In this paper, several numerical aspects of an existing model for fully nonlinear waves are improved and validated to study wave breaking due to shoaling over a gentle plane slope and wave breaking induced by a moving lateral boundary. The model is based on fully nonlinear potential flow theory and combines a higher-order Boundary Element Method (BEM) for solving Laplace’s equation at a given t...

Abstract To improve the accuracy of mechanical fault diagnosis operating mechanism and fully exploit characteristic information in vibration signal high-voltage circuit breaker, a method breaker based on deep self-encoding network is proposed. First, switch extracted, wavelet packet conversion performed, each frequency band divided into equal times. The energy time–frequency subplane then calcu...

Resumo. In this work we carried out the modelling, the discretization and the numerical simulation of a vacuum breaker. We present a mathematical model of the multi-physical problem involving mechanical, electrical and electromagnetic phenomena. The finite element method is employed in conjunction with a technique of domain decomposition to solve the mechanical problem and the electrical proble...

We review the data structures that have been proposed for one-dimensional packet classification. Our review is limited to data structures for the case when ties among the rules that match an incoming packet are broken by selecting the matching rule that is most specific. For the case when the rule filters are destination-address prefixes or are nonintersecting ranges, this tie breaker correspon...

We study the (1 : b) Maker–Breaker component game, played on the edge set of a d-regular graph. MAKER’s aim in this game is to build a large connected component, while BREAKER’s aim is to not let him do so. For all values of BREAKER’s bias b, we determine whether BREAKER wins (on any d-regular graph) or MAKER wins (on almost every d-regular graph) and provide explicit winning strategies for bot...

In a polyomino set (1,2)-achievement game the maker and the breaker alternately mark one and two previously unmarked cells respectively. The maker's goal is to mark a set of cells congruent to one of a given set of polyominoes. The breaker tries to prevent the maker from achieving his goal. The teams of polyominoes for which the maker has a winning strategy is determined up to size 4. In set ac...

We present a general approach connecting biased Maker-Breaker games and problems about local resilience in random graphs. We utilize this approach to prove new results and also to derive some known results about biased Maker-Breaker games. In particular, we show that for b = Θ( n lnn), playing a (1 : b) game on E(Kn), Maker can build a graph which contains copies of all spanning trees having ma...

The fault current development in a circuit breaker during a pole-to-ground fault is analyzed for a generic multiterminal HVDC system based on Voltage Source Converters. The paper aims to contribute to the current discussion of which requirements on breaking time and peak current HVDC circuit breakers need to fulfill in such networks either based on OHLs or cables. Therefore, the fault current i...

A Graph Construction Game is a Maker-Breaker game. Maker and Breaker take turns in choosing previously unoccupied edges of the complete graph KN . Maker’s aim is to claim a copy of a given target graph G while Breaker’s aim is to prevent Maker from doing so. In this paper we show that if G is a d-degenerate graph on n vertices and N > d2n, then Maker can claim a copy of G in at most d2n rounds....

A derivation of the dynamic model a medium voltage vacuum circuit breaker and induction motor in space vectors coordinates αβ0 allow us to switching transients various states motor. In case Clark transformation, corresponding numerical integration technique can be selected including variable time-step techniques avoid instabilities due stiffness system. Assymetrical operations such as cause pow...