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 8617 for “"He+"”.
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Pion absorption on ³He
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1995.
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Magnetic properties of dilute solutions of liquid He³ in He⁴ at low temperatures
The spin-diffusion coefficient and magnetic susceptibility of dilute solutions of He3 in He4 has been measured down to about 3moK. These measurements were made on two solutions of nominal concentrations of 1.3 and 5.0% He3 in He4 under their own vapor pressures. The values of the diffusion …
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Zircon (U-Th)/He Dates from Radiation Damaged Crystals: A New Damage-He Diffusivity Model for the Zircon (U-Th)/He Thermochronometer
Zircon (U-Th)/He (zircon He) dating has become a widely used thermochronologic method in the geosciences. Practitioners have traditionally interpreted (U-Th)/He dates from zircons across a broad spectrum of chemical compositions with a single set of ⁴He diffusion kinetics derived from only a …
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Ask the Doctor, He Might Know!
This is the culmination of my own creation, a piece that represents what it means for me to be a writer, and what it means to be a person living, and dying in the world.
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Heat capacity of dilute solutions of liquid He[superscript 3] in He[superscript 4] at low temperatures
Heat capacity measurements were made on two dilute solutions of 1iquid He3 in He4. These data, taken under saturated vapor o 0 pressure at temperatures between .005 K and .20 K, are characteristic of an ideal Fermi gas with m'l'< dependent only slightly on concentration. The solution with a molar …
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On the microscopic theory of liquid ⁴He
"A microscopic description of the ground state and elementary excitations of liquid 4He is presented. The variational theory is used in conjunction with a perturbative scheme called correlated basis perturbation theory. The hypernetted-chain technique is used to calculate the various matrix …
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Odd dimensional symplectic manifolds by Zhenqi He.
In this thesis, we introduce the odd dimensional symplectic manifolds. In the first half we study the Hodge theory on the basic symplectic manifolds. We can define two cohomology theories on them, the standard basic de Rham cohomology gheory and a basic version of the Koszul-Brylinski-Mathieu …
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He is with you and he will be in you: The Spirit, the believer, and the glorification of Jesus
Were OT saints indwelt by the Holy Spirit? This dissertation seeks an answer from John's Gospel. The thesis here is that John 14:17c, "He is with you, and he will be in you," encapsulates the Bible's description of the relationship between the Spirit and the believer in the Old and New Covenants. …
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Laboratory Astrophysics Studies of Magnetized Collisionless Shock Precursors and the ³He³He Proton Spectrum at the OMEGA Laser Facility
Laboratory astrophysics enables the study of astrophysical systems in the lab. There are broadly two types of laboratory astrophysics experiments: macrophysics and microphysics. Macrophysics experiments study a scaled down version of an astrophysical system while microphysics experiments create a …
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The ¹⁵°Sm(t, ³He)¹⁵°Pm* and ¹⁵°Nd(³He, t)¹⁵°Pm* reactions and applications for 2v and 0v double beta decay
Thesis (Ph. D.)--Michigan State University. Dept. of Physics and Astronomy, 2010
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A polarized ≥He ion source: Measuring the polarization
… been assembled at Rice University which uses the principle of optical pumping to produce polarized He ions for extraction and acceleration. The design of an experiment to measure the degree of polarization of the ions is described. 3He+ ions are accelerated to an energy of approximately 300 keV …
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He descended into hell: an English Reformation controversy
During the Reformation of the sixteenth and seventeenth centuries, almost all of the reformers appealed in some way to the writings of the early fathers in their polemical debates against the Roman church. But the English church made the claim that their purpose was only to teach that which was …
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U/He-chronologische Fallstudien an Eisen- und Manganerzen
Der Einsatz der (U+Th)/4He-Methode (kurz U/He-Methode) zur Datierung von Erz- bzw. Mineralvorkommen wurde erforscht Damit werden Beiträge zur Lagerstättenkunde und Klimaforschung erarbeitet. Dazu sind zunächst die Grundlagen der Methode und die Messverfahren ausführlich dargestellt. Anschließend …
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Polarization of D(d,n)He³ reaction neutrons
The state of polarization of neutrons emitted at an angle of 45° (Lab) from the D(d,n)He³ reaction has been determined by observing the asymmetry in scattering from carbon. Neutrons scattered at equal angles to the right and left were detected simultaneously by two cylindrical stilbene crystals, …
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