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Homoclinic solutions of almost periodic Hamiltonian systems
(World Scientific, 1998) -
Doubly asymptotic trajectories of Lagrangian systems in homogeneous force fields
(Springer Verlag (Germany), 1998)We study Lagrangian systems with symmetry under the action of a constant generalized force in the direction of the symmetry field. After Routh's reduction, such systems become nonautonomous with Lagrangian quadratic in ... -
Aufbruch zu neuen Märkten – Vom Markt zum Produkt
(Carl Hanser Verlag, 1998)Nach Jahren der Rationalisierung besinnt sich die deutsche Wirtschaft nun wieder auf eine ihrer ureigenen Stärken: die Entwicklung innovativer Produkte ! Die Anzahl Patentanmeldungen zeigt, daß der Erfindergeist deutscher ... -
Connecting orbits for some classes of almost periodic Lagrangian systems
(Elsevier, 1998)The existence is proved, by means of variational arguments, of infinitely many heteroclinic solutions connecting possibly degenerate equilibria for a class of almost periodic Lagrangian system. An analogous multiplicity ... -
Schlanke Informationsprozesse
(Carl Hanser Verlag, 1998)Lean information processes. The change of the industrial society into an information society contains new challenges for an efficient reorganization of business processes. The following contribution shows, how information ... -
Incidence of lime-induced chlorosis: plant response mechanisms and role of water soluble humic substances
(1998)Fe deficiency-induced chlorosis is a frequent problem in calcareous soils and represents a severe limitation to the productivity of many crops in the Mediterranean regions. Activation of plant response mechanisms and the ... -
Zum Zuchtziel beim Rhönschaf in Hinblick auf Mutterschafgewicht und Fruchtbarkeit unter dem Aspekt extensiver und intensiver Haltung = Investigations on the breeding goal in the Rhonschaf-breed in respect to ewe's weight and fertility under consideration of extensive and intensive conditions
(ARCHIV FUR TIERZUCHT, 1998)The German Rhönschaf breed belonged to the rare breeds in the past decade but has now recovered in respect to the population size. A change in the breeding goal towards an increasing of body weight can be observed. The ... -
Polarization-independent δ-strained semiconductor optical amplifiers: A tight-binding study
(1998)We present a tight-binding analysis of the polarization dependence of GaAs δ-strained semiconductors optical amplifiers. Our approach allows us to account for band nonparabolicity, valence band mixing, as well as thin layer ... -
A combined Monte Carlo and experimental analysis of light emission phenomena in AlGaAs/GaAs HBTs
(IOP PUBLISHING LTD, 1998)We present a detailed investigation of light emission phenomena connected with the presence of hot carriers in AlGaAs/GaAs heterojunction bipolar transistors. Electrons heated by the strong electric field at the base-collector ...