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A rotary drum filter with 30% submergence is used to filter concentrated aqueous slurry of calcium carbonate containing 15lb of solids per cubic foot of water. The pressure–drop is 2011Hg. If the filter cake contains 50% mixture (wet basis), calculate the filter area required to filter 10 gal/min of slurry. The filter cycle time is 5 min. The specific cake resistance depends on the pressure–drop as: α (ft/lb) = α (Δp)0.26, where α = 2.90×1010 Viscosity of the filtrate = 6.72×10-4 lb/ft-s. Density of calcium carbonate = 168.8 lb/ft3. Neglect filter medium resistance.
The Fourier transform of a Gaussian pulse is also a Gaussian pulse.
Gaussian pulse shaping filter reduces the spectral occupancy and ISI.
Butterworth lowpass filter has a parameter, filter order, determining its functionality as very sharp or very smooth filter function or an intermediate filter function. If the parameter value is very high, the filter approaches to which of the following filter(s)?
Butterworth lowpass filter has a parameter, filter order, determining its functionality as very sharp or very smooth filter function or an intermediate filter function. If the parameter value is of lower order, the filter approaches to which of the following filter(s)?
Assertion (A): Nyquist rate of sampling is the theoretical minimum sampling rate at which the signal can be sampled and still be reconstructed from its samples. Reason (R): When the Nyquist rate sampling is used, only an ideal low pass filter can be used to extract signal x(t) from sampled signal xs(t). Code:
The filter order of a Butterworth lowpass filter determines whether it is a very sharp or extremely smooth filter function, or an intermediate filter function. Which of the following filters does the filter approach if the parameter value is very high?
A nyquist pulse is the one which can be represented by _____ shaped pulse multiplied by another time function.
A pulse shaping filter should satisfy two requirements. They are
In this question, after two statements i and ii two conclusions have been given. Assuming the given in the statement together as truth, consider both the findings together and decide on which one of them follows beyond the logical and appropriate scepticism based on the information given in the statement. Statement: Some papers are pen. All pencils are pen. Conclusion: i) Some pencils are papers ii) Some pen are pencils (A) Only conclusion i follows (B) Only conclusion ii follows (C) Either I or II follows (D) Neither I nor II follows (E) I and II both follow