Results 51 to 60 of about 225,314 (391)

Genetic variation in eggshell crystal size and orientation is large and these traits are correlated with shell thickness and are associated with eggshell matrix protein markers [PDF]

, 2012
The size and orientation of calcium carbonate crystals influence the structure and strength of the eggshells of chickens. In this study, estimates of heritability were found to be high (0.6) for crystal size and moderate (0.3) for crystal orientation ...
Ahmed, Arias, Barrett, Chien, Dunn, Dunn, Fernandez, Francesch, Freeman, Gautron, Hall, Hamilton, Hernandez-Hernandez, Hincke, Hincke, Mann, Nys, Nys, Panheleux, Patterson, Preisinger, Rodríguez-Navarro, Rodríguez-Navarro, Rodríguez-Navarro, Rodríguez-Navarro, Rodríguez-Navarro, Tullett, Tyler, Vantoledo   +28 more
core   +1 more source

Precursor Mineral Phases of Forming Mollusk Shell Nacre: A Study of Hydrated Samples

Advanced Functional Materials, EarlyView.
Mineral, organic phase, and water are the essential components in mollusk shell nacre formation. Their interplay is not well understood, because the hydrated material is difficult to observe at high resolution, under close to native conditions. Forming nacre is studied using environmental and cryo‐electron microscopy and hydrated ACC phases, together ...
Anna Kozell, Xiao‐Meng Sui, Neta Varsano, Stephen Weiner, Lia Addadi   +4 more
wiley   +1 more source

Isotopic-geochemical features of thermal water of the Kyndyg deposit (Republic of Abkhazia)

Литосфера, 2020
Subject. The aim of the work is to study the mechanism and sources of water formation, as well as the peculiarities of carbonate mineralization in the aquifer of the Kyndyg thermal water deposit. Materials and methods.
S. S. Potapov, D. V. Kiseleva, O. Ya. Chervyatsova, N. V. Parshina, M. V. Chervyakovskaya, S. V. Karpova, N. V. Cherednichenko, R. S. Dbar   +7 more
doaj   +1 more source

APATITES FORMATION ON ELECTRODEPOSITED CALCIUM PHOSPHATES IN THE Ca(NO3)2 / NH4H2PO4 AND CаCO3 / Ca(H2PO4)2 SYSTEMS

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
Calcium phosphate coatings on titanium plates were obtained by electrochemical deposition at room temperature in a two-electrode cell at a constant current density of 30 mA/sm^2 and a deposition time of 10 min, and brushite coatings from Ca(NO3)2 ...
V.K. Krut’ko, A.E. Doroshenko, O.N. Musskaya, S.M. Rabchynski, A.I. Kulak   +4 more
doaj   +1 more source

Effect of ball milling in a tumbling ball mill on the properties of multi-wall carbon nanotubes [PDF]

, 2008
The effects of ball milling on various properties of ground multi-wall carbon nanotubes were studied. These properties were granulometry, SEM,specific surface area, density, crystalline structure, surface chemical analysis and thermogravimetry.
Le Bolay, Nadine, Zapata-Massot, Céline
core   +1 more source

The origin of carbon isotope vital effects in coccolith calcite

Nature Communications, 2017
Calcite microfossils are widely used to study climate and oceanography in Earth’s geological past. Coccoliths, readily preserved calcite plates produced by a group of single-celled surface-ocean dwelling algae called coccolithophores, have formed a ...
H. McClelland, J. Bruggeman, M. Hermoso, M. Hermoso, R. Rickaby   +4 more
semanticscholar   +1 more source

Multiple Twinning in Nacre and Aragonite

Advanced Functional Materials, EarlyView.
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt, William O. Nachlas, Bil Schneider, Xiaoming Mao, Eric Tambutté, Alexander A. Venn, Sylvie Tambutté, Pupa U. P. A. Gilbert   +7 more
wiley   +1 more source

Comparative Assessment of Shell Structural, Mechanical, and Elemental Properties in Adult Acorn Barnacles

Diversity
Balanomorph (acorn) barnacles are found throughout the world’s coastal oceans, and their success is dependent on a hard, mineralized, outer shell. Although macro-scale morphology of barnacle shells has been studied extensively, relatively little is known
Jazmine Shaw, Yeram Kang, Callie Triano, Corin J. Hoppe, Nick Aldred, Rebecca A. Metzler, Gary H. Dickinson   +6 more
doaj   +1 more source

Beneficiation of phosphate sludge rejected from Djebel Onk plant (Algeria) [PDF]

, 2019
Purpose Flotation tests have been used in order to achieve the purposes of this study which are: To obtain the highest recovery with a maximum grade of P2O5 from the tailing generated by the phosphate plant of Djebel Onk in the East of Algeria.
Benselhoub, A, Bulut, G, Chettibi, M, Nettour, D   +3 more
core   +1 more source

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

Advanced Functional Materials, EarlyView.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel, German Montes‐Hernández, Pablo Almarza‐Cifuentes, Matthias Kellermeier, Alexander E.S. Van Driessche   +4 more
wiley   +1 more source