Let G be a finite group generated by reflections. It is shown that the elements of G can be arranged in a cycle (a "Gray. code") such that each element is obtained from the previous one by applying one of the generators. The case G = d[ ' yields a conventional binary Gray code. These generalized Gray codes provide an efficient wa), to run through the elements of any finite reflection group.

During the “life” of an industrial plant, many changes happen. Starting from an initial configuration of production lines, manufacturing and assembly departments, tools and equipment rooms, the plant layout could change because of new and different needs. Often, the above layout modifications are not correctly studied and optimized, causing problems in the management of worker movement and mate...

The present paper aims to investigate the effects of modularity and the layout of subsystems and parts of a complex system on its maintainability. For this purpose, four objective functions have been considered simultaneously: I) maximizing the level of accordance between system design and optimum modularity design,II) maximizing the level of accessibility and the maintenance space required,III...

This report provides information and comment on a number of practical aspects of the line intersect method, including specific equations for volume and weight for various sets of units; problems of orientation bias and sample layout; diameter-class limits and centres; use of the method to determine total length of pieces or networks and piece-length distribution; sample size, length of line, an...

Spectral methods are naturally suited for dynamic graph layout because, usually, moderate changes of a graph yield moderate changes of the layout. We discuss some general principles for dynamic graph layout and derive a dynamic spectral layout approach for the animation of small-world models. Article Type Communicated by Submitted Revised Regular paper P. Eades and P. Healy January 2006 January...

MUMmerGPU uses highly-parallel commodity graphics processing units (GPU) to accelerate the data-intensive computation of aligning next generation DNA sequence data to a reference sequence for use in diverse applications such as disease genotyping and personal genomics. MUMmerGPU 2.0 features a new stackless depth-first-search print kernel and is 13× faster than the serial CPU version of the ali...

The key issues associated with the three maintenance approaches envisaged for the Compact Stellarator (CS) power core have been identified and addressed, and the layout of coil system, coil supporting structure, cryostats, vacuum vessel and maintenance ports have been conceptually defined. These are summarized in this paper. Blanket concepts compatible with the three maintenance approaches have...

This paper analyzes the performance of a robotic system with two machines in which machines are configured in a circular layout and produce non-identical parts repetitively. The non-destructive testing (NDT) is performed by a stationary robotic arm located in the center of the circle, or a cluster tool. The robotic arm integrates multiple tasks, mainly the NDT of the part and its transition bet...