A secret sharing scheme is a cryptographic protocol by means of which a dealer shares a secret among a set of participants in such a way that it can be subsequently reconstructed by certain qualiied subsets. The setting we consider is the following: in a rst phase, the dealer gives in a secure way a piece of information, called a share, to each participant. Then, participants belonging to a qua...

Hybrid AC/DC microgrids facilitate the procedure of DC power connection into the conventional AC power system by developing the distributed generations (DGs) technologies. The conversion processes between AC and DC electrical powers are more convenient by hybrid systems. In this paper, an energy management system (EMS) for a hybrid microgrid network is proposed due to the optimal utilization of...

Protocols are developed and analyzed for transmitting a secret bit between a sender and a receiver process using only the information contained in a random deal of hands of specified sizes from a deck of n distinct cards. The sender’s and receiver’s algorithms are known in advance, and all conversation between sender and receiver is public and is heard by all. A correct protocol always succeeds...

The car industry is confronted with fundamental changes in society, technology and economy and forced to rethink its concept of mobility. Through constant strategic foresight, trend management and a holistic mobility vision, car manufacturers must develop innovative strategies that reflect current and future trends, in order to meet customer needs, technological standards and economic imperativ...

This paper provides a novel hierarchical control for VSI-based microgrids. The advantage of the provided control scheme is to maintain the frequency and voltage stability and load sharing against large-signal disturbances. A hierarchical control, consisting of three levels, is described. A new control loop based on PI controller, is presented. The new control loop has a great impact on increasi...

Ratings are critical to the function and success of services in the emerging sharing economy. They are a means through which users develop trust in one another and in the services themselves. Ratings are designed to give users a proxy for the expected quality and risk of potential online transactions. We expect online ratings to reflect an objective measure of quality, but such evaluations in f...

A novel parallel current-sharing control method of switch power supply is proposed, on the basis of a detailed analysis of several common parallel current-sharing control methods and recent related patents. Only the current of switch power modules with maximum and minimum output current will be regulated, which is selected by the extreme current selection circuit in this method. Four cases with...

This paper contains a control scheme for power sharing in islanded microgrids with invertersourced distributed energy resources that combines robust control and droop control. As the load within the microgrid changes, the inverter-sourced generators share the change in the load; this paper shows that the uncontrolled load sharing among the generators will be arbitrary and methods such as droop ...

Energy-awareness is an important design criterion for many mobile real-time applications such as phones, handhelds or cars. Normally, high-computing power excludes low electrical power consumption. However, with the two methods of space-sharing and adaptive clocking that are proposed in this paper, both can be reconciled. Space-sharing is an alternative design methodology for embedded systems t...