Introduction. Developing ontologies is not an easy task and often the resulting on-tologies are not consistent or complete. Such ontologies, although often useful, lead to problems when used in semantically-enabled applications. Wrong conclusions may be derived or valid conclusions may be missed. RepOSE (Repair of Ontological Structure Environment) tackles the problem of debugging the is-a stru...

We propose a mechanism to explain what occurs when a mixture of grains of different sizes and different shapes (i.e., different repose angles) is poured into a quasi-two-dimensional cell. Specifically, we develop a model that displays spontaneous stratification of the large and small grains in alternating layers. We find that the key requirement for stratification is a difference in the repose ...

OBJECTIVES/HYPOTHESIS Determine the effect of facial reanimation surgery on observer-graded attractiveness and negative facial perception of patients with facial paralysis. STUDY DESIGN Randomized controlled experiment. METHODS Ninety observers viewed images of paralyzed faces, smiling and in repose, before and after reanimation surgery, as well as normal comparison faces. Observers rated t...

The round robin test (the simultaneous analysis of the same problem) is a method to investigate variance and sensitivity results provided by different analysts for given problem reliability particular software used each group participating in test. A has been conducted traditional numerical (e.g., finite difference method), but not yet discrete element (DEM). This paper presents first ever on D...