The Swiss Public Opinion Towards the Tasks of the Swiss Armed Forces and the Constitutional Role

After the Cold War, all European armed forces have transformed to be prepared for the new geopolitical environment and have taken new tasks. Since then, the European armed forces are more active in international conflict management. Whereas most of the European states have suspended the conscription, the Swiss Armed Forces still hold on conscription. However, the Swiss Armed Forces have changed also. The reform ＂Armee 95＂ in 1995 and the reform ＂Armee XXI＂ in 2004 have transformed the Swiss Armed Forces and extended their range of tasks. Which of these tasks are legitimated by the Swiss population？ To answer this question, the Swiss population had been interviewed about the tasks of the Swiss Armed Forces as part of the study ＂Sicherheit 2016＂. The tasks which the Swiss population mentioned are displayed in this paper with regard to the transformation process classified and discussed. The evaluation shows that 93% of the interviewees have named one of Switzerland＇s constitutional duties （defense, support of the civilian authorities, and promotion of peace within an international context） as the most important task of the Swiss Armed Forces. Mainly the national defense order and the subsidiary support of the civilian authorities are approved by the Swiss population.

NANOSCALE CUTTING OF MONOCRYSTALLINE SILICON USING MOLECULAR DYNAMICS SIMULATION

It has been found that the brittle material, monocrystalline silicon, can be machined in ductile mode in nanoscale cutting when the tool cutting edge radius is reduced to nanoscale and the undeformed chip thickness is smaller than the tool edge radius. In order to better understand the mechanism of ductile mode cutting of silicon, the molecular dynamics （MD） method is employed to simulate the nanoscale cutting of monocrystalline silicon. The simulated variation of the cutting forces with the tool cutting edge radius is compared with the cutting force results from experimental cutting tests and they show a good agreement. The results also indicate that there is silicon phase transformation from monocrystalline to amorphous in the chip formation zone that can be used to explain the cause of ductile mode cutting. Moreover, from the simulated stress results, the two necessary conditions of ductile mode cutting, the tool cutting edge radius are reduced to nanoscale and the undeformed chip thickness should be smaller than the tool cutting edge radius, have been explained.

Motion of a spherical particle in a fluid forced vortex by DQM and DTM

In this study, coupled equations of the motion of a particle in a fluid forced vortex were investigated using the differential transformation method （DTM） with the Pad6 approximation and the differential quadrature method （DO_M）. The significant contribution of the work is the introduction of two new, fast and efficient solutions for a spherical particle in a forced vortex that are improvements over the previous numerical results in the literature. These methods represent approximations with a high degree of accuracy and minimal computational effort for studying the particle motion in a fluid forced vortex. In addition, the velocity profiles （angular and radial） and the position trajectory of a particle in a fluid forced vortex are described in the current study.

Ferrite Evolution During Isothermal Process in a High Deformability Pipeline Steel

In order to ensure the safety of long-distance oil and natural gas transmission pipeline installed in seismic and/or permafrost region, high strength pipeline steel with excellent deformability has been developed. The ferrite and bainite dual phase pipeline steel is a very important kind of high deformability pipeline steel. Polygonal ferrite is a key microstructure in ferrite and bainite dual phase deformability pipeline steel. Ferrite evolution during isothermal process at 700 ℃ after 50% deformation at 800 ℃ was conducted by using a Gleeble-3800 thermal simulator, and microstructure was characterized by using an optical microscope, a scanning electron microscope and a transmission electron microscope. There are two types of ferrite, ferrite with high density dislocation and ferrite with a little dis location. There is about 7% （volume percent） deformation induced ferrite （DIF） for compression of 50% at 800 ℃ and strain rate of 1 s-1. During the isothermal process at 700 ℃, with the holding time increasing, ferrite volume percent, ferrite grain number and average ferrite grain size increase. As the holding time is prolonged, dislocation re-covery occurs in DIF. There are secondary phases in ferrite when the holding time is too long, and secondary phases and dislocation formation in dislocation pinning.