Zeolite Phi is synthesized by two methods reported previously. Results from X-ray powder diffraction and scanning electron microscopy suggest that t h e materials are physical mixtures of chabazite and offretite; one sample has a small amount of phillipsite. The X-ray powder diffraction data from these samples, and those reported previously, are indexed and their unit-cell parameters compare we...

Over the vast Northwest China, arid desert contains high concentrations of sulfate, chloride, and other chemicals in the ground water, which poses serious challenges to infrastructure construction that routinely utilizes portland cement concrete. Rapid industrialization in the region has been generating huge amounts of mineral admixtures, such as fly ash and slags from energy and metallurgical ...

A review concerning pervaporation and vapor permeation membrane separation techniques used to separate liquid mixtures, is presented. Examples of polymers for membrane preparation as well as performance parameters of pervaporation and vapor permeation membranes are described. The second part of the paper presents applications of pervaporation and vapor permeation in environmental protection. At...

A Mycoplasma-associated immunosuppression of the primary and secondary hemagglutinin response to a common gram-negative antigen of Escherichia coli (014) was demonstrated in the rabbit when preincubated mixtures of common gram-negative antigen and Mycoplasma arthritidis membranes were injected intravenously. A similar immunosuppression was demonstrated only for the secondary hemagglutinin respo...

The identification of membrane materials with high selectivity for CO(2)/CH(4) mixtures could revolutionize this industrially important separation. We predict using computational methods that a metal organic framework (MOF), Cu(hfipbb)(H(2)hfipbb)(0.5), has unprecedented selectivity for membrane-based separation of CO(2)/CH(4) mixtures. Our calculations combine molecular dynamics, transition st...

The Swept Wavelength Optical Resonant Raman Detector (SWOrRD) at the Naval Research Laboratory is scanned through the 220 nm to 260 nm window of the ultraviolet and generates two dimensional spectral maps allowing for rapid identification of chemical materials. We create a library of chemicals whose Raman spectral features partially overlap and then measure the mixtures created by combinations ...

In previous literature, multi-criteria decision-making (MCDM) methods and life cycle assessment (LCA) methods, integrating different properties, have been applied to cementitious materials separately. This study addresses the existing gap in research by comparing LCA with durability parameters integrated MCDM concrete mixtures. The aim is assess differences between these two approaches when ass...

The data presented in this article include the molar masses, melting temperatures, latent heats of fusion and temperature-dependent heat capacities of fifteen fatty acid phase change materials (PCMs). The data are used in conjunction with the thermodynamic models discussed in Kahwaji and White (2018) [1] to develop a computational tool that calculates the eutectic compositions and thermal prope...