Results 11 to 20 of about 6,618 (173)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+9 more sources

Silica cycling in the ultra-oligotrophic eastern Mediterranean Sea [PDF]

open access: yesBiogeosciences, 2014
Although silica is a key plant nutrient, there have been few studies aimed at understanding the Si cycle in the eastern Mediterranean Sea (EMS). Here we use a combination of new measurements and literature values to explain the silicic acid distribution ...
M. D. Krom, N. Kress, K. Fanning
doaj   +1 more source

Fine defective structure of silicon carbide powders obtained from different starting materials [PDF]

open access: yesScience of Sintering, 2006
The fine defective structure of silicon carbide powders obtained from silicic acid-saccharose, aerosil-saccharose, aerosil-carbon black, and hydrated cellulose-silicic acid gel systems was investigated.
Tomila T.V.   +5 more
doaj   +1 more source

Selective removal of silicic acid by a gallic-acid modified resin

open access: yesJournal of Water Reuse and Desalination, 2019
To remove silicic acid from aqueous solutions, a novel gallic acid-type resin (GA-type resin) was prepared by a grafting method. The effects of the adsorption capacity, pH and presence of NaCl, NaNO3, Na2SO4, and NaCO3 salts on the silicic acid removal ...
Shuqin Bai, Jue Han, Cong Du, Wei Ding
doaj   +1 more source

Binder properties for zol-silicate paint [PDF]

open access: yesНанотехнологии в строительстве, 2022
: Introduction. The binder for sol-silicate paints is made on the basis of a polysilicate solution obtained on the basis of liquid glass and silicic acid sol.
Yulia A. Sokolova, Valentina I. Loganina
doaj   +1 more source

Biogenic silica production and diatom dynamics in the Svalbard region during spring [PDF]

open access: yesBiogeosciences, 2018
Diatoms are generally the dominant contributors to the Arctic Ocean spring bloom, which is a key event in regional food webs in terms of capacity for secondary production and organic matter export.
J. W. Krause   +11 more
doaj   +1 more source

Foliar amendment of silicic acid on population of yellow mite, Oligonychus sacchari (Acari: Tetranychidae) and its predatory beetle, Stethorus gilvifrons (Col.: Coccinellidae) on two sugarcane commercial varieties 

open access: yesPersian Journal of Acarology, 2020
Sugarcane (interspecific hybrids of Saccharum) is a strategically important cash crop that has an economic and social impact in many countries. Sugarcane mite, Oligonychus sacchari is one of the most detrimental arthropod pests associated with sugarcane
Amin Nikpay, Henk-Maarten Laane
doaj   +1 more source

Synthesis of mesoporous silica from geothermal water

open access: yesScientific Reports, 2021
Mesoporous silica was successfully synthesized for the first time using geothermal water from the Onuma Geothermal Power Plant, Akita Prefecture, Japan. Cetyltrimethylammonium bromide (CTAB) was used as an organic template for the synthesis.
Yujiro Watanabe   +6 more
doaj   +1 more source

ON THE SEPARATION OF TUNGSTIC AND SILICIC ACIDS. [PDF]

open access: yesJournal of the American Chemical Society, 1901
n ...
Wells, H. L., Metzger, F. J.
openaire   +2 more sources

Macro-nutrient concentrations in Antarctic pack ice: Overall patterns and overlooked processes

open access: yesElementa: Science of the Anthropocene, 2017
Antarctic pack ice is inhabited by a diverse and active microbial community reliant on nutrients for growth. Seeking patterns and overlooked processes, we performed a large-scale compilation of macro-nutrient data (hereafter termed nutrients) in ...
François Fripiat   +22 more
doaj   +1 more source

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