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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Fast algorithm on tomography.

January 1997 (has links)
by Chun-pong Cheung. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1997. / Includes bibliographical references (leaves 48-51). / Chapter Chapter 1 --- INTRODUCTION --- p.1 / Chapter §.1.1 --- Toeplitz and Circulant Matrix --- p.1 / Chapter §1.2 --- Conjugate Gradient Method --- p.5 / Chapter §1.3 --- Outline of the Thesis --- p.9 / Chapter Chapter 2 --- INVERSE PROBLEM --- p.11 / Chapter §2.1 --- Inverse Problem --- p.11 / Chapter §2.2 --- Tikhonov Regularization --- p.12 / Chapter Chapter 3 --- FAST ALGORITHM ON THERMAL TOMOGRAPHY --- p.14 / Chapter §3.1 --- Introduction --- p.15 / Chapter §3.2 --- Linearization --- p.15 / Chapter §3.3 --- Regularization by the Identity Operator --- p.17 / Chapter §3.4 --- Regularization by the Laplacian Operator --- p.18 / Chapter §3.5 --- Preconditioning with the Laplacian --- p.21 / Chapter Chapter 4 --- COMPUTERIZED TOMOGRAPHY SCAN --- p.27 / Chapter §4.1 --- Projection Problem --- p.27 / Chapter §4.2 --- Radon Transform --- p.29 / Chapter §4.3 --- Reformulation of Projection Problem --- p.31 / Chapter §4.4 --- Numerical Experiments --- p.35 / Chapter §4.5 --- Sirhplification of Formula --- p.41 / References --- p.48
2

Restricted measurements for the X-ray transform /

Courdurier, Matias. January 2007 (has links)
Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (p. 47-51).
3

Geometric Tomography Via Conic Sections

Sacco, Joseph Unknown Date
No description available.
4

ON THE RECONSTRUCTION OF BODIES FROM THEIR PROJECTIONS OR SECTIONS

Myroshnychenko, Sergii 04 August 2017 (has links)
No description available.
5

Automated selection and entry of computed tomography data in finite element modelling of the human femur /

Greening, Dawna Rae, January 1998 (has links)
Thesis (M. Eng.), Memorial University of Newfoundland, 1999. / Bibliography: leaves 118-119.
6

THE SOLUTION OF ILL-POSED SYSTEMS OF LINEAR EQUATIONS IN THE PRESENCE OF NOISE, WITH APPLICATIONS IN GEOTOMOGRAPHY.

Lyon, Charles Crosby. January 1984 (has links)
No description available.
7

Sonar transforms /

Beltukov, Aleksei. January 2004 (has links)
Thesis (Ph.D.)--Tufts University, 2004. / Adviser: Eric Todd Quinto. Submitted to the Dept. of Mathematics. Includes bibliographical references (leaves 282-290). Access restricted to members of the Tufts University community. Also available via the World Wide Web;
8

Unique determination of acoustic properties from thermoacoustic data /

Hickmann, Kyle Scott. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2011. / Printout. Includes bibliographical references (leaves 182-187). Also available on the World Wide Web.
9

A Radon Space Approach To Multiresolution Tomographic Reconstruction And Multiscale Edge Detection Using Wavelets

Goel, Anurag 11 1900 (has links) (PDF)
No description available.
10

Multi-scale analysis of morphology, mechanics, and composition of collagen in murine osteogenesis imperfecta

Bart, Zachary Ryan 06 November 2013 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / Osteogenesis imperfecta is a rare congenital disease commonly characterized by brittle bones caused by mutations in the genes encoding Type I collagen, the single most abundant protein produced by the body. The murine model (oim) exists as a natural mutation of this protein, converting its heterotrimeric structure of two Col1a1 molecules and a single Col1a2 molecule into homotrimers composed of only the former. This defect impacts bone mechanical integrity, greatly weakening their structure. Femurs from male wild type (WT), heterozygous (oim/+), and homozygous (oim/oim) mice, all at 12 weeks of age, were assessed using assays at multiple length scales with minimal sample processing to ensure a near-physiological state. Atomic force microscopy (AFM) demonstrated detectable differences in the organization of collagen at the nanometer scale that may partially attribute to alterations in material and structural behavior obtained through mechanical testing and reference point indentation (RPI). Changes in geometric and chemical structure through the use of µ-Computed Tomography and Raman spectroscopy respectively indicate a smaller, brittle phenotype caused by oim. Changes within the periodic D-spacing of collagen point towards a reduced mineral nucleation site, supported by reduced mineral crystallinity, resulting in altered material and structural behavior in oim/oim mice. Multi-scale analyses of this nature offer much in assessing how molecular changes can compound to create a degraded, brittle phenotype.

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