Now showing items 91-100 of 116
Interaction of von Karman vortices and intersecting main streams in staggered tube bundles
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1999-04)
Flow visualization, heat transfer and pressure drop characteristics in flow through staggered tube bundles have been regarded as classical, with results well-documented. However, the mechanism of producing such results ...
Optical spectra and thermal Schottky levels in dysprosium sesquisulfide
(The American Institute of Physics, 1999-06-22)
We report a detailed crystal-field splitting analysis of the energy levels of Dy3+(4f9)Dy3+(4f9) in single crystals of Dy2S3Dy2S3 that have the Th3P4Th3P4 cubic defect structure. From an analysis of the temperature-dependent ...
The new heliospheric magnetic field: Observational implications
(The American Institute of Physics, 1999-06-16)
A summary of the new model of the heliospheric magnetic field and its observational implications is presented. We first introduce a global model for the steady-state configuration in the low corona and discuss solar and ...
Electron injection by dephasing electrons with laser fields
(The American Institute of Physics, 1999-07-12)
The authors seek to review injection concepts for plasma based acceleration. It is shown that regardless of injection mechanism, resultant beams will be similar due to wave structure. Also, most schemes employ the same ...
Mechanism of texture development in ion-beam-assisted deposition
(The American Institute of Physics, 1999-07-26)
We perform a series of atomistic simulations of ion-beam-assisted deposition (IBAD) to identify the mechanism by which ion beams select crystallographic texture. Simulations were devised to distinguish between two previously ...
Measurement of the parity violating asymmetry AγAγ in +p→d+γn⃗+p→d+γ
(The American Institute of Physics, 1999-06-10)
The weak pion-nucleon coupling constant Hπ1Hπ1 remains poorly determined, despite many years of effort. The recent measurement of the 133Cs133Cs anapole moment has been interpreted to give a value of Hπ1Hπ1 almost an order ...
The inner source for pickup ions
(The American Institute of Physics, 1999-06-16)
Pickup ions are observed by the Solar Wind Ion Composition Spectrometer on Ulysses which appear to have been picked up close to the Sun. A transport theory for the propagation of these ions is used to constrain the spatial ...
Abrupt PbTiO3/SrTiO3PbTiO3/SrTiO3 superlattices grown by reactive molecular beam epitaxy
(The American Institute of Physics, 1999-05-10)
PbTiO3/SrTiO3PbTiO3/SrTiO3 superlattices were grown on (001) SrTiO3SrTiO3 substrates by reactive molecular beam epitaxy (MBE). Sharp superlattice reflections were observed by x-ray diffraction. High-resolution transmission ...
Use of magnetocrystalline anisotropy in spin-dependent tunneling
(The American Institute of Physics, 1999-09-27)
Epitaxial growth techniques are used to impose in-plane magnetocrystalline anisotropy on a spin-polarized tunneling configuration. A Cu(100) buffer layer grown on a Si(100) substrate stabilizes epitaxial face-centered-cubic ...
Witten–Reshetikhin–Turaev Invariants of¶Seifert Manifolds
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1999-08)
For Seifert homology spheres, we derive a holomorphic function of K whose value at integer K is the sl 2 Witten–Reshetikhin–Turaev invariant, Z K , at q= exp 2π i / K . This function is expressed as a sum of terms, which ...