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Development of fly ash-based geopolymer microstructure at room temperature
(Novpress Sro, Brno, 2011)
The development of geopolymers, as an alternative to traditional cement, by alkali activation of fly ash is a research topic in the scientific community. Many authors have agreed that there is a strong link between mechanical ...
Determination of differential heavy metal and trace element accumulation in liver, gills, intestine and muscle of sterlet (Acipenser ruthenus) from the Danube River in Serbia by ICP-OES
(Elsevier Science Bv, Amsterdam, 2011)
The accumulation of heavy metals in fish has been extensively studied and well documented. However, the research has been mainly focused on the muscle tissue, while the distribution patterns among other tissues, such as ...
Surrogate data modeling the relationship between high frequency amplitudes and Higuchi fractal dimension of EEG signals in anesthetized rats
(Academic Press Ltd- Elsevier Science Ltd, London, 2011)
We used spectral analysis and Higuchi fractal dimension (FD) to correlate the EEG spectral characteristics of the sensorimotor cortex, hippocampus, and pons with their corresponding EEG signal complexities in anesthetized ...
Preliminary data on essential oil composition of the moss Rhodobryum ontariense (Kindb.) Kindb.
(Adac-Cryptogamie, Paris, 2011)
The essential oil composition of the moss Rhodobryum ontariense obtained by hydrodistillation was preliminary analyzed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Thirteen compounds (86.41% ...
Free radicals and antioxidants at a glance using EPR spectroscopy
(Taylor & Francis Ltd, Abingdon, 2011)
The delicate balance between the advantageous and detrimental effects of free radicals is one of the important aspects of human (patho)physiology. The controlled production of reactive oxygen and nitrogen species has an ...
A Thermal Sensor for Water Using Self-Heated NTC Thick-Film Segmented Thermistors
(IEEE-Inst Electrical Electronics Engineers Inc, Piscataway, 2011)
A simple thermal (heat loss) sensor system was designed in a small plastic tube housing using a negative thermal coefficient (NTC) thick-film thermistor as a self-heating sensor. The voltage power supply [range constant ...
Improved Model of T-Type LC EMI Chip Filters Using New Microstrip Test Fixture
(IEEE-Inst Electrical Electronics Engineers Inc, Piscataway, 2011)
In this paper we present an improved model of the multilayered T-type electromagnetic interference chip LC filter for printed circuit board applications, and an improved measurement technique for characterization of such ...
Antioxidant activity of small grain cereals caused by phenolics and lipid soluble antioxidants
(Academic Press Ltd- Elsevier Science Ltd, London, 2011)
In this study, the content of soluble, free forms of phenolic compounds (total phenolics, flavonoids, PVPP (polyvinylpolypyrrolidone) bound phenolics, proanthocyanidins and phenolic acids), as well as the content of ...
Morphology and composition of Ni-Co electrodeposited powders
(Elsevier Science Inc, New York, 2011)
The morphology, phase and chemical composition of Ni-Co alloy powders electrodeposited from an ammonium sulfate-boric acid containing electrolyte with different ratio of Ni/Co ions were investigated. The ratios of NVCo ...
Hydrogen storage properties of MgH2 mechanically milled with alpha and beta SiC
(Pergamon-Elsevier Science Ltd, Oxford, 2011)
To understand the influence of various crystallographic phases on hydrogen storage properties, ball milling of MgH2 with hexagonal (alpha) and cubic (beta) SiC have been performed. Structural characterization of all samples ...