Define the terms resolution and R-factor as used in X-ray
crystallography. Why are these values important in selecting
structures to use for modeling and other calculations? Diagram the
sitting drop crystallization procedure. What factors might you vary
the experimental conditions to search for good
crystals?
Briefly explain the following terms in a few sentences:
a. Resolution of optical microscopy
b. Langmuir versus Langmuir-Blodgett (LB) film
c. The wavelength of electrons at an acceleration voltage of 100
kV
d. Chemically amplified photoresist
e. Elastic versus inelastic scattering
f. Capillary force
define the following of a microscope
(a) Magnification
(b) resolution
(c) depth of field
(d) field of view
(2) what are the differences between a stereo microscope and a
compound microscope
Consider a 12-bit ADC with an analog input voltage range of 0 to
3 volts.
a) Compute the ADC precision, ADC ranges for input and output,
and ADC resolution.
b) What is the binary value computed by the ADC for an analog
input voltage of 1.0 volt?
c) Write an ADC0_In function in C that uses busy-wait
synchronization to sample the ADC. The function reads the ADC
output, and returns the 12-bit binary number. Assume the ADC has
already been...
2. A digital signal processing system with analog audio signal
input in the range of 0-20 Khz uses oversampling techniques and a
second order sigma delta modulator to convert the analog signal
into a digital bit stream at a rate of 3.072 Mhz.
i) Explain how the digital bit stream may be converted in to a
digital multibit stream for x(n).
ii) Determine the overall improvement in signal to quantization
noise ratio made possible by oversampling and noise shaping and...