Results 31 to 40 of about 177,892 (289)

Molecular analysis of deep-subsurface bacteria [PDF]

open access: yesApplied and Environmental Microbiology, 1990
Bacterial isolates from deep-sediment samples from three sites at the Savannah River site, near Aiken, S.C., were studied to determine their microbial community composition and DNA structure by using total DNA hybridization and moles percent G + C.
openaire   +2 more sources

Numerical Study on the Effect of Enhanced Buffer Materials in a High-Level Radioactive Waste Repository

open access: yesApplied Sciences, 2021
In deep geological disposal system designs, it is important to minimize the installation area for cost effectiveness while satisfying the thermal requirements of the systems.
Min-Jun Kim, Gi-Jun Lee, Seok Yoon
doaj   +1 more source

Abundance of small individuals influences the effectiveness of processing techniques for deep-sea nematodes [PDF]

open access: yes, 2010
Nematodes are the most abundant metazoans of deep-sea benthic communities, but knowledge of their distribution is limited relative to larger organisms.
Berkenbusch, K.   +4 more
core   +2 more sources

Exploring the Deep Marine Biosphere: Challenges, Innovations, and Opportunities

open access: yesFrontiers in Earth Science, 2019
The deep marine biosphere is one of the largest, and yet least explored, microbial habitats on the planet. Quantifying the extent, diversity, and activity of subsurface microbial communities is a crucial part of understanding their role in global ...
Anaïs Cario   +4 more
doaj   +1 more source

Evaluation of the Dynamic Stability of Underground Structures Assuming a Hydrogen Gas Explosion Disaster in a Shallow Underground Hydrogen Storage Facility

open access: yesApplied Sciences, 2023
Amid the ongoing global warming crisis, there has been growing interest in hydrogen energy as an environmentally friendly energy source to achieve carbon neutrality.
Gyu-Hyun Go   +5 more
doaj   +1 more source

Subsurface tropical Pacific nitrogen isotopic composition of nitrate: Biogeochemical signals and their transport [PDF]

open access: yes, 2011
We report measurements of the nitrogen isotopic composition of nitrate (the δ15N of NO3−) across the equatorial Pacific, for zonal transects from 165°E to 95°W and meridional transects across 95° and 110°W.
Charles, Christopher D.   +4 more
core   +1 more source

Deep Subsurface Microbiology

open access: yes, 2015
Deep subsurface microbiology is a highly active and rapidly advancing research field at the interface of microbiology and the geosciences; it focuses on the detection, identification, quantification, cultivation and activity measurements of bacteria, archaea and eukaryotes that permeate the subsurface biosphere of deep marine sediments and the basaltic
Axel Schippers   +3 more
openaire   +3 more sources

Three-dimensional hollow tubular structure of rocket chemical depletion [PDF]

open access: yesAtmospheric Chemistry and Physics
The rocket launch process causes a series of disturbances in the ionosphere, among which a typical phenomenon is the formation of ionospheric electron density depletions caused by chemical reactions involving rocket exhaust, known as Holes in the ...
C. Deng   +12 more
doaj   +1 more source

Deep carbon storage potential of buried floodplain soils. [PDF]

open access: yes, 2017
Soils account for the largest terrestrial pool of carbon and have the potential for even greater quantities of carbon sequestration. Typical soil carbon (C) stocks used in global carbon models only account for the upper 1 meter of soil.
D'Elia, Amanda H   +3 more
core   +1 more source

Life in the deep subsurface [PDF]

open access: yesGeology, 2011
able in the subsurface (Wolfe-Simon et al., 2010). This suggests that life may not be as elementally limited as postulated, and that a biosphere of arsenic-utilizing life may exist in the subsurface on Earth, other planets, moons, or asteroids. Despite these results, which question and extend our fundamental understanding of life, its constituents ...
openaire   +2 more sources

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