Results 11 to 20 of about 10,688,728 (289)
Metal Catalysis Acting on Nitriles in Early Earth Hydrothermal Systems
Life, 2023 Hydrothermal systems are areas in which heated fluids and organic molecules rush through basaltic material rich in metals and minerals. By studying malononitrile and acetonitrile, we examine the effects of metal and mineral nanoparticles on nitrile ...
Miranda Sturtz, Christopher House
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Bacterial Diversity and Biogeochemistry of Two Marine Shallow-Water Hydrothermal Systems off Dominica (Lesser Antilles) [PDF]
Frontiers 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
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Life, 2022 Researchers have suggested that the condensation of low-molecular-weight aldehydes under basic conditions (e.g., pH > 11) is the prebiotic reaction responsible for the abiotic formation of carbohydrates.
Claudio Alejandro Fuentes-Carreón +3 more
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Hydrothermal systems on Europa [PDF]
Geophysical Research Letters, 2005 We estimate the global hydrothermal heat transport on Europa by considering the range of heat generation resulting from tidal stresses and radiogenic heat production within Europa's rocky sub‐ocean lithosphere. We show that if factors controlling tidally generated heat on Europa are similar to those on Io, global hydrothermal heat output and its high ...
Robert P. Lowell, Myesha DuBose
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Power systems generation scheduling and optimisation using evolutionary computation techniques [PDF]
, 1996 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Optimal generation scheduling attempts to minimise the cost of power production while satisfying the various operation constraints and physical limitations ...
Orero, Shadrack Otieno
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The Lassen hydrothermal system [PDF]
American Mineralogist, 2016 The active Lassen hydrothermal system includes a central vapor-dominated zone or zones beneath the Lassen highlands underlain by ~240 °C high-chloride waters that discharge at lower elevations. It is the best-exposed and largest hydrothermal system in the Cascade Range, discharging 41 ± 10 kg/s of steam (~115 MW) and 23 ± 2 kg/s of high-chloride waters
Steven E. Ingebritsen +3 more
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mSystems, 2022 Serpentinizing hydrothermal systems result from water circulating into the subsurface and interacting with mantle-derived rocks notably near mid-ocean ridges or continental ophiolites.
Eléonore Frouin +4 more
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Hydrothermal processing of microalgae [PDF]
, 2013 Microalgae are regarded as a promising biomass resource for the production of biofuels and chemicals which does not compete with food production. Microalgae contain large amounts of lipids and have faster growth rates than terrestrial biomass. One of the
Biller, Patrick
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Boletín Geológico, 2020 The products of metasomatic alteration (e.g., carbonation) of peridotites are called listvenites. Based on a description of the outcrops in the laterite deposit at Cerro Matoso located in the NW of Colombia, the mineralogical composition confirmed by ...
Andrés Castrillón, Javier Guerrero
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Seafloor hydrothermal systems [PDF]
Journal of Geophysical Research: Solid Earth, 1995 The discovery of seafloor hydrothermal systems approximately two decades ago has led to a major reassessment of the Earth's thermal and geochemical budgets and has revolutionized our understanding of biological processes. This review traces the development of the study of seafloor hydrothermal systems from the indirect evidence provided by conductive ...
Robert P. Lowell +2 more
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