reactive power management plays an essential role in the secure operation of the power system as an ancillary service. although in electricity markets, the particular attention is paid to active power, the reactive power also plays an important on total generation costs of electricity. on the other hand, as it is mainly confined to local consumption, to avoid market power and maintain the secur...

In the present paper, the Zelt algorithm has been extended for ray tracing through an anisotropic model. In anisotropic media, the direction of the propagated energy generally differs from that of the plane-wave propagation. This makes velocity values to be varied in different directions. Therefore, velocity modeling in such media is completely different from that in an isotropic media. The vel...

Determining early specular reflection paths is essential for room acoustics modeling. Beam tracing algorithms have been used to calculate these paths efficiently, thus allowing modeling of acoustics in real-time with a moving listener in simple, or complex but densely occluded, environments with a stationary sound source. In this paper it is shown that beam tracing algorithms can still be optim...

Gradient-domain path tracing has recently been introduced as an efficient realistic image synthesis algorithm. This paper introduces a bidirectional gradient-domain sampler that outperforms traditional bidirectional path tracing often by a factor of two to five in terms of squared error at equal render time. It also improves over unidirectional gradient-domain path tracing in challenging visibi...

The ray buuer algorithm presented here is part of an alternative strategy of ray tracing called breadth rst ray tracing. Breadth rst ray tracing diiers from usual pixel-wise rendering in tracing whole generations of rays together. This means that rst all rays of view are treated, next the set of re-ecting and refracting rays, then the reeecting and refracting rays caused by them, and so on. The...

We propose a public-key traitor tracing scheme in which (1) the size of a ciphertext is sublinear in the number of receivers and (2) black-box tracing is efficiently achieved against self-defensive pirate decoders. When assuming that a pirate decoder can take some self-defensive reaction (e.g., erasing all of the internal keys and shutting down) to escape from tracing if it detects tracing, it ...

Under the conditions of fasting moving, shape changing and partial occlusion of target, Now mostly tracing algorithms are difficult to get accurate contour of target, for these problems, a novel contour tracing algorithm based on particle filter and fast level set is proposed. Firstly, the particle filter algorithm is adopted to estimate moving target's boundary contour. Then, according to the ...

The lane-tracing algorithm is a reduced-space LR(1) parser generation algorithm. The previous version of lane-tracing algorithm regenerates states involved in reduce/reduce conflict by employing the practical general method. In this paper we describe an alternative lane-tracing approach, which regenerates states based on the lane table method. We discuss the details of this new algorithm, study...