The oil cooling gallery is arranged at the top of the piston, which can effectively reduce the heat load of the piston. In this paper, finite element analysis and fatigue analysis by FE-safe are used to calculate the effects of the different positions of the oil cooling gallery to the temperature, stress field and the fatigue strength of the bowl rim, top land, first ring groove, second land an...

We present a method to estimate recognition performance for large galleries of individuals using data from a significantly smaller gallery. This is achieved by mathematically modelling a cumulative match characteristic (CMC) curve. The similarity scores of the smaller gallery are used to estimate the parameters of the model. After the parameters are estimated, the rank 1 point of the modelled C...

Whispering gallery modes are specific resonances (or modes) of a wave field that are confined inside a given resonator (cavity) with smooth edges due to continuous total internal reflection. The most interesting from a practical viewpoint are electromagnetic whispering gallery modes, since they posses many unique properties, such as ultra-high Q-factors, low mode volumes, small sizes of resonat...

In many face recognition tasks the pose of the probe and gallery images are different. In other cases multiple gallery or probe images may be available, each captured from a different pose. We propose a face recognition algorithm which can use any number of gallery images per subject captured at arbitrary poses, and any number of probe images, again captured at arbitrary poses. The algorithm op...

An open edge of a simple polygon is the set of points in the relative interior of an edge. We revisit several art gallery problems, previously considered for closed edge guards, using open edge guards. A guard edge of a polygon is an edge that sees every point inside the polygon. We show that every simple non-starshaped polygon admits at most one open guard edge, and give a simple new proof tha...

Whispering gallery mode resonances in liquid droplets and microspheres have attracted considerable attention due to their potential uses in a range of sensing and technological applications. We describe a whispering gallery mode sensor in which standard optical fibre is used as the whispering gallery mode resonator. The sensor is characterised in terms of the response of the whispering gallery ...

Abstract In the present work measurements of chloride concentrations were used to assess variability infiltration conditions and contributions surface water local groundwater discharge wells at Krajkowo riverbank filtration site (western Poland). Tests performed on samples from 26 located in a well gallery close River Warta. Due higher river comparison with groundwater, significant differences ...