There is a resurgence of interest in Fixed Field Alternating Gradient (FFAG) accelerators, both in the traditional “scaling” and in novel “non-scaling” machines. We focus on the variable-tune linear-field FFAG which offers very high momentum compaction. Muons require fast acceleration to avoid decay losses; this necessitates using superconducting magnets and cavities whose field and frequency a...

All kinematic studies of human motion employ measurement techniques which introduce noise into displacement data. Commonly, the data, as time related functions, are differentiated to produce velocity and acceleration information. Unfortunately, differentiation amplifies the noise present to such an extent that additional signal treatment is essential. The study was conducted to compare film gen...

Linear acceleration theorems are known for most computational models. Although such results have been proved for two-dimensional cellular automata working on specific neighborhoods, no general construction was known. We present here a technique of linear acceleration for all twodimensional languages recognized by cellular automata working on complete neighborhoods. 1998 ACM Subject Classificati...

This study was to evaluate the proposed consecutive multishot echo planar imaging (cmsEPI) combined with a parallel imaging technique in terms of signal-to-noise ratio (SNR) and acceleration for a functional imaging study. We developed cmsEPI sequence using both consecutively acquired multishot EPI segments and variable flip angles to minimize the delay between segments and to maximize the SNR,...

This paper presents a novel approach to online, robot-motion planning for multiple movingobjects interception with constant acceleration. The position, velocity and acceleration of the free particles are used as kinematics information. This information is used to obtain the multiple interception trajectory. The polynomial interpolation technique is implemented in a 2D robot with to follow the f...

We introduce some inexact versions of the minimal residual smoothing (IMRS) technique to accelerate the standard multigrid convergence. These are modiied versions of the minimal residual smoothing (MRS) technique introduced in an earlier paper 26]. The IMRS acceleration schemes minimize the residual norm of the multigrid iterate in a subspace and reduce the cost of the standard MRS acceleration...

We present an image-space acceleration technique that allows real-time direct volume rendering of large unstructured volumes. Our algorithm operates as a simple post-process and can be used to improve the performance of any existing volume renderer that is sensitive to image size. A joint bilateral upsampling filter allows images to be rendered efficiently at a fraction of their original size, ...

PURPOSE We propose a compressed-sensing (CS) technique based on magnitude image subtraction for high spatial and temporal resolution dynamic contrast-enhanced MR angiography (CE-MRA). METHODS Our technique integrates the magnitude difference image into the CS reconstruction to promote subtraction sparsity. Fully sampled Cartesian 3D CE-MRA datasets from 6 volunteers were retrospectively under...