Basing on the review of the latest literature references it can be concluded that despite diverse interests among researchers in both the theoretical and experimental aspects, the most important objective is the evaluation of the structure of water glasses solutions. It should be expected that the agreement on the unequivocal view on the molecular composition of water glasses or systems containing these substances will bring closer the explanation of the mechanism of their action in most of their applications and also will show new possibilities in this area. Presented material shows that the area of potential application of water glasses expands constantly. In the field of research on the properties and structure of silicate solutions, most authors concentrate on the issues of condensation (gelation) processes of silicic acid and its ions as a function of various parameters, such as: Mk, pH, ageing time, temperature, type and properties of the solvent (including organic solvents), influence of electrolytes - both cations and anions. Research is dominated by spectroscopic methods, such as 29SiNMR, IR, but new methods, which haven't been used before, like electrochemical and thermochemical techniques are being introduced.
2
Dostęp do pełnego tekstu na zewnętrznej witrynie WWW
W pracy przedstawiono wyniki badań związane z określaniem cech wytrzymałościowych nowych produktów zbożowych wyprodukowanych z preparowanych ziaren zbóż. Badanie cech wytrzymałościowych realizowano poprzez instrumentalny pomiar wartości siły, ocenianej jako cechę charakteryzującą „twardość” nowych produktów zbożowych.
EN
The paper presents results of investigations on the determination of strength properties of new cereal products made from prepared cereal grains. The strength properties were tested by instrumental measurement of the force value, evaluated as a feature characterizing “hardness” of new cereal products.
3
Dostęp do pełnego tekstu na zewnętrznej witrynie WWW