In this paper it is shown that the recently proposed port-controlled Hamiltonian systems with dissipation precisely dualize the classical Brayton-Moser equations. As a consequence, useful and important properties of the one framework can be translated to the other. For both frameworks a novel method is proposed to deal with networks containing capacitor-only loops or inductor-only cutsets using...

Multi-port energy routers are a core device that integrates distributed sources and enables energy-to-energy interconnections. For the routing system, construction of its topology, establishment internal model switching control common bus voltage stability key elements research. In this paper, five-port router structure is proposed, including PV port, an storage grid-connected DC load AC port. ...

In this paper we study the local activity, local passivity and edge of chaos of continuous-time reaction–diffusion cellular nonlinear networks (CNN) with one-port first-order, one-port secondorder, two-port second-order, two-port third-order and three-port third-order cells. We prove that the local passive regions determined by cell impedance ZQ(s) and cell admittance YQ(s) for firstand second-...

injection port resulted in an immediate reduction of the pressure to 16-20 mm Hg. (By inserting the manometer adapter into the injection port, the one-way function of the valve was cancelled and flow occurred from cuff to external balloon.) In view of this serious potential for undetected clinical abuse, we feel that the controlled pressure cuff system does not replace the need for frequent mon...

Port-Hamiltonian systems (PHS) are an extension of Hamiltonian systems, which represent open passive systems which are structured according to their conservative and dissipative parts, as well as the external sources. They are widely used in engineering as a central tool for the modelling of physical systems, their passive-guaranteed simulation, as well as for control issues, see e.g. [1]. In t...

This paper presents an extension of the BIP component framework to hierarchical components by considering also port sets of atomic components to be structured (ports may be in conflict or ordered, where a larger port represents an interaction set with larger interactions). A composed component consisting of a set of components connected through BIP connectors and a set of ports representing a s...

Ports play an essential role in economic and trade, which is important node hub cargo transportation. The evaluation index of port competitiveness the efficiency collection distribution system. This paper analyzes development trend According to principle establishing index, a reasonable system transportation constructed. as whole. capacity, service level, coordination ability with external cond...

Space switches suffer from external blocking because of output port contention. We review contention resolution methods used to avoid external blocking, and choose a solution based on ring reservation, resulting in an elegant and efficient mechanism requiring only nearest-neighbor communications. In addition to external blocking, space switches suffer from head-of-line (HOL) blocking, and we pr...

THE TERN[ "HEMORRHOID" iS derived f rom the Greek (haima blood; rhoos = flowing) and was first used by Hippocrates in his treatises.n 2 T h e word "pile" (Latin pila, a ball) was used in the writings of John Arderne. 3 Hemorrhoids, which are varicosities of the hemorrhoidal veins, may be internal or external. In ternal hemorrhoids occupy the submucous space proximal to the dentate line. T h e l...

PURPOSE To present our results after short-term (1 month) intra-arterial infusion therapy of PGE₁-alprostadil via a port system implanted in the ipsilateral external iliac artery (EIA) in patients with severe rest pain. METHODS Ten patients with severe rest pain were included. All patients showed extensive peripheral vascular disease below the knee. The tip of the catheter was introduced via ...