Photonic crystals have been studied extensively for their potential to control and manipulate light, similar to the way electrons are controlled in a semiconductor, opening the door to high-speed, low-power, all-optical devices. A common method for fabricating 3D photonic crystals is the infiltration and subsequent inversion of synthetic opal templates to create inverse opals consisting of air ...

We quantitatively analyze the structure of thin film inverse-opal photonic crystals composed of ordered arrays of air pores in a background of titania. Ordering of the sphere template and introduction of the titania background were performed simultaneously in the thin film photonic crystals. Nondestructive optical measurements of backfilling with high refractive index liquids, angle-resolved re...

Au/octadecanethiol/GaAs devices were prepared using different metallization conditions: direct deposition at 77 K and 300 K samples, and indirect deposition (Ar backfilling). Time-of-flight secondary ion mass spectrometry data indicate that !4x and !2x more gold penetrates through the SAM after direct deposition at 300 K and 77 K, respectively, than under Ar backfill conditions. However, these ...

Applying gang scheduling can alleviate the blockade problem caused by exclusively used space-sharing strategies for parallel processing. However, the original form of gang scheduling is not practical as there are several fundamental problems associated with it. Recently many researchers have developed new strategies to alleviate some of these problems. Unfortunately, one important problem has n...

Many commercial job scheduling strategies in multi processing systems tend to minimize waiting times of short jobs. However, long jobs cannot be left aside as their impact on the performance of the system is also determinant. In this work we propose a job scheduling strategy that maximizes resources utilization and improves the overall performance by allowing jobs to adapt to variations in the ...

Abstract Studies in recent decades demonstrate the significant effect of stress configuration (e.g., vertical and lateral confinement) on shear strength or, this study, cone penetration test (CPT) results. Addition a surcharge over ground changes condition, consequently, CPT tip resistance. In results different CPTs conducted before after backfilling with various thicknesses land development pr...

Grid is distributed computing infrastructure for advanced science and engineering that runs over the internet, potentially worldwide. Grid is highly controlled, with resource providers and consumers defining what is shared and the conditions of sharing. The goal of Grid computing is to create the delusion of a simple but large and powerful self-managing virtual computer out of a large collectio...

Detailed neuroanatomical information is an essential prerequisite for functional analysis of specific neurones in the central nervous system. In this investigation we have combined the dissection of single axons with cobalt-backfilling to reveal the structural organisation of a class of interganglionic giant interneurones in the central nervous system of the cockroach, Periplaneta americana (L)...

This paper addresses the problem of how a group of agents cooperating on a complex plan with interdependent actions can coordinate their scheduling and execution of those actions, particularly in domains where actions may fail or have uncertain durations. If actions fail (or fail to meet their deadlines), the repercussions for the rest of the team’s plan can be dramatic. This paper presents a p...