background: the monte carlo method is the most accurate method for simulation of radiation therapy equipment. the linear accelerators are currently the most widely used machines in radiation therapy centers. methods: in this work, a monte carlo modelling of the siemens oncor linear accelerator in 6 mv and 18 mv beams was performed. the results of simulation were validated by measurements in wat...

Stabilised dense emulsions display a rich phenomenology connecting microstructure and rheology. In this work, we study how an emulsion with finite yield stress can be built via large-scale stirring. By gradually increasing the volume fraction of dispersed minority phase, under constant action stirring force, are able to achieve close 80%. Despite fact that our system is highly concentrated not ...

ewline"> Dispersion of heavy gases is considered to be more hazardous than the passive ones because it takes place more slowly. ...