In general, control of metal dust from hand-held disk grinders is difficult because such respirable dust tends to disperse in every direction around the grinding wheel and cannot be captured effectively by a conventional exhaust hood. The author described the application of a custom-made tool-mounted local exhaust ventilation (LEV) system attached to a hand-held disk grinder, and by laboratory ...

A simple method for preparing chromatin assembly extracts has not been available for budding yeast. Here I describe such a method in detail. The assembly extract, a crude 100,000g supernatant, is prepared from cells disrupted in a manual or motorized grinder while they are frozen. The core histones and all soluble protein factors required for chromatin assembly under physiological conditions ar...

This article discusses the idea and set-up of a laboratory system for generating reproducible concentrated occupational aerosols containing metal compounds. A dust representative for 2 metal-machining workstations (an electric grinder and an electric disc cutter) was released from a fluidized-bed generator, and then sampled and compared in respect to concentration, particle size distribution, p...

We describe a case of intracranial carotid artery occlusion due to penetrating craniofacial injury by high velocity foreign body that was relieved by decompressive surgery. A 46-year-old man presented with a penetrating wound to his face. A piece of an electric angular grinder disc became lodged in the anterior skull base. Computed tomography revealed that the disc had penetrated the unilateral...

The efficiency of the process grinding meat and bone feed depends on a number design technological parameters grinder operation. One most significant issues at same time least studied one is influence cycles loading with working bodies grinders particle size finished feed. To study this issue, authors proposed method for modeling using stochastic B-model cumulative damage, which based an unders...