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Muslimska högtider

Artikeln handlar om muslimska högtider, deras ursprung och betydelse i vardagslivet så som i religiösa livet.

A Finite Element Analysis of a Crack Penetrating or Deflecting Into an Interface in a Thin Laminate

The crack tip driving force of a crack growing from a pre-crack that is perpendicular to and terminating at an interface between two materials is investigated using a linear fracture mechanics theory. The analysis is performed both for a crack penetrating the interface, growing straight ahead, and for a crack deflecting into the interface. The results from finite element calculations are compared

Duality in Robust Control: Controller vs. Uncertainty

To find a controller that provides the maximal stability margin to an LTI system under rank-one perturbations is a quasiconvex problem. In the paper, the dual quasiconvex problem is obtained, using the convex duality arguments in the Hardy space H∞. It is shown that the dual problem can be viewed as minimization of a "length" of uncertainties that destabilize the system. Several examples establish

High-resolution calculations of merging neutron stars - I. Model description and hydrodynamic evolution

We present the results of 3D high-resolution calculations of the last inspiral stages and the final coalescence of neutron star binary systems. The equations of hydrodynamics are solved using the smoothed particle hydrodynamics method with up to 106 particles. Using Newtonian gravity, but adding the forces emerging from the emission of gravitational waves, we focus on the impact of microphysics on

The methodology of predictive design analysis

From an engineering point of view, uncertainty is present in all areas of design (products, processes and organizations). Computer-based design analysis, here confined to quantitative computer-based structural design analysis within mechanical engineering, serves as an important source of information in decisions taken during the design activity; importantly, it aims at giving confidence in critic

Teaching digital ASIC design to students with heterogeneoms previous knowledge

This paper describes a MSc level digital ASIC project course. The majority of the course participants are international students, having a wide spread in previous knowledge in the field of digital HW-design. A course outline adapting to this fact has been developed, changing from one joint VLSI project towards smaller individual projects. The diversity in previous knowledge is evened out by adding