Secondary infall in galaxies could cause the angular momentum of the outer halo to change its orientation. The generation of warps due to this effect is studied using N-body simulations.

The design of a Time Warp simulation kernel is made dif-cult by the inherent complexity of the paradigm. Hence it becomes critical that the design of such complex simulation kernels follow established design principles such as object-oriented design so that the implementation is simple to modify and extend. In this paper, we present a compendium of our eeorts in the design and development of an...

After presenting string-like solutions with a warp factor to Einstein’s equations, we study localization of various spin fields on a string-like defect in a general space-time dimension from the viewpoint of field theory. It is shown that spin 0 and 2 fields are localized on a defect with the exponentially decreasing warp factor. Spin 1 field can be also localized on a defect with the exponenti...

Checkpointing overhead is a major obstacle for the effectiveness of Time Warp parallel discrete event simulators. Semi-asynchronous checkpointing is a recent solution to tackle this obstacle for Time Warp simulations on distributed memory systems based on Myrinet. In this solution, checkpoint operations are offloaded from the host CPU and are charged to a DMA engine on board of Myrinet network ...

The null geodesic equations in the Alcubierre warp drive spacetime are numerically integrated to determine the angular deflection and redshift of photons which propagate through the distortion of the “warp drive” bubble to reach an observer at the origin of the warp effect. We find that for a starship with an effective warp speed exceeding the speed of light, stars in the forward hemisphere wil...

This paper presents a new image morphing method using a two-dimensional deformation technique which provides an intuitive model for a warp. The deformation technique derives a C1-continuous and one-to-one warp from a set of point pairs overlaid on two images. The resulting inbetween image precisely reflects the correspondence of features specified by an animator. We also control the transition ...

This paper presents a new distributed simulation methodology for hierarchical Discrete Event System Specification(DEVS) models. The DEVS formalism provides a formal basis for specifying discrete event models in a modular, hierarchical form. For distributed simulation of DEVS models, a synchronization mechanism is required to control the advance of simulation clocks. The proposed methodology emp...

Pasting onto a deformable surfaces requires either a non-parametric warp or a high d.o.f global warp approximation. Previous works utilized techniques such as moving least squares or hierarchical big data to define a non-parametric mapping from an image to a known template. In this paper, I use Dense SIFT Flow to generate a dense pixel mapping which is used to warp regions from a mesh template ...