In this paper, we report on progress that has been made in beam dynamics simulation, from light sources to colliders, during the first year of SciDAC-II accelerator project, “Community Petascale Project for Accelerator Science and Simulation (ComPASS)”. Several parallel computational tools for beam dynamics simulation will be described. A number of applications in current and future accelerator...

We discuss recent activities in the SciDAC Applied Math Institute for Combinatorial Scientific Computing and Petascale Simulations (CSCAPES).

Tomotherapy is the delivery of intensity modulated radiation therapy using rotational delivery of a fan beam in the manner of a CT scanner. In helical tomotherapy the couch and gantry are in continuous motion akin to a helical CT scanner. Helical tomotherapy is inherently capable of acquiring CT images of the patient in treatment position and using this information for image guidance. This revi...

Recently we have proposed the algorithm for the problem of image inpaiting (filling in occluded or damaged parts of images). This algorithm was based on the criterion spectrum entropy and showed promising results despite of using hand-crafted representation of images. In this paper, we present a method for solving image inpaiting task based on learning some image representation. Some results ar...

This paper introduces techniques for interactive navigation within large sets of bibliographic data. The main conceptual idea is to use various relations between the entries to navigate within the information space. A visualization that supports both the display of the data itself and the relations is introduced. Interaction techniques offer possibilities to follow relations and, thus, create n...

We have investigated the activated adsorption of methane on Pt(1 1 1) by the combination of a supersonic molecular beam and in situ high-resolution X-ray photoelectron spectroscopy at the German synchrotron radiation facility BESSY II. On exposing the surface to a methane beam with kinetic energies between 0.30 and 0.83 eV, CH3 is formed as a stable species at 120 K; upon heating, at around 260...

introduction: in order to cope with the crisis of serials cost and problems associated with the shortage of budget in libraries and facilitating the access to scientific journals, the principle of open access to scientific publications and usually in the form of electronic journals has evolved during the last 15 years. this research aimed to clarifying the amount of citations of isi web of scie...