This work presents a novel control index to regulate the pump speed of an axial flow blood pump for the left ventricular assist device (LVAD). The control index is based on the characterization of pump operating conditions such as normal or suction status. The pump operating characteristics reveal that a certain pulsatility relationship between the pump pressure difference and the pump flow is ...

introduction: the main goal of accounting systems and financial reporting of public sector is to provide the qualified information that can assist managers in performing their responsibility effectively. it can also assist them in making appropriate political, economic, and social decisions. method: this study evaluated the managers’ attitudes towards the quality of financial reports. forty nin...