The development procedure of permanent magnet drives for sensor less operation beginning from standstill under overload conditions has to consider different design aspects coevally. First, the robust rotor position sensing by test signal enforces a design with a strongly different behavior of the spatial dq-oriented differential inductance values. Therefore, the interior rotor magnet array arra...

Original scientific paper This paper shows a thermal and tension analysis of a brake disc for railway vehicles. The FEM (Finite Element Method) was used to carry out the analysis. The analysis deals with one cycle of braking – braking from maximum velocity to a standstill, cooling off faze and then accelerating to maximum velocity and again braking to a standstill. This case of braking represen...

The response of isolated guinea pig hearts to perfusion with purified streptolysin O is characterized by a rapid, but transient, decrease in rate and amplitude of contraction; these reactions are superimposed upon a gradual, irreversible, loss of ventricular contractility. At ventricular standstill, the atria continue to beat spontaneously in a normal way. Isolated ventricle strips prepared fro...

conclusions: catheter ablation of flutter circuit will not prevent later manifestation of af in 16% of the patients undergoing catheter ablation of the typical afl. bmi was the only independent predictor of af following catheter ablation of the typical afl. objectives; to determine long-term incidence and predictors of af after catheter ablation of typical afl. material and methods: between mar...

1. Pick A, Langendorf R, Katz LN: A-V nodal tachycardia with block. Circulation 24: 12, 1961 2. Hering HE: Zur experimentellen Analyse der Unregelmaessigkeiten Herzschlages. Arch Ges Physiol 82: 1, 1900 3. Scherf D, Cohen J: The Atrioventricular Node and Selected Cardiac Arrhythmias. New York, Grune and Stratton, 1964, pp 319-364 4. Zipes DP, DeJoseph RL: Dissimilar atrial rhythms in man and do...