Engine downsizing technology benefits the environment in terms of emission gases and also reduces usage fuel automobiles. Reducing number pistons or their dimensions is among most suitable techniques for engine downsizing. However, reducing size will cause another issue to with withstanding applied forces generated due combustion during combustion. Therefore, this research work, automobile pist...

OBJECTIVES To examine the relationship between perceived and biological stress and near misses among Emergency Medicine residents. DESIGN Self-rated stress and stress biomarkers were assessed in residents in Emergency Medicine before and after a day shift. The supervising physicians and residents reported numbers of near misses. SETTING The study took place in the Emergency Department of a ...

Zur Beurteilung der Qualität von Testsuiten ist der Abdeckungsgrad ein wichtiges Kriterium. Beim modellbasierten Blackbox-Test wird dabei nicht die Abdeckung im Ziel-Code, sondern in der Spezifikation gemessen. Wir beschreiben anhand eines konkreten Beispiels die von aktuellen Testfallgenerierungswerkzeugen erreichte Abdeckung und argumentieren, dass eine zusätzliche Metastrategie für die Kombi...

Within the last few years, CPU speed has greatly overtaken memory speed. For this reason, implementation of symbolic algorithms— with their extensive use of pointers and hashing—must be reexamined. In this paper, we introduce the concept of cache miss complexity as an analytical tool for evaluating algorithms depending on pointer chasing. Such algorithms are typical of symbolic computation foun...

With each of a large class of positive measures µ on the real line it is possible to associate a sequence {p n (x)} of orthogonal polynomials with the property that ∞ −∞ p m (x)p n (x)dµ(x) = 0, m = n, 1, m = n. (1) Such a sequence satisfies a three term recurrence relation xp n (x) = a n P n+1 (x) + b n P n (x) + a n−1 P n−1 (x) (2) Conversely, for suitable starting values and coefficient sequ...