This paper describes the system being constructed to steer the transmitted beam pattern of the KiwiSAS-IV synthetic aperture sonar. This sonar is being developed by the Acoustics Research Group at the University of Canterbury for high-resolution seafloor imagery and bathymetry. The goal is to steer the transmitted beam horizontally for spotlight-mode aperture synthesis. The beam-steering is per...

Freshwater ecosystems along river floodplains host among the greatest biodiversity on Earth and are known to respond anthropic pressure. For water impounded systems, resilience changes in natural flow regime is believed be bidirectional. Whether such prevents system from returning pristine conditions after reverse as yet unclear, though widely documented. In this work, we show that temporal irr...

Abstract A 2-year experiment was conducted at the USDA-ARS Southern Plains Experimental Range (SPER) near Fort Supply, OK to define effects of supplementing steers grazing native range with extruded 100% dried distillers' grains (DDGS) cubes. Each year 126 (259 ± 43 kg) grazed from late May September allocated 3 treatments: 1) negative control (NC) stocked 2.4 ha/steer ad libitum mineral only, ...

The effect of supplementing diets with various levels of vitamin D3 to provide 0, 0.5, 1, and 5 million IU/(steer x d) for 8 d before slaughter on the mineral content and localization of Ca in LM and muscle fragments was studied during the postmortem aging process. Twelve feedlot steers of three biological types were given access to the four levels of vitamin D for 8 d before slaughter. Differe...