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 1327 for “"Electric Field"”.
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Electric field imaging
… and through technology. This thesis introduces Electric Field Imaging, a new physical channel and inference framework for machine perception of human action. Though electric field sensing is an important sensory modality for several species of fish, it has not been seriously explored as a …
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Toward electric field tomography
Thesis (M.S.)--Massachusetts Institute of Technology, Program in Media Arts & Sciences, 1995.
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Electric field mill for the simultaneous measurement of electric field strength and ion current diensity
… be carried out, it is necessary to measure the electrical environment ofHVDC transmission lines accurately. The electrical environment ofHVDC transmission lines is characterised by: Electric field strength E [Vim];Ion current density J [A/m²] ;Space charge density p [C/m³ ]. Typical values …
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Electric Field Effects on Optical-Spectra
Made available in DSpace on 2014-12-10T23:01:32Z (GMT). No. of bitstreams: 1 7317333.pdf: 2993149 bytes, checksum: 22ed65d038b073568c95f0f32cc6e6c6 (MD5) Previous issue date: 1972
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Electric field gradients in copper alloys
Submitted by William Weathers (weathrs2@illinois.edu) on 2012-03-02T21:38:42Z No. of bitstreams: 1 1974_whalley.pdf: 2101323 bytes, checksum: 6c2a3629b0bc84f49541dc7330f6f81b (MD5)
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ELECTRIC FIELD IONIZATION OF SODIUM RYDBERG ATOMS
… bound to the atomic core that a relatively small electric field may cause the electron to be stripped from the atom. The field strength at which this ionization happens is strongly dependent on the state of the Rydberg atom. Pulsed electric field ionization serves, therefore, not only as a means …
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Electric field effect on magnetic interface phenomena
L'abstract è presente nell'allegato / the abstract is in the attachment
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Plasma oscillations in an applied electric field.
… Institute of Technology, Department of Electrical Engineering, 1972
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Pulsed electric field induced stress in plant systems
… gepulster elektrischer Felder (engl. Pulsed electric fields PEF) in der Nach-Ernte Lagerung untersucht. Veränderungen im Gesamtpolyphenolgehalt, in der Aktivität und Konzentration ausgewählter Enzyme sowie der Einfluss auf die Permeabilisierung von Zellmembranen wurden in der Reaktionszeit …
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THUNDERCLOUD ELECTRIC FIELD SOUNDINGS WITH INSTRUMENTED FREE BALLOONS
A Balloon Electric Field Sensor, released into a thunderstorm at Langmuir Laboratory on 12 August 1976, measured the electric vector and wind profile along its track. During a major portion of its ascent, the instrument was in an intense updraft. We infer a maximum vertical wind component of about …
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PARALLEL ELECTRIC FIELD ON AURORAL MAGNETIC FIELD LINES
The interaction of Birkeland (magnetic-field-aligned) current carriers and the Earth's magnetic field results in electrostatic potential drops along magnetic field lines. The statistical distributions of the field-aligned potential difference (phi)(,(PARLL)) were determined from the energy spectra …
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Electric field-assisted immobilization and alignment of biomolecules
In this dissertation, an electric field-assisted method was developed and applied to achieve immobilization and alignment of biomolecules on metal electrodes in a simple one-step experiment. Neither modifications of the biomolecule nor of the electrodes were needed. The two major electrokinetic …
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Shielded Metal Waveguides with Uniform Electric Field Distributions
… focuses on achieving uniformly distributed electric field within a metal waveguide. A rectangular waveguide centrally loaded with a dielectric product is investigated rst since rectangular waveguides are widely used and can be easily made as exposure chambers and applicators. Then a …
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A MEMS-based, high-resolution Electric-Field meter
… such as accelerometers and gyroscopes, known electrical waveforms are applied to a modulating capacitive element to determine an unknown deflection. However, the inverse of this scheme can also be exploited - the capacitive element can be deterministically modulated to measure an electrostatic …
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Particle Manipulation Using Electric Field Gradients in Microdevices
… within a liquid in response to an external electric field. Using the intrinsic electrical properties of bacteria and of breast cancer cells, electrokinetics can be used to manipulate these particles for two different types of applications: tissue engineering and breast cancer detection. The …
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Electric field modeling of outdoor insulator for optimized performance
This project presents the study of electric field stress along the surface of a 132 kV ceramic post insulator. Insulators are among the important devices of the electric power transmission systems. They are used to support and separate conductors at high voltage. Different insulator shapes have …
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Optimisation of insulator design for improved electric field performance
… insulators. One of the factors governing the electrical performance of polymeric insulator is characterized by its field distribution along their length. This thesis has been made to analyse insulator performance via their electric field distribution. By improving the electric field …
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Electric field quenching of single-walled carbon nanotube photoluminescence
The effect of an electric field on the photoluminescence of single-walled carbon nanotubes was investigated. Individual SWNTs embedded in polymeric film were deposited on microscope slides with electrodes. The fluorescence intensity and spectra of single semiconducting SWNTs were acquired. When …
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Electric Field Gradient Focusing-UV Detection for Protein Analysis
<p>Electric field gradient focusing (EFGF) utilizes a hydrodynamic flow and an electric field gradient to focus and concentrate charged analytes and order them in a separation channel according to electrophoretic mobility. Elution can be achieved by decreasing the applied voltage or increasing the …
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The Convective Transport From Drops in an Electric Field
… of heat and mass transfer from a drop in an electric field have, to data, dealt only with steady electric fields. This study extends the results of such analyses, for both high and low Peclet number, to corresponding solutions for transport in an alternating electric field. The low Peclet …
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