Results 1 to 10 of about 53,720 (260)
Finite element modelling of unsaturated soils using a modified version of the Barcelona Basic Model [PDF]
In this paper, unsaturated soil behaviour is numerically simulated using a modified version of the Barcelona Basic Model. The model has been implemented as a User-Defined Soil Model (UDSM) in the finite element code PLAXIS.
Laera Anita +2 more
doaj +1 more source
Machine learning application for prediction of sonic wave transit time - A case of Niger Delta basin
Sonic wave transit times are the major logs for estimating pertinent geomechanical parameters including overburden stress, pore pressure, effective stress, and unconfined compressible strength among others.
Oluwaseun Daniel Akinyemi +5 more
doaj +1 more source
Automated Cloud Based Long Short-Term Memory Neural Network Based SWE Prediction
Snow derived water is a critical component of the US water supply. Measurements of the Snow Water Equivalent (SWE) and associated predictions of peak SWE and snowmelt onset are essential inputs for water management efforts.
Alireza Yekta Meyal +6 more
doaj +1 more source
A Comparative Study on the Dynamic Tensile Strength Evaluation Method of Rock Materials
The representative calculation methods of dynamic tensile strength applied to the spalling test are comparatively reviewed in the same experimental cases. The results are compared with those of the ISRM suggested dynamic BD method.
Se-Wook Oh +3 more
doaj +1 more source
Subsurface Topographic Modeling Using Geospatial and Data Driven Algorithm
Infrastructures play an important role in urbanization and economic activities but are vulnerable. Due to unavailability of accurate subsurface infrastructure maps, ensuring the sustainability and resilience often are poorly recognized.
Abbas Abbaszadeh Shahri +2 more
doaj +1 more source
Developments in 3D Visualisation of the Rail Tunnel Subsurface for Inspection and Monitoring
Railway Tunnel SubSurface Inspection (RTSSI) is essential for targeted structural maintenance. ‘Effective’ detection, localisation and characterisation of fully concealed features (i.e., assets, defects) is the primary challenge faced by RTSSI engineers,
Thomas McDonald +2 more
doaj +1 more source
Despite being considered an extreme environment, several studies have shown that life in the deep subsurface is abundant and diverse. Microorganisms inhabiting these systems live within the rock pores and, therefore, the geochemical and geohydrological ...
Cristina Escudero +8 more
doaj +1 more source
Parapatric speciation of Meiothermus in serpentinite-hosted aquifers in Oman
The factors that control the distribution and evolution of microbial life in subsurface environments remain enigmatic due to challenges associated with sampling fluids from discrete depth intervals via boreholes while avoiding mixing of fluids.
Mason Munro-Ehrlich +5 more
doaj +1 more source
Determining the mechanisms, traits, and pathways that regulate microbial transformation of natural organic matter (NOM) is critical to informing our understanding of the microbial impacts on the global carbon cycle.
Kristine Grace M. Cabugao +6 more
doaj +1 more source
Pristine groundwater is a highly stable environment with microbes adapted to dark, oligotrophic conditions. Input events like heavy rainfalls can introduce the excess particulate organic matter, including surface-derived microorganisms, thereby ...
Patricia Geesink +4 more
doaj +1 more source

