A conical mandrel tube drawing test designed to assess failure criteria

Upper Bound Analysis of Tube Extrusion Process Through Rotating Conical Dies with Large Mandrel Radius

In this paper, an upper bound approach is used to analyze the tube extrusion process through rotating conical dies with large mandrel radius. The material under deformation in the die and inside the container is divided to four deformation zones. A velocity field for each deformation zone is developed to evaluate the internal powers and the powers dissipated on all frictional and velocity disco...

Development and validation of a questionnaire designed to assess employee satisfaction of environmental health and safety management system (HSE-MS)

Introduction: Nowadays the importance of health, safety and environment issues is becoming more important as urbanization develops and industrial units grow. Due to the lack of a standard questionnaire to assess staff satisfaction with occupational health, safety and environmental management (HSE-MS) status, the present study aimed to design and validate this tool. Methods: In this study, an i...

1 A submaximal test to assess back

A functional endurance test more specific to common occupational tasks is proposed for assessing back muscle capacity. The test involves static intermittent contractions (8-s work-rest cycles) using a predefined absolute load (90 Nm) across subjects. Since the test involved an absolute endurance task, it was hypothesized that performance would be influenced by both the strength and relative end...

criteria to assess a randomized controlled pilot study: response to letter

A new instrument to assess physician skill at chest tube insertion: the TUBE-iCOMPT.

Currently no tool exists to assess proceduralist skill at chest tube insertion. As inadequate doctor procedural competence has repeatedly been associated with adverse events, there is a need for a tool to assess procedural competence. This study aims to develop and examine the validity of a tool to assess competency at insertion of a chest tube, using either the Seldinger technique or blunt dis...