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When measuring RF or microwave devices under a temperature profile inside a climatic chamber, one of the main problems lies in the impossibility to have the network analyzer calibrated for all the temperatures measured along the profile. Typically, the calibration is performed just at room temperature, assuming that there is going to be an error in the rest of the measured temperatures. That error...
During cardiopulmonary resuscitation feedback systems can help rescuers to achieve optimal chest compression rates. In this paper we describe and compare two methods to provide chest compression rate feedback based only on the thoracic impedance signal, available in automatic external defibrillators. The first method (time domain) identified the relative maxima of the impedance and characterized each...
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