A criterion for identifying vortex ring pinch-off based on the Lagrangian coherent structures (LCSs) in the flow is proposed and demonstrated for a piston-cylinder arrangement with a piston stroke to diameter (L/D) ratio of approximately 12. It is found that the appearance of a new disconnected LCS and the termination of the original LCS are indicative of the initiation of vortex pinch-off. The...

BACKGROUNDS & OBJECTIVE End-stage renal disease (ESRD) frequently causes Protein Energy Wasting (PEW), which is an important morbidity and mortality factor. Although it is difficult to assess PEW with a reliable method, there are various methods such as Handgrip strength test (HST), serum albumin, cholesterol, etc. HST is a simple and reliable antropometric method which is used for nutritional ...

This paper introduces a methodology for the heat integration of industrial batch processes. Based on Pinch Analysis principles, this methodology resorts to intermediate heat storage to prevent adverse effects on the operating flexibility. A systematic procedure, backed with a graphical representation, allows the determination of the minimum number of heat storage units and their range of feasib...

Integrated Process Design aims at a holistic approach to process design, retrofitting, and operations planning. Cost and energy ‘‘targets’’ (i.e. the minimum possible values for these objectives) can be calculated based on pinch technology, which defines the enthalpy at which the hot and cold process streams are separated by the minimum temperature difference in heat exchanger networks. This ap...

When a liquid drop falls from a fluid source with a slow flow rate, it remains attached to the source by an elongating liquid filament until the filament pinches off. For many fluids, this pinch-off occurs first near the end of the filament, where the filament joins to the liquid drop. For other fluids, the filament pinches off at one or more interior points. In this paper, we study the motion ...

The paper extends the current known tables of Fermat’s pseudoprimes to base 3 with the bound of 10. The paper is motivated by works of C. Pomerance (1980), G. E. Pinch (2000), William Galway (2002) and Jan Feitsma (2009) who provided tables of pseudoprimes with base 2 up to 10 (Pinch), 10 (Galway) and 10 (Feitsma).

Integrin-linked kinase (ILK) is an essential component of a multiprotein complex that links actin to the plasma membrane. Here, we have used a genetic approach to examine the molecular interactions that are essential for the assembly of this ILK-containing complex at Drosophila muscle attachment sites (MASs). We show that, downstream of integrins, talin plays a decisive role in the recruitment ...

Shortcut methods are valuable tools in the early stages of chemical process design, where numerous flowsheet alternatives need to be evaluated to determine the most energy-efficient, feasible flowsheet. Various shortcut methods based on tray-to-tray calculation and pinch point analysis for the inspection of feasibility and the determination of the minimum energy demand (MED) for homogeneous non...