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Suppose it is known that a 5MHz transducer axis makes an angle of 30 degrees relative to the direction of motion of blood in a vessel. If the Doppler frequency is measured to be +500Hz, what is the velocity of the blood? Is it moving toward or away from the transducer?
give three methods that are used to express logic relationship between inputs and outputs of a logic gate, for example a three-inputs NOR gate.
Compute the energy of the following signals: 1) x(t) = e^-(a|t|) for a > 0 (Notice the absolute value on t) 2) x(t) = (1 - |t|)rect(t/2) (Notice the absolute value on the first t)
The voltage across the load must remain between 4.7 and 5.0 V for all values of load current. Design a voltage-divider network to supply the load. You may assume that resistors of any value desired are available.
Assume that in addition to the sine-wave signal you have a dc reference voltage of 1.5 V available. Sketch the output signal waveform.
A successive approximation A/D converter with range of 0 to 5 volts and a resolution of 0.05 volts is specified. It will be clocked at 500 KHz. a. Determine the number of bits that must be specified for this converter. b. Determine the t..
A load consists of a resistance R in parallel with a capacitor of reactance X. The load is fed from a single phase supply through a line of impedance 8.4 + j11.2 ohms. The rms voltage at the load terminal is 1200 at 0 degress V rms,
Design the circuit to establish a dc emitter current of 1mA and provide the highest possible voltage gain while allowing for a maximum signal swing at the collector of +-2V. Use +10V and -5V power supplies.
A common energy consumption for a family is about 1000 kW hr / month. How much power would that be on the average. (Hint: Notice that hour and month are both units of time so kW hr per month is really a power unit.
In Mips when you use addi or any other commands in which you use a 16 bit value for a reg. value or address offset what operation is done to check if its is a negative number's two's complement or just a regular binary number
Which of these metrics are dependent on link conditions: CINR, SNR, or BER Evaluate the pros and cons of using the SNR and signal - to - interference - noise ratio ( SINR ) for estimating signal quality versus using the absolute value of the signa..
The shaft output of a three-phase 60- Hz induction motor is 80 KW. The friction and windage losses are 920 W, the stator core loss is 4300 W and the stator copper loss is 2690 W. The rotor current and rotor resistance referred to stator are respec..
Calculate the minimum PWM frequency for a small permanent magnet DC motor with a time constant of 15 milliseconds.
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