Surface water quality models can be useful tools to simulate and predict the levels, distributions, and risks of chemical pollutants in a given water body. The modeling results from these models under different pollution scenarios are very important components of environmental impact assessment and can provide a basis and technique support for environmental management agencies to make right dec...

introduction: we can facilitate hospital management and prevent organizational crises by applying quality management principles. gharazi hospital in isfahan set up a quality management system in 1380 and in 1381 received iso 9001 , 2000 certificates. this study compared the quality management principles and the quality management system established in this hospital. methods: it is a cross-secti...

Subsurface (tile) drainage, while necessary for viable agricultural crop production in the humid, poorly drained regions of world, has been linked to offsite nutrient transport, culminating harmful algal blooms and hypoxia downstream waterbodies. Drainage water management (DWM), also known as controlled promoted a method reduce nitrogen (N) phosphorus (P) loss from field scale tile drainage; ho...

Agriculture, including crop growing, livestock breeding, and fish farming, is essential for human survival [...]

Human activities in the recent years have considerably increased the rate of water pollution in many regions of the world. In this case study, the main sources of wastewater discharging into the Gargar River were identified. Using river and point source flow rates and water quality parameters measured along the river, the river water quality was simulated using a commonly used, one-dimensional ...