dynamic behavior of the wind-excited-benchmark-building using semi-active electromagnetic friction dampers (saemfds), with modulated homogeneous friction algorithm is presented. the performance of the benchmark building is studied under across wind loads by installing the saemfds with smooth boundary layer semi-active friction (sblsaf) algorithm. the governing equations of motion are solved by ...

Building construction challenge, in recent years, is the reduction of social, economical and environmentalimpacts along with economical nature and increasing life quality, as here sustainable construction is important. Pre-fabrication and industrialization are referred as a solution of sustainable construction due to some of its main characteristics consisting of many sustainability aspects. Du...

We continue a study of the equivalence class induced on Sn when one is permitted to replace a consecutive set of elements in a permutation with the same elements in a different order. For each possible set of allowed replacements, we characterise and/or enumerate the set of permutations reachable from the identity. In some cases we also count the number of equivalence classes. Résumé. Nous étud...

The artificial freezing method can effectively improve the stability of strata and provide favorable conditions for construction safety shield tunnel in water-rich strata. Based on frozen tunneling project a metro station, which is close to important buildings, reasonable parameters are proposed this paper. simulation model was established by using Plaxis 3D finite element software (Version 201...

The excavation of a foundation pit will break the original stress balance and affect surface settlement natural adjacent buildings, so deformation control is very important. In this paper, numerical simulation results additional caused by were compared with experimental to verify accuracy model obtain reliable ratio building width average particle size sand that was not affected effect. Then, d...

In a drawing of a graph, two edges form an odd pair if they cross each other an odd number of times. A pair of edges is independent if they share no endpoint. For a graph G, let ocr(G) be the smallest number of odd pairs in a drawing of G and let iocr(G) be the smallest number of independent odd pairs in a drawing of G. We construct a graph G with iocr(G) < ocr(G), answering a question by Széke...

We give a description of the minimal primes of the ideal generated by the 2×2 adjacent minors of a generic matrix. We also compute the complete prime decomposition of the ideal of adjacent m×m minors of an m×n generic matrix when the characteristic of the ground field is zero. A key intermediate result is the proof that the ideals which appear as minimal primes are, in fact, prime ideals. This ...