Matthias Schmelz

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PURPOSE To develop an instrument to measure corneal sensitivity. Mechanical stimulation was performed with increasing air flow. Chemical stimulation consisted of local pH decreases induced by a mixture of air and CO2 at different concentrations. METHODS Air and 98.5% CO2 were mixed with an electronic, proportional-direction control valve to obtain gas(More)
SUMMARY Forty years after the first application of Superconducting Quantum Interference Devices (SQUIDs) [1], [2] for geophysical purposes, they have recently become a valued tool for mineral exploration. One of the most common applications is time domain (or transient) electromag-netics (TEM), an active method, where the inductive response from the ground(More)
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