Wire electric discharge machine (WEDM) is spark erosion in unconventional machining technique to cut hard and the conductive material with a wire as an electrode. The blanking die material SKD 11 is a high carbon and high chromium tool steel with high hardness and high wearing resistance property. This tool steel has broad application in press tools and dies making industries. In this research ...

The literal performance of the symbols contained in a traditional score is not enough to produce expressive music. Human interpreters use musical knowledge that is not explicitly represented in it. This paper presents a knowledge-based approach to introduce expressiveness to the performance of a score by calculating dynamics and tempo envelopes of the piece, combining implicit musical knowledge...

The design of upper limb prostheses must be done on realistic bases taking into account the present technologies and getting of the best efficiency in their use without ignoring the economical factors. In authors’ opinion, the basic idea in the prosthetic field is that the quality must be measured not only through the technical performances of the prosthetic system but mainly through the perfor...

This paper proposes a framework for ontology-based design support systems, called DRIFT (Design Rationale Integration Framework of Three layers), which records, structures and retrieves reflective operations and their relationships in design process. Although an ontology can provide concepts of static knowledge, such as knowledge about first principles of physical phenomena or prescription of s...

Telecommunications systems were among the first to use modeling and analysis to improve designs. Since those early days, researchers have made many advances in the technology and tools. Performance models have been successfully applied to a variety of other computer systems design problems. When we consider the current state of the art and state of the practice, are we satisfied with the result...

We discuss two experimental designs and show how to use them to evaluate difficult empirical combinatorial problems. We restrict our analysis here to the knapsack problem but comment more generally on the use of computational testing to analyze the performances of algorithms.

Recently, microwave performance has been reported for PNP InAlAs/InGaAs HBTs [1]. Although some simulations have been performed for the optimization of GaAs-based PNP HBTs [2], little has been reported on the optimization of PNP HBTs in the InP material system. In this work, various layer structures for InAlAs/InGaAs PNP HBTs were simulated using a 2dimensional drift-diffusion simulator in orde...