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Question 1- A nurse noticed that one electrode of a pair of Ag/AgCl neural electrodes was dirty and cleaned it by scraping it with steel wool or Brillo until it was bright and shiny. The nurse then placed the electrode back on the patient. How did this procedure affect the signal observed from the electrode and the electrode impedances?
Question 2 - You are seeking to design a 2 cm length tungsten microelectrode for intracellular recording of neuronal action potentials that have amplitude of 50mV. What could the area of the electrode be to discriminate action potentials from the noise?
Use the formulas for resistivity and thermal noise below: where L is the length of the wire, A is the cross sectional area of the recording site and? is the resistivity of tungsten at 293K. where k is the Boltzmann's constant (1.38x10-23J/K), T is the absolute temperature (293K), R is the resistance, and f is the bandwidth for action potentials(500-6000hz).
It is stated that multiprogramming and multiprocessing present the same problems, with respect to concurrency. This is true as far as it goes. However, cite two differences in terms of concurrency between multiprogramming and multiprocessing.
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I would like to use the each following methods to answer the (same question) as attached : VALUE MEASUREMENT MODELS GOAL PROGRAMMING OUTRANKING (ELECTRE I)
find the optimum solution or optimum solutions. Does the model have infeasibility, unique optimum, alternative optima, or unboundedness?
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Design a suitable ore pass to transport ore a vertical distance of 200m from the extraction level to the transport level of a block caving mining operation.
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