We investigated the influence of oxygen demand (developmental stage) and supply (hypoxia, water flow rate, the chorion and body movements) on the oxygen concentration within the boundary layer next to the chorion of embryos or skin of larvae of rainbow trout (Oncorhynchus mykiss). Oxygen microelectrodes were used to measure dissolved oxygen (DO) within the boundary layer of trout embryos and la...

BACKGROUND AND PURPOSE Anemia is common after subarachnoid hemorrhage and may exacerbate the reduction in oxygen delivery (DO(2)) underlying delayed cerebral ischemia. The association between lower hemoglobin and worse outcome, including more cerebral infarcts, supports a role for red blood cell transfusion to correct anemia. However, the cerebral response to transfusion remains uncertain, beca...

Introduction This whitepaper describes how the VectorCAST embedded software testing platform is used to satisfy the Software Verification Process objectives as defined in section 6.0 of the DO-178B and DO-178C standards, “Software Considerations in Airborne Systems and Equipment Certification.” This whitepaper also highlights the differences between the two standards as they relate to Section 1...

IrO 2 is the most stable oxygen evolution reaction (OER) catalyst in acidic media and it has been widely used as co-catalyst to mitigate cell reversal damages anode of PEM fuel cells (PEMFCs). In this study, a mechanistic understanding degradation an under transient operation PEMFC provided. Thermogravimetric analysis (TGA) reductive atmosphere (3.3 vol.% H /Ar) shows that not containing at ope...

For about two decades, compliance with Software Considerations in Airborne Systems and Equipment Certification (DO-178B) has been the primary means for receiving regulatory approval for using software on commercial airplanes. A new edition of the standard, DO-178C, was published in December 2011, and regulatory bodies have started the process towards recognizing this edition. The stated purpose...

Rivers can absorb certain amounts of contamination relying on different factors such as: river discharge, the primary conditions of the river, the river depth, discharge and the river viscosity of the offloaded wastes in the river. From parameters of water quality point of view, it is recom-mended to determine some parts of the river which are lower than the standard level in order to find out ...

The aim of this study was to assess the influence of trout farm effluents on water quality parameters in the Dohezar Stream. In this study two trout farms and 7 stations were selected and physiochemical of water, including air and water temperatures, dissolved oxygen concentration (DO), pH, electrical conductivity (EC), water flow and biochemical oxygen demand (BOD) were measured every 30 days ...

Cross-sectional transmission electron microscopy was used to study defect formation and evolution in the !001" Ge and Si wafers implanted with 1 MeV Si+ and 40 keV Si+ at a dose of 1 !1014 cm−2. As expected, upon annealing, the #311$ extended defects form and subsequently dissolve at the projected range for nonamorphizing implants into Si. However, in Ge, no #311$ defect formation is observed f...