This research presents an experimental analysis of a counter flow spray drying process using water and skim milk as feed. The study was performed by examining the droplet size distribution sprays temperature profiles in dryer. influence air inlet temperature, mass rate, feed on temperatures dryer evaluated. evaporation deposition zones were found to be highly dependent size. obtained results sh...

précis this debate article highlights the challenges of health situation in iran and some influencing or relevant factors such as health sector, welfare system and social protection, social exclusion and civil society from the viewpoint of an international partner. some advanced experiences in iranian health system and the manner of system for international cooperation have also been discussed.