Претраживање
Приказ резултата 51-60 од 502
A novel method for production of PVA-based microfibers by freezing/thawing cycles in hydrophilic settings
(Wiley-Blackwell, Hoboken, 2014)
In situ Al-27 NMR kinetic investigation of zeolite A crystallization
(Elsevier Science Bv, Amsterdam, 2014)
In this study, in situ Al-27 NMR spectroscopy was used to gain detailed information concerning kinetics of zeolite A crystallization. Changes of relative intensity and width at half-height of NMR lines at 59 ppm ascribed ...
An exergy composite curves approach for the design of optimum multi-pressure organic Rankine cycle processes
(Pergamon-Elsevier Science Ltd, Oxford, 2014)
This work adopts the (ECCs) under bar (exergy composite curves) approach to explore the potential for ORC (organic Rankine cycle) process improvements. The method is used to explore different ORC configurations supported ...
Review of biodiesel synthesis from waste oil under elevated pressure and temperature: Phase equilibrium, reaction kinetics, process design and techno-economic study
(Pergamon-Elsevier Science Ltd, Oxford, 2014)
The synthesis of biodiesel under elevated pressure and temperature could be promising technology which could result in sustainable biodiesel production, from renewable and waste streams like waste oil or used frying oil, ...
Metal | polypyrrole battery with the air regenerated positive electrode
(Elsevier Science Bv, Amsterdam, 2014)
Recharge characteristics of the battery based on the electrochemically synthesized polypyrrole cathode and aluminum, zinc, or magnesium anode in 2 M NH4Cl are investigated. It is shown that polypyrrole electrode can be ...
Protein-reinforced and chitosan-pectin coated alginate microparticles for delivery of flavan-3-ol antioxidants and caffeine from green tea extract
(Elsevier Sci Ltd, Oxford, 2015)
In this study, potential interactions of alginate-proteins and proteins-polyphenols were utilized for the formulation of microparticles encapsulating green tea flavan-3-ols and caffeine. Electrostatic assisted extrusion ...
Trace analysis of selected hormones and sterols in river sediments by liquid chromatography-atmospheric pressure chemical ionization-tandem mass spectrometry
(Elsevier, Amsterdam, 2014)
In this paper, development and optimization of new LC-MS method for determination of twenty selected hormones, human/animal and plant sterols in river sediments were described. Sediment samples were prepared using ultrasonic ...
Cavitation resistance of refractory concrete: Influence of sintering temperature
(Elsevier Sci Ltd, Oxford, 2013)
The purpose of this study was to investigate possible application of refractory concrete in conditions of cavitation effect where the metal materials are usually applied. Also, influence of different sintering temperatures ...
Heat transfer between a packed bed and a larger immersed spherical particle
(Pergamon-Elsevier Science Ltd, Oxford, 2014)
In this paper, heat transfer coefficients between the hot packed beds of particles and the larger cold immersed sphere were experimentally determined. The packed beds consisted of mono-sized spherical glass particles of ...
Mass transfer and fluid flow visualization for single cylinder by the adsorption method
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
Mass transfer coefficient in single phase flow around short cylinder, has been studied experimentally using adsorption method. Experiments were conducted in "two-dimensional" column 140 x 10 x 200 mm. The mass transfer ...