Calcium carbonate
Influencia de la adición de carbono de calcio en la eficiencia energética de la producción de ladrillo de cerámica roja = The influence of the adidition of calcium carbonate on the energy efficiency of fired clay bricks manufacture
... The results of a study that assesses the effect of adding small amounts of calcium carbonate as fluxing agent on fired Clay bricks are presented. The paper aims to improve the energy demand of fire clay ...
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Calcium carbonate decomposition in white body tiles during firing in the presence of carbon dioxide
... During the first stretch of the process, in which the overall process rate was controlled by the rate of the chemical reaction step, the proposed equation only fitted well to the experimental data when it was assumed ...
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Encapsulation of precipitated calcium carbonate fillers using carboxymethyl cellulose /polyaluminium chloride: preparation and its influence on mechanical and optical properties of paper
... Inorganic fillers are usually used in papermaking industry to reduce production costs and enhance paper optical properties. As an attempt to improve fillers application in papermaking, carboxymethyl cellulose (CMC) and ...
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Influence of concrete chemical admixtures on self healing based on microbial and not microbial calcium carbonate precipitation
... Calcium carbonate precipitation can be enhanced by modification of key parameters of the mixture (see section 1.3). Several authors used bacteria to enhance this capacity, it is necessary to protect the ...
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Producción potencial de carbonato de calcio por Porites panamensis en dos comunidades arrecifales del Pacífico mexicanoPotential production of calcium carbonate by Porites panamensis in two Mexican Pacific reef communities.
... de Cabo Pulmo presenta un mayor crecimiento que Islas Marietas, debido que el morfotipo es masivo, mientras que en IM es incrustante. 2) La densidad esqueletal fue diferente entre arrec[r] ...
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Influencia de la finura de molido del carbonato de calcio en las propiedades físico mecánicas y de durabilidad de los ladrillos de cerámica roja Influcence of grinding fineness of calcium carbonate on physic chemical properties and durability on red ceramic bricks
... Resumen El trabajo hace un estudio de la influencia de la finura de molido del carbonato de calcio en las propiedades de Resistencia a la compresión, densidad, absorción y durabilidad de[r] ...
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16611925
... (Fig. 5). Basically, three factors determine the highest concentrations obtained in this station: (1) the pre- cipitation of calcium carbonate into estuaries, related to salinity (Jonge and Villerius, 1989; ...
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Effects of dietary calcium on growth and oviposition of the African land snail Limicolaria flammea (Pulmonata: Achatinidae)
... Growth experiment: Immediately after hatching, 188 hatchlings of L. flammea from five egg clutches were weighed using a Mettler AE100 balance (correct to 0.1 mg) and the shell length of each was measured using a ver- ...
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Modelación numérica en ingeniería civil aplicada a - cargas dinámicas de pavimentos visco-elásticos, y modelación del proceso de bio-grouth en suelos
... of calcium car- bonate on soils. The calcium carbonate is a constructed solid substance by bacteria in a process call microbial induced carbonate precipitation ...and calcium chloride ...
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Calcium homeostasis and bone mass during pregnancy and lactation in adult and adolescent women
... maintaining calcium homeostasis during these periods are adapted to en- sure an adequate fetal skeletal formation and milk ...in calcium homeostasis during preg- nancy and lactation in adolescent ...
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K Ca Channels as Therapeutic Targets in Episodic Ataxia Type 2
... P/Q-type calcium channels that are affected in EA2 are highly expressed throughout the CNS (Evans and Zamponi, 2006) and are particularly enriched in axon terminals and in cerebellar Pur- kinje cells (Mori et ...
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Alpha hemolysin induces an increase of erythrocytes calcium: a FLIM 2-photon phasor analysis approach
... Alpha hemolysin from Escherichia coli (HlyA) is generally considered the prototype of a large family of pore-forming toxins, named RTX, which are produced by gram-negative pathogens [1], [2]. In addition to their direct ...
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Understanding the Human Machine – A Primer for Bioengineering – Max E. Valentinuzzi
... In turn, blood calcium (dashed-dotted arrows) acts as input to the thyroid and parathyroid gland, the latter de- creasing its PTH production when blood calcium level increase (hence, t[r] ...
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Arsenic inertization through alunite-type phases: Application to copper pyrometallurgy
... Arsenical-natroalunites were generated from pyrometallurgical copper wastes as calcium arsenate and flash smelting dust. This procedure resolves the pro- duction of intermediate arsenical gypsum, because gypsum is ...
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Calcium dynamics in catecholamine containing secretory vesicles
... the same probe in MIN6  -cells (around 50 M, see ref [8]) and confirm that secretory granules are the organelle with the largest bound/free Ca 2+ relationship. Estimations for the total calcium content of ...
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Efecto de la administracin de sales de calcio y precursores de glucosa sobre calcio srico y cuerpos cetnicos en vacas lecheras posparto
... of calcium salts and glucose precursors on the concentration of serum calcium and ketone bodies in milk of multiparous dairy ...of calcium propionate diluted in 10 L of water by a esopha- geal pump ...
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Iron additions revert seagrass (Posidonia oceanica) decline in carbonate sediments
... 15 We conducted a 2-year in situ experiment to test 16 the capacity of iron additions to reverse the decline 17 experienced by a Posidonia oceanica meadow colo- 18 nizing carbonate, iron poor sediment. Iron addi- ...
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mundo.pdf
... We We all all know know that that the the calcium calcium in in milk milk helps helps build build strong strong bones bones , , but but milk milk is is. loaded[r] ...
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Calcium and camp directly modulate the speed of the Drosophila circadian clock
... between calcium and cAMP levels and clock function using the simpler, non-neuronal, peripheral clock housed within the PG endocrine ...in calcium and cAMP levels during the course of the day, which ...
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