Based on experimental studies using the "integral velocity index of the vertical displacement of the territory" and criterion of generalized seismicity, a close functional relationship was found ...between two parameters of different physical nature: seismic activity and altitude displacements of the Earth's surface in Europe. The mathematical correlation between the generalized parameters of the velocity altitude displacements on the territory and seismic activity is established according to seismic and GNSS stations for the period from 2000-2011 for the areas in Europe with close correlation between seismicity and velocity of vertical movements of the Earth's surface. Keywords: seismic activity GNSS-stations velocity vertical movements
Based on previously performed calculations of the load-bearing capacity for the ultimate and serviceability limit states, an experimental design of a rafter arch was developed. New results from ...experimental studies on the stress-strain state of its components were obtained, specifically for the semi-arches, ties, and struts under the influence of symmetrical and asymmetrical loads. According to the proposed methodology, a full-scale sample of a steel arch structure was studied in accordance with the loading schemes that are possible in practice. As a result, the actual stresses in all elements were determined, considering both the inclusion and exclusion of preliminary stress. The main theoretical prerequisites for the calculation of the rafter arch, proposed by the authors under the methodology, have been validated. The research objectives were formulated for the subsequent experimental and theoretical investigations of continuous perforated elements. The focus is on establishing effective structural solutions for intermediate supports based on various factors, including size, nature (static or dynamic), type (concentrated, evenly distributed, combined), load action scheme, material strength (standard or high-strength steels), span size, and geometric parameters of the section. Distinct variations are considered concerning the presence or absence of stiffeners along the axis of the intermediate support and the inclusion of welded or non-welded perforation holes on the left and right of the support. It was determined that the stress distribution in the calculation points of characteristic cross-sections with holes of the bearing part of the non-separated perforated beam near the intermediate support significantly differs from the stress distribution in the span part, since the sign of the bending moment curve changes from positive in the span to negative at the support.
Purpose: assessment of the influence of the level of psychoemotional stress and the effectiveness of mental self-regulation on the functional state of the neuromuscular system and the effectiveness ...of the sensorimotor activity of highly skilled athletes specializing in complex co-ordination sports (on the example of diving). Material & Methods: study involved 14 high-class athletes (master of sport, international master of sport, honored master of sports) at the age of 15–30 years. To determine the psychophysiological properties of the nervous system of athletes, the diagnostic complex "Diagnost-1" are used. Electroneuromyography was performed on the neurodiagnostic complex "Nicolet Viking Select". For a differentiated assessment of the level of stress, the emotional state of the respondents and also for assessing the effectiveness of mental self-regulation, a technique to select colors was used. Result: interrelation between the effectiveness of mental self-regulation and adaptability, the intensity of existing stress, emotional stability and vegetative balance with electroneuromyographic characteristics, strength and functional mobility of nervous processes, the accuracy of reaction to a moving object and the ratio of the reactions of lead and lag, the efficiency of sensorimotor activity are identified. Conclusion: revealed interrelation of the effectiveness of mental self-regulation and adaptability, intensity of existing stress, emotional stability and vegetative balance with typological properties of the higher parts of the central nervous system and electroneuromyographic characteristics of athletes can have prognostic value and be used to optimize the sports development of promising young people.
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