Results 51 to 60 of about 157,645 (312)

Experimental investigation of thermophysical properties in CO2-saturated Brine under variable temperatures (303 to 333 K), pressures (0.1 to 30 MPa), and salt types and concentrations

Discover Applied Sciences
This study focuses on investigating the thermophysical properties of brines under conditions associated with geothermal energy extraction and enhanced geothermal systems (EGS), particularly examining parameters such as density, viscosity, and pH.
Shahram Mohammadi, William Kobby Jones, Philip Jaeger, Hanin Samara   +3 more
doaj   +1 more source

Object Biography of a Series of Radioactive Drill Cores from Shinkolobwe, Democratic Republic of Congo

Museum & Society
This object biography takes as its starting point a radioactive drill core encountered in a collection of geological samples in the Democratic Republic of Congo.
Livia Cahn
doaj   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 more
wiley   +1 more source

Efficient Model Calibration Using Submodels

Water Resources Research
Groundwater models tend to become increasingly detailed to accommodate increasing data availability and higher accuracy demands from stakeholders. As runtimes increase almost quadratically with the number of model cells, this makes the models ever more ...
P. T. M. Vermeulen, G. M. C. M. Janssen, T. Kroon   +2 more
doaj   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Full Coupling Between the Atmosphere, Surface, and Subsurface for Integrated Hydrologic Simulation

Journal of Advances in Modeling Earth Systems, 2018
An ever increasing community of earth system modelers is incorporating new physical processes into numerical models. This trend is facilitated by advancements in computational resources, improvements in simulation skill, and the desire to build numerical
Jason Hamilton Davison, Hyoun‐Tae Hwang, Edward A. Sudicky, Derek V. Mallia, John C. Lin   +4 more
doaj   +1 more source

Radar Soundings of the Subsurface of Mars

Science, 2005
The martian subsurface has been probed to kilometer depths by the Mars Advanced Radar for Subsurface and Ionospheric Sounding instrument aboard the Mars Express orbiter. Signals penetrate the polar layered deposits, probably imaging the base of the deposits.
Picardi, Giovanni, Plaut, Jeffrey, Biccari, Daniela, Bombaci, Ornella, Calabrese, Diego, Cartacci, Marco, Cicchetti, Andrea, Clifford, Stephen, Edenhofer, Peter, Farrell, William, Federico, Costanzo, Frigeri, Alessandro, Gurnett, Donald, Hagfors, Tor, Heggy, Essam, Hérique, Alain, Huff, Richard, Ivanov, Anton, Johnson, William, Jordan, Rolando, Kirchner, Donald, Kofman, Wlodek, Leuschen, Carlton, Nielsen, Erling, Orosei, R., Pettinelli, Elena, Phillips, Roger, Plettemeier, Dirk, Safaeinili, Ali, Seu, Roberto, Stofan, Ellen, Vannaroni, Giuliano, Watters, Thomas, Zampolini, Enrico   +33 more
openaire   +7 more sources

Identification of subsurface structures using electromagnetic data and shape priors [PDF]

, 2015
We consider the inverse problem of identifying large-scale subsurface structures using the controlled source electromagnetic method. To identify structures in the subsurface where the contrast in electric conductivity can be small, regularization is ...
Lien, Martha, Bakr, Shaaban A., Mannseth, Trond, Tveit, Svenn   +3 more
core   +1 more source

Electrified Damage in Motion Systems

Advanced Engineering Materials, EarlyView.
The electrified damage in motion systems is a fundamental framework presenting the degradation pathway arising from the coupling of electrical energy transport with mechanical contact and interfacial chemistry. The framework positions electrified damage as a distinct degradation regime with unique characteristic surface morphologies and failures of ...
M. Humaun Kabir, Angelina Nguyen, Hong Liang   +2 more
wiley   +1 more source

Biogeochemical Cycling by a Low-Diversity Microbial Community in Deep Groundwater

Frontiers in Microbiology, 2018
Olkiluoto, an island on the south-west coast of Finland, will host a deep geological repository for the storage of spent nuclear fuel. Microbially induced corrosion from the generation of sulphide is therefore a concern as it could potentially compromise
Emma Bell, Tiina Lamminmäki, Johannes Alneberg, Anders F. Andersson, Chen Qian, Weili Xiong, Robert L. Hettich, Louise Balmer, Manon Frutschi, Guillaume Sommer, Rizlan Bernier-Latmani   +10 more
doaj   +1 more source