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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.
11

The Vacuum-tube bridge.

Whittaker, Clyde A. Unknown Date (has links)
No description available.
12

Finite element analysis of a defective induction motor

Obiozor, Clarence Nwabunwanne. January 1987 (has links)
Thesis (Ph. D.)--Ohio University, June, 1987. / Title from PDF t.p.
13

The crystal counter a new instrument in nuclear physics ...

Heerden, Pieter Jacobus van. January 1945 (has links)
Proefschrift--Utrecht. / Summaries in English, French, German and Dutch. Bibliography: p. [81]-82.
14

The crystal counter a new instrument in nuclear physics ...

Heerden, Pieter Jacobus van. January 1945 (has links)
Proefschrift--Utrecht. / Summaries in English, French, German and Dutch. Bibliography: p. [81]-82.
15

The measurement of surface impedance at microwave frequencies

Radtke, Joseph, January 1968 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1968. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
16

A standard of low power factor,

Berberich, Leo Joseph, Kouwenhoven, William Bennett, January 1900 (has links)
Thesis (DR. ENG.)--Johns Hopkins university, 1931. / Cover title. Vita. By W.B. Kouwenhoven and Leo J. Berberich. "Presented at the Winter convention of the A.I.E.E., New York, N.Y., January 23-27, 1933." Bibliography: p. 7.
17

The development of methods and apparatus for the precise measurement of electrical conductivities with especial attention to the redetermination of standard reference values

Thompson, Robert Deane, January 1936 (has links)
Thesis (Ph. D.)--University of Michigan, 1937. / Lithoprinted. Errata slip attached to front fly-leaf. Bibliography: leaves 106-107.
18

Electrical impedance measurements of the uterine cervix in pregnancy

O'Connell, Michael Patrick January 2002 (has links)
This is the first time that electrical impedance studies have been performed on the pregnant cervix. In this thesis the following has been demonstrated: 1. An inter-observer variability in resistivity readings, initially of the order of 20%, but decreasing to 1% once proficiency with the technique was established. 2. An intra-observer variability in resistivity readings of less than 15% in 94% of cases using the 5.5mm probe and 90% when using the 8mm probe. 3. A degree of heterogeneity in the pregnant cervix as attested to by the differences in resistivity measurements on different sites on the cervix. Some of these changes were partly due to technical difficulties. Nevertheless there appeared to be an increase in extracellular resistivity measurements between the anterior and posterior lips of the external cervical os. 4. A positive correlation between the resistivity measurements and gestational age using the 5.5mm probe. No significant correlations were identified between resistivity readings and both parity and maternal age. 5. A statistically significant difference in resistivity readings when comparing the non-pregnant and pregnant cervix. The change in readings was in a direction which reflected the increase in tissue hydration described by others. 6. A statistically significant difference between readings for ripe and unripe cervices at the time of induction of labour, with a fall in extracellular resistivity with increasing favourability as assessed by the Bishop score. This was accompanied by an increase in intracellular resistivity with increasing cervical favourability. The effect of prostaglandin administration on the pregnant cervix demonstrated a decrease in extracellular resistivity and an increase in intracellular resistivity associated with the cervical ripening process. Whilst the results were neither of statistical nor of clinical significance, they were nevertheless in the direction predicted. 7. A statistically significant correlation between extracellular resistivity and interval to delivery using the 8mm probe. 8. A new investigative modality that had high patient acceptability. To date the findings demonstrated in this thesis conceptually agree with the literature on the pregnant cervix. Thus it is imperative to continue with further studies of this new investigative modality.
19

Geotechnical properties of soils using electrical measurements

Bathe, Abhijit. January 2005 (has links)
Thesis (M.S.)--Ohio University, November, 2005. / Title from PDF t.p. Includes bibliographical references (leaves 126-131)
20

The development of methods and apparatus for the precise measurement of electrical conductivities with especial attention to the redetermination of standard reference values

Thompson, Robert Deane, January 1936 (has links)
Thesis (Ph. D.)--University of Michigan, 1937. / Lithoprinted. Errata slip attached to front fly-leaf. Bibliography: leaves 106-107.

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