Jens-Uwe Stolzenburg *, Michael C. Truss , Robert Rabenalt , Minh Do , Thilo Schwalenberg , Paraskevi F. Katsakiori , Alan McNeill , Evangelos Liatsikos c Department of Urology, University of Leipzig, Leipzig, Germany Department of Urology, Klinikum Dortmund, Dortmund, Germany Department of Urology, University of Patras, Patras, Greece Department of Urology, Western General Hospital, Edinburgh,...

As a generalization of skew braces, the notion trusses was introduced by T. Brzeziński. It shown that every Rota-Baxter group has structure braces V. G. Bardakov and Gubarev. To investigate an analogue groups which trusses, we define systems. We study relationship between systems groups. Furthermore, prove system can be decomposed as direct sum two semigroups. A factorization theorem is proved,...

The paper deals with the perception and image of town Cheb in context historical heritage. Since 2017, has been running a tour historic trusses. aim research was to determine influence this activity on town, or whether roofs already form part at least for some Czech residents citizens. So far, city not systematically investigated. Two surveys have carried out, one among citizens Republic. It fo...

We use support theory, in particular the fretsaw extensions of Shklarski and Toledo [ST06a], to design preconditioners for the sti ness matrices of 2-dimensional truss structures that are sti y connected. Provided that all the lengths of the trusses are within constant factors of each other, that the angles at the corners of the triangles are bounded away from 0 and , and that the elastic modul...

Abstract The advent of additive manufacturing technologies significantly encouraged the development and usage lattice structures. This paper aims to experimentally investigate influence dimension, building position, orientation on mechanical properties Ti6Al4V trusses, manufactured by electron beam melting process, be used in cells. Specimens were considering following parameters: truss diamete...

The present work discusses the optimal placement of sensors in truss structures in order to obtain best possible information regarding the distortions of the structure. The estimation goal is to reconstruct the deformed shape of the structure, at the controlled degrees of freedom, from the sensor readings. A basic assumption is that the structure is subjected to a parametric disturbance eld. We...