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In situ chitosan gelation initiated by atmospheric plasma treatment
(Elsevier Ltd., 2014)
This work reports on the feasibility of atmospheric dielectric barrier discharge (DBD) plasma as a novel synthetic pathway for the liquid phase gelation of chitosan. The DBD plasma chitosan gelation process did not ...
Optimization of microwave-assisted extraction of natural antioxidants from spent espresso coffee grounds by response surface methodology
(Elsevier Sci Ltd, Oxford, 2014)
Espresso spent coffee grounds (SCG) that is a waste material abundantly produced by restaurants, cafeterias and in domestic environment could be used as a low-cost and rich source of valuable polyphenol compounds. The ...
Effect of the orientation of the initially formed grains on the final morphology of electrodeposited lead
(Serbian Chemical Society, 2014)
The processes of Pb electrodeposition under diffusion control were examined by scanning electron microscopy (SEM) of the formed crystals. The orientation of grains of hexagonal shape formed in the initial stage of ...
Chitosan microbeads for encapsulation of thyme (Thymus serpyllum L.) polyphenols
(Elsevier Sci Ltd, Oxford, 2014)
In this work chitosan microbeads were prepared by emulsion technique and loaded with thyme polyphenols by diffusion from an external aqueous solution of Thymus serpyllum L. The effects of concentrations of chitosan (1.5-3% ...
Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport
(Elsevier Science Sa, Lausanne, 2014)
Carbonized hemp fibers obtained by carbonization of origin and chemically modified waste hemp fibers was used as a low-cost sorbent for heavy metals removal. The efficiency of carbonized hemp fiber samples as a sorbent was ...
Synthesis of α-Al2O3 based foams with improved properties as catalyst carriers
(Institute of Metals and Technology, 2014)
This paper explores the possibility of synthesising catalyst supports with improved properties. Alumina foams were produced with the polymer replication technique. Representative high- and low-temperature sintering ceramics ...
Optimization of the recycling processes for magnesium from a highly contaminated waste
(Institute of Metals and Technology, 2014)
With the recently increased use of magnesium alloys, especially in the automotive industry, a large quantity of generated waste, based on magnesium alloys, is expected. Such a waste often contains many impurities such as ...
Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mössbauer spectroscopy
(Elsevier B.V., 2014)
A composite powder Li2FeSiO4/C is synthesized through a solid state reaction at 750 °C. The Rietveld crystal structure refinement is done in the monoclinic P21/n space group. It is found that the crystal structure is prone ...
Influence of an accumulative roll bonding (ARB) process on the properties of AA5083 Al-Mg alloy sheets
(Association of Metallurgical Engineers of Serbia AMES, 2014)
In this study, fully annealed AA5083 type alloy sheets with 1 mm in thickness
were processed by accumulative roll bonding (ARB) at room temperature, up to 6 ARB
cycles. It was found that microstructure was refined and ...
Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mössbauer spectroscopy
(Elsevier B.V., 2014)
A composite powder Li2FeSiO4/C is synthesized through a solid state reaction at 750 °C. The Rietveld crystal structure refinement is done in the monoclinic P21/n space group. It is found that the crystal structure is prone ...