We discuss the origin of the difference between the harmonic value of the width of the multiphonon giant resonances and the smaller observed value. Analytical expressions are derived for both the effective width and the average cross-section. The contribution of the Brink-Axel mechanism in resolving the discrepancy is pointed out. . ∗Supported in part by CNPq and FAPESP.

As additional multiple-point statistical (MPS) algorithms are developed, there is an increased need for scientific ways for comparison beyond the usual visual comparison or simple metrics, such as connectivity measures. In this paper we start from the general observation that any (not just MPS) geostatistical simulation algorithm represents two types of variability: 1) the within-realization va...

This paper is about an efficient implementation of adaptive filtering for echo cancelers. The first objective of this paper is to propose a simplified method of the flexible block Multi-Delay Filter (MDF) algorithm in the time-domain. Then, we will derive a new method for the stepsize adaptation coefficient. The second objective is about the realization of a Block Proportionate Normalized Least...

The graph realization problem is to find for given nonnegative integers a1, . . . , an a simple graph (no loops or multiple edges) such that each vertex vi has degree ai. Given pairs of nonnegative integers (a1, b1), . . . , (an, bn), (i) the bipartite realization problem ask whether there is a bipartite graph (no loops or multiple edges) such that vectors (a1, ..., an) and (b1, ..., bn) corres...

Abstract In the context of advancing integration power source network load storage and multi-energy complementary development, it is necessary to optimize source, grid side, side resources build a new system with high degree storage. The article analyzes adjustable distribution. scenario multi-layer collaborative control, access methods are divided around resource types response characteristics...