Probing for Flaws

Standard Flaws for Eddy Current Probe

Calibration procedures for eddy current inspections often involve the use of artifact standards containing manufactured flaws. The manufactured flaw is assumed to be a good approximation of the type of flaw being sought during the inspection. These manufactured flaws are most often produced by electrical dis charge machining (EDM) , milling, or the controlled growth of fatigue cracks. With simp...

3 Serious Flaws in

Understanding the effect of a heuristic on the time complexity of the well-known A∗ search algorithm has been a subject of a large research body in AI. Among those researches is Korf et al.’s analysis (Korf & Reid, 1998; Korf et al., 2001; Korf, 2000a; Korf, 2000b), which concluded that the effect of a heuristic is to reduce the effective depth rather than effective branching factor. Since this...

An ontology description for SIP security flaws

Voice over IP (VoIP) services based on the Session Initiation Protocol (SIP) gain ground as compared to other protocols like MGCP or H.323. However, the open SIP architecture constitutes the provided services vulnerable to various attacks, similar to those currently existing in Internet. The lack of a formal way to describe VoIP vulnerabilities hinders the development of tools that could be uti...

Laser System for the Detection of Flaws

Design flaws in EuroSCORE II.

We recently read with great interest and anticipation the development of the EuroSCORE II. However, we have methodological concerns relating to how EuroSCORE II was developed and evaluated [1] and subsequent comments made in an editorial by the authors responding to recent criticisms [2]. We focus on the strategy and study design used to derive and evaluate the model. The authors randomly split...