A theoretical method is proposed to estimate post-fracturing fracture size and transmissivity, and as a test of the methodology, data collected from two wells were used for verification. This method can be employed before hydrofracturing in order to obtain estimates of the potential hydraulic benefits of hydraulic fracturing. Five different pumping test analysis methods were used to evaluate th...

Stochastic modeling of soil water fluxes in the absence of measured hydraulic parameters requires a knowledge of the expected istribution of the hydraulic parameters in different soil types. Predictive relationships describing the hydraulic parameter distributions must be developed based on the common descriptors of the physical properties of soils (e.g., texture, structure, particle size distr...

the present work with consideratlon to the autoradiographic pictures, suggests that cholinergic receptors are located at the gate of a channel originating from synaptic cleft coming to lie within the muscle fibre. ache molecules stand at the gate of this channel,controlling the entrance of different cholinergic agents. it was report- ••• ed previously that dtc molecules s t.abd ;:.2e the ache r...

39 S oil hydraulic parameters are essential input to most hydrologic and climatic models (Mohanty et al., 2002; Mohanty and Zhu, 2007). Th ey are used to defi ne the hydraulic characteristics of the soil vital in modeling soil moisture and fl ux in the unsaturated zone near the land–atmosphere boundary. At the scale of model applications, it is very important to defi ne the appropriate paramete...

This paper denouements the study of operating parameters of a hydraulic transmission system with and without the application of hydraulic accumulator. In this respect, the hydraulic system, designed in the open circuit mode, consists of the fixed displacement hydraulic pump which gives pressured fluid to the hydro-motor and charges the accumulator as well. The load on the motor is controlled hy...

To improve the designs of hydraulic automatic water level regulators with flexible working bodies for channels, object research was developing and studying an innovative design autoregulator in form a partition structure trapezoidal channels. The study℉s main purpose to create channels that do not allow channel narrowing provides control, draining excess water, washing deposits front partition,...

The structure of hydraulic structures power and water management systems includes gates for various purposes, which allow you to regulate distribute the flow in channels waterworks. Existing gate designs do not provide possibility generating electricity from energy stream passing through them. In order convert into electrical a new patented design is proposed allows using micro-hydroelectric pl...

This study investigates experimentally and numerically the effects of sills with different geometric specifications at various positions on hydraulic characteristics flow through sluice gates. The simulation results showed that RNG turbulence model’s statistical indicators yield high accuracy compared to k-?, k-?, LES models. discharge coefficient (Cd) has an inverse relationship gate opening. ...