Background Mitral valve repair (MVR) shows clinical and economic superiority over mitral valve replacement in patients with dystrophic and rheumatic regurgitation, but outcomes are less certain in chronic ischemic mitral regurgitation (IMR). We hypothesize that MVR may have adverse effects on LV hemodynamics resulting from suboptimal annuloplasty geometry and post-repair mitral valve stenosis w...

The simulation of turbulent boundary layers requires quite detailed inflow information since the resolved flow is unsteady and three-dimensional. Rather than simulating laminar and transitional regions arising near a leading edge, it is often more computationally efficient to formulate a fully turbulent inflow condition. To date, three types of methods for creating appropriate inflow conditions...

Hepatic pseudolesions and pseudotumors of the third inflow area are sometimes encountered on imaging. Generally, differentiating these lesions of true hepatic neoplasm on radiological examinations is easy with the knowledge of common sites in the liver and characteristic indications of these lesions. However, they occasionally mimic hepatocellular carcinoma in various imaging modalities. In thi...

Background Patients after atrioventricular septal defect (AVSD) repair have aberrant atrioventricular valve morphology resulting in a disorganized left ventricular (LV) inflow [1] with an increased amount of inflow reaching the apical level of the LV and retaining there during the subsequent systole [1]. This may elevate energy loss in LV flow due to friction. We aimed to evaluate the associati...

We discuss the options of the fall-back disk model of Anomalous X-Ray Pulsars (AXPs). We argue that the power-law index of the mass inflow rate during the propeller stage can be lower than those employed in earlier models. We take into account the effect of the super-critical mass inflow at the earliest stages on the inner radius of the disk and argue that the system starts as a propeller. Our ...

The ability to accurately evaluate hydrokinetic turbine concepts at small-scale in experimental facilities is important for the development of new devices. Problems introduced by working at lab-scale include operation in a transitional Reynolds number regime and cross-sectional blockage. These factors are shown to influence performance characteristics of a helical cross-flow turbine tested over...

The secure and haemostatic implantation of the left ventricular assist device (LVAD) apex inflow cannula can sometimes be challenging, especially in the setting of an acute myocardial infarction or significant ventricular wall thinning, when the myocardial tissue may be friable and tissue strength may be compromised. In these cases, surgical complications from this site may present a challenge....

Inflow data plays an important role in water and energy resources planning and management. In general, due to the limited availability of historical inflow data, synthetic streamflow time series have been widely used for several applications such as midand long-term hydropower scheduling and the identification of hydrological processes. This paper explores the use of fuzzy inference systems for...

The inflow problem of full compressible Navier-Stokes equations is considered on the half line (0,+∞). Firstly, we give the existence (or non-existence) of the boundary layer solution to the inflow problem when the right end state (ρ+, u+, θ+) belongs to the subsonic, transonic and supersonic regions respectively. Then the asymptotic stability of not only the single contact wave but also the su...