In disaster situations, where ad hoc mobile networks are normally used, the location and quantity of existing obstacles is random. Most existing mobility models have not been developed with consideration of the obstacles that exist in a disaster environment. This paper proposes two methods of mobility that realistically represent movement in an environment with obstacles. Unmarked Point Model (...

This paper examines the obstacles of marriage and analyzes the tendency towards marriage in Hamedan Province. This paper uses survey data required a sample of 400 young individuals by using a multistage cluster sampling and stratified random sampling. The main obstacles of marriage in this study in terms of priority, were cultural obstacles with an average rank (4.94), social obstacles with an ...

a new retrofit targeting procedure, based on pinch technology has been developed. the new procedure considers existing structure of a given network and finds the most compatible configuration with the network. to achieve this aim, the procedure uses a linear programming technique that maximize the compatibility. good compatibility between old and new networks helps to make the best use of capit...