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 ...

The utilization of parallel computers depends on how jobs are packed together: if the jobs are not packed tightly, resources are lost due to fragmentation. The problem is that the goal of high utilization may conflict with goals of fairness or even progress for all jobs. The common solution is to use backfilling, which combines a reservation for the first job in the interest of progress with pa...

Graded porous inorganic materials directed by macromolecular self-assembly are expected to offer unique structural platforms relative to conventional porous inorganic materials. Their preparation to date remains a challenge, however, based on the sparsity of viable synthetic self-assembly pathways to control structural asymmetry. Here we demonstrate the fabrication of graded porous carbon, meta...

In order to investigate the high volume fraction problem of the solid phase in superfine unclassified backfilling pipeline transportation, characteristic parameters were obtained by fitting to test data with an R–R particle size distribution function; then, a Euler dense-phase DPM (Discrete phase model) model was established by applying solid–liquid two-phase flow theory and the kinetic theory ...

As a new collaborative mining technology, the integration of mining-separating-backfilling (IMSB) enables coal industry to realize safe, efficient, and green resources at expense making underground mine production more complex. In mining, primary problem is eliminate logistics system bottleneck increase output. The key synergetic that capacity fully mechanized face should match raw separating g...

Job scheduling policies for HPC centers have been extensively studied in the last few years, specially backfilling based policies. Almost all of these studies have been done using simulation tools. All the existent simulators use the runtime (either estimated or real) provided in the workload as a basis of their simulations. In our previous work we analyzed the impact on system performance of c...

This paper presents a set of strategies for scheduling a stream of batch jobs on the machines of a heterogeneous computational farm. Our proposal is based on a flexible backfilling, which schedules jobs according to a priority assigned to each jobs submitted for the execution. Priority values are computed as a result of a set of heuristics whose main goal is both to improve resources utilizatio...