Results 161 to 170 of about 357,437 (293)

Untangling the environmental and tectonic drivers of the Noto earthquake swarm in Japan. [PDF]

Sci Adv
Wang QY, Cui X, Frank WB, Lu Y, Hirose T, Obara K.   +5 more
europepmc   +1 more source

Dynamic prediction of coal and gas outburst risk based on quantitative analysis of stress–energy evolution and adaptive correction

Deep Underground Science and Engineering, EarlyView.
This study quantitatively analyzed the spatiotemporal evolution of stress redistribution ahead of the working face by integrating coal seam distribution, tectonic stress anomalies, gas pressure, and mining‐induced disturbances. An R‐value criterion for coal and gas outburst (CGO) risk assessment was established based on energy principles.
Yingjie Zhao, Xueqiu He, Dazhao Song, Liming Qiu, Minggong Guo, Jie Liu, Qiang Liu, Yi Zhu   +7 more
wiley   +1 more source

Global Optimization by Particle Swarm Method:A Fortran Program [PDF]

Programs that work very well in optimizing convex functions very often perform poorly when the problem has multiple local minima or maxima. They are often caught or trapped in the local minima/maxima.
Mishra, SK
core  

Closed‐form stress solution and minimum safe burial depth correction for shallow‐buried large‐diameter energy storage chambers

Deep Underground Science and Engineering, EarlyView.
This study develops a closed‐form solution for stress analysis of shallow‐buried large‐diameter compressed air energy storage (CAES) chambers, explicitly incorporating free surface, lateral pressure, and gravity gradient effects. Validated against numerical simulations, the solution accurately captures stress redistribution and reveals upward migration
Zeyuan Sun, Cheng Zhao, Jinquan Xing
wiley   +1 more source

Select earthquake forecasting models demonstrate consistency with prospective decadal observations in California. [PDF]

Nat Commun
Bayona JA, Serafini F, Silva F, Iturrieta P, Savran WH, Herrmann M, Marzocchi W, Maechling PJ, Werner MJ.   +8 more
europepmc   +1 more source

Developing a universal tunnel span classification from global tunnel databases

Deep Underground Science and Engineering, EarlyView.
A universal tunnel span classification system is introduced that incorporates tunnel span, cross‐sectional area, typical tunnel types, and intended uses. Representative flatness ratio values are also provided for each span class. The classification is derived from a comprehensive database of 450 tunnel profiles from 47 countries.
Simon Heru Prassetyo, Inzagi Suhendar, Semmy Andrew Anugerah Djawa Tagi, Bonifacio Bondan Satryojati, Dzakwan Naufal Pratama, Yeremia Sintong Damero, Yudhidya Wicaksana, Erwin Lim, Ridho Kresna Wattimena   +8 more
wiley   +1 more source

Cascading magmatic unrest and aseismic faulting in the Aegean Sea enabled by elastic stress relay. [PDF]

Sci Adv
Wilding JD, Wang TA, Liu YK, Ross ZE.
europepmc   +1 more source

Bio‐based tannin‐loaded layered double hydroxides in epoxy coatings for smart corrosion protection of steel in underground infrastructure

Deep Underground Science and Engineering, EarlyView.
This study presents a sustainable smart‐coating strategy for protecting underground steel infrastructures from chloride‐induced corrosion. Zinc‐aluminum layered double hydroxides (LDHs) and tannin‐loaded LDHs (LDH–TA) were incorporated into an epoxy matrix to provide both enhanced barrier properties and active, pH‐responsive inhibition.
Veerle Vandeginste, Xinyu Guo, Dawid Kasprzak, Yukun Ji   +3 more
wiley   +1 more source

Preparatory phase of large earthquakes illuminated by unsupervised categorization of earthquake catalog features. [PDF]

Nat Commun
Karimpouli S, Martínez-Garzón P, Núñez-Jara S, Picozzi M, Spallarossa D, Kwiatek G, Dresen G, Bohnhoff M, Beroza GC.   +8 more
europepmc   +1 more source

Real‐time multiscale characterization of water migration in deep coal under stepwise pressure‐increasing injection: Combined low‐field nuclear magnetic resonance and multifractal approach

Deep Underground Science and Engineering, EarlyView.
The graphical abstract illustrates the real‐time multiscale characterization of water migration in deep coal under stepwise pressure‐increasing injection. Under in‐situ hydrostatic pressure, the water invasion front advances progressively along the axial direction as the injection pressure increases stepwise, tracked in real time by nuclear magnetic ...
Lei Song, Hongwei Zhou, Zelin Liu, Yimeng Wang, Xiaohai Zhang, Mingyuan Lu, Yang Ju   +6 more
wiley   +1 more source