نتایج جستجو برای: preferential hydration
تعداد نتایج: 36765 فیلتر نتایج به سال:
In the present study, we have combined several atomic-scale computational techniques [static lattice optimization, density functional theory (DFT), canonical Monte Carlo (MC), and Gibbs ensemble MC (GEMC)] with experiment in order to describe adsorption of water potassium-exchanged X-type faujasite. Indeed, by applying DFT calculations, evidenced a strongly heterogeneous adsorbent surface class...
Due to its inherent role in ensuring food security and as one of the productive sectors of the economy, the agricultural sector has a priority in receiving preferential currency. Having a preferred currency has caused the price of this commodity in the market to be multi-valued. On the other hand, the allocation of billions of dollars at a price lower than the free market price of foreign excha...
Despite reported synergies between alumina rich supplementary cementitious materials (SCMs) and limestone, previous studies have focused on up to 5% limestone content. Slag hydration in the presence of 10% limestone is reported in this paper. Hydration was followed through chemical shrinkage, calorimetry, thermal analysis, electron microscopy and X-ray powder diffraction. The results show that ...
BACKGROUND Oligohydramnios (reduced amniotic fluid) may be responsible for malpresentation problems, umbilical cord compression, concentration of meconium in the liquor, and difficult or failed external cephalic version. Simple maternal hydration has been suggested as a way of increasing amniotic fluid volume in order to reduce some of these problems. OBJECTIVES The objective of this review w...
a r t i c l e i n f o A hydration kinetics model for Portland cement is formulated based on thermodynamics of multiphase porous media. The mechanism of cement hydration is discussed based on literature review. The model is then developed considering the effects of chemical composition and fineness of cement, water–cement ratio, curing temperature and applied pressure. The ultimate degree of hyd...
BACKGROUND Hydration to prevent contrast-induced acute kidney injury (CI-AKI) induces a diagnostic delay when performing computed tomography-pulmonary angiography (CTPA) in patients suspected of having acute pulmonary embolism. AIM To analyze whether withholding hydration is non-inferior to sodium bicarbonate hydration before CTPA in patients with chronic kidney disease (CKD). METHODS We pe...
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