9 research outputs found
Social Media, Gender and the Mediatisation of War: Exploring the German Armed Forcesâ Visual Representation of the Afghanistan Operation on Facebook
Studies on the mediatisation of war point to attempts of governments to regulate the visual perspective of their involvements in armed conflict â the most notable example being the practice of âembedded reportingâ in Iraq and Afghanistan. This paper focuses on a different strategy of visual meaning-making, namely, the publication of images on social media by armed forces themselves. Specifically, we argue that the mediatisation of war literature could profit from an increased engagement with feminist research, both within Critical Security/Critical Military Studies and within Science and Technology Studies that highlight the close connection between masculinity, technology and control. The article examines the German military mission in Afghanistan as represented on the German armed forcesâ official Facebook page. Germany constitutes an interesting, and largely neglected, case for the growing literature on the mediatisation of war: its strong antimilitarist political culture makes the representation of war particularly delicate. The paper examines specific representational patterns of Germanyâs involvement in Afghanistan and discusses the implications which arise from what is placed inside the frame of visibility and what remains out of its view
Etude expérimentale de la production de deutérons négatifs par double échange de charges dans le xénon
It is thought that additional heating of fusion plasma will result from D0 energetic beam injection in large plasma devices. Due to the fact that the conversion rate D+ to D0 rapidly decreases at high Ă©nergies, it seems that an interesting way to get these high energy neutrals should be : conversion of D+ to D-, acceleration of D- and further neutralization of D- to have D 0 at the desired energy. The efficiency of D+ to D- and D +2 to D- conversions at low Ă©nergies have been studied on a Xe gas target : it appears that D-/D+ conversion efficiency shows a smooth variation peaking slightly at 5 % for a D + energy of 5 keV. D-/D+2 increases up to 4 % at 12 keV and then decreases. It is shown that the agreement between sample calculation results and experimental values is quite fair for D -/D+.Dans la perspective du chauffage des plasmas de fusion, on envisage d'utiliser des faisceaux de deutĂ©rons D0 de grande Ă©nergie. Afin d'obtenir ces faisceaux, il convient de procĂ©der Ă la conversion d'ions D+ en ions D-, ceux-ci devant ĂȘtre accĂ©lĂ©rĂ©s ultĂ©rieurement aux Ă©nergies intĂ©ressantes pour le chauffage. Les rĂ©sultats prĂ©sentĂ©s concernent donc l'Ă©valuation du rendement de conversion D+ â D- et D+2 â D- en en fonction de l'Ă©nergie. La conversion D+/D- passe par un maximum Ă 6 keV (5 Ă 6 %), en accord raisonnable avec les estimations thĂ©oriques. La conversion D+2 /D- atteint une valeur de 2 Ă 3 % vers 12 keV. Pour ce dernier processus il n'existe pas, en l'Ă©tat actuel, de modĂšle thĂ©orique. Les expĂ©riences ont Ă©tĂ© conduites dans le xĂ©non, gaz cible du double Ă©change de charge