Global ETD Search
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 67 for “"projection method"”.
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A system failure detection method -- failure projection method
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1982.
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Information-based projection method for categorical clustering and outlier detection.
Information-based projection method for categorical clustering and outlier detection.
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A time-explicit immersed boundary projection method for thin elastic surfaces and stationary bodies
DSpace SAF Submission Ingestion Package generated from Vireo submission #16604 on 2021-09-16 at 17:06:38
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Development of a multi-scale projection method with immersed boundaries for chemically reactive flows and its application to examine flame stabilization and blow-off mechanisms
… configurations. A second-order immersed boundary method for reacting flow simulations near heat conducting, grid conforming, solid object has been developed. The method is coupled with a block-structured adaptive mesh refinement (SAMR) framework and a semi-implicit operator-split projection …
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Characterizing and Improving the Non-Collaborative and Collaborative Localization Problems
… an improvement to the existing modified parallel projection method (MPPM), the reflected parallel projection method (RPPM). We show that the global minimum to the non-collaborative objective function can nearly always be found using the non-optimal reflected parallel projection method (RPPM). For …
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The Creation of Algorithms Designed for Analyzing Periodic Surfaces of Crystals and Mineralogically Important Sites in Molecular Models of Crystals: Understanding the Electron Density Function Through Visual Examinations of the Curvature and Shape of the Equi-Value Laplacian Surfaces
… algorithms that were created include the Sphere Projection method, the Chicken Wire method, and methods for calculating the curvature at any point on a surface. The Sphere Projection method is best applied to roughly spherical surfaces. A theorem about the "fit" to a sphere determines the …
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AUTOMATIC DETECTION OF FACIAL FEATURES FOR 3D MODEL BASED CODING APPLICATIONS
… can be estimated by using vertical integral projection method. This method is also useful for detection of some feature points such as head top, chin points, eye center, mouth center and nose center. The third step is to extract the accurate center points of eyebrows. The centroid method is …
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Application of pressure-projection algorithms to a sharp projection immersed boundary method for the incompressible Navier-Stokes equations
… second-order accurate sharp immersed boundary projection method with an algebraic structure parallel to the classic fractional step method for the unsteady, incompressible Navier-Stokes equations. While second-order accuracy in time and space is generally achievable for the velocity components, …
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An iterative pressure-correction method for the unsteady incompressible Navier-Stokes Equation
The pressure-correction projection method for the incompressible Navier-Stokes equation is approached as a preconditioned Richardson iterative method for the pressure- Schur complement equation. Typical pressure correction methods perform only one iteration and suffer from a splitting error that …
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Efficient indexing of spatial objects in object-oriented databases
… In this thesis, we proposed two new access methods with improved performance: a projection method and a partition method.
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Galerkin method to model thin free surface flows
… an alternative in the form of a Galerkin-like projection method.
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On Dimensionality Reduction of Data
<p>Random projection method is one of the important tools for the dimensionality reduction of data which can be made efficient with strong error guarantees. In this thesis, we focus on linear transforms of high dimensional data to the low dimensional space satisfying the Johnson-Lindenstrauss …
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Methods For Increasing Domains Of Convergence In Iterative Linear System Solvers
… this thesis, we introduce and improve various methods for increasing the domains of convergence for iterative linear system solvers. We rely on the following three approaches: making the iteration adaptive, or nesting an inner iteration inside of a previously determined outer iteration; using …
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Solution Representation and Indentification for Singular neutral Functional Differential Equations
… Integral Equation. We study the Collocation Method as a projection method for the approximation of solutions for Volterra Integral Equations. Particulary, the possibility of achieving higher order ap- proximations is discussed. Special attention is given to the choice of the projection space …
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Determining Upper Extremity Posture Using a Simplified Marker Configuration for Biomechanical Risk Evaluation during Tool Use
… in multiple directions. The Euler and quaternion methods, which are two commonly used methods for describing joint angles and body segment postures and movement, have great limitations when dealing with upper extremities. The planar projection method has also been used to represent joint angles …
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Contributions to the Analysis of Biochemical Reaction-Diffusion Networks Stability, Analysis, and Numerical Solutions
… in a long cell. Furthermore, we avail of a projection method for partial differential equations to obtain associated ordinary differential equations that will assist on the reduction of the computational load for the numerical solution of a class of reaction diffusion networks. This …
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New feedback design methodologies for large space structures: a multi-criterion optimization approach
… the dissertation, robust control design methodologies are emphasized. Presented in the first part of the dissertation are three new feedback design algorithms: 1) a generalized linear-quadratic regulator (LQR) formulation, 11) a generalized LQR formulation based on Lyapunov stability …
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Preconditioned iterative methods for highly sparse, nonsymmetric, unstructured linear algebra problems
… and unstructured. Several iterative methods which are applicable to nonsymmetric and indefinite problems are applied to a suite of test problems derived from simulations of actual bipolar circuits and to a viscous flow problem. Methods tested include Craig’s method, GMRES(k), …
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Thermal Properties of Indium Nanoparticles and Gold Silicide Formation by Scanning Nanocalorimetry
… by double tilting experiment with stereographic projection method (ex-situ TEM). The composition is proposed to be Au3Si from EDAX. The real-time experiment shows the melting point depression of eutectic and competitive growth between eutectic and Au3Si phase. The composition of the film (i.e., …
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Power Signal Analysis of Channel Current Signal Using HMM-EM and Time Domain FSA
… single molecule kinetics. The HMM-EM level projection method de-noises data, retaining the transitions with very high precision. This approach doesn't require input number of levels. Another advantage is the minimal tuning required. The levels are then identified using Finite State Automata …
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