Mitral valve regurgitation is a heart condition that occurs when the mitral valve does not close properly, allowing blood to flow backward into the left atrium. Symptoms do not always occur. When they ...

Abstract: Exhaust gas recirculation valves used in internal combustion engines are highly nonlinear due to its nonlinear mechanism and dry friction dominated at low valve speed that could lead to ...

Air traffic controller staffing shortages worsened over the weekend as the nation’s government shutdown hit its fourth week, leading to delays and anxiety, and experts say it won’t get better until ...

Abstract: Trajectory optimization is a powerful tool for robot motion planning and control. State-of-the-art general-purpose nonlinear programming solvers are versatile, handle constraints effectively ...

PureWow editors select every item that appears on this page, and some items may be gifted to us. Additionally, PureWow may earn compensation through affiliate links within the story. All prices are ...