Recently developed microform m easurem ent techniques have reduced the measurement uncertainties in the geom etry of Rockwell diamond indenters. It is now possible to establish standard-grade Rockwell diamond indenters characterized by high geometric uniform ity, high hardness performance uniformity, interchangeability and reproducibility. By using the standard indenters under differen t national standard machines and a standardized testin g cycle, a world-wide uni® ed Rockwell hardness scale could be established with m etrological traceability , stability and reproducibility. Geometric measurements and hardness tests in ® ve laboratories have shown that tightly controlled indenter geom etry can signi® cantly im prove the consistency of Rockwell C hardness (HRC) measurements. These results support the feasibility of establishing a world-wide uni® ed HRC scale with an expanded uncertainty of approxim ately 6 0,2 HRC and without signi® cant bias with respect to an ideal scale.
This paper explores several statistical pattern recognition techniques to classify utterances according to their emotional content. We have recorded a corpus containing emotional speech with over a 1000 utterances from different speakers. We present a new method of extracting prosodic features from speech, based on a smoothing spline approximation of the pitch contour. To make maximal use of the limited amount of training data available, we introduce a novel pattern recognition technique: majority voting of subspace specialists. Using this technique, we obtain classification performance that is close to human performance on the task.
Bei der Werkstoffprüfung muss bei jedem Messwert die jeweilige Messunsicherheit angegeben werden. Aus der 1995 erschienenen GUM [1] wurde 2000 der Uncert Report für verschiedenen Messverfahren entwickelt und als Code of Practice (COP) [2–4]. veröffentlicht. Diese sollen in Zusammenhang mit den in den Normen empfohlenen Verfahren und der praktischen Umsetzung dargestellt werden.
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