Special Operations Forces
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. As Forças de Operações Especiais dos Estados Unidos e a intervenção no Afeganistão: um novo modo de guerra americano? / United States Special Operations Forces and the intervention in Afghanistan: a new American way of war?
The initial reaction of the George W. Bush administration to the violent acts of september 11, 2001 was to attack the Taliban government in Afghanistan, aiming to bring down the Mullah Omar regime and to set up bases that would serve to the hunting of al- Qaida, organization which had that country as its sanctuary to plan its actions. The capital Cabul, as w
Publicado em: 2009
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2. Influence of the tool edge geometry on specific cutting energy at high-speed cutting
This paper presents specific cutting energy measurements as a function of the cutting speed and tool cutting edge geometry. The experimental work was carried out on a vertical CNC machining center with 7,500 rpm spindle rotation and 7.5 kW power. Hardened steels ASTM H13 (50 HRC) were machined at conventional cutting speed and high-speed cutting (HSC). TiN c
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-09
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3. Effects of the geometrie, of the axial force and of the rotation in the friction welding repair / Efeitos da geometria, da força axial e da rotação no reparo por atrito
Interventions made in the oil industry for repairs in structures and mechanical components, represents nowadays high financial costs. It is even worse since the operations are made in explosion risk areas. The electric arc welding is one of the most common techniques in this kind of repair. However, this technique has many inconveniences, some of them are: h
Publicado em: 2007