Results 141 to 150 of about 485,328 (331)

Random finite element analysis on ground subsidence caused by tunnel excavation in karst regions with spatial variable soil

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigates ground subsidence during tunnel excavation in karst areas, highlighting the combined effects of karst cave proximity, cave size, and soil spatial variability. Findings suggest that shorter cave distances and larger cave sizes increase subsidence variability, and a modified Peck formula is proposed for more accurate subsidence ...
Zhenghong Su   +4 more
wiley   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

open access: yesDeep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang   +5 more
wiley   +1 more source

Existence of positive solutions for superlinear p-Laplacian equations

open access: yesElectronic Journal of Differential Equations, 2015
We obtain a positive solution for a superlinear p-Laplacian equations with the Dirichlet boundary-value conditions. Our main tool is a variation of the mountain pass theorem.
Ting-Mei Gao, Chun-Lei Tang
doaj  

Conservation Can Better Integrate Environmental Justice if We Consider People’s Needs

open access: yes
The Bulletin of the Ecological Society of America, EarlyView.
Beck M. Swab
wiley   +1 more source

Centromedian nucleus targeting in the pediatric population treated with thalamic responsive neurostimulation for drug‐resistant epilepsy

open access: yesEpilepsia Open, EarlyView.
Abstract The management of drug‐resistant epilepsy (DRE) in the pediatric population using neurostimulation of the centromedian (CM) nucleus of the thalamus (CMN) has been reported to be effective and safe. We present a case series of pediatric patients treated with responsive neurostimulation (RNS) and report on contact localization in relation to ...
Marian Michael Bercu   +8 more
wiley   +1 more source

Modeling the Probability of Tsunami Fire Ignition Based on Data From the 2011 Tohoku and 2024 Noto Peninsula Earthquakes, With Recommendations to Reduce Emerging Fire Risk in Tsunami Vertical Evacuation Structures

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Recent tsunamigenic earthquakes in Japan have highlighted the emerging fire hazard triggered by tsunami inundation and its impact on tsunami vertical evacuation (TVE) structures. This new type of fire following earthquake, referred to as “tsunami fires,” may be a potential universal hazard that tsunami‐prone countries face; however, it has not
Tomoaki Nishino
wiley   +1 more source

Multiple positive solutions for equations involving critical Sobolev exponent in R^N

open access: yesElectronic Journal of Differential Equations, 1997
$$ -{ m div }(|abla u|^{m-2}abla u) = lambda h u^q+u^{m^*-1},quad{ m in}quad R^N,. $$ Using the Ekeland Variational Principle and the Mountain Pass Theorem, we show the existence of $lambda ^*>0$ such that there are at least two non-negative solutions ...
Claudianor Oliveira Alves
doaj  

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