Semi-analytical approaches to vibrations induced by moving loads

Semi-Analytical Approaches to Local Electroweak Baryogenesis

We examine two semi-analytical methods for estimating the baryon asymmetry of the universe (BAU) generated in scenarios of “local” electroweak baryogenesis (in which the requisite baryon number violation and CP violation occur together in space and time). We work with the standard electroweak theory augmented by the addition of a CP violating dimension six operator. We work in the context of a ...

SPINLESS SALPETER EQUATION Some (Semi-) Analytical Approaches

The eigenvalue equation of a semirelativistic Hamiltonian composed of the relativistic kinetic term of spin-0 particles and static interactions is called spinless Salpeter equation. It is regarded as relativistic generalization of the nonrelativistic Schrödinger approach, or as approximation to the homogeneous Bethe–Salpeter equation in its instantaneous limit. The nonlocality inherent to this ...

Vibrations induced by trains

This work describes a set of research studies that were made with the intent of studying vibrations created by the circulation of trains. In the last decades, the development of high-speed trains emphasized the need to closely monitor this phenomenon. The purpose of this study is to provide a state-of-the-art about data acquisition process. It also presents a new experience, including important...

On The Semi-Analytical Solution Of Beams Subjected To Distributed Loads

Groundwater Modeling: Semi-Analytical Approaches for Heterogeneity and Reaction Networks

Reactive transport modeling for heterogeneous aquifers is challenging and computationally intensive. While numerical packages allow simulation of multiple species transport with aquifer heterogeneity, run times on high speed PCs and workstations make many jobs impractical. Stream tube approaches are computationally efficient numerical methods, and offer significant advantages in run time over m...