We argue that the closed string energy in the bulk bouncing tachyon background is to be quantised in a simple manner as if strings were trapped in a finite time interval. We discuss it from three different viewpoints; (1) the timelike continuation of the sinhGordon model, (2) the dual matrix model description of the (1+ 1)-dimensional string theory with the bulk bouncing tachyon condensate, (3)...

In a multi-secret sharing scheme, several secret values are distributed among a set of n participants.In 2000 Chien et al.'s proposed a (t; n) multi-secret sharing scheme. Many storages and publicvalues required in Chien's scheme. Motivated by these concerns, some new (t; n) multi-secret sharingschemes are proposed in this paper based on the Lagrange interpolation formula for polynomials andcip...

• A security-based model is proposed for the scheduling of BES in joint energy and reserve markets. The coupling between security management problems analyzed. pre post contingency intervals are modeled. frequency excursion rate change considered as constraints optimization problem. By using battery storage (BES) a fast, reliable, controllable resource, system operator can compensate power mism...

This study investigates and compares the various combinations of renewable energies (solar, wind) storage technologies (battery, pumped hydro storage, hybrid storage) for an off-grid power supply system. Four configurations (i.e., single RE source system, double system) based on two scenarios (self-discharge equal to 0% 1%) are considered, their operational performance is compared analyzed. The...

Increasing the usage of renewable energy and electromobility are high priority goals for several countries and organisations. Energy from renewable energy sources, like wind and solar, have disadvantages of being highly variable and volatile. Furthermore, the occurrence of renewable energy and energy demand is asynchronous. This aggravates any successful integration of renewable energy sources ...

Recycling process is one of the most important processes in the trend of sustainable development,a logical reaction against the problems that results from industrial age. Building materials can play an important rolein the process of a building formation or destruction, in fact, materials forms the building nature. Thus, the role ofmaterial and the impact of its recycling in sustainable develop...

Background Due to the war, medium voltage networks are in an extremely difficult condition, they have a high degree of depreciation electrical equipment and low level automation. The energy system Ukraine has problem modernizing transfer them new class rated 20 kV.
 Objective Overall overview kV organization their topology with renewable sources " storages ". 
 Methods A network model...