Now showing items 111-116 of 116
The solar wind ionic charge states during the Ulysses pole-to-pole pass
(The American Institute of Physics, 1999-06-16)
We analyze and compare the ionic charge composition data for different types of the solar wind which the Solar Wind Ion Composition Spectrometer on Ulysses observed during the pole-to-pole pass of its primary mission. The ...
Capabilities of two- and three-dimensional FDG-PET for detecting small lesions and lymph nodes in the upper torso: a dynamic phantom study
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1999-01)
The capabilities and limitations of two-(2D) and three-dimensional (3D) fluorine-18 fluorodeoxyglucose positron emission tomography (FDG-PET) in detecting small tumors and lymph nodes were studied in a phantom modeling the ...
Use of Langmuir probes in non-Maxwellian space plasmas
(The American Institute of Physics, 1999-07)
Disturbance of the Maxwellian plasma may occur in the vicinity of a spacecraft due to photoemission, interactions between the spacecraft and thermospheric gases, or electron emissions from other devices on the spacecraft. ...
Composition variations in fast solar wind streams
(The American Institute of Physics, 1999-06-16)
The Ulysses spacecraft has now completed its first revolution around the Sun on its nearly-polar orbit. Thereby it has traversed the extended high speed streams from the polar coronal holes (south in 1993/94, north in ...
Polarized 129Xe129Xe optical pumping/spin exchange and delivery system for magnetic resonance spectroscopy and imaging studies
(The American Institute of Physics, 1999-02)
We describe the design and construction of a laser-polarized 129Xe129Xe production and delivery system that is used in our in vitro and in vivo magnetic resonance imaging (MRI) experiments. The entire apparatus including ...
Cold relativistic wavebreaking threshold of two-dimensional plasma waves
(The American Institute of Physics, 1999-07-12)
The two-dimensional wave-breaking of relativistic plasma waves driven by a ultrashort high-power lasers, is described within a framework of cold 2-D fluid theory. It is shown that the transverse nonlinearity of the plasma ...