Zobrazeno 1 - 10
of 55
pro vyhledávání: '"V. Gottardi"'
B-lymphocyte stimulator (BLyS) acts as survival factor for B lymphocytes. As Hodgkin and Reed-Sternberg (HRS) cells express receptors through which BLyS promotes their growth and chemotherapy resistance, we investgated whether this molecule was incre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2127::01cb05751e5153b01bb31b8f8f7a787e
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3113102
https://pergamos.lib.uoa.gr/uoa/dl/object/uoadl:3113102
Publikováno v:
Journal of Non-Crystalline Solids. 34:371-380
An interpretation is offered for the increased chemical resistance of glass surfaces upon treatment with SiF4/H2O gaseous mixtures. Scanning electron microscopy examinations of the morphology and evolution of the surface structure, the surface sodium
Autor:
V. Gottardi
Publikováno v:
Journal of Non-Crystalline Solids. 49:461-469
Glasses with the same chemical composition may have quite different structures and physical properties. This concept is illustrated with examples. Glasses formed from gels are compared with glasses of the same composition formed from melts to demonst
Publikováno v:
Journal of Non-Crystalline Solids. 82:356-365
E-glass fibres were coated with SiO2 and 80% SiO2-20% ZrO2 thin films by the sol-gel method to verify the possibility of protecting them from the alkaline attack of cement. Mechanical and chemical tests were performed on coated and uncoated fibres in
Publikováno v:
Journal of Non-Crystalline Solids. 29:41-48
A multicomponent glass was obtained on using the new method of glass preparation from gel. The reactions occurring in the ethanolic solution of the parent alkoxides give condensation of the monomers so that hydrolysis of the remaining alkoxides group
Publikováno v:
Journal of Non-Crystalline Solids. 80:481-486
Ultrathin blown glasses, owing to the very high cooling rate, have an open structure, characterized by lower hardness and higher deformability, and no tempering residual stresses. In these glasses, due to their high densificability, the threshold loa
Publikováno v:
Journal of Non-Crystalline Solids. 63:273-281
The surface area thermal stability of SiO2/Al2O3/Na2O supports prepared from alkoxides was studied as a function of time and temperature. The results indicate substantial stability in time at temperatures ⩽ 250°C, whereas a progressive fall in por
Publikováno v:
Journal of Non-Crystalline Solids. 43:105-114
The material of chemical composition 1% Na2O, 28% Cr2O3, 28% Al2O3, 15% SiO2 and 28% ZrO2 was obtained by the gel route; this product is usually prepared by electrocasting and it is a well recognized refractory. The starting species dissolved in meth
Publikováno v:
Journal of Non-Crystalline Solids. 48:219-226
Pd metal has been supported on vitreous materials prepared by the gel route. Three supports with different chemical compositions of the SiO2, Al2O3 and Na2O systems were prepared; the corresponding catalysts, performed with very similar degrees of me
A structural study of metastable tetragonal zirconia in an Al2O3-ZrO2-SiO2-Na2O glass ceramic system
Publikováno v:
Journal of Materials Science. 15:2693-2700
The structural and microstructural properties (crystalline system at the beginning of crystallization, lattice disorder and crystallite size) of metastable zirconia have been studied by an X-ray line broadening analysis using simplified methods based