Structural behaviour and continuous strength method design of high strength steel non-slender welded I-section beam-columns

This paper presents the development of efficient design equations for high strength steel (HSS) welded I-section beam–columns under the framework of the Continuous Strength Method (CSM). The present work includes a collection of available experimental data on HSS S690 and S960 welded I-section beam–columns and a comprehensive numerical modelling programme considering a wider spectrum of parameters that influence the structural behaviour of the HSS welded I-section beam–columns. The developed FE models were first validated against test results collected from the literature, after which parametric studies were performed to generate further results to assess the accuracy of the codified design methods as used in Europe and the US, as well as to underpin new design proposals for HSS non-slender welded I-section beam–columns. It has been shown that the proposed CSM-based design approach is able to provide reliable design predictions with improved accuracy and reduced scatter over the existing design methods, and its reliability has been confirmed by means of statistical analyses.</p

Machine learning the governing principle of strong coupling constant across the global energy scale

In this letter, we embark on an exploration of the profound nature of the strong coupling constant on a global-energy scale. Through the meticulous analysis of accumulated experimental data from around the world, we employ the remarkable power of machine learning to unravel its secrets. Our endeavor has yielded an unprecedented outcome a formula that elegantly captures the expansive panorama of the strong coupling constant's distribution. Astonishingly, this newly derived expression bears a striking resemblance to the theoretical framework of Yang-Mills theory. Furthermore, our thorough analysis has brought forth a remarkable revelation. By introducing the venerable Euler's number, $e$, into the functional formula of the strong coupling constant at high energies, we have successfully surmounted the conundrum of infrared divergence. This ingenious addition allows for the seamless transition of the strong coupling constant from the realm of perturbative energies to that of non-perturbative energies. The profound implications of this finding cannot be overstated, as it paves the way for a natural understanding of the dynamics governing the strong coupling constant in a comprehensive energy spectrum. The results presented within this letter shed light on the enigmatic properties of quantum chromodynamics and the intricate interplay of strong coupling constants across both low and high energy scales.Comment: 7 pages, 3 figure

The Navigation Engineering in Developed Hydropower Station

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchive