Results 221 to 230 of about 268,148 (308)

Author Correction: Record of polycyclic aromatic hydrocarbons (PAHs) from prehistoric sediments and human activity in the Lubei plain of China. [PDF]

Sci Rep
Zuo H, Tan Z, Han YM, Mao L, Zheng S, Zhang Q, Wang M, Li S.   +7 more
europepmc   +1 more source

Data‐driven analysis of the spatial dependence of grouting efficiency during tunnel excavation

Deep Underground Science and Engineering, EarlyView.
Prediction of grouting efficiency using machine learning is enhanced by adopting a training strategy that accounts for the grouting process across multiple rounds. Abstract Grouting with water–cement mixtures is the most widely used and cost‐effective method for managing excess water inflow during tunnel construction.
Huaxin Liu, Xunchang Fei, Wei Wu
wiley   +1 more source

Reply to Bourguignon et al.: Convergence is a plausible hypothesis for Quina technology in East Asia. [PDF]

Proc Natl Acad Sci U S A
Ruan QJ, Li H, Marwick B, Peresani M, Moncel MH, Xiao PY, Monod H, Li B, Delpiano D.   +8 more
europepmc   +1 more source

Resonance‐induced restoration of rock permeability degraded by heavy components of crude oil

Deep Underground Science and Engineering, EarlyView.
Resonance‐induced changes occur in filtration properties of sedimentary rocks in crude paraffin oil flow under acoustic vibrations. Experimental data on (a) pressure drop; (b) permeability; (c) pressure at the rock inlet; and (d) pressure at the rock outlet are presented.
Evgenii Riabokon, Qian Yin, Mikhail Guzev, Mikhail Turbakov, Evgenii Kozhevnikov, Nadezhda Riabokon, Ivan Panteleev   +6 more
wiley   +1 more source

Mode of intracontinental mountain building controlled by lower crustal composition and mantle lithosphere depletion. [PDF]

Nat Commun
Xu X, Zuza AV, Gerya T, Chen L, Kuang X, Chen H, Wang B, Liu J, Shi X, Sun Y, Wu L, Han S, Lin X, Yang S, Yin A.   +14 more
europepmc   +1 more source

Rockburst prediction based on data preprocessing and hyperband‐RNN‐DNN

Deep Underground Science and Engineering, EarlyView.
A data preprocessing workflow is proposed to address challenges in rockburst data analysis. Coupled algorithms preprocess the data set, and hyperband optimization is used to enhance RNN performance. Results show that preprocessing improves accuracy, while dense layers enhance model stability and prediction performance.
Yong Fan, Chenxi Yin, Guangdong Yang, Shengyong Ding, Bin Tian   +4 more
wiley   +1 more source

Origin and evolution of fluids and heatflow in geothermal systems of Indus River Basin (IRB), India. [PDF]

Sci Rep
Jeelani G, Lone SA, Deshpande RD, Mukherjee A, Rai SK.   +4 more
europepmc   +1 more source

Creep properties and constitutive model of diabase in deep water conveyance tunnels

Deep Underground Science and Engineering, EarlyView.
The axial and lateral creep characteristics of diabase were analyzed based on compression creep tests. The nonlinear viscoelastic‐plastic model capable of describing the whole creep process was established based on the fractional derivative and damage theories.
Zhigang Tao, Pengxiao Guan, Xiaojie Yang, Keyuan Liu, Mingjiu Cai, Hong Yang   +5 more
wiley   +1 more source

Cascading impacts of the Maunder Minimum on rainfall and society in the Joseon dynasty. [PDF]

Natl Sci Rev
Wang Y, Wei Y, Shi F, Li X, Yao Z, Yan L, Yue Y, Yang S, Lin W, Pan Y, Guo Z.   +10 more
europepmc   +1 more source

Failure characteristics and the energy criterion of rock with a through‐going joint under true‐triaxial unloading conditions: Insights from the DEM model

Deep Underground Science and Engineering, EarlyView.
The rock failure mode is significantly influenced by the contributing factors, such as the joint inclination, the initial confining pressure, and the unloading point. We found six typical rock failure modes after a large number of numerical tests. Abstract Excavation unloading damages rock masses, with preferential failure along geological defects in ...
Fei Liu, Changhui Liang, Sijia Liu, Yongjun Zhang, Luo Wang   +4 more
wiley   +1 more source