Background: The rapid development of telecommunication technology has prompted the creation various messenger applications. competition among social messengers to gain market share is becoming tighter. Objective: This study aims capture user preferences for platforms and inform software companies improve their products based on needs. Methods: research uses quantitative methods, i.e., categoric...

evaporation is one of the main parameters for the optimum operation of reservoirs, design of irrigation systems and scientific management of water resources. accurate estimation of the water evaporation level is crucial in any region especially in arid and semiarid regions. in this study, the feasibility of simulation of pan evaporation in maraghe station using the multiple regression models we...