Low temperature method for synthesis of MgNb2O6 and its characterization

There are various methods for synthesizing luminescent semi-conductor nano-particles.  A sample at chemical root of low temperature method was used to synthesize the magnesium niobate (MgNb2O6) nano-particles by using Niobium pentaoxide (Nb2O5), Magnesium nitrate, Ammonium carbonate were used.  All chemicals was taken A.R. Grade (99.99%).  Ammonium carbonate and Ammonium hydroxide was used to precipitate magnesium carbonate as Mg2+ cation and Niobium hydroxide as a Nb5+ cations under basic conditions.  This precipitate was heating at 800°C it produced MgNb2O6 fine powders.  The lattice parameters were studied by least square method and obtained a = 5.687 A°, b = 13.975 A° and C = 4.938 A°.  The average particle size of MgNb2O6 were studied by Scaning Electron Microscope (SEM) and found to be 45 nm.  The crystallite size calculated from Scherrer's formula

On the categories of L-Valued and Q-Valued 6 deterministic fuzzy automata

Automata and languages have been studied in the context of different lattice structures by several authors. This paper is toward the categorical study of deterministic lattice-valued (L-valued) fuzzy automata and deterministic quantale-valued (Q-valued) fuzzy automata. The existence of initial and final objects in the subcategory of category of deterministic lattice-valued fuzzy automata is shown. We also show that there is an adjunction between the category of deterministic lattice-valued and quantale-valued fuzzy automata