THE ATMOSPHERE CONSTITUENTS FOR GAS CARBONITRIDING ANCHORAGE WEDGE

Trace constituents of Europa’s atmosphere

Fiber- Reinforced Composite for Orthodontic Anchorage Technique

Introduction: In orthodontic treatment, adequate anchorage is necessary to move the intended teeth. In some cases, just anterior teeth are malaligned, while posterior occlusion is acceptable. Therefore, the posterior teeth could be integrated by fiber-reinforced composite (FRC) to provide a rigid anchorage. This method proved advantageous since brackets are bonded just to anter...

the search for the self in becketts theatre: waiting for godot and endgame

this thesis is based upon the works of samuel beckett. one of the greatest writers of contemporary literature. here, i have tried to focus on one of the main themes in becketts works: the search for the real "me" or the real self, which is not only a problem to be solved for beckett man but also for each of us. i have tried to show becketts techniques in approaching this unattainable goal, base...

Carbonitriding – fundamentals, modeling and process optimization

The carbonitriding process, which involves the diffusion of both carbon and nitrogen into the base steel, can be carried out in a salt bath or in a furnace gas atmosphere. It is a modified carburizing process but is mostly done at a lower temperature and for shorter time than carburizing. This process is one of the widely used heat treatments for surface hardening. Nonetheless, there are challe...

Modelling trace gas chemistry in the Martian atmosphere

Dust-bourne heterogeneous reactions have been modelled using the UK Mars Global Circulation Model (MGCM) coupled with physics and chemistry schemes used in the Laboratoire de Météorologie Dynamique (LMD) MGCM. The seasonal ozone column abundance has been calculated using a number of different dust scenarios. Reactions involving volcanically interesting species such as water vapour, SO2 and HCl ...