Speech Activity Detection(SAD) is a well researched problem for communication, command and control applications, where audio segments are short duration and solution proposed for noisy as well as clean environments. In this study, we investigate the SAD problem using NASA’s Apollo space mission data [1]. Unlike traditional speech corpora, the audio recordings in Apollo are extensive from a long...

Recently, a prototype relational database system has been developed that has the capability of storing and querying analog and video information for interaction with data analysis applications [8]. The system provides for numerous querying categories via indexed meta-data using pre-filled, drop-own combo boxes. A shortcoming of the design is the growing number of categories that could in time b...

We describe the isolation and identification of Enterobacter intermedium from the gallbladder of a patient with cholecystitis. There have been only four documented isolations of this organism from humans; it normally occurs in surface water and unpolluted soils. The identification was initially made by a MicroScan Walk/Away system with a Neg Combo 18 conventional identification-susceptibility p...

A spiraled planar inverted-F Antenna (PIFA) for Multiband frequencies of 2. 65 GHz, 4. 10GHz and 5. 85GHz for wireless local area network (WLAN) applications proposed in this paper. Simulation tool based on the method of moments (IE3D) has been used to analyse and optimize the antenna. The proposed antenna possesses the properties of good performance, compact size (about 50% of a typical PIFA),...

A rapid diagnosis is considered important in HIV care. In 138,911 testing episodes with the Abbott Architect HIV Ag/Ab Combo assay (3,705 reactive samples), a signal-to-cutoff ratio of >151.17 had a positive predictive value of 100% and a sensitivity of 67.4% for the detection of subsequently confirmed HIV infection. We suggest that results higher than this signal-to-cutoff ratio threshold may ...

Specimens from a single blood donor population as well as a single diagnostic population were tested on the Abbott PRISM HIV Ag/Ab Combo assay. All samples initially reactive were retested in duplicate. Repeatedly reactive specimens were tested in the NRL HIV-1/2 confirmatory algorithm to determine their true status. Specimens that were confirmed as HIV-positive were excluded from calculation o...