due to the changes which may occur in their parameters, systems are usually demonstrated by some subsystems for different conditions. this paper employs modified petri nets (mpn) to model theses subsystems and makes it simple to analyze them. in this method, first, the continuous transfer function is converted to a discrete transfer function and then, by mpn, system is modeled and analyzed. all...

BACKGROUND Different studies show evidence that several unicellular organisms display a cellular metabolic structure characterized by a set of enzymes which are always in an active state (metabolic core), while the rest of the molecular catalytic reactions exhibit on-off changing states. This self-organized enzymatic configuration seems to be an intrinsic characteristic of metabolism, common to...

The Device Remote Monitoring System (DRMS) based on network is designed and implemented in order to integrate the decision making level, the monitoring level and the field level together effectively, whose architecture is the hierarchical control architecture including three layers: low-layer, mid-layer and upper-layer. The low-layer is the multimedia fieldbus system (MFS), the mid-layer is the...

Semaphorins exert their effects in neuronal and non-neuronal processes by binding with receptors. Both in vitro and in vivo studies have shown that plexin-As (plexin-A1, plexin-A1 and plexin-A1) and neuropilins (Npn-1 and Npn-2) are the binding moieties for class-III semaphorins. These receptors are expressed in a spatially and temporally discontinuous manner during organogenesis and central ne...

In this paper, we investigate integral input-to-state stability for interconnected discrete-time systems. The system under consideration contains two subsystems which are connected in a feedback structure. We construct a Lyapunov function for the whole system through the nonlinearly-weighted sum of Lyapunov functions of individual subsystems. We consider two cases in which we assume that one of...

Dissolving microneedles (dMNs) are promising versatile drug delivery systems for the transdermal of numerous drugs, enabling their use in a wide range biomedical and pharmaceutical applications. Being made water-soluble polymers, dMNs own several advantages, including fast dissolution short application time which enhance patients’ compliance minimize damage to skin tissue. Moreover, they posses...

The article examines the methodology of economic analysis in bioeconomy management system and sustainable development business structures format organizational mechanism, which includes following subsystems: performance-target, functional (general, special), providing, adaptive subsystems verification subsystem. role components are defined these subsystems. In context effective functioning mech...