Results 41 to 50 of about 225,314 (391)

Improvement of post-nickel mining soil fertility with biochar and calcite

Journal of Degraded and Mining Lands Management, 2022
Reclamation of post-nickel mining soil requires a long process and renewable innovations to improve soil properties. One of the alternative technologies for post-mining soil reclamation is utilizing oil palm empty fruit bunches (OEFB) as biochar and ...
Muhammad Jayadi, Kadar Wahid, Risma Neswati, Andri Andriansyah   +3 more
doaj   +1 more source

The onset of the Dead Sea transform based on calcite age-strain analyses

, 2017
The onset and evolution of the Dead Sea transform are re-evaluated based on new in situ U-Pb dating and strain analyses of mechanically twinned calcites.
P. Nuriel, R. Weinberger, A. Kylander‐Clark, B. Hacker, J. Craddock   +4 more
semanticscholar   +1 more source

3D Chitin Scaffolds of Marine Demosponge Origin for Biomimetic Mollusk Hemolymph-Associated Biomineralization Ex-Vivo

Marine Drugs, 2020
Structure-based tissue engineering requires large-scale 3D cell/tissue manufacture technologies, to produce biologically active scaffolds. Special attention is currently paid to naturally pre-designed scaffolds found in skeletons of marine sponges, which
Marcin Wysokowski, Tomasz Machałowski, Iaroslav Petrenko, Christian Schimpf, David Rafaja, Roberta Galli, Jerzy Ziętek, Snežana Pantović, Alona Voronkina, Valentine Kovalchuk, Viatcheslav N. Ivanenko, Bert W. Hoeksema, Cristina Diaz, Yuliya Khrunyk, Allison L. Stelling, Marco Giovine, Teofil Jesionowski, Hermann Ehrlich   +17 more
doaj   +1 more source

Alkaliphilic Bacillus species show potential application in concrete crack repair by virtue of rapid spore production and germination then extracellular calcite formation

Journal of Applied Microbiology, 2017
Characterization of alkaliphilic Bacillus species for spore production and germination and calcite formation as a prelude to investigate their potential in microcrack remediation in concrete.
Trupti Sharma, Mohamed Alazhari, A. Heath, K. Paine, R. Cooper   +4 more
semanticscholar   +1 more source

Formation and structure of calcium carbonate thin films and nanofibers precipitated in the presence of poly(allylamine hydrochloride) and magnesium ions [PDF]

, 2013
That the cationic polyelectrolyte poly(allylamine hydrochloride) (PAH) exerts a significant influence on CaCO₃ precipitation challenges the idea that only anionic additives have this effect. Here, we show that in common with anionic polyelectrolytes such
Cantaert, Bram, Kim, Yi Yeoun, Kröger, Roland, Ludwig, Henning, Meldrum, Fiona C., Paunov, Vesselin N., Verch, Andreas   +6 more
core   +2 more sources

Experimental Observation of a Calcium Silicon Double Carbonate

Angewandte Chemie, EarlyView.
High‐pressure and ‐temperature reactions between Ca5(Si2O7)(CO3)2 tilleyite and CO2 carbon dioxide yield the first experimental evidence of the double carbonate Ca2Si(CO3)4 and a new Ca2(C4O10) phase containing tetrahedral [CO4] units. These findings reveal unexpected carbonate chemistry and highlight pathways for carbon incorporation under mantle ...
Benedito Donizeti Botan‐Neto, David Santamaria‐Perez, Julia Bungarten, Lkhamsuren Bayarjargal, Björn Winkler, Alberto Otero‐de‐la‐Roza, Bihan Wang   +6 more
wiley   +2 more sources

Effects of salinity, organic acids and alkalinity on the growth of calcite spherulites: Implications for evaporitic lacustrine sedimentation

The Depositional Record, 2022
Lacustrine non‐skeletal carbonates exhibit a diversity of petrographies due to interactions between physico‐chemical and biologically influenced mechanisms. Despite the suggestion that evaporative concentration was involved in the formation of spherulite
Ramon Mercedes‐Martín, Ashit Rao, Mike Rogerson, Mónica Sánchez‐Román   +3 more
doaj   +1 more source

On the quantitative thermogravimetric analysis of calcite content in hydrated cementitious systems [PDF]

, 2017
Calcite is a compound that is present in hydrated cementitious materials when carbonation of portlandite occurs or when limestone constituents are used.
De Belie, Nele, De Buysser, Klaartje, Eguez Alava, Hugo, Villagran Zaccardi, Yury   +3 more
core   +1 more source

Marine bivalve geochemistry and shell ultrastructure from modern low pH environments [PDF]

, 2011
. Bivalve shells can provide excellent archives of past environmental change but have not been used to interpret ocean acidification events. We investigated carbon, oxygen and trace element records from different shell layers in the mussels Mytilus ...
Baggini, C, Buhl, D, Fehr, KT, Griesshaber, E, Hahn, S, Hall-Spencer, JM, Immenhauser, A, Rodolfo-Metalpa, R, Schmahl, WW   +8 more
core   +2 more sources

Cool Kitchen: Processing Starch and Eggshell Powder into Sustainable Coatings for Passive Daytime Cooling

Advanced Functional Materials, EarlyView.
A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song, Evelyn Kubacki, Alexander Berger, Markus Retsch   +3 more
wiley   +1 more source