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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 radiating potentials of nitrogen

Smyth, Henry De Wolf, January 1900 (has links)
Thesis (Ph. D.)--Princeton University, 1921. / "Reprinted from the Physical review, n. s., vol. XIV, no. 5, November, 1919."
12

Triple differential measurements of single and multiple ionization of argon by electron and positron impact

Gavin, Jared Martin, January 2009 (has links) (PDF)
Thesis (Ph. D.)--Missouri University of Science and Technology, 2009. / Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed May 4, 2009) Includes bibliographical references (p. 78-82).
13

Ionization and photo-electric properties of vapors of alkali metals

Anderson, Samuel Herbert, January 1900 (has links)
Thesis (Ph. D.)--University of Illinois, 1912. / "Reprinted from the Physical Review, vol. XXXV, no. 4, October, 1912."
14

A Verification of the theory of Brownian movements and a direct determination of the value of NE for gaseous ionization

Fletcher, Harvey, January 1911 (has links)
Thesis (Ph. D.)--University of Chicago, 1911. / "Reprinted from the Physical review, vol. XXXIII, no. 2, August, 1911." Includes bibliographical references.
15

Experiments on the scattering of electrons by ionized mercury vapor

Dittmer, Arthur Frederick, January 1900 (has links)
Thesis (Ph. D.)--Princeton University, 1926. / Reprinted from the Physical review, v. 28, September 1926.
16

The radiating potentials of nitrogen ...

Smyth, Henry De Wolf, January 1900 (has links)
Thesis (Ph. D.)--Princeton University, 1921. / "Reprinted from the Physical review, n. s., vol. XIV, no. 5, November, 1919."
17

Theoretical studies of atomic and gas dynamical processes in astrophysical plasmas

Daltabuit, Enrique, January 1972 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1972. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
18

A Verification of the theory of Brownian movements and a direct determination of the value of NE for gaseous ionization

Fletcher, Harvey, January 1911 (has links)
Thesis (Ph. D.)--University of Chicago, 1911. / "Reprinted from the Physical review, vol. XXXIII, no. 2, August, 1911." Includes bibliographical references.
19

A Verification of the theory of Brownian movements and a direct determination of the value of NE for gaseous ionization /

Fletcher, Harvey, January 1911 (has links)
Thesis (Ph. D.)--University of Chicago, 1911. / "Reprinted from the Physical review, vol. XXXIII, no. 2, August, 1911." Includes bibliographical references. Also available on the Internet.
20

Precursor ionization

Whelan, Patrick James Thomas Aquinas January 1964 (has links)
The preionization of a shock tube's gas before the shock passes through it is called the precursor effect. An experimental and theoretical study has been carried out on precursor ionization in an electromagnetic shock tube. The precursor ionization was detected with different types of electric probes and also with photoraaltipliers. Extensive experiments indicated that the ionization was not due to diffusion of particles from the discharge in the shock tube driver. The ionization is primarily caused by radiation from the discharge of wavelengths less than 2000 Å. Radiation from the shock front makes a negligible contribution to the ionization. Langmuir double probe measurements indicated that the gas was about 0.1% ionized and that the electrons in the precursor were not in thermal equilibrium with the gas atoms and ions. The time interval between detection of ionization at two stations was independent of the shock tube gas (air, argon, helium), and corresponded to a propagation speed greater than 1/20 the speed of light. The precursor had a main component lasting about 50 microseconds with ionization proportional to the square of the discharge current. There was also a weaker component which lasted for about 500 microseconds. The experimental results can be understood in terms of a theoretical model based on black body radiation. Considering the driver to act as an infinite slab radiator, whose temperature is a function of the discharge parameters, an expression is derived for the number of photons emitted in some frequency interval. Assuming the electron density to be proportional to radiation absorption from such a radiator, the electron density variation with distance from the driver can be adequately understood. When the shock tube is considered to behave as a transmission line, whose resistance per unit length is proportional to the electron density, one can explain the variation of the shock tube's gas potential both with distance from the driver and with time. / Science, Faculty of / Physics and Astronomy, Department of / Graduate

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