This paper concerns the feasibility of Fast Active Power Regulation (FAPR) in renewable energy hubs. Selected state-of-the-art FAPR strategies are applied to various controllable devices within a hub, such as solar photovoltaic (PV) farm and an electrolyzer acting responsive load. Among selected droop-based FAPR, droop derivative-based virtual synchronous power (VSP)-based FAPR. The FAPR-suppor...

The frequency stability of the power system is challenged by high penetration electronic interfaced renewable energy sources (RES). This paper investigates improvements response fully decoupled wind generators (FDWG) proposing a novel generic model implementation ultracapacitors (UC) within hybrid scheme in real-time simulations plants. UCs are selected as ideal fast active power-frequency cont...

Hybrid electric propulsion systems are interesting solutions to increase the energy efficiency of the road transportation technology. In this paper, several series hybrid propulsion system topologies are analysed in the Vehicle Simulation Programme (VSP). Especially the use of a DC/DC converter connected between the DC-bus and a energy source like a battery or the fuel cell stack, the supercapa...

Angiotensin converting enzyme (ACE) regulates blood pressure (BP) by hydrolytic actions. ACEinhibitors are widely used in the pharmacological treatment of hypertension. Certain food-derived peptides can also inhibit the activity of ACE. This study shows the occurrences of known ACE-inhibitory peptides in cereal storage protein structures. A literature search yielded thirty-nine candidate peptid...

Insect-killing (entomopathogenic) fungi have high potential for controlling agriculturally harmful pests. However, their pathogenicity is slow, and this is one reason for their poor acceptance as a fungal insecticide. The expression of bumblebee, Bombus ignitus, venom serine protease (VSP) by Beauveria bassiana (ERL1170) induced melanization of yellow spotted longicorn beetles (Psacothea hilari...

The Virtual SpacePlane (VSP) is a realistic prototype of the Manned SpacePlane (MSP) and simulates a number of the MSP missions in a realistic manner. To increase the realism of the space environment and space mission planning, we inserted a portrayal of space weather into the VSP’s virtual environment. In this paper we present background on the VSP project, space weather, and describe the requ...

The vertex separator problem (VSP) in an undirected connected graph G = (V,E) asks for a partition of V into nonempty subsets A, B, C such that |C| is minimized subject to there is no edge between A and B, and max{|A|, |B|} ≤ β(n) with β(n) integer such as 1 ≤ β(n) ≤ n. We investigate the (VSP) in a polyhedral way, starting from the formulation given by E. Balas and C. De Souza [1]. We introduc...

Allostery provides a critical control over enzyme activity, biasing the catalytic site between inactive and active states. We found that the Ciona intestinalis voltage-sensing phosphatase (Ci-VSP), which modifies phosphoinositide signaling lipids (PIPs), has not one but two sequential active states with distinct substrate specificities, whose occupancy is allosterically controlled by sequential...