Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Zhixi LIU"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract Deep rock are often in a true triaxial stress state. Studying the impacts of varying unloading speeds on their strain energy (SE) density is highly significant for predicting rock stability. Through true triaxial unloading principal stress e
Externí odkaz:
https://doaj.org/article/b622f18380e14abca71677d546ab40d8
Autor:
Qihang ZHANG, Xiangrui MENG, Guangming ZHAO, Wensong XU, Chongyan LIU, Zhixi LIU, Xukun WU, Minjie QI
Publikováno v:
Meitan xuebao, Vol 49, Iss S1, Pp 182-196 (2024)
To investigate the effects of different rates on the energy and damage evolution of sandstone during true triaxial cyclic loading and unloading damage, the true triaxial compression test, true triaxial primary loading and unloading test, and true tri
Externí odkaz:
https://doaj.org/article/1ac93a4a157748909c4974d89c35ba67
Autor:
Xiaodie Liu, Zhixi Liu
Publikováno v:
Frontiers in Earth Science, Vol 11 (2024)
To investigate the influence of the length-to-diameter (L/D) ratio and strain rate on the evolution of strain energy of sandstone under uniaxial compression, experimental tests were conducted using the RMT-150B rock mechanics test system. Specificall
Externí odkaz:
https://doaj.org/article/528d11341aff40d4ac2e0e79d497a696
Publikováno v:
Meitan xuebao, Vol 48, Iss 4, Pp 1502-1515 (2023)
In the process of underground excavation, the surrounding rock is in a very complex stress environment, especially under the influence of its anisotropy, the occurrence of dynamic disaster is hidden. In this paper, the loading and unloading tests of
Externí odkaz:
https://doaj.org/article/0eafe765f74e46ec8cd7ff1202bd962c
Publikováno v:
International Journal of Mining Science and Technology, Vol 33, Iss 3, Pp 275-287 (2023)
Investigation of unloading rock failure under different σ2 facilitates the control mechanism of excavation surrounding rock. This study focused on single-sided unloading tests of granite specimens under true triaxial conditions. The strength and fai
Externí odkaz:
https://doaj.org/article/14c687eb09cb4cc5bf192775f2e4a9c9
Publikováno v:
BMC Infectious Diseases, Vol 23, Iss 1, Pp 1-11 (2023)
Abstract Background During October 2021, China experienced localized outbreaks of COVID-19 in many cities. We analyzed the small local outbreak in Zunyi (Guizhou Province), a major city in southwestern China, and modeled the effects of different inte
Externí odkaz:
https://doaj.org/article/b2dff1b8c213408a8a683d40dd53205d
Autor:
Zhixi Liu, Mengying Li, David W. Hutton, Abram L. Wagner, Ye Yao, Wenlong Zhu, Lingsheng Cao, Shenglan Tang, Jinhua Pan, Yesheng Wang, Qi Zhao, Hong Ren, Ying Wang, Weibing Wang
Publikováno v:
Infectious Diseases of Poverty, Vol 11, Iss 1, Pp 1-10 (2022)
Abstract Background Elimination of hepatitis B virus (HBV) is a striking challenge for countries with high or moderate disease burden. Therefore, using China as a practical case to share experiences for similar countries may accelerate the achievemen
Externí odkaz:
https://doaj.org/article/bf6bc01746bd431b9c5690ce108f82a4
Autor:
Zhixi Liu, Xiaodie Liu
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
In the process of roadway excavation, the rock mass around the roadway is often subjected to cyclic loads, and the rock mechanical properties and strain energy evolution under cyclic loads are obviously different from those under compression, so it i
Externí odkaz:
https://doaj.org/article/57e47e48a5754c2bb585d0db63c8b6ad
Autor:
Meng Wang, Jinhua Pan, Xinghui Li, Mengying Li, Zhixi Liu, Qi Zhao, Linyun Luo, Haiping Chen, Sirui Chen, Feng Jiang, Liping Zhang, Weibing Wang, Ying Wang
Publikováno v:
BMC Public Health, Vol 22, Iss 1, Pp 1-11 (2022)
Abstract Objective To compare an autoregressive integrated moving average (ARIMA) model with a model that combines ARIMA with the Elman recurrent neural network (ARIMA-ERNN) in predicting the incidence of pertussis in mainland China. Background The i
Externí odkaz:
https://doaj.org/article/cd25e37d07034366b861385f5be97c62
Publikováno v:
Infectious Diseases of Poverty, Vol 11, Iss 1, Pp 1-13 (2022)
Abstract Background While a COVID-19 vaccine protects people from serious illness and death, it remains a concern when and how to lift the high-cost and strict non-pharmaceutical interventions (NPIs). This study examined the joint effect of vaccine c
Externí odkaz:
https://doaj.org/article/391f37eb7fce4dad94e2e7f9cdfa183d