Results 11 to 20 of about 177,892 (289)

Geological activity shapes the microbiome in deep-subsurface aquifers by advection. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Zhang Y   +5 more
europepmc   +2 more sources

Water Retention and Saturation Degree of Peat Soil in Sebangau Catchment Area, Central Kalimantan

open access: yesJournal of Tropical Soils, 2021
Water is an essential factor in forming, utilization, management, and sustainability of peat soil. This study was to obtain characteristics of water retention and porosity of peat soil.
Akhmat Sajarwan   +2 more
doaj   +1 more source

A Comparative Study on the Dynamic Tensile Strength Evaluation Method of Rock Materials

open access: yesShock and Vibration, 2023
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

Advances in Defining Ecosystem Functions of the Terrestrial Subsurface Biosphere

open access: yesFrontiers in Microbiology, 2022
The subsurface is one of the last remaining ‘uncharted territories’ of Earth and is now accepted as a biosphere in its own right, at least as critical to Earth systems as the surface biosphere.
D’Arcy R. Meyer-Dombard, Judy Malas
doaj   +1 more source

Experimental Investigation on Effective Distances of Acoustic Emission in Concrete Structures

open access: yesApplied Sciences, 2020
As one of the non-destructive testing (NDT) methods, acoustic emission (AE) can be widely applied to the field of engineering and applied science owing to its advantageous characteristics.
Tae-Min Oh   +4 more
doaj   +1 more source

Thermal conductivity prediction model for compacted bentonites considering temperature variations

open access: yesNuclear Engineering and Technology, 2021
An engineered barrier system (EBS) for the deep geological disposal of high-level radioactive waste (HLW) is composed of a disposal canister, buffer material, gap-filling material, and backfill material.
Seok Yoon   +3 more
doaj   +1 more source

The Mystery of Piezophiles: Understudied Microorganisms from the Deep, Dark Subsurface

open access: yesMicroorganisms, 2023
Microorganisms that can withstand high pressure within an environment are termed piezophiles. These organisms are considered extremophiles and inhabit the deep marine or terrestrial subsurface.
Gabrielle Scheffer, Lisa M. Gieg
doaj   +1 more source

High Abundance of Thaumarchaeota Found in Deep Metamorphic Subsurface in Eastern China

open access: yesMicroorganisms, 2022
Members of the Thaumarchaeota phylum play a key role in nitrogen cycling and are prevalent in a variety of environments including soil, sediment, and seawater.
Wenhui Zhang   +4 more
doaj   +1 more source

Rock Surface Fungi in Deep Continental Biosphere—Exploration of Microbial Community Formation with Subsurface In Situ Biofilm Trap

open access: yesMicroorganisms, 2020
Fungi have an important role in nutrient cycling in most ecosystems on Earth, yet their ecology and functionality in deep continental subsurface remain unknown.
Maija Nuppunen-Puputti   +6 more
doaj   +1 more source

Dark Fermentation in the Dark Biosphere: The Case of Citrobacter sp. T1.2D-12

open access: yesFermentation, 2023
Microbial diversity that thrives in the deep subsurface remains largely unknown. In this work, we present the characterization of Citrobacter sp. T1.2D-1, isolated from a 63.6 m-deep core sample extracted from the deep subsurface of the Iberian Pyrite ...
Violeta Gallego-Rodríguez   +3 more
doaj   +1 more source

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