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Xuwei Zhao, Jia Li, Wei Liu and Wenge Qiu
The engineering technology of undercrossing an airport flight area is relatively mature; however, the use of shield tunnels crossing the operating airport flight area in high liquidity sandy cobble stratum has rarely been reported. To discuss the feasibi...
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Feng Han, Chengxiang Wang, Zhibo Liu, Liangying Li and Wenhua Yin
After the construction of desert highway, the physiognomy changes caused by surface wind erosion and accumulation not only seriously threaten the stability of road structure, but also have a tremendous impact on the safety of the highway operation and th...
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Ayodeji Oke, John Atofarati, Sherifat Bello
3D printing has been popular in the manufacturing industry as a means of automating processes, speeding up production, and reducing waste. It is frequently seen as a relatively new technology, even though it has been in use for more than three decades. T...
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Boris Melnikov
Pág. 1 - 9
In the paper, we consider all possible subsets of the set of potential roots forming in some situations semi-lattices, by intersection and / or by union. Such structures arise in two similar problems in the theory of formal languages. Spec...
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Alexandra O. Shabarkova,Mikhail B. Abrosimov
Pág. 28 - 32
One of the most important types of graphs are tournaments, as they find practical application in many areas of our lives. Recall that a tournament is a complete oriented graph, that is, a directed graph, between each pair of its vertices there is a singl...
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