background: hypertension is a risk factor for many diseases. nutritional methods are considered as major tools in lifestyle modification for lowering blood pressure. the present study was conducted to determine the level of dietary adherence in hypertensive patients. methods: this descriptive-analytical study was performed in 2015, on hypertensive patients who were referred to heart clinic of s...

the narrow operating window between pore pressure and fracture pressure makes drilling difficult in some operations. a feasibility study of managed pressure drilling (mpd) is carried out on iran darquain oil field. the previous wells drilled in this field showed that mud returns were lost during drilling gadvan formation. the present work addresses this problem by means of surface back pressure...

Dexterous behavior exhibits exquisite context sensitivity, implying the efficacy of exploration to detect the task-relevant information. Inspired by the recent finding that fractal scaling of exploratory movements predicts how well the movements sample available perceptual information, we investigate the possibility that dexterity of craftsmen would be characterized by fractal (long-range) temp...

This paper presents the development of a nonlinear model predictive controller (MPC) for controlling variable speed hydropower (VSHP) plants. The MPC coordinates turbine with virtual synchronous generator (VSG) control power electronics converter to optimize plant’s performance. main objective is deliver fast response frequency deviations by utilizing kinetic energy and generator. made possible...

The paper considers the possibility of reusing previously used railway rails. analysis is conducted using standards and operating conditions rails one Central Asian states, Kazakhstan, as an example. operation these causes significant stresses, while surface layers are strengthened a result cold hammering. These phenomena significantly change physical mechanical characteristics As result, they ...