Virtual quality assessment tools for material extrusion processes

HOMOTOPY PERTURBATION METHOD FOR SOLVING FLOW IN THE EXTRUSION PROCESSES

In this paper, the homotopy perturbation method (HPM) is considered for finding approximate solutions of two-dimensional viscous flow. This technique provides a sequence of functions which converges to the exact solution of the problem. The HPM does not need a small parameters in the equations, but; the perturbation method depends on small parameter assumption and the obtained results. In most ...

Virtual Reality Toolset for Material Science: NOMAD VR Tools

We describe a free-software virtual reality system which provides material scientists with a tool to more easily study simulations of chemical systems at the atomic and molecular levels, and which is compatible with the NOMAD infrastructure (an international, open repository which is developing advanced analysis techniques and contains millions of materials). The system runs on multiple virtual...

Extrusion of Ecc-material

An extrusion process especially designed for extrusion of pipes made from fiber reinforced cementitious materials has been developed at Department of Structural Engineering and Materials at the Technical University of Denmark. Engineered Cementitious Composite (ECC) materials have been developed in recent years at Department of Civil and Envirionmental Engineering, University of Michigan. These...

Quality assessment : many tools for many purposes

Design and Psychometrics of Quality of Life Assessment Tools for Patients with Hypertension

Background and Aim: Hypertension is the strongest independent and modifiable factor for heart failure, ischemic heart disease, cerebrovascular accident and chronic kidney disease worldwide, which affects the quality of life of patients. In order to accurately assess the quality of life of patients, it is necessary to design a special questionnaire consisting of different dimensions in order to ...