Eindeutigkeit der Lösung des Anfangsproblems einer elliptischen Differentialgleichung zweiter Ordnung in zwei Veränderlichen

Ohne Zusammenfassung     

Ueber die Alkaloide der Jaborandibl?tter

Ohne Zusammenfassung     

A CEMS apparatus for in situ studies of ion beam modified metals

An apparatus for CEMS studies of ion beam modified metals is described. The spectrometer can be coupled directly to the ion implanter. During ion bombardement the sample can be cooled to liquid nitrogen temperature or heated to about 500 K. CEMS measurements can be taken directly after ion beam modification between room temperature and liquid nitrogen temperature. As a first test of the performance of the apparatus CEMS spectra of boron-ion implanted iron at room temperature are presented.     

Stability of Relative Equilibria. Part II: Dumbell Satellites

In the second part a practically important problem, namely the stability of relative equilibria of a dumbell satellite on an orbit around the Earth is treated by means of the reduced energy-momentum method. The dumbell satellite is used to emphasize the advantages of the reduced energy-momentum method which did not become obvious in the simple example of the rotating pendulum treated in Part I, as well as, to discuss some of the finer technical details.