory for movement of moisture in soils
(American Geophysical Union, 2010)An entropy theory is formulated for one‐dimensional movement of moisture in unsaturated soils in the vertically downward direction. The theory is composed of five parts: (1) Tsallis entropy, (2) principle of maximum entropy, ... 
Generic Properties of Actions of F_n
(20111021)We investigate the genericity of measurepreserving actions of the free group Fn, on possibly countably infinitely many generators, acting on a standard probability space. Specifically, we endow the space of all ... 
Integrated Drought Modeling For Texas Under Climate Change Impact With Implications For Water Resources Planning
(20141202)Drought is a deficiency in the hydro climatic variable of interest that is experienced for an extended period of time. In many parts of the world, it is a normal, recurring feature of climate and is therefore inevitable. ... 
Integrating Entropy and Copula Theories for Hydrologic Modeling and Analysis
(20150415)Entropy is a measure of uncertainty and has been commonly used for various applications, including probability inferences in hydrology. Copula has been widely used for constructing joint distributions to model the dependence ... 
An IUH Equation Based on Entropy Theory
(American Society of Agricultural and Biological Engineers, 2011)The instantaneous unit hydrograph (IUH) is a commonly used method for computing surface runoff hydrographs from small watersheds. Assuming travel time as a random variable, a general equation for IUH is derived using the ... 
Modeling multisite streamflow dependence with maximum entropy copula
(American Geophysical Union, 2013)Synthetic streamflows at different sites in a river basin are needed for planning, operation, and management of water resources projects. Modeling the temporal and spatial dependence structure of monthly streamflow at ... 
Quantum Channels and their Minimum Output Entropies
We investigate nonrandom quantum channels generated from the representation the ory of orthogonal quantum groups to perform numerical computations for estimates of their minimum output entropies. In doing so, we address ... 
Removing the Entropy Screen To Let the Second Law Show
(Energy Systems Laboratory (http://esl.eslwin.tamu.edu), 198809)What we shape is what we see. When we try to shape something without seeing it clearly, the probability of achieving a happy result is low. When we talk about "saving energy" what we usually mean is "not wasting work". ... 
Seasonal Precipitation Variability and Its Impact on Vegetation Dynamics under Climate Change and Aridity Spectra of the Southwest United States Ecosystems
(20150116)This study combines hydroclimatological and biological components for addressing variability in precipitation and vegetation patterns under climate change. We explore the marginal and interactive effects of vegetation and ... 
Tsallis Entropy Theory for Derivation of Infiltration Equations
(American Society of Agricultural and Biological Engineers, 2010)An entropy theory is formulated for deriving infiltration equations for potential rate (or capacity) of infiltration in unsaturated soils. The theory is comprised of five parts: (1) Tsallis entropy, (2) principle of maximum ... 
Tsallis EntropyBased Flow Duration Curve
(American Society of Agricultural and Biological Engineers, 2014)The flow duration curve (FDC) is employed for addressing a multitude of problems in water resources engineering, such as prediction of the distribution of future flows, forecasting of future recurrence frequencies, comparison ...