Results 31 to 40 of about 8,605 (221)
Nature Physical Science, 1971 IN a recent communication, Rowlands and Webster1 pointed out that the occurrence of vaterite in nature is extremely rare compared with other forms of calcium carbonate, for example, calcite and aragonite. I wish to report some additional relevant information.
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Optical microrheology using rotating laser-trapped particles [PDF]
, 2004 We demonstrate an optical system that can apply and accurately measure the torque exerted by the trapping beam on a rotating birefringent probe particle. This allows the viscosity and surface effects within liquid media to be measured quantitatively on a
A. T. O’Neil +13 more
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Independent polarisation control of multiple optical traps [PDF]
, 2008 We present a system which uses a single spatial light modulator to control the spin angular momentum of multiple optical traps. These traps may be independently controlled both in terms of spatial location and in terms of their spin angular momentum ...
Allen +30 more
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Royal Society Open Science, 2023 Sagittal otoliths, typically composed of aragonite, are frequently laid down rather as vaterite during growth in hatchery-reared fish populations. Sagittal vateritization is believed to impair individual hearing/balancing abilities, but the causal ...
Iki Murase +3 more
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Rheological properties of calcium carbonate self-setting injectable paste [PDF]
, 2010 With the development of minimally invasive surgical techniques, there is growing interest in the research and development of injectable biomaterials with controlled rheological properties.
Auzély-Velty, Rachel +7 more
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Accelerated and natural carbonation of concrete with high volumes of fly ash : chemical, mineralogical and microstructural effects [PDF]
, 2019 Today, a rather poor carbonation resistance is being reported for high-volume fly ash (HVFA) binder systems. This conclusion is usually drawn from accelerated carbonation experiments conducted at CO2 levels that highly exceed the natural atmospheric CO2 ...
De Belie, Nele +2 more
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Monodisperse and Nanometric-Sized Calcium Carbonate Particles Synthesis Optimization
Nanomaterials, 2022 Calcium carbonate (CaCO3) particles represent an appealing choice as a drug delivery system due to their biocompatibility, biodegradability, simplicity and cost-effectiveness of manufacturing, and stimulus-responsiveness.
Francesca Persano +4 more
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Confinement stabilises single crystal vaterite rods
Chem. Commun., 2014 Single-crystals of vaterite, the least-stable anhydrous polymorph of CaCO3, are rare in biogenic and synthetic systems. We here describe the synthesis of high aspect ratio single crystal vaterite rods under additive-free conditions by precipitating CaCO3 within the cylindrical pores of track-etch membranes.
Schenk, AS +4 more
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Agronomy, 2022 Plant biostimulants represent an innovative and sustainable solution to address the challenges of the future agriculture, especially when they are used to improve yield and quality of staple crops.
Fakir Mathlouthi +3 more
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Calcium silicates synthesised from industrial residues with the ability for CO2 sequestration [PDF]
, 2014 This work explored several synthesis routes to obtain calcium silicates from different calcium-rich and silica-rich industrial residues. Larnite, wollastonite and calcium silicate chloride were successfully synthesised with moderate heat treatments below
Esquivias Fedriani, Luis María +4 more
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