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Prikaz rezultata 21-30 od 147
Preparation and characterization of pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid
(Wiley-Blackwell, Hoboken, 2011)
Novel pH-sensitive hydrogels based on chitosan, itaconic acid and methacrylic acid were prepared in two steps. Chitosan was first ionically crosslinked with itaconic acid, after which a free radical polymerization and ...
Thermal degradation of coordination polymer [Cd(N-Boc-gly)(2)(H2O)(2)](n)
(Elsevier Science Bv, Amsterdam, 2011)
Multi-step thermal degradation of coordination polymer [Cd(N-Boc-gly)(2)(H2O)(2)](n) in non-isothermal conditions was studied. The kinetic parameters were determined from the thermal decomposition data using the isoconversion ...
Thermal properties of poly(urethane-ester-siloxane)s based on hyperbranched polyester
(Maik Nauka/Interperiodica/Springer, New York, 2011)
Novel polyurethanes (PUs) were synthesized using hydroxy-terminated hyperbranched polyester (BH-20) and 4,4'-methylenediphenyl diisocyanate (MDI) as hard segments and hydroxy-terminated ethylene oxide-poly(dimethylsiloxa ...
Thermal stability of porcine pepsin influenced by Al(III) ion: DSC study
(Pleiades Publishing, 2011)
Differential scanning calorimetry (DCS) has been used to determine thermodynamic profile of pepsin and the in vitro effect of Al(III) ions. Thermograms of pepsin unfolding in the presence and absence of aluminum were used ...
Simple and cost-effective measures for the improvement of paper mill effluent treatment - A case study
(Journal of Cleaner Production, 2011)
In this study, the performance and the efficiency of physico-chemical effluent treatment in a paper mill was investigated, with the aim of evaluating the treatment rationality and running stability. The effluent treatment ...
Technological possibilities and justification of electro-contact rapairing
(Technics Technologies Education Management, 2011)
This paper presents a selected repair technology for different types of electro-contacts by replacing the contact plates on the brass body of the electro-contacts and connecting the elements by process of brazing with ...
Health Risk Assessment Via The Consumption Of Mussels (Mytilus Galloprovincialis) From The Boka Kotorska Bay, Montenegro / Procena zdravstvenog rizika putem konzumiranja dagnje (mytilus galloprovincialis) iz Bokokotorskog zaliva, Crna Gora
(Belgrade : Faculty of Agriculture, 2011)
Sa povećanjem korišćenja morskih plodova u ishrani u poslednjih nekoliko godina,
školjke su postale komercijalno važna vrsta u svetu. Zahvaljujući sadržaju proteina,
kalcijuma i gvožđa, vitamina, omega-3 masnih kiselina, ...
Cu(II) sorption on natural clinoptilolite: experiments and kinetics modeling
(Editorial Universitat Politècnica de València, 2011)
The ways to improve the economy of bioethanol production in Serbia
(24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2011, 2011)
The rapid depletion of the world fossil fuel supply and the increasing problem of greenhouse gas effects have strenghtened the worldwide interest in alternative sources of energy. Bioethanol accounts for the majority of ...
Bucket wheel excavator Integrity assessment of the bucket wheel boom tie-rod welded joint
(Pergamon-Elsevier Science Ltd, Oxford, 2011)
The bucket wheel boom tie-rods are vital structural parts of the bucket wheel excavators (BWE) Their failures inevitably cause BWE collapse and are followed among other things by a substantial financial loss (millions of ...