this paper addresses the concept of co 2 laser beam machining (lbm) and development of intelligent knowledge base system (ikbs) for co 2 lbm. feature based design is used for acquiring design specification. for optimization of laser beam machining computer based concurrent engineering environment is used. the ikbs is linked to feature base cad system. the ikbs is also linked to material databas...

Innovations in network and information technology have transformed traditional classroom lectures into new approaches that have given universities the opportunity to create a virtual laboratory. However, there is no systematic framework in existing approaches for the development of virtual laboratories. Further, developing a virtual laboratory from scratch is time consuming and costly. This art...

engineering design processes. Among these models, one of the most widely known is perhaps the one proposed by Pahl and Beitz [42]. It presents a systematic engineering design approach including four core design phases: product planning and clarifying the task, conceptual design, embodiment design, and detail design. Similarly, Ulrich and Eppinger [43] introduce a more refined design process by ...

In this paper, we analyze system-level design methodologies for platform-based design. Platform-based design is popular as a way to reduce development time, but creating the platform is difficult. We introduce the first generation dilemma problem --initial designs are much harder because we do many of the components that will be used to build the system. We explain the origin of this problem an...

This paper presents the development of an Intelligent Cavity Layout Design System (ICLDS) for multiple cavity injection moulds. The system is intended to assist mould designers in cavity layout design at concept design stage. The complexities and principles of cavity layout design as well as various dependencies in injection mould design are introduced. The knowledge in cavity layout design is ...

a new type of backbone robot is presented in this paper. the core idea is to use a cross shape mechanism with the principle of functioning of the scissors linkages, known as a pantograph. although this continuum arm acts quite similar to tendon-driven robot, this manipulator does not include any tendon in its structure. this design does not suffer from the weaknesses of the continuum design suc...

clinical research usually involves patients with a certain disease or a condition. the generalizability of clinical research findings is based on multiple factors related to the internal and external validity of the research methods. the main methodological issue that influences the generalizability of clinical research findings is the sampling method. in this educational article, we are explai...