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Evaluation Of An Alternative Statistical Decision Rule For Site Remediation, Bradley Donald Schultz
Evaluation Of An Alternative Statistical Decision Rule For Site Remediation, Bradley Donald Schultz
UNLV Retrospective Theses & Dissertations
A method proposed by the Environmental Protection Agency to optimize site remediation, called the CRG approach states that soil cleanup levels are typically misapplied on a point by point basis rather than on average. The effectiveness of the CRG approach will be evaluated for lognormal, exponential, uniform, and normally distributed data by first simulating data sets for each distribution. Next the CRG approach will be applied to the simulated data sets. Finally, the results of the CRG approach will be analyzed.
A Critical Evaluation Of The Dolby Digital Compression Algorithm, David Andrew Ingbretsen
A Critical Evaluation Of The Dolby Digital Compression Algorithm, David Andrew Ingbretsen
UNLV Retrospective Theses & Dissertations
Dolby Digital, or AC-3, provides for the compression of high-quality audio signals at a bit rate of 384 kbps. for 5.1 audio channels. The purpose of this thesis is to conduct an analysis and evaluation of the AC-3 compression algorithm. The main conclusion is that AC-3 allocates too few bits to the upper frequency ranges. This conclusion is supported by two lines of argument. First, a comparison of the AC-3 perceptual coding model with known facts concerning the masking properties of sound reveals omissions in the AC-3 perceptual model that lead to loss of high frequency resolution. Second, a test …