Global ETD Search

11	Numerical methods in the direct interpretation of marine magnetic anomalies Emilia, David Arthur 16 December 1968 (has links) Graduation date: 1969 Magnetic fields
12	Downward continuation and transformation of potential fields with application to marine magnetic anomalies Eggers, Dwight Edward 17 July 1973 (has links) The problem of downward continuation of potential fields is being considered. The basic approach involves computation in real space using a power series expansion. The computation of the derivatives required for evaluating the series is carried out on the basis of two approximation methods, viz. (1) polynomial method, and (2) application of band-limited functions. The band-limited approach is also applied to the problem of transforming the direction of the source magnetization, that is, to the problem of transforming a given magnetic field to the pole. The quality of these results is considered in two ways: (1) the frequency response of the derived convolution coefficients are compared with the analogous system functions of the linear filter method; and (2) the methods are applied to artificial magnetic test cases. Good quality results are obtained using these methods. The methods are also applied to a portion of field data. / Graduation date: 1974 Magnetic anomalies
13	2 and 3 Dimensional Systems Studied Using X-ray Crystallographic Techniques Eskildsen, Morten Ring 08 January 1999 (has links) No description available. magnetic flux
14	Ordering Classification of Colummnar Lattices in Magnetic Fluid Thin Film Subject to Perpendicular Fields Lu, Chun-Kaung 01 July 2002 (has links) Magnetic fluid aggregates magnetic columns when a perpendicular magnetic field is applied. The arrangement of magnetic columns forms hexagonal structures in equilibrium state. We study the ordering classification of colummnar lattices with time elapsed. The perpendicular magnetic field can be categorized as AC and DC fields. To couduct experiments, AC filed changes frequency, and DC field changes the final intensity of magnetice field. We use the bond-orientation correlation function, FFT, and Delaunay triangulation plots of the images to analyze the data which is obtained from experiments. Through digital image processing techniques, we can also determine positions, displacements,and average speed of magnetic columns to undersand the two-dimensional ordering processes, while applying megnetic fields. magnetic fluid
15	Finite temperature effects in magnetic materials model and ab initio studies / Wysocki, Aleksander L. January 2009 (has links) Thesis (Ph.D.)--University of Nebraska-Lincoln, 2009. / Title from title screen (site viewed March 2, 2010). PDF text: 108 p. : col. ill. ; 2 Mb. UMI publication number: AAT 3386605. Includes bibliographical references. Also available in microfilm and microfiche formats. Magnetic materials
16	Design of a self-saturating magnetic amplifier utilizing high frequency excitation Perkins, Brayton Mills, 1924- January 1956 (has links) No description available. Magnetic amplifiers.
17	Minimum power controller design of a magnetic bearing Cheung, Sing Nan, 1946- January 1974 (has links) No description available. Magnetic bearings.
18	A passive secondary suspension for a magnetically levitated vehicle / Guillemette, Raymond January 1977 (has links) No description available. Magnetic suspension.
19	Magnetic separation of strongly magnetic particles using alternating field Goodluck, Olufemi W. (Olufemi Waheed) January 1986 (has links) No description available. Magnetic separation
20	Local moment exchange in lead-tin telluride alloys containing manganese Morris, Anne Patricia. January 1979 (has links) No description available. Magnetic semiconductors.

Search results