Results 151 to 160 of about 924,508 (327)

Overview of hydrogen production processes: Health and environmental impact

Environmental Progress &Sustainable Energy, EarlyView.
Abstract Hydrogen is traditionally regarded as a cornerstone in the path to a sustainable energy economy. However, there are substantial differences in the inclusion of environmental and health effects across the hydrogen production pathways, due to different feedstocks, technologies, and byproduct emissions.
Kush Kumar Dewangan, Gokul Gopan, Satyajit Pattanayak   +2 more
wiley   +1 more source

Oceanus. [PDF]

, 2000
v. 42, no.
Woods Hole Oceanographic Institution.
core   +1 more source

Nitrogen Oxide Concentrations in Natural Waters on Early Earth

, 2019
A key challenge in origins-of-life studies is estimating the abundances of species relevant to the chemical pathways proposed to have contributed to the emergence of life on early Earth.
Babbin, Andrew R., Ranjan, Sukrit, Rimmer, Paul B., Sasselov, Dimitar D., Todd, Zoe R.   +4 more
core   +1 more source

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Measuring the Form of Iron in Hydrothermal Plume Particles [PDF]

Oceanography, 2012
The global mid-ocean ridge (MOR) system is a 60,000 km submarine volcanic mountain range that crosses all of the major ocean basins on Earth. Along the MOR, subseafloor seawater circulation exchanges heat and elements between the oceanic crust and ...
Brandy M. Toner, Matthew A. Marcus, Katrina J. Edwards, Olivier Rouxel, Christopher R. German   +4 more
doaj  

Chemical environments of submarine hydrothermal systems [PDF]

Perhaps because black-smoker chimneys make tremendous subjects for magazine covers, the proposal that submarine hydrothermal systems were involved in the origin of life has caused many investigators to focus on the eye-catching hydrothermal vents.
Shock, Everett L.
core   +1 more source

Nanoengineered neutrophils integrated with magnetic nanoparticles for T2‐weighted magnetic resonance imaging‐guided enhanced magnetic hyperthermia therapy of pancreatic tumor

Interdisciplinary Medicine, EarlyView.
An engineered neutrophil‐based targeted magnetic hyperthermia therapy was developed. Magnetic‐heat particles hitchhike on neutrophils that home to the tumor; under alternating magnetic fields the nano‐particles heat up to kill cancer cells and simultaneously trigger the cells to release reactive oxygen species for deeper clearance, doubling the punch ...
Muladili Mutailipu, Ran Cui, Tianxiao Mei, Zinan Zhao, Yongkun Wang, Chunxiu Dong, Bingdi Chen, Yihui Hu, Wenjun Le, Bo Chen   +9 more
wiley   +1 more source

Development of a moored radium in situ sampler to measure annual time series

Limnology and Oceanography: Methods, EarlyView.
Abstract Radium is a useful tracer of sediment‐derived materials, improving our understanding of the geochemical cycling of elements at ocean boundaries. We have developed an autonomous in situ sampler to collect time series samples of radium isotopes on mooring deployments.
Lauren Kipp, Matthew A. Charette, Paul Henderson, Joshua Benedict, Igor Polyakov, Andrey Pnyushkov   +5 more
wiley   +1 more source

Large-scale groundwater flow and sedimentary diagenesis in continental shelves influence marine chemical budgets

Nature Communications
The major ion chemistry of the ocean has been assumed to be controlled by river input, hydrothermal circulation at mid-ocean ridges, carbonate production, and low-temperature alteration of seafloor basalt, but marine chemical budgets remain difficult to ...
Alicia M. Wilson, Andrew Osborne, Scott M. White   +2 more
doaj   +1 more source

Diagenetic, metamorphic, and hydrogeologic consequences of hydrothermal circulation in subducting crust [PDF]

, 2018
G. A. Spinelli, Ikuko Wada, Kelin Wang, Jiangheng He, Robert N. Harris, Michael B. Underwood   +5 more
openalex   +1 more source