Front-end loaders extract sand and gravel (aggregate) from a pit and haul it to a feeder, which releases the aggregate onto a conveyor belt that is connected to a stockpile; the material is subsequently distributed to a processing plant. As mining progresses, the mining frontier moves farther away from the feeder, increasing loader cycle time. In turn, plant managers add loaders to maintain pro...

Abstract—The present work is an attempt to reduce the power loss and to improve the voltage profile on an existing 11 kV feeder by implementing different techniques. Simulations are performed using Mipower software on an existing 11 kV feeder (Aggarwal feeder) of industrial area Kapurthala. In this work effects of changing type of feeder are simulated to investigate the reduction in power loss ...

In this work, a miniature mobile vibratory parts feeder is proposed. This feeder, exploiting the unique capabilities of a recently developed closed-loop planar linear motor, is designed to reorient, singulate, and position parts using only horizontal vibrations. The actuators used for generating the feed vibrations are also capable of large planar motions, allowing the feeder to serve multiple ...

PURPOSE To report the efficacy of human bone marrow-derived mesenchymal stem cells as a source of feeder cells for the cultivation of transplantable corneal epithelial cell sheets. METHODS Human mesenchymal stem cells (marrow adherent stem cells; MASCs) were cultured in alpha-modified Eagle's medium with 10% serum and were treated with mitomycin C. Expression of cytokines in MASCs was confirm...

Genome-edited human pluripotent stem cells (hPSCs) have broad applications in disease modeling, drug discovery, and regenerative medicine. We present and characterize a robust method for rapid, scarless introduction or correction of disease-associated variants in hPSCs using CRISPR/Cas9. Utilizing non-integrated plasmid vectors that express a puromycin N-acetyl-transferase (PAC) gene, whose exp...

The foraging strategies used by animals are key to their success in spatially and temporally heterogeneous environments. We hypothesise that when a food source at a known location ceases to be available, flying insects will exhibit search patterns that optimise the rediscovery of such resources. In order to study these searching patterns, foraging honeybees were trained to an artificial feeder ...