42 research outputs found
Activity-based learning elementary schools:implementing a core curriculum principle in elementary science education
Computer an Sonderschulen und sozialpaedagogischen Berufsbildungsstaetten Ein Modellversuch mit lernbehinderten Jugendlichen in Schleswig-Holstein
Copy held by FIZ Karlsruhe / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman
Design considerations of a linear generator for a range extender application
The free piston linear generator is a new range extender concept for the application in a full electric vehicle. The free piston engine driven linear generators can achieve high efficiency at part and full load which is suitable for the range extender application. This paper presents requirements for designing a linear generator deduced from a basic analysis of a free piston linear generator
Coupled field-circuit problem: a generalized signal flow graph description of the circuit equations
A generalized tree theory is presented in order to deal with all possible connections of solid
and stranded conductors in an electric circuit coupled with a magnetic
finite element model. A
generalized Signal Flow Graph is used to determine the unknown currents and voltages necessary to
describe the circuit behaviour in a symmetric way. The method is applied to an example. The aim of this
paper is to state a general network theory able to deal with all possible connections of voltage and current
sources, impedances, solid and stranded conductors leading to a symmetric and compact coupling matrix
without zero diagonals