Results 81 to 90 of about 78,343 (295)

Electrochemical and biomimetic deposition of calcium phosphates on titanium alloys

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
The presence of impurities of other metals in titanium alloys affects the composition of the oxide film after heat treatment: in addition to rutile, the VT 00 alloy contains Ti6O oxide, which in the VT 1-0 and VT 6 alloys is transformed into Ti3O oxide ...
A.E. Doroshenko, V.K. Krut’ko, O.N. Musskaya, A.I. Kulak   +3 more
doaj   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

U-Pb dating of calcite in ancient carbonates for age estimates of syn- to post-depositional processes: a case study from the upper Ediacaran strata of Finnmark, Arctic Norway [PDF]

, 2020
Results of in situ U-Pb dating of calcite spherulites, cone-in-cone (CIC) calcite and calcite fibres from a calcareous concretion of the upper Ediacaran of Finnmark, Arctic Norway, are reported.

core   +1 more source

Orthodentine‐osteodentine and osteocytic‐anosteocytic transition inferred from Silurian stem chondrichthyan dermal jawbones with ever‐white teeth overgrown by brown denticles

Developmental Dynamics, EarlyView.
Abstract Background The dentigerous jawbones of a 423‐million‐year‐old stem chondrichthyan (ischnacanthid acanthodian) carry a characteristic combination of multi‐row non‐shedding white teeth with brownish overgrowing denticles. The color distinction makes it a good model for observing the interaction between two odontode lineages, but the nature of ...
Jia‐Cih Kang, Henning Blom, Tiiu Märss, Donglei Chen   +3 more
wiley   +1 more source

Crystallography of calcite in pearls

, 2014
Mineralization in pearls is used as a 'study model' to understand basic mechanisms of calcium carbonate biomineralization. In addition to nacre formation, vaterite and calcite can be found in pearls, with the occurrence of calcite being the least studied.
Dauphin, Yannicke, Pérez-Huerta, A., Cuif, J.P., Cusack, M., Dauphin, Y., Cuif, J.-P.   +5 more
core   +1 more source

Eggshell powder as a calcium source in Premna microphylla Turcz. polysaccharide–mung bean starch gels: Toward dysphagia‐friendly food boluses

Food Biomacromolecules, EarlyView.
Eggshell powder strengthens Premna microphylla Turcz. polysaccharide–mung bean starch gels through noncovalent interactions, producing calcium‐fortified dysphagia food boluses with tunable texture and International Dysphagia Diet Standardization Initiative Level 6–7 suitability.
Weidong Zhang, Liyuan Rong, Weiqi Fei, Jiaruo Hu, Huiliang Wen, Jianhua Xie   +5 more
wiley   +1 more source

Flotation Separation of Cassiterite from Calcite Using Low-Molecular-Weight Citrus Pectin as Depressant

Separations
This paper presents the development of an environmentally friendly, small molecular depressant citrus pectin for improving the recovery of cassiterite resources. Citrus pectin extracted from citrus peel was utilized as the depressant, and it demonstrated
Chenyang Yao, Yachao Li, Peng Li, Xiaokui Che, Guosheng Li, Fanfan Zhang, Weijun Peng, Bozeng Wu, Guixia Fan   +8 more
doaj   +1 more source

Marine Macroalgae as a Safe Healthy Food While Meeting Food Security Challenges Arising From Climate Changes

Food Safety and Health, EarlyView.
Planned harvesting and processing of marine macroalgae could meet future global food needs and mitigate fuel‐originated carbon dioxide responsible for climate change. Microalgal foods are nutritious and safe. The utilization of macroalgae would avoid environmental problems arising from the release of overgrowing macroalgae caused by heatwaves, which ...
Upali Samarajeewa
wiley   +1 more source

Effect of Grain Size and Mineral Mixing on Carbonate Absorption Features in the SWIR and TIR Wavelength Regions

Remote Sensing, 2012
Reflectance spectra of carbonate minerals in the shortwave infrared (SWIR) and thermal infrared (TIR) wavelength regions contain a number of diagnostic absorption features.
Nasrullah Zaini, Harald van der Werff, Freek van der Meer   +2 more
doaj   +1 more source

Apolar Behavior of Hydrated Calcite (10{-1}4) Surface Assists in Naphthenic Acid Adsorption [PDF]

, 2019
Water molecules bind strongly to the polar calcite surface and form a surface adsorbed layer that has properties akin to an apolar surface. This has important implications for understanding the thermodynamic driving forces underlying the adsorption of ...
Arjun, Valiya Parambathu, Dilip, Asthagiri, Le, Wang, Walter, Chapman   +3 more
core   +1 more source