background : the short form health survey (sf-36) and who quality of life-bref (whoqol-bref) questionnaires are two common tools to assess changes in quality of life (qol) over the course of treatment, especially in patients with coronary artery disease (cad). however, the value of these two instruments among cad patients has not been studied and compared. the objective of the present study was...

Abstract This paper analyses the use of design methods and information communication technology (ICTs) tools in sprint (DS) activities. Team members, team leaders, coaches five international student teams were interviewed (40 interviews total) regarding their ICT during three DS activities: problem definition, conceptual design, embodiment design. The results show that utilise various through a...

Due to the expected rise in defect rate of devices in a nanotechnology based digital system, tools and techniques to build reliable architectures is gaining importance. In this paper, we propose an automated environment for reliability analysis and insertion of adequate redundancy for reliability enhancement. The input to this prescribed design flow is the architectural description of a non-red...

To maintain a competitive edge in global market, manufacturing enterprises must leverage their digital information assets, which include a tremendous amount of engineering data: CAD models, FEM analysis, tolerances, annotations, etc.. An emerging technology called Digital Master embeds all the engineering knowledge about a product into its CAD model. Tools and process to efficiently manage, dis...

A new system for defining geometry based on feature s of a finite element mesh is described. A systemat ic approach to building a complete geometric and topologic representation of a model given only the finite element description i s proposed. Geometry and topology entities including volumes, surfaces, curv es and vertices, can be implied based on user defin ed boundary conditions or surface f...

Using CAD data for analysis is becoming more common, but is still fraught with dirty geometry problems such as slivers, cross-overs, minute edge lengths, stray points ‘on the moon’, wonderful clean-asa-whistle models that are useless for meshing, patchworks of faces that attract unnecessary elements, birdsnests of draughting geometry stuck in a corner, etc. Even if binary, native CAD files are ...

Due to the development of science and technology, the computer has become a useful tool for supporting engineering activities in product design. Many computer aided tools such as CAD/CAM, product data management (PDM), product life cycle assessment (PLA), etc., have been popularly used in industry for reducing product development lead-time and increasing total product quality. However, the nume...

Agent-based, decision-support systems provide human decision-makers with a means of solving complex problems through collaboration with heterogeneous collections of both human and computer-based expert agents. Over the past decade the Collaborative Agent Design (CAD) Research Center has developed several proof-of-concept and production-oriented agent-based, decision-support systems for both com...