Results 181 to 190 of about 177,892 (289)

The Deep Subsurface Biosphere and its Substrates Along a One-Million-Year Ferruginous Lake Archive. [PDF]

Microb Ecol
Ruiz-Blas F, Friese A, Bartholomäus A, Henny C, Russell JM, Kallmeyer J, Vuillemin A.   +6 more
europepmc   +1 more source

Numerical simulation study on the evolution of the temperature field and frozen wall in fractured rock mass

Deep Underground Science and Engineering, EarlyView.
The evolution of the temperature field and frozen wall under different fracture conditions was examined by an artificial ground freezing‐based thermal‐hydraulic coupled model. It was observed that fracture inclination affects the interaction extent of freezing pipes and fracture, while phase transition extent is the dominant factor for heat transfer in
Chenyi Zhang, Tingting Luo, Tao Zhang, Tao Han, Xiaodong Zhao, Haipeng Li, Yanfei Ma, Faxing Zhang, Madhusudhan Bangalore Narasimha Murthy, Weihao Yang   +9 more
wiley   +1 more source

Calorimetric measurement of energy and nutrient stimulation of microorganisms from the continental deep subsurface. [PDF]

Front Microbiol
Feyhl-Buska J, Wu F, Smith IE, LaRowe DE, Robador A, Kruger B, Osburn MR, Amend JP.   +7 more
europepmc   +1 more source

Active sulfur cycling in the terrestrial deep subsurface. [PDF]

ISME J, 2020
Bell E, Lamminmäki T, Alneberg J, Andersson AF, Qian C, Xiong W, Hettich RL, Frutschi M, Bernier-Latmani R.   +8 more
europepmc   +1 more source

Mechanistic insights across curing regimes for enzymatic and biopolymer‐optimized reinforcement in rock masses

Deep Underground Science and Engineering, EarlyView.
This study examines the effects of curing temperature on the mechanical behavior of underground rock masses treated with enzyme‐induced calcite precipitation (EICP) and an innovative biopolymer‐modified EICP (BP‐EICP). Abstract Biocementation is an innovative and sustainable technique for reinforcing weak and weathered rock masses in natural and ...
Mary C. Ngoma, Oladoyin Kolawole
wiley   +1 more source

Carbon metabolic versatility underpins Bathyarchaeia ecological significance across the global deep subsurface. [PDF]

ISME J
Hou J, Yang C, Wang F.
europepmc   +1 more source

Biochemical Cycling in Deep Subsurface Ecosystems

Biochemical Cycling in Deep Subsurface Ecosystems
identifier:oai:t2r2.star.titech.ac.jp ...
openaire  

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Subduction hides high-pressure sources of energy that may feed the deep subsurface biosphere. [PDF]

Nat Commun, 2020
Vitale Brovarone A, Sverjensky DA, Piccoli F, Ressico F, Giovannelli D, Daniel I.   +5 more
europepmc   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source