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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

Ueber eine specielle conforme Abbildung der Flächen constanten Krümmungsmasses auf die Ebene mit einem Anhange, enthaltend die Literatur über die Flächen constanten Krümmungsmasses /

Busse, Friedrich, January 1896 (has links)
Thesis (doctoral)--Friedrich-Wilhelms-Universität zu Berlin, 1896. / Vita. Includes bibliographical references (p. 23-31).
2

Surfaces characterized by certain special properties of their directrix congruences ...

Yeaton, Chester Henry, January 1916 (has links)
Thesis (Ph. D.)--University of Chicago, 1915. / Vita. "Reprinted from Annali di matematica, serie III, tomo XXVI, 1916." Includes bibliographical references.
3

Ueber die conforme Abbildung mehrfach zusammenhängender ebner Flächen

Schottky, Friedrich, January 1900 (has links)
Thesis (doctoral)--Friedrich-Wilhelms-Universität zu Berlin, 1875. / Vita.
4

Surfaces characterized by certain special properties of their directrix congruences ... /

Yeaton, Chester Henry, January 1916 (has links)
Thesis (Ph. D.)--University of Chicago, 1915. / Vita. "Reprinted from Annali di matematica, serie III, tomo XXVI, 1916." Includes bibliographical references. Also available on the Internet.
5

Analysis of microstrip antenna on spherical and cylindrical surface.

January 1994 (has links)
by Tam Wai Yip. / Thesis (Ph.D.)--Chinese University of Hong Kong, 1994. / Includes bibliographical references (leaves 139-145). / Acknowledgments --- p.iii / Abstract --- p.iv / List of Symbols --- p.xi / List of Figures --- p.xvii / Chapter 1. --- Introduction / Chapter 1.1 --- Brief Review --- p.1 / Chapter 1.2 --- Statement of Problem --- p.5 / Chapter 1.3 --- Organization --- p.6 / Chapter 2. --- Spherical Circular and Annular Microstrip Antenna / Chapter 2.1 --- Introduction --- p.9 / Chapter 2.2 --- Vector Legendre Series Formulation --- p.10 / Chapter 2.3 --- Galerkin's Procedure --- p.17 / Chapter 2.4 --- Input Impedance --- p.20 / Chapter 2.5 --- Far Zone Radiation Pattern --- p.20 / Chapter 2.6 --- Radiation Resistance using Electric Surface Current Model --- p.22 / Chapter 2.7 --- Numerical Examples --- p.24 / Chapter 2.7.1 --- Input Impedance --- p.25 / Chapter 2.7.2 --- Resonance Radiation Resistance --- p.29 / Chapter 2.7.3 --- Far Zone Radiation Pattern --- p.35 / Chapter 2.8 --- Summary --- p.41 / Chapter 3. --- Cylindrical Rectangular Microstrip Antenna with Coplanar Elements / Chapter 3.1 --- Introduction --- p.42 / Chapter 3.2 --- Integral Equation Formulation --- p.44 / Chapter 3.3 --- Input Impedance with Coplanar Parasitic Elements --- p.50 / Chapter 3.4 --- Far Zone Radiation Pattern --- p.51 / Chapter 3.5 --- Mutual Coupling between Antennas --- p.52 / Chapter 3.6 --- Numerical Examples --- p.56 / Chapter 3.6.1 --- Input Impedance with Coplanar Parasitic Elements --- p.56 / Chapter 3.6.2 --- Mutual Coupling between Antennas --- p.76 / Chapter 3.7 --- Summary --- p.85 / Chapter 4. --- Aperture Coupled Rectangular Cylindrical Microstrip Antenna / Chapter 4.1 --- Introduction --- p.86 / Chapter 4.2 --- Integral Equation Formulation using Reciprocity Method --- p.89 / Chapter 4.3 --- Input Impedance of a Stripline Feed Aperture Coupled Microstrip Antenna --- p.99 / Chapter 4.4 --- Input Impedance of a Microstrip Line Feed Aperture Coupled Microstrip Antenna --- p.100 / Chapter 4.5 --- Numerical Examples --- p.101 / Chapter 4.5.1 --- Stripline Feed Antennas --- p.101 / Chapter 4.5.2 --- Microstrip Line Feed Antennas --- p.110 / Chapter 4.6 --- Summary --- p.115 / Chapter 5. --- Green's Functions for a Electric Current on a Dielectric Coated Sphere / Chapter 5.1 --- Expansion of Fields using Spherical Harmonics --- p.116 / Chapter 5.2 --- Green's Functions in Spectral Domain --- p.119 / Chapter 6. --- Green's Functions for a Current on a Dielectric Coated Cylinder / Chapter 6.1 --- Expansion of Fields with Auxiliary Potentials --- p.121 / Chapter 6.2 --- Green's Functions in Spectral Domain --- p.125 / Chapter 7. --- Green's Functions for a Current inside a Triple Layered Cylinder / Chapter 7.1 --- Expansion of Fields with Auxiliary Potentials --- p.129 / Chapter 7.2 --- Green's Functions in Spectral Domain --- p.132 / Chapter 8. --- Conclusions and Recommendations / Chapter 8.1 --- Conclusions --- p.137 / Chapter 8.2 --- Recommendations for Future Research --- p.138 / References --- p.139 / Appendices / Chapter A. --- Vector Legendre Series --- p.146 / Chapter B. --- Surface Current for Spherical Microstrip Antenna --- p.149 / Chapter C. --- Modified Reciprocity Theorem --- p.152 / Chapter D. --- Spherical Bessel Functions and Legendre Functions --- p.154 / Chapter E. --- Approximated Green's functions Gθθ and Gφφ for large n --- p.157 / Chapter F. --- Current Distributions for Cylindrical Rectangular Microstrip Antenna --- p.163 / Chapter G. --- "Evaluation of Zijmn, V1imand V2im" --- p.165 / Chapter H. --- Deformation of Integration of Path --- p.169 / Chapter I. --- Hankel Functions --- p.170 / Chapter J. --- Current Distributions for Aperture Coupled Antenna --- p.172 / Chapter K. --- "Evaluation of ΔV,Ye1, Ye2, Yai , Vi and Zij" --- p.176 / Chapter L. --- Program Listing for stripline Feed Aperture Coupled Microstrip Antenna --- p.178
6

Image points and Riemann's theorem

Gerst, Francis Joseph, January 1925 (has links)
Thesis (Ph. D.)--Johns Hopkins University, 1925. / Vita.
7

Image points and Riemann's theorem

Gerst, Francis Joseph, January 1925 (has links)
Thesis (Ph. D.)--Johns Hopkins University, 1925. / Vita.
8

Data acquisition systems for three-dimensional representation and analysis of surface topography and surface temperatures in tribological processes

Sankar, Jayaram January 1986 (has links)
Data acquisition systems were developed for three-dimensional representation and analysis of surface topography and surface temperatures in tribological processes. 3-D information about the topography of surfaces was obtained from parallel traverses of the stylus of a Talysurf 4 profilometer. MOVIE.BYU and Tektronix graphics terminals were used to display the models of the surfaces. Surface temperatures generated by friction were measured using a Barnes RM-2A Infrared Radiometric Microscope. The sliding system consisted of a pin (or sphere)-on-disc mechanism. An optically flat, transparent sapphire disc was used as the rotating member. A computerized data acquisition system (consisting of an IBM PC a.nd a Data Translation 2805 I/O system) was interfaced with the IR microscope and its accessories to help scan the region of contact and record data to generate maps of the radiance distribution over the scan-area. MOVIE.BYU and Tektronix graphics terminals were used to display the radiance maps in three dimensions. A method for studying fast thermal transients in the sliding system is suggested and demonstrated. This method uses the unfiltered signal from the IR microscope to detect the transients. Some simple tests were conducted to observe the general performance of the systems mentioned above. The test results along with suggestions for possible areas of improvement are discussed. / Master of Engineering / incomplete_metadata
9

Surface reconstruction and display from range and color data /

Pulli, Kari. January 1997 (has links)
Thesis (Ph. D.)--University of Washington, 1997. / Vita. Includes bibliographical references (p. [117]-124).
10

Projection, design, and representation of curves on B-spline surfaces /

Tjung, Jie Wen, January 1993 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Includes bibliographical references (leaves 95-100). Also available via the Internet.

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