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Effect of high pressure on the rates of electron exchange reactions / William Harry Jolley.Jolley, W.H. January 1970 (has links)
193 p. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Three electron exchange reactions, under high pressure, were studied, using radioisotope tracers to follow the reactions. / Thesis (Ph.D.)--University of Adelaide, Dept. of Physical and Inorganic Chemistry, 1970
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Effect of high pressure on the rates of electron exchange reactions /Jolley, W.H. January 1970 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Dept. of Physical and Inorganic Chemistry, 1970.
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Charge changing processes in the formation of fast H⁰ atomsAnderson, Carl John. January 1979 (has links)
Thesis--University of Wisconsin--Madison. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 163-167).
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Multiple electron capture at high velocities using the Bates potential in the independent electron approximationTheisen, Terry Cagney January 2011 (has links)
Digitized by Kansas Correctional Industries
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THEORETICAL ANALYSIS FOR THE DEVELOPMENT OF A CHARGE-EXCHANGE X-RAY LASERBousek, Ronald Richard, 1941- January 1976 (has links)
No description available.
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The joy of CEX sharpening the (t,³He) probe at 345 MeV for the charge-exchange knife drawer /Howard, Meredith E., January 2008 (has links)
Thesis (Ph. D.)--Ohio State University, 2008. / Title from first page of PDF file. Includes bibliographical references (p. 125-131).
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Exploring electron transfer in myoglobin-based transistorsLi, Debin, January 2009 (has links)
Thesis (Ph. D.)--West Virginia University, 2009. / Title from document title page. Document formatted into pages; contains xiii, 104 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 99-104).
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The effect of the electrode composition on electron transfer through an electroactive monolayerYoon, Kwansik. January 1999 (has links)
Thesis (M.S.)--West Virginia University, 1999. / Title from document title page. Document formatted into pages; contains xi, 96 p. : ill. (some col.) Includes abstract. Includes bibliographical references.
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The pion double charge exchange reaction on ¹⁸O at 50 MeVHessey, Nigel P. January 1985 (has links)
This thesis discusses the pion double charge exchange (DCX) reaction ¹⁸0(π⁺,π⁻)¹⁸Ne at 50 MeV. Transitions to the ground state of ¹⁸Ne, which is the double-isobaric-analogue state (DIAS) of ¹⁸0, have been isolated. The differential cross sections for DIAS transitions have been measured at 6 scattering angles from 18.2° to 122.6°. The experiment was performed at TRIUMF in December 1984 using the QQD low energy pion spectrometer [26].
The differential cross section angular distribution is forward peaked, falling from 4.7±0.5 μb/sr at 0° (by extrapolation) to 0.61±0.11 μb/sr at 122.6°. The total (angle-integrated) cross section is 16.2±1.2 μb.
DCX measurements are expected to give information on nuclear structure that is hard to obtain by other reactions. This information includes short range correlations and neutron-proton density differences. However, before such information can be extracted the mechanism for DCX must be understood. The aim of this experiment was to provide more data to test the various theories of the DCX mechanisms. The implications of the results for several theories of DCX are discussed.
The forward peaking of DCX angular distributions at 50 MeV was unexpected. 50 MeV single charge exchange (SCX) angular distributions are forward dipped e.g. [14], a result of the cancellation of the 0° s and p wave scattering amplitudes for the reaction p(π⁺,π⁰)n. Early DCX calculations were based on the simple sequential mechanism. This assumes DCX proceeds via 2 successive SCX reactions, with the isobaric analogue as the intermediate state. These calculations predicted forward dipping and small cross sections for DCX [13,15]. The data shows this mechanism is an over-simplification.
The standard model for π-nucleus scattering is the optical potential. Johnson and Siciliano are developimg a potential with which to calculate elastic, SCX and DCX cross sections [48,38,22]. They include second, order terms, important in DCX because the reaction must involve scattering by at least two nucleons. By using a general form for the optical potential they include contributions from excited intermediate states.
Miller has suggested the forward peaking is due to the presence of six-quark clusters in the nucleus [16]. His model reproduces the data for 50 MeV DCX on ¹⁸0 and ¹⁴C at forward angles.
Karapiperis and Kobayashi have used the Δ-hole model to calculate elastic, SCX and DCX cross sections [19]. They obtain fair agreement with data for a range of nuclei and energies.
Jennings et al. [22] are developing a model in which short range correlations produce the forward peaking. This work is at an early stage.
More DCX measurements are needed to choose between the various models. Measurements at 50 MeV are particularly valuable because the simple sequential mechanism is small, allowing other mechanisms to be observed. Further data such as excitation functions below 80 MeV and angular distributions for other nuclei are needed. / Science, Faculty of / Physics and Astronomy, Department of / Graduate
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Theoretical studies of transition metal containing diatomics and DNA electron transfer唐素明, Tong, So-ming, Glenna. January 2002 (has links)
published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy
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