In this paper by using numerical evaluation the effect of balancing drupes of water hammer on tunnels lining is considered. In case of not arrangment of these reservoirs, the tunnel lining will be damaged of cyclic powers of water hammer. In this research, function of balancing reservoir of water hammer on cover of tunnels to the barriers’ turbine is simulated by numerical methods and Plaxis 3D...

abstract water is a main factor in production of crops. optimizing the usage of water is essential especially in iran which is a dry and semi-dry country. investigation on the effect of different irrigation treatments on chilo suppressalis walker (lep.: crambidae), as the most destructive rice pest, can be an efficient strategy in optimizing usage of water in integrated crop management (icm). i...

The objective of this paper is to describe a developed model and its corresponding application, known as System to Evaluate the Water Consumption at Home (SEWAT). The aim is to create a new model to evaluate the efficiency of water consumption. Thanks to the input of the water bills by users, the model allows them to check if water consumption is efficient, in order to give them an opportunity ...

As the most populous country in world, China has a great shortage pressure of water resources. With acceleration urbanization, China’s usage different sectors will change significantly next few years. In order to investigate main reasons behind China, Logarithmic Mean Divisia Index (LMDI) model was adopted this paper from 2000 2020 with provincial data. Three effects, including that technology,...

Aim: The storage of clean water assets around the world has produced a requirement for their ideal use. Innovative irrigation is advance method which can overcome drawbacks traditional drip irrigation. Materials: In this proposed system two soils, sandy soil with average moisture content 60% and clay 76% are taken; A total 20 samples taken from 2 groups. sample size was estimated to be 5 in eac...

water shortage in the agricultural sector is currently a major challenge in crop production. the more efficient water usage is that which increases yield without increasing water use. thus, a determination of the water-yield relationship is essential. a field study was conducted to examine water-yield relations in three genotypes of soybeans, including optimum irrigation depth, a comparison of ...