Results 41 to 50 of about 609,822 (341)

Understanding the Compositional Variability of the Major Components of Hydrothermal Plumes in the Okinawa Trough

open access: yesGeofluids, 2018
Studies of the major components of hydrothermal plumes in seafloor hydrothermal fields are critical for an improved understanding of biogeochemical cycles and the large-scale distribution of elements in the submarine environment. The composition of major
Zhigang Zeng   +3 more
doaj   +1 more source

Bacterial Diversity and Biogeochemistry of Two Marine Shallow-Water Hydrothermal Systems off Dominica (Lesser Antilles)

open access: yesFrontiers in Microbiology, 2017
Shallow-water hydrothermal systems represent extreme environments with unique biogeochemistry and high biological productivity, at which autotrophic microorganisms use both light and chemical energy for the production of biomass. Microbial communities of
Petra Pop Ristova   +3 more
doaj   +1 more source

Hydrothermal Laboratory [PDF]

open access: yesJournal of large-scale research facilities JLSRF, 2016
The hydrothermal laboratory is equipped with horizontal and vertical cold-seal pressure vessels for the synthesis of crystals or glasses or to study interactions between minerals/rocks, melts, and fluids at hydrostatic conditions. An advantage is that long-term runs can be done to investigate equilibria between solid phases.
openaire   +2 more sources

Space-weighted seismic attenuation mapping of the aseismic source of Campi Flegrei 1983-84 unrest [PDF]

open access: yes, 2017
Peer reviewedPublisher ...
Amoruso, A   +5 more
core   +1 more source

Effect of the coexistence of SO32− and PO43− on the adsorption performance of zeolite-loaded FeOOH@ZnO for S2−

open access: yesWater Science and Technology, 2021
The present study deals with the synthesis of zeolite-loaded FeOOH@ZnO by hydrothermal method and investigates the effects of coexisting SO32− and PO43− ions in the aqueous solution on the adsorption performance for S2−.
Fen Li   +5 more
doaj   +1 more source

Metastable Nanosized Diamond Formation from Fluid Systems [PDF]

open access: yes, 2010
The model of nanosized diamond particles formation at metastable P-T parameters from fluid is presented. It explains the specific of CVD diamond synthesis gases mixtures and hydrothermal growth of diamond at low P-T parameters as well as it explains the ...
Sergei Simakov
core   +2 more sources

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

open access: yesAdvanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park   +8 more
wiley   +1 more source

Research on Submarine Hydrothermal Activity and Its Material Circulation, Magmatic Setting, and Seawater, Sedimentary, Biologic Effects

open access: yesJournal of Marine Science and Engineering
Submarine hydrothermal activity has been a focused research topic since its discovery in the 1970s [...]
Zhigang Zeng, Yuxiang Zhang, Zuxing Chen
doaj   +1 more source

Influence of Curing Regimes on Engineering and Microstructural Properties of Geopolymer-Based Materials from Water Treatment Residue and Fly Ash

open access: yesInternational Journal of Technology, 2021
Geopolymerization is a new method for treating water treatment residue (WTR) from water purification plants to reduce the amount of stored land in urban areas. Polymeric bond formation depends on the curing conditions.
Nguyen Hoc Thang   +2 more
doaj   +1 more source

Thermophilic Sulfate Reduction in Hydrothermal Sediment of Lake Tanganyika, East Africa [PDF]

open access: yes, 1994
In environments with temperatures above 60 degrees C, thermophilic prokaryotes are the only metabolically active life-forms. By using the (SO42-)-S-35 tracer technique, we studied the activity of sulfate-reducing microorganisms (SRM) in hot sediment from
Elsgaard, L.   +3 more
core   +1 more source

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