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A METHOD FOR THE COMPARISON OF TWO POWER
COMPARISON OF POWER SPECTRAL DENSITY PLOTS
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12th Floor 20 30 Frequency 30 Frequency Hz 30 Sums 8th Floor 25 A.8 AND FIG accelerometer direction Barnes Building Blackwelder Building Building 12th Building 8th Floor Building Stanford buildings of identical California 8 stories Center of Building comparison CORRELATION OF FIG density plot density density plots obtained End of Building energy transfer points Floor 100 Sums Floor 25 Sums Floor 30 four 8-story buildings four buildings Fourier analysis Hewlett-Packard Hoskins Building Hulme Building identical design 28 linear magnitude scale logarithmic magnitude display logarithmic magnitude scale longitudinal center 8th McFARLAND BUILDING mode natural frequencies number of places origin i.e. PEAK CORRELATION VALUES plot density plot plots for four Power Power Power POWER SPECTRAL DENSITY predominant energy transfer Quillen Building RESULTS OF CORRELATION shift spectral densities obtained spectral density functions SPECTRAL DENSITY PLOT spectral spectral spectral SUMMARY Sums 10 Fig Sums 40 transverse center 8th transverse end 8th VALUES BETWEEN POWER