Bone crushing habits

Drug loss while crushing tablets: Comparison of 24 tablet crushing devices

This study investigated 24 tablet crushing devices for drug loss using different methods to recover the crushed tablet. 24 devices were compared: 3 with disposable cups, 6 with disposable bags, 12 without separate vessels and 3 types of mortar and pestle. One paracetamol tablet was crushed and recovered by tapping the powder out. Where appropriate, depending on crusher size and manufacturer ins...

Complicated crushing injuries of the pelvis.

In the last two years we have seen seventy-five cases of pelvic girdle injuries with soft-tissue complications in patients admitted to the hospitals serving the African population of Johannesburg and its environs. These injuries had been caused by motor vehicle accidents, railway accidents, falls from heights, and assaults. Twenty of the patients died from their injuries, eight of them within f...

An Elastoplastic Model Considering Sand Crushing

The behavior of sand crushing will appear when the confining pressure is up to a certain value, which results in disappearing of the positive dilatancy of sand. Adopting a new hardening parameter with the crushing stress, an elastoplastic constitutive model considering sand crushing is proposed. Comparing the conventional triaxial compression test results with the model prediction, it shows tha...

Safeguarding crushing points by limitation of forces.

Limitation of forces can be a simple measure to safeguard crushing points at doors, machines, and vehicles. In this connection different standards define a threshold force value of 150 N. This widely accepted value refers to static forces only. The dynamic forces that arise from impact on a person are frequently ignored, although they are generally higher than the static forces. The article des...

Airborne Dust Liberation During Coal Crushing