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Preparation and characterization of spherical yttrium iron garnet via coprecipitation
(2001-12-01)
The purpose of this work is to obtain spherical particles yttrium iron garnet (YIG) by coprecipitation technique. The spherical particles were obtained from either nitrate or chloride salt solutions by controlling the ...
Effect of Nitrogen Sources on Photosynthesis and Biosynthesis of Alkaloids and Leaf Volatile Compounds in Annona sylvatica A. St.-Hil
(2022-01-01)
Nitrogen (N) has been reported to act on both primary and specialized metabolism of plants. However, it is not clear how different N sources affect metabolism in species of the genus Annona. Thus, the aim of the work was ...
Synthesis, analysis, cholinesterase-inhibiting activity and molecular modelling studies of 3-(dialkylamino)-2-hydroxypropyl 4-[(alkoxy-carbonyl)amino]benzoates and their quaternary ammonium salts
(Molecular Diversity Preservation International, 2017-12)
Tertiary amines 3-(dialkylamino)-2-hydroxypropyl 4-[(alkoxycarbonyl)amino]benzoates and their quaternary ammonium salts were synthesized. The final step of synthesis of quaternary ammonium salts was carried out by ...
Removal of ammonium via simultaneous nitrification-denitrification nitrite-shortcut in a single packed-bed batch reactor
(ELSEVIER SCI LTD, 2009)
A polyurethane packed-bed-biofilm sequential batch reactor was fed with synthetic substrate simulating the composition of UASB reactor effluents. Two distinct ammonia nitrogen concentrations (125 and 250 mg l(-1)) were ...
Optimization of biodiesel production process using sunflower oil and tetramethyl ammonium hydroxide as catalyst
(Elsevier, 2013-11)
In this work, the biodiesel production process by transesterification of sunflower oil was investigated using tetramethyl ammonium hydroxide (TMAH) as catalyst. The reaction conditions, such as catalyst concentration, ...
Influence of mineralizer agents on the growth of crystalline CeO 2 nanospheres by the microwave-hydrothermal method
(2013-02-15)
Cystalline ceria (CeO2) nanoparticles have been synthesized by a simple and fast microwave-assisted hydrothermal (MAH) under NaOH, KOH, and NH4OH mineralizers added to a cerium ammonium nitrate aqueous solution. The products ...
Influence of mineralizer agents on the growth of crystalline CeO 2 nanospheres by the microwave-hydrothermal method
(2013-02-15)
Cystalline ceria (CeO2) nanoparticles have been synthesized by a simple and fast microwave-assisted hydrothermal (MAH) under NaOH, KOH, and NH4OH mineralizers added to a cerium ammonium nitrate aqueous solution. The products ...