نتایج جستجو برای: ni8tio2zeolite nax

تعداد نتایج: 228  

Journal: :Ecology and Society 2021

Baur, I., and H. Nax. 2021. Measures against the abandonment of common property summer pastures: experimental evidence from joint appropriation–provision games. Ecology Society 26(2):4. https://doi.org/10.5751/ES-12140-260204

2016
Willias Masocha

Paclitaxel, a chemotherapeutic agent, causes neuropathic pain whose supraspinal pathophysiology is not fully understood. Dysregulation of sodium channel expression, studied mainly in the periphery and spinal cord level, contributes to the pathogenesis of neuropathic pain. We examined gene expression of sodium channel (Nav) subunits by real time polymerase chain reaction (PCR) in the anterior ci...

Silicon and aluminum sources are most important reactants in the synthesis of zeolite. The use of the silicon source has an important effect on the crystallization of zeolites. Also, it can change the properties of the end product. This work reports the influence of three common commercial silica sources such as colloidal silica (Ludox AM-30), fumed silica and water glass on the crystallinity o...

Journal: :Solid state nuclear magnetic resonance 1996
M Feuerstein M Hunger G Engelhardt J P Amoureux

23Na MAS, 2D nutation MAS, and DOR NMR spectroscopy has been applied to characterise the location of sodium cations in dehydrated zeolite NaX (Si/Al = 1.23). The 23Na MAS NMR spectra recorded at three different magnetic field strengths were decomposed by computer simulation into five lines, which were attributed to five crystallographically distinct cation sites known from X-ray diffraction stu...

ژورنال: مواد پرانرژی 2014

Liquid fuel dimethyl aminoethyl azide (DMAZ) has been attended by many researchers as a new green fuel in recent years. Ssynthesis of the fuel has led to a process contains dehydration of DMAZ as a highlighted section. In this study, dehydration of DMAZ/water solution has been investigated by using four different zeolite membranes as HSOD, NaA, LTT and NaX that cover different pore sizes. Many ...

2003
M. A. S. D. Barros A. S. Zola P. A. Arroyo E. F. Sousa - Aguiar C. R. G. Tavares

The ion exchange of Na for Cr/K, Cr/Mg and Cr/Ca in Y and X zeolites was studied using breakthrough curves. It was observed that Cr ions were able to remove some competitive ions that had already been exchanged at the zeolitic sites, producing a sequential ion exchange. Some mass transfer parameters such as length of unused bed, overall mass transfer coefficient, operational ratio and dimension...

2004
Harikrishnan Ramanan Scott M. Auerbach Michael Tsapatsis

In the preceding companion article, we reported high-temperature molecular dynamics (MD) simulations to trace single-molecule as well as collective mean square displacements over a range of temperatures (6001500 K) and loadings (infinite dilution to four benzenes per supercage) to evaluate respectively the selfdiffusivities and cooperative (alternatively Maxwell-Stefan) diffusivities of benzene...

Journal: :IEEE Engineering Management Review 2017

2015
A. E. O. Lima V. A. M. Gomes S. M. P. Lucena

Many efforts have been made to develop amine-based solid adsorbents for capture of CO2 by adsorption. Compared with the traditional process of absorption in aqueous solutions of amines, the adsorbents with amine immobilized in solids generally result in processes with lower capital and energy costs. The literature contains some experimental studies of CO2 adsorption in impregnated materials; ho...

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