We propose a new method for computing the 2-d Minkowski sum of non-convex polygons. Our method is convolution based. The main idea is to use the reduced convolution and filter the boundary by using the topological properties of the Minkowski sum. The main benefit of this proposed approach is from the fact that, in most cases, the complexity of the complete convolution is much higher than the co...

Music teacher’s reports suggest that the respiratory function and laryngeal control in wind instruments, stimulate muscular tension of the involved anatomical structure. However, the physiology and acoustics of the larynx during trumpet playing has seldom been studied. Therefore, the current paper describes the laryngeal articulation during trumpet performance with biomedical signals and audito...

We consider the problem of computing certain parameterized minimum volume outer ellipsoidal (MVOE) approximation of the Minkowski sum of a finite number of ellipsoids. We clarify connections among several parameterizations available in the literature, obtain novel analysis results regarding the conditions of optimality, and based on the same, propose two new algorithms for computing the paramet...

background acute upper gastrointestinal bleeding (ugib) is a common medical emergency and is known as one of the main causes of mortality and morbidity. this research was conducted to study the causes and risk factors for ugib, in a referral center. methods in this cross sectional study, carried out in a one year period, all patients with acute ugib living in khorramabad city and surrounding ar...

This study investigated whether there were individual differences in within-category sensitivity to the voicing contrast and, if so, whether these differences were related to listeners‟ differential sensitivity to different acoustic cues. To do this, we conducted two speech perception experiments with English-speaking adults: visual analogue scaling (VAS) and anticipatory eye movement (AEM). St...

A characterization of Blaschke addition as a map between origin-symmetric convex bodies is established. This results from a new characterization of Minkowski addition as a map between origin-symmetric zonoids, combined with the use of Lévy-Prokhorov metrics. A full set of examples is provided that show the results are in a sense the best possible.

We derive a Brunn-Minkowski-type inequality regarding the volume of the Minkowski sum of degenerate sets, namely, line sets. Let A 1 : : : A n be one dimensional sets of unit length, and v