Developing a Model for the Integrated Management of Water and Soil Resources in Hableh-Rud River Basin Using System Dynamics Approach

and call a set A provident if it is transitive and closed under all p-rud-rec functions with p a member of A. * If ζ is the least ordinal not in a provident set A, then ζ is indecomposable, that is, that the sum of two ordinals less than ζ is less than ζ. Conversely, if ζ is indecomposable, η > ζ and p ∈ Jζ , then the Jensen set Jη is is closed under all p-rud rec functions; in particular Jζ is...

irrigated agriculture is an important contributor to the expansion of national food supplies and is expected to play a major role in food security of developing countries. such countries face water crisis for securing the food staples. well designed water resource policies potentially can improve the water allocation and use efficiency as well as the food security objectives. this paper present...

Background Self-medication refers to the use of medicines to treat self-diagnosed diseases without consulting any healthcare professionals. Irrational drug use and self-medication have serious negative consequences both on health and economy. Therefore, the aim of this study is to assess the habits related to rational use of drugs (RUD) and to estimate the prevalence of self-medication practice...

Water quality and metal contents of sediments were measured in Zayandeh-Rood River. Zayandeh-Rood is one of the most important rivers of Iran. The river water is used for drinking, industrial and agricultural purposes. The anthropogenic impact on the river over the last three decade has proven to be extremely negative due to the quick development of industry. Physico-chemical parameters of wate...

we investigated the environmental impact of trout farm discharge on zayandeh-rud river. three farms with different production capacities; 250, 25 and 70 tones were assigned to this study. five sampling sites were designated to each farm. benthic macroinvertebrates were collected in autumn, winter, and spring using the quantitative techniques. a total of 11 classes, 16 orders and 53 families&apo...

Rotary ultrasonic drilling (RUD) has become an effective approach for machining advanced composites which are widely using in the field of aeronautics. The cutting kinematics and corresponding material removal mechanisms distinct different areas during RUD. However, these fundamentals have not been fully considered existing studies. In this research, two forms interaction induced by vibration w...