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 185 for “"Electromagnetic waves"”.
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Velocity modulation of electromagnetic waves
Thesis: M.S., Massachusetts Institute of Technology, Department of Electrical Engineering, 1956
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Transient Electromagnetic Waves in Nonlinear Media
… is concerned with the propagation of transient electromagnetic waves in nonlinear media. It consists of a General Introduction and five scientific papers. The General Introduction gives a broad overview of nonlinear electromagnetic phenomena. The emphasis is on the representation of the …
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Sub-Diffraction Imaging using Superoscillatory Electromagnetic Waves
… the diffraction limit with superoscillatory electromagnetic waves. It begins with a survey on sub-diffraction imaging, which motivates the need for a new sub-diffraction imaging device which is free from drawbacks in devices which have heretofore been proposed. This work addresses this need …
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Electromagnetic waves and instabilities in relativistic plasma
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Nuclear Engineering, 1987
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Soil and Site Characterization Using Electromagnetic Waves
… which also dictate the soil's responses in an electromagnetic field. As a nondestructive technique, the electromagnetic property measurement offers a promising approach to characterize earth materials and identify the effects of changes in environments. However, despite many investigations in …
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Backscatter of electromagnetic waves from a rough layer
Call number: LD2668 .T4 1966 K96
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Electromagnetic waves in nonlinear and linear magnetooptic metamaterials
… the world of metamaterials, and the way in whichwaves propagate within them. It begins with an introduction to metamaterials, thatincludes a generic definition and a fascinating array of models are outlined. An emphasisis placed on the nonlinear properties of metamaterials and their soliton …
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Propagation of electromagnetic waves in spatially dispersive inhomogeneous media
… This thesis investigates the behaviour of electromagnetic waves in spatially dispersive, inhomogeneous media. In particular, two types of inhomogeneity are considered: media formed from two homogeneous regions with a common interface, and those with a periodic structure. For a material made …
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Propagation and scattering of electromagnetic waves in complex environments
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Radiation and scattering of electromagnetic waves in layered media
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1983.
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Theoretical models for subsurface geophysical probing with electromagnetic waves.
Thesis. 1976. Ph.D.--Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
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Condition assessment of reinforced concrete structures using electromagnetic waves
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1990.
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New Way of Generating Electromagnetic Waves Using Permanent Magnet
… have demonstrated the potential of VLF and ULF electromagnetic (EM) waves for studying brain function and treating neurological conditions. The main challenge is that most VLF and ULF generators are large and power-hungry, making them impractical to use in many applications. As a result, recent …
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The Diffraction of Electromagnetic Waves by Dielectric Steps in Waveguides
Made available in DSpace on 2014-12-08T22:24:49Z (GMT). No. of bitstreams: 1 7021054.pdf: 2400941 bytes, checksum: 7409fc34782117c99973f21d811ec0b8 (MD5) Previous issue date: 1970
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Condition assessment of GFRP-retrofitted concrete cylinders using electromagnetic waves
… through the use of far-field radar measurements (electromagnetic or EM waves). In this development, two far-field monostatic ISAR (inverse synthetic aperture radar) measurement schemes are identified for collecting radar measurements, and the backprojection algorithm is applied for processing …
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Excitation of source electromagnetic waves at microwave frequencies using optical techniques
… efficiencies for the excitation of surface electromagnetic waves (SEW} for both the prism and the grating techniques have been studied experimentally in the microwave frequency range. The grating experiments included studies of the SEW coupling efficiencies as functions of the frequency, the …
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Multiple Scattering of Electromagnetic Waves by Random Scatterers of Finite Size
Made available in DSpace on 2014-12-08T22:23:28Z (GMT). No. of bitstreams: 1 6408412.pdf: 2443210 bytes, checksum: 2b6ac6a50da2334274208ba81be04c15 (MD5) Previous issue date: 1964
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Transmission and radiation of electromagnetic waves in hollow-pipes and horns
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1938.
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2-D Modeling of Electromagnetic Waves with Vibrating Conducting and Dielectric Objects
… provides an analysis of the interaction of electromagnetic pulses with vibrating conducting and dielectric objects. Two-dimensional full-vector Maxwells equations finite-difference time-domain (FDTD) models are employed that include total-field scattered-field incident plane wave source …
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Real time water pipes leak detection using electromagnetic waves for the water industry
This project concerns the use of an electromagnetic sensor for the detection of leaks/cracks in water pipes. As old metal pipes corrode they start to become brittle, resulting in the potential for cracks to appear in the pipes. In addition corrosion can build up resulting in a restricted flow of …
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