Technische Universität Darmstadt

About: Technische Universität Darmstadt is a education organization based out in Darmstadt, Germany. It is known for research contribution in the topics: Computer science & Context (language use). The organization has 17316 authors who have published 40619 publications receiving 937916 citations. The organization is also known as: Darmstadt University of Technology & University of Darmstadt.

Interpretive structural modeling of supply chain risks

Abstract: Purpose – The aim of this paper is the structural analysis of potential supply chain risks. It will demonstrate how interpretive structural modeling (ISM) supports risk managers in identifying and understanding interdependencies among supply chain risks on different levels (e.g. 3PL, first‐tier supplier, focal company, etc.). Interdependencies among risks will be derived and structured into a hierarchy in order to derive subsystems of interdependent elements with corresponding driving power and dependency.Design/methodology/approach – ISM was used to identify inter‐relationships among supply chain risks and to classify the risks according to their driving and dependence power. The theoretical findings of the modeling and the applicability for practical use has been tested in two case studies with two German industry and trade companies.Findings – ISM was proven as a useful methodology to structure supply chain risks in an easy and distributed approach that can also be carried out in a step‐by‐step process...

Unified tensile fracture criterion.

Abstract: We find that the classical failure criteria, i.e., maximum normal stress criterion, Tresca criterion, Mohr-Coulomb criterion, and von Mises criterion, cannot satisfactorily explain the tensile fracture behavior of the bulk metallic glass (BMG) materials. For a better description, we propose an ellipse criterion as a new failure criterion to unify the four classical criteria above and apply it to exemplarily describe the tensile fracture behavior of BMGs as well as a variety of other materials. It is suggested that each of the classical failure criteria can be unified by the present ellipse criterion depending on the difference of the ratio alpha = tau(0)/sigma(0).

Evidence for a Soft Nuclear Equation-of-State from Kaon Production in Heavy-Ion Collisions

Abstract: The production of pions and kaons has been measured in ${}^{197}\mathrm{Au}{+}^{197}\mathrm{Au}$ collisions at beam energies from 0.6 to $1.5A\mathrm{GeV}$ with the kaon spectrometer at SIS/GSI. The ${K}^{+}$ meson multiplicity per nucleon is enhanced in $\mathrm{Au}+\mathrm{Au}$ collisions by factors up to 6 relative to $\mathrm{C}+\mathrm{C}$ reactions, whereas the corresponding pion ratio is reduced. The ratio of the ${K}^{+}$ meson excitation functions for $\mathrm{Au}+\mathrm{Au}$ and $\mathrm{C}+\mathrm{C}$ collisions increases with decreasing beam energy. This behavior is expected for a soft nuclear equation-of-state.