نتایج جستجو برای: solid bases
تعداد نتایج: 255442 فیلتر نتایج به سال:
A dual-timescale model of stressed solid-phase epitaxial growth is developed to provide a basis for the atomistic interpretation of experiments where the macroscopic growth velocity of (0 0 1) Si was studied as a function of uniaxial stress applied in the plane of the growth interface. The model builds upon prior empirical modeling, but is a significant improvement as it provides solid physical...
During surface Fadlelmawla', K.J. Reddf, and G.F. Vance3 coal mining, rock material overlying the coal is redistsibuted with respect to its original stratigraphic position. Oxidation of the redistributed backfill material may release dissolved selenium (Se) to groundwater in backfill systems. This study was initiated to examine the chemistry of Se in the groundwater backfill environment. Both b...
We report a case of primary intestinal infection due to filamentous fungi in an adolescent with Ewing sarcoma. The clinical picture was that of peritonitis secondary to intestinal perforation and the diagnosis was established only on histopathological bases. This condition is very rare, and only one case of primary intestinal mold infection in children with solid tumors has been reported in the...
Silica-bonded n-propyltriethylene-tetramine (SBNPTT) was found as an efficient solid base for the synthesis of 2-amino-5-oxo-5,6,7,8-tetrahydro-4H-chromenes. Chromene derivatives were obtained via the three-component condensation reaction of aromatic aldehydes, malononitrile, and dimedone at 80 oC under solvent-free conditions. The heterogeneous solid base showed much the same efficiency when u...
In the solid state, due to Te⋅⋅⋅Te interactions, diaryl ditellurides are facing each other, like these “solid/frozen” Scottish cows in winter. Once molecules “defrosted” solution, new interactions occur with soluble Lewis bases, including some solvents. More information can be found Research Article by Patrick Pale, V. Mamane and co-workers (DOI: 10.1002/chem.202200395).
Gasification of solid waste for energy has significant potential given an abundant feed supply and strong policy drivers. Nonetheless, significant ambiguities in the knowledge base are apparent. Consequently this study investigates sulphur mechanisms within a novel two stage fluid bed-plasma gasification process. This paper includes a detailed review of gasification and plasma fundamentals in r...
The antifungal and antibacterial investigations were carried out of some Schiff bases obtained by condensation of di-methyl amino benzaldehyde and fluoro, bromo, nitro, methyl, methoxy and ethoxy substituted anilenes. The aforementioned studies were also carried out after complexing the above compounds with certain metals Co, Ni, Rh, Os, Pt. The results reveal that some of the compounds show si...
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