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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 116 for “"Decomposition method"”.
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The SAS Domain Decomposition Method for Structural Analysis
A new domain decomposition method for the efficient and parallelizable numerical handling of plate bending and three dimensional elasticity problem is developed via the discovery of two special classes of matrices. The first class of matrices, say $A\in{\cal C}\sp{n\times n}$, has the relation A = …
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Multiple part type decomposition method in manufacturing processing line
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M.)--Massachusetts Institute of Technology, Sloan School of Management, Operations Research Center, 2001.
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Characterizing Neurotransmitter Receptor Activation with a Perturbation Based Decomposition Method
… disorders. Single-unit recordings provide a method of measuring postsynaptic potentials in neurons using a microelectrode system, but yield no detailed information regarding the neurotransmitter receptors that contribute to the potential. To determine the types of neurotransmitter receptors …
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Efficient Modeling of the Lithium Ion Cell Using the Proper Orthogonal Decomposition Method
… consuming model.</p> <p> The proper orthogonal decomposition method was also applied to develop an efficient, reduced order electrochemical-thermal model for a lithium ion cell. This model was validated for discharge simulations over a wide range of C rates and various cooling conditions of the …
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Stabilized Finite Elements and a Domain Decomposition Method for First-Order Transient Problems
In the third part, a novel domain decomposition method for first-order transient nonlinear problems is presented. To the author's knowledge the proposed method is the only known robust domain decomposition method for transient problems that enables arbitrary numeric schemes to be coupled with …
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Spectral Integral Method and Spectral Element Method Domain Decomposition Method for Electromagnetic Field Analysis
<p>In this work, we proposed a spectral integral method (SIM)-spectral element method (SEM)- finite element method (FEM) domain decomposition method (DDM) for solving inhomogeneous multi-scale problems. The proposed SIM-SEM-FEM domain decomposition algorithm can efficiently handle problems with …
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Implementation of Novel Group Delay Decomposition Method and Surgical Protocol for Assessing Peripheral Neuropathy
… An accurate reading depends on both the surgical method used to expose the desired nerve without imposing onto it any physical trauma as well as the stimulation protocol used to initiate action potentials. This paper contains the specific steps required to set up the necessary hardware and …
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Implementation and Verification of the Subgroup Decomposition Method in the TITAN 3-D Deterministic Radiation Transport Code
The subgroup decomposition method (SDM) has recently been developed as an improvement over the consistent generalized energy condensation theory for treatment of the energy variable in deterministic particle transport problems. By explicitly preserving reaction rates of the fine-group energy …
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Otimização na reconfiguração de cadeias de suprimentos de quatro níveis: o caso da soja no Brasil
In this thesis a new method of decomposing a four-level supply chain is developed to optimize reconfiguration in soybean grain export chains in Brazil. The decomposition method solves a large and complex problem in infrastructure and operational logistics in a four-level supply chain with two …
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Numerical solution and spectrum of boundary-domain integral equations
… (discretised BDIE/BDIDE) are solved by the LU decomposition method and Neumann iterations. Convergence of the iterative method is analyzed in relation with the eigen-values of the corresponding discrete BDIE/BDIDE operators obtained numerically. The systems obtained from LBDIE/LBDIDE …
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A node-based approach to charm-FFT
… environment. In this thesis, an alternative method to an existing Parallel 3D FFT library was explored. The FFT library, Charm-FFT empowered by Charm++, was redesigned to utilize larger number of nodes while aiming to reduce the number of necessary communications between its components during …
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Investigation of explicit finite-element time-domain methods and modeling of dispersive media and 3D high-speed circuits
… this dissertation, efficient time-domain domain decomposition algorithms are investigated, compared, and further enhanced, and a new domain decomposition method is proposed based on the knowledge of existing ones. First, several explicit domain decomposition methods, including the dual-field …
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Exploring Changes in Poverty in Zimbabwe between 1995 and 2001 using Parametric and Nonparametric Quantile Regression Decomposition Techniques
… extends Machado and Mata's parametric quantile decomposition method and a similar nonparametric technique to explore changes in welfare in Zimbabwe between 1995 and 2001. These methods allow us to construct a counterfactual distribution in order to decompose the shift into the part due to …
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Time series analysis of RTC Great Lakes recruit graduate data
… and the U. S. Navy. First the multiplicative decomposition method is employed to produce a model. As an alternative the autoregressive integrated moving average (ARIMA) process is used to describe the data. In both instances, satisfactory forecasting results are attained.
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Multi-Time-Step Domain Decomposition and Coupling Methods for Non-Linear Structural Dynamics
The present multi-time-step coupling method is based on a dual Schur domain decomposition method that uses Lagrange multipliers to enforce the continuity of the solution across the interfaces between the subdomains. The subdomains can be integrated with different time steps and/or time stepping …
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Part I. Aromatic Fluorinations for Fluorine-18 Labeling of Estrogens. Part Ii. Bromodesilylation-Potential Method for Regiospecific Radiobromination of Aromatic Systems. Part Iii. Synthesis of Isohexestrol and Isohexestrol Derivatives
Two aromatic fluorination methods, the decomposition of aryl azides and the decomposition of aryl triazenes, were investigated as methods potentially suitable for fluorine-18 labeling of estrogens. The aryl triazene method gives moderate yields in many systems, but fails with ortho methoxy or …
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The investigation of style indices and active portfolio construction on the JSE
… equity funds using Sharpe's (1988, 1992) style decomposition method. Finally, a 'toolkit' of selected style indices are employed as building blocks to construct mean-variance and mean-tracking error optimal portfolios at low cost.
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Optimization of slender space trusses utilizing a continuum model
A method for the incorporation of continuum modeling in the optimization of large discrete structures is presented. The use of a continuum model facilitates decomposition of optimization problems and augments the scope and applicability of the multilevel decomposition method. This new concept is …
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Solving the volterra integral form of the lane emden equations by homotopy perturbation method and adomian decompostion method
In this research, Homotopy Perturbation Method(HPM) and Adomian Decomposition Method(ADM), as two known methods, is analyzed for solving Volterra integral from of the Lane-Emden equations. The result from both method are compared with the exact solution. It has been shown that these two methods are …
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Experimental determination of the impulse response function for elastic vibrating systems
An experimental method for determination and analysis of the impulse response function of linear, elastic, vibrating systems is developed. A deconvolution method is developed for estimation of the impulse response function. The estimator is shown to be unbiased in the presence of measurement noise. …
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