A datalogger to identify vocalizing dolphins

Using a binaural biomimetic array to identify bottom objects ensonified by echolocating dolphins.

The development of a unique dolphin biomimetic sonar produced data that were used to study signal processing methods for object identification. Echoes from four metallic objects proud on the bottom, and a substrate-only condition, were generated by bottlenose dolphins trained to ensonify the targets in very shallow water. Using the two-element ('binaural') receive array, object echo spectra wer...

Application of a Commercial Datalogger to Electric Powered and Manual Wheelchairs of Children

Interdiction problem as a tool to identify an effective budget allocation to quality improvement plans

In the face of budgetary limitations in organizations, identifying critical facilities for investing in quality improvement plans could be a sensible approach. In this paper, hierarchical facilities with specified covering radius are considered. If disruption happens to a facility, its covering radius will be decreased. For this problem, a bi-objective mathematical formulation is proposed. Crit...

Silent or Vocalizing Rats Copulate in a Similar Manner

Both male and female rats produce 50 kHz ultrasonic vocalizations (USVs) in the presence of a sexual partner and during copulation. Previous studies showed that USVs have no incentive value for rats. In this study, we evaluated the role of USVs in behavior during copulation. Three groups of rats were used: sham males paired with sham females, devocalized females paired with sham males, and sham...

a review approaches to identify enteric bacterial pathogens

conclusions therefore, development of rapid diagnostic methods with suitable sensitivity and specificity is very important about this infectious disease. in this review, we will discuss some of the important diagnostic methods. context diarrhea is a common disease across the world. according to who, every year about two billion cases of diarrhea are reported in the world. it occurs mainly in th...