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1 Introduction With the development of economy, the global energy consumption has increased dramatically. From 1970 to 2012, the energy consumption of major energy consuming countries increased by 185% [1]. According to incomplete statistics, China ‘s apparent consumption of crude oil in 2024 is 58.8% higher than that in 2012. The global coalbed methane industry has entered a period of rapid development.
The numerical simulation of shale gas reservoirs requires transforming mathematical models into large linear equation systems, and solving large linear equation systems requires a lot of time. A novel ILU-GMRES method for solving large linear equations is presented, which treats the sub matrix discretized at nodes as the basic elements of the coefficient matrix.
Urumqi, 8 Aug (ZXS) -- Xinjiang's "ethnic music recorders" use digital protection to inherit old skills Written by Hu Jiachen In the past 13 years since he came to Xinjiang, Wang Jiangjiang has traveled to more than 300 villages and recorded written and video materials for more than 2000,<> intangible cultural inheritors and folk artists. "What's the significance? What do you want to achieve in the end?
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