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Harvesting and blending options for lower alcohol wines: a sensory and chemical investigation
Peter J. Torley, Guillaume Antalick, John W. Blackman, Rocco Longo, Suzy Y. Rogiers, Leigh Schmidtke, 2017, izvirni znanstveni članek

Najdeno v: ključnih besedah
Povzetek najdenega: ...regression, early harvest, herbaceous, reduced-alcohol, sensory descriptive analysis, volatiles...
Ključne besede: PLS regression, early harvest, herbaceous, reduced-alcohol, sensory descriptive analysis, volatiles
Objavljeno: 30.08.2017; Ogledov: 2321; Prenosov: 0
.pdf Polno besedilo (373,38 KB)

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Comparison of consecutive harvests versus blending treatments to produce lower alcohol wines from Cabernet Sauvignon grapes: Impact on wine volatile composition and sensory properties
Olaf Schelezki, Katja Šuklje, Paul K. Boss, David W. Jeffery, 2018, izvirni znanstveni članek

Najdeno v: ključnih besedah
Povzetek najdenega: ...Berry shrivel, Wine aroma, Sensory analysis, Water addition, Alcohol content...
Ključne besede: Berry shrivel, Wine aroma, Sensory analysis, Water addition, Alcohol content
Objavljeno: 03.04.2018; Ogledov: 2320; Prenosov: 0
.pdf Polno besedilo (574,08 KB)

26.
Amorphous nanocomposite of polycarbosilanes and aluminum oxide
Andraž Mavrič, 2018, doktorska disertacija

Opis: This work presents a paradigm for high temperature stabilization of bulk amorphous aluminium oxide. The thermodynamic stabilization is achieved by preparing a nanocomposite, where polymethylsilane dendritic molecules are dispersed in an aluminium hydroxide gel. Upon heat-treatment the gel transforms to the amorphous aluminium oxide that is stable up to 900°C. The dispersion of the macromolecules and their covalent bonding to the alumina matrix induce homogeneously distributed strain fields that keep the alumina amorphous. The first part of the thesis focuses on the synthesis, characterization and solubility properties of the dendritic polymethylsilane. The polymethylsilane is synthetized by electrochemical polymerization from trichloromethylsilane monomer. The polymerization mechanism, involving a single polymerization pathway, is identified. The polymer growth proceeds through reduction of the monomers to the silyl anions and their addition to the growing polymer. The solubility of three chemically related but topologically different polysilanes (linear, dendritic and network) were studied by dynamic light scattering. At room temperature the agglomerates in a range from 500 to 1300 nm are present. They undergo de-agglomeration at slightly elevated temperatures of around 40°C. The de-agglomeration results in formation of stable solutions, where a hydrodynamic diameter of the individual polymer molecules was measured to be in a range from 20 to 40 nm. The obtained diameters of two dendritic polymethylsilane macromolecules, synthesized under different electrolysis conditions, are much larger than the theoretical size estimated for an ideal dendrimer. We determined by 29Si NMR that the reason for this is in a large number of branching irregularities (defects) contained in the molecular structure. Combining the experimental values obtained by DLS and density measurements with a structural model that considers the branching irregularities, it is shown that the inclusion of the defects allows the dendritic polymer to exceed the sterical limitations and form the hyperbranched dendritic structure. The final size depends on a relative amount of the branching defects. In the second part, the synthetized polymethylsilane molecules were successfully used for the nanocomposite formation. The aluminium hydroxide gel with the dispersed polymethylsilane molecules was prepared as a precursor. Upon heat-treatment it gives the amorphous aluminium oxide stable up to 900°C. The dispersed macromolecules induce homogeneously distributed strain fields that keep the aluminium oxide amorphous during the thermal treatment the dispersed macromolecules covalently bind to the matrix, inducing the interface strain. The amorphous state was confirmed by the presence of penta-coordinated aluminium detected by 27Al NMR and a low bandgap measured by UV-vis absorption spectroscopy.
Najdeno v: ključnih besedah
Povzetek najdenega: ...hyperbranched dendritic structure, dynamic light scattering, thermal analysis, transmission electron microscopy, scanning electron microscopy, X-ray...
Ključne besede: amorphous aluminium oxide, polymethylsilane, nanocomposite, electropolymerization, solubility, agglomeration, de-agglomeration, dendrimer, hyperbranched dendritic structure, dynamic light scattering, thermal analysis, transmission electron microscopy, scanning electron microscopy, X-ray diffraction, infrared spectroscopy, UV-Vis spectroscopy
Objavljeno: 19.07.2018; Ogledov: 3127; Prenosov: 137
.pdf Polno besedilo (5,07 MB)

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Rapid and Sensitive Determination of ChE Activity in Blood Plasma
Andrej Jerkič, Tjaša Birsa, Mojca Žorž, Dorota Korte, Martina Bergant Marušič, Mladen Franko, 2018, objavljeni povzetek znanstvenega prispevka na konferenci

Najdeno v: ključnih besedah
Povzetek najdenega: ...flow injection analysis,thermal lens spectrometric detection, acetylcholinesterase, butyrylcholinesterase, enzy...
Ključne besede: flow injection analysis, thermal lens spectrometric detection, acetylcholinesterase, butyrylcholinesterase, enzyme activity
Objavljeno: 16.07.2018; Ogledov: 2264; Prenosov: 0
.pdf Polno besedilo (642,94 KB)

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TLS-FIA System For Screening of Dissolved Iron in Ocean Water
Gaja Tomsič, Dorota Korte, Arne Bratkič, Mladen Franko, 2018, objavljeni povzetek znanstvenega prispevka na konferenci

Najdeno v: ključnih besedah
Povzetek najdenega: ...flow injection analysis, iron concentration, ocean water, thermal lens spectroscopy...
Ključne besede: flow injection analysis, iron concentration, ocean water, thermal lens spectroscopy
Objavljeno: 16.07.2018; Ogledov: 2265; Prenosov: 0
.pdf Polno besedilo (679,78 KB)

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Search for Gamma-Ray Emission from Local Primordial Black Holes with the Fermi Large Area Telescope
Gabrijela Zaharijas, 2018, izvirni znanstveni članek

Najdeno v: ključnih besedah
Ključne besede: astroparticle physics, black hole physics, methods: data analysis
Objavljeno: 23.08.2018; Ogledov: 1786; Prenosov: 0
.pdf Polno besedilo (788,37 KB)

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A comparative study of partial dealcoholisation versus early harvest: Effects on wine volatile and sensory profiles
Suzy.Y Rogers, Peter J. Torley, Guillaume Antalick, John.W Blackman, Rocco Longo, Leigh Schmidtke, 2018, izvirni znanstveni članek

Najdeno v: ključnih besedah
Povzetek najdenega: ...Common component and specific weights analysis, Dealcoholisation, Early harvest, Evaporative perstraction, Lower alcohol...
Ključne besede: Common component and specific weights analysis, Dealcoholisation, Early harvest, Evaporative perstraction, Lower alcohol wine, Reverse osmosis, Sensory descriptive analysis, Wine
Objavljeno: 17.09.2018; Ogledov: 1701; Prenosov: 0
.pdf Polno besedilo (829,34 KB)

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