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2003

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Articles 31 - 41 of 41

Full-Text Articles in Physical Sciences and Mathematics

Inverting For Heterogeneous Slip On Three-Dimensional Fault Systems; A First Step Toward Understanding Fault Mechanics, Phillip Resor, D Pollard, F Maerten Dec 2002

Inverting For Heterogeneous Slip On Three-Dimensional Fault Systems; A First Step Toward Understanding Fault Mechanics, Phillip Resor, D Pollard, F Maerten

Phillip G Resor

Many studies of earthquake triggering and fault interaction have relied on highly-idealized fault geometries and slip distributions. Geological and geophysical observations, however, reveal that faults typically are not single planar surfaces with uniform slip bounded by rectangular tiplines, but are composed of multiple curved surfaces with curved tiplines and heterogeneous slip distributions. The segments typically are organized into echelon, conjugate, and intersecting patterns. The discontinuities, bends, intersections, and slip heterogeneities generate stress concentrations that may promote or inhibit slip on nearby faults and thus play an important role in the mechanics of fault systems. It is therefore important to incorporate …


Bayesian Modelling And Forecasting Of Intra-Day Electricity Load, Remy Cottet, Michael Smith Dec 2002

Bayesian Modelling And Forecasting Of Intra-Day Electricity Load, Remy Cottet, Michael Smith

Michael Stanley Smith

With the advent of wholesale electricity markets there has been renewed focus on intra-day electricity load forecasting. This paper employs a multi-equation regression model with a diagonal first order stationary vector autoregresson (VAR) for modeling and forecasting intra-day electricity load. The correlation structure of the disturbances to the VAR and the appropriate subset of regressors are explored using Bayesian model selection methodology. The full spectrum of finite sample inference is obtained using a Bayesian Markov chain Monte Carlo sampling scheme. This includes the predictive distribution of load and the distribution of the time and level of daily peak load, something …


Graphs Of Essentially Equivalent Lattice Paths, Lara Pudwell, Marjorie Brewer, Adam Hughes Dec 2002

Graphs Of Essentially Equivalent Lattice Paths, Lara Pudwell, Marjorie Brewer, Adam Hughes

Lara K. Pudwell

No abstract provided.


Space Ship Earth – Clinic In Forest, Nat Quansah Dec 2002

Space Ship Earth – Clinic In Forest, Nat Quansah

Nat Quansah

No abstract provided.


Boundary-Type Quadrature And Boundary Element Method, Tian-Xiao He Dec 2002

Boundary-Type Quadrature And Boundary Element Method, Tian-Xiao He

Tian-Xiao He

In this paper, we apply a boundary-type quadrature technique to derive a type of boundary element scheme, which is used to solve the boundary-value problems of partial differential equations.Numerical examples for solving the exterior boundary-value problem of Helmholtz equation by using the spline approximation and the spline wavelet approximation are given.


Committee On Climate Change And Sustainable Development: 2002 Annual Report, John Dernbach Dec 2002

Committee On Climate Change And Sustainable Development: 2002 Annual Report, John Dernbach

John C. Dernbach

No abstract provided.


Analytical Upstream Collocation Solution Of A Forced Steady-State Convection-Diffusion Equation, Stephen Brill Dec 2002

Analytical Upstream Collocation Solution Of A Forced Steady-State Convection-Diffusion Equation, Stephen Brill

Stephen H. Brill

We give herein formulas for the solution of the Hermite collocation discretization of a nonhomogeneous steady-state convection-diffusion equation in one spatial dimension and with constant coefficients, defined on a uniform mesh, with Dirichlet boundary conditions. The accuracy of the method is enhanced by employing "upsteam weighting" of the convective term in an optimal way. We discuss also the issue of where to optimally sample the forcing function. Computational examples illustrate the efficacy of the optimal upstream weighting technique combined with optimal sampling of the forcing function.


Oil Droplet Detachment From Metal Surfaces As Affected By And Applied Potential, A. Rowe, A. Davis, R. Counce, Samuel Morton, D. Depaoli, M. Hu Dec 2002

Oil Droplet Detachment From Metal Surfaces As Affected By And Applied Potential, A. Rowe, A. Davis, R. Counce, Samuel Morton, D. Depaoli, M. Hu

Samuel A Morton

No abstract provided.


Rating And Ranking Versus Compliance Analysis; Defuzzification Techniques For Conceptual Design Evaluation, Caroline Lubert, D. Verma Dec 2002

Rating And Ranking Versus Compliance Analysis; Defuzzification Techniques For Conceptual Design Evaluation, Caroline Lubert, D. Verma

Caroline P Lubert

No abstract provided.


Femtosecond Pulse Shaping Approaches To Multiphoton Imaging., W. Warren, W. Wagner, Peifang Tian, T. Ye Dec 2002

Femtosecond Pulse Shaping Approaches To Multiphoton Imaging., W. Warren, W. Wagner, Peifang Tian, T. Ye

Peifang Tian

No abstract provided.


Thermodynamic Model For The Prediction Of Contact Angle Of Oil Droplets On Solid Surfaces In Sds Solutions, Samuel Morton, D. Keffer, R. Counce, D. Depaoli, M. Hu Dec 2002

Thermodynamic Model For The Prediction Of Contact Angle Of Oil Droplets On Solid Surfaces In Sds Solutions, Samuel Morton, D. Keffer, R. Counce, D. Depaoli, M. Hu

Samuel A Morton

No abstract provided.