Backfilling Technique for Roadway Support by Bullflex-Tube.

Crustacean Motor Neuron Connections Traced by Backfilling for Electron Microscopy

Individual neurons can be marked by injection through a microelectrode of the fluorescent dye Procion yellow (17) or of cobalt chloride (13). These materials can also be used to study neurons which have peripheral connections by allowing the markers to move up the cut axons into the cell bodies and central processes (5, 11). This "backfilling" method is facilitated by application of electrical ...

Effect of bolting on roadway support in extremely weak rock

In mine roadway support operations, floor bolting not only played a role in floor heave control, but also in reinforcing roof and its two sides. Correspondingly, bolting of roof and two sides also played a part in floor heave control. To quantify the effect of such bolting, based on roadway support in extremely weak rock, three physical models were produced and tested in laboratory. Through com...

Tuning EASY-Backfilling Queues

EASY-Backfilling is a popular scheduling heuristic for allocating jobs in large scale High Performance Computing platforms. While its aggressive reservation mechanism is fast and prevents job starvation, it does not try to optimize any scheduling objective per se. We consider in this work the problem of tuning EASY using queue reordering policies. More precisely, we propose to tune the reorderi...

Self-Adapting Backfilling Scheduling for Parallel Systems

We focus on non-FCFS job scheduling policies for parallel systems that allow jobs to backfill, i.e., to move ahead in the queue, given that they do not delay certain previously submitted jobs. Consistent with commercial schedulers that maintain multiple queues where jobs are assigned according to the user-estimated duration, we propose a self-adapting backfilling policy that maintains multiple ...

Luminance Metrics for Roadway Lighting