Browsing by Subject "OXIDATION"
Now showing items 1-20 of 33
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Assessment of antioxidant activity of extracts from unique Greek varieties of Leguminosae plants using in vitro assays
(2007)Background: It is believed that legumes are a very good source of micronutrients and phytochemicals that present chemopreventive activity against diseases such as diabetes, coronary heart disease and colon cancer. Methanolic ... -
Assessment of vulnerable freshwater ecosystems and various aquatic effluents by means of ecotoxicological assays
(2015)A battery of ecotoxicological assays of different trophic chain levels has been performed for water and sediment samples of two Greek vulnerable freshwater ecosystems (Karla Lake in Thessaly Region and Koronia Lake in ... -
Characterization of methanogenic and prokaryotic assemblages based on mcrA and 16S rRNA gene diversity in sediments of the Kazan mud volcano (Mediterranean Sea)
(2008)The diversity of the methyl-coenzyme reductase A (mcrA) and 16S rRNA genes was investigated in gas hydrate containing sediment from the Kazan mud volcano, eastern Mediterranean Sea. mcrA was detected only at 15 and 20 cm ... -
Correlation of total polyphenolic content with antioxidant and antibacterial activity of 24 extracts from Greek domestic Lamiaceae species
(2012)Lamiaceae family species are considered important because of their use in folk medicine, culinary and flavouring throughout the world. Their interesting bioactivities are attributed mainly to essential oils, polyphenols ... -
Direct methanol fuel cells: The effect of electrode fabrication procedure on MEAs structural properties and cell performance
(2005)In the present paper, the effect of electrode preparation procedure on the structural properties of membrane electrode assembly (MEA) and consequently on the performance of direct methanol fuel cells (DMFCs) was investigated. ... -
EFFECT OF MODIFIED ATMOSPHERE PACKAGING ON HALVAS FARSALON QUALITY DURING REFRIGERATED STORAGE
(2012)Halvas Farsalon, a traditional confection of Greece, was packaged under modified atmosphere conditions (MAP) with four different gas mixtures (groups: A: 80% N-2-20%CO2; B: 30%N-2-70%CO2; C: 100%N-2, and Control: atmospheric ... -
The effect of the MEA preparation procedure on both ethanol crossover and DEFC performance
(2005)In the present work, the changes of Nafion((R))-115 membrane porosity in the presence of ethanol aqueous solutions of different concentrations were determined by weighing vacuum-dried and ethanol solution-equilibrated ... -
Effects of B20 on the Operation of a Single-Cylinder Engine Equipped with a SiC Diesel Particulate Filter
(2014)This is an experimental and computational study of the effect of a low-percentage biodiesel blend on the operation, diesel filter loading, and fuel additive-assisted regeneration behavior on a conventional, direct injection ... -
An EPR study of Cu adsorption by clinoptilolite from Cl-, NO3 and SO42- solutions
(2008)The concentration and the type of Cu2+ species adsorbed on a natural zeolite (Clinoptilolite) was measured and studied by using Electron Paramagnetic Resonance Spectroscopy (EPR). The EPR results together with macroscopic ... -
Ethanol crossover and direct ethanol PEM fuel cell performance modeling and experimental validation
(2006)In the present work, a one-dimension, steady-state and single phase model is developed with the purpose of describing the mass transport within a PtRu/Nafion (R)-115/Pt membrane-electrode assembly and the performance of a ... -
Ethanol crossover phenomena and its influence on the performance of DEFC
(2005)In the present work, Nafion (R) membrane porosity changes were determined in aqueous ethanol solutions with different concentrations by weighing vacuum-dried and ethanol aqueous solution equilibrated membranes at room ... -
Ethanol Steam Reforming in a Two-Step Process. Short-Time Feasibility Tests
(2013)This paper describes a two-step process for hydrogen generation consisting of low-temperature (573 K) dehydrogenation of ethanol over copper chromite, followed by steam reforming (SR) over Ni/MgO at higher temperature (923 ... -
Experimental investigation of the pressure drop in porous ceramic diesel particulate filters
(2002)Understanding of the mechanisms that affect flow and pressure drop in porous ceramic diesel particulate filters is important in the design optimization of this class of diesel exhaust after-treatment systems. Furthermore, ... -
Experimental investigation of the role of soot volatile organic fraction in the regeneration of diesel filters
(2003)This paper involves an experimental investigation of the role of the volatile organic fraction (VOF) adsorbed on the diesel particulate, in the initiation of regeneration of a SiC diesel filter installed on a modern diesel ... -
Experimental validation of a fuel additive assisted regeneration model in silicon carbide diesel filters
(2004)In this paper, an experimental validation procedure is applied to an improved one-dimensional model of fuel additive assisted regeneration of a diesel particulate filter. Full-scale tests on an engine bench of the regeneration ... -
Identification of catalytic converter kinetic model using a genetic algorithm approach
(2004)The need to deliver fast-in-market and right-first-time design for ultra-low-emission vehicles at a reasonable cost is driving the automotive industries to invest significant manpower in computer-aided design and optimization ... -
Impact of Fungicides on the Diversity and Function of Non-target Ammonia-Oxidizing Microorganisms Residing in a Litter Soil Cover
(2012)Litter soil cover constitutes an important micro-ecosystem in sustainable viticulture having a key role in nutrient cycling and serving as a habitat of complex microbial communities. Ammonia-oxidizing bacteria (AOB) and ... -
In vivo evaluation of CYP1A2 CYP2A6, NAT-2 and xanthine oxidase activities in a Greek population sample by the RP-HPLC monitoring of caffeine metabolic ratios
(2007)A RP-HPLC method was developed for the assessment of caffeine and its metabolites in urine and was used for the evaluation of the CYP1A2, CYP2A6, xanthine oxidase (XO) and N-acetyl-transferase-2 (NAT-2) in vivo activities ... -
Influence of ozonation on the in vitro mutagenic and toxic potential of secondary effluents
(2008)Reclamation of municipal effluents by advanced treatment processes is an attractive perspective for facing certain water shortage problems. However, the application of tertiary techniques should be thoroughly examined for ... -
Investigation of the effect of biodiesel blends on the performance of a fuel additive-assisted diesel filter system
(2014)The results of full-scale regeneration tests with a unit silicon carbide diesel particulate filter installed on a single-cylinder diesel engine are presented. Two sets of transient regeneration experiments, one for each ...