41. The system is called unstable where the closed loop transfer function diverges for some s. 42. The magnetic field lines form closed loops within the core without leaving the core material. 43. Eddy currents flow in closed loops within conductors, in planes perpendicular to the magnetic field. 44. Open loop and closed loop ( feedback ) systems and stability analysis of these systems. 45. Closed loop prototype is under construction at Mecklenburg-Vorpommern, Germany.46. This is a closed loop , since the north pole and the south pole are identified. 47. If the closed loop were long enough it could even be used for power transmission. 48. In Midland, city officials had already closed Loop 250 and off-duty officers were called in. 49. The working fluid in a Rankine cycle follows a closed loop and is reused constantly. 50. This forces the use of more environmentally sound injection wells or a closed loop system.
