|
|
|
|
|
Vladimir Khorev, Viktor Kazantsev and Alexander Hramov
A network model of epidemic spread accounting for inhomogeneous population district division is investigated. Motivated by the COVID-19 pandemic, we analyze the effects of infection development in the area, for example, of a city divided into several pop...
ver más
|
|
|
|
|
|
|
|
|
Suming Ren, Heng Zhao, Honglu Zhang, Fuqiang Wang and Huan Yang
The Yellow River Basin holds significance as a vital ecological shield and economic hub within China. Adapting land utilization practices and optimizing landscape patterns are of paramount significance in preserving the ecological equilibrium of the Yell...
ver más
|
|
|
|
|
|
|
|
|
Ao Zhang, Xinwen Zhao, Jun He, Xuan Huang, Xingyuezi Zhao and Yongbo Zhao
Wuhan has a dense network of rivers and lakes. Due to the city?s development, the water system has been fragmented, the degradation of lakes is becoming increasingly severe, and the eco-environment has been significantly damaged. By collecting samples of...
ver más
|
|
|
|
|
|
|
|
|
Hu Liu, Meng Li and Yijun Shen
As oil and natural gas production continue to go deeper into the ocean, the flexible riser, as a connection to the surface of the marine oil and gas channel, will confront greater problems in its practical application. Composite materials are being consi...
ver más
|
|
|
|
|
|
|
|
|
Ding Liu, Wuyue Rong, Jin Zhang and Ying-En (Ethan) Ge
In this paper, the nonlinear effects of the built environment on bus?metro-transfer ridership are explored, based on Shanghai metro data, with an extreme gradient-boosting decision-trees (XGBoost) model. It was found that the bus-network density had the ...
ver más
|
|
|
|