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51.
52.
Novel applications of oxygenic photosynthetic organisms
Danijel Stojković, 2015, doktorska disertacija

Opis: Inspired by natural microorganisms that possess a rigid cell wall to protect them in harsh conditions, individual cells of Chlamydomonas reinhardtii were artificially encapsulated with different materials and hydrogen production was enhanced. The first attempt was to cover the cells with hydrated silicon dioxide, which is naturally formed by diatoms. The cells covered with silica were not able to produce hydrogen, but the improved TiO2-encapsualtion of Chlamydomonas reinhardtii was found to positively affect their hydrogen production under sulfur-deprived conditions. It was shown that incubation of the cells in the dark before exposure to light was necessary in order to overcome the toxic effects of the (RKK)4D8 catalytic peptide that is essential for TiO2 formation. The TiO2-encapsulated cells were able to produce H2 with about double efficiency during 5-day period compared to non-encapsulated cells. The light-to-H2 conversion efficiency of TiO2-encapsulated Chlamydomonas reinhardtii system was estimated to be more than 4 % under optimized conditions. The encapsulation with platinum led us to discover the bioreductive properties of Chlamydomonas reinhardtii. Beside the homogeneous Pt reduction carried out by the algae, the most surprising discovery was the possibility to use algae culture for targeted heterogeneous nucleation. An important discovery was that is possible to control the nucleation mechanism and redirect predominantly homogeneous into fully heterogeneous nucleation.
Ključne besede: photosynthesis, H2 production, TiO2, encapsulation, Chlamydomonas reinhardtii, platinum reduction
Objavljeno: 01.04.2015; Ogledov: 2804; Prenosov: 34
.pdf Polno besedilo (23,38 MB)
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53.
54.
Environmental stability and toxicity assessment of chlorantraniliprole and its derivatives
Vesna Lavtižar, 2015, doktorska disertacija

Objavljeno: 05.03.2015; Ogledov: 2196; Prenosov: 150
.pdf Polno besedilo (2,75 MB)
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55.
Quantification of biocomponents in fuels by [sup] 14 C
Romana Krištof, 2015, doktorska disertacija

Objavljeno: 04.03.2015; Ogledov: 1759; Prenosov: 129
.pdf Polno besedilo (3,48 MB)
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56.
57.
The cultural importance of karst and caves
Luiz Eduardo Panisset Travassos, 2011, doktorska disertacija

Ključne besede: karst, cultural heritage
Objavljeno: 19.02.2015; Ogledov: 1699; Prenosov: 17
.pdf Polno besedilo (31,43 MB)
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58.
Povijest poznavanja Dinarskog krša na primjeru Popova polja
Ivo Lučić, 2009, doktorska disertacija

Objavljeno: 19.02.2015; Ogledov: 1596; Prenosov: 23
.pdf Polno besedilo (8,33 MB)
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59.
Capoeira
Goran Gumze, 2014, doktorska disertacija

Ključne besede: martial arts, lifestyles, leisure, idleness, depression (psychology), aggressiveness (psychology), violence
Objavljeno: 19.02.2015; Ogledov: 1358; Prenosov: 140
.pdf Polno besedilo (1,72 MB)
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60.
Nacionalna identiteta in glasba pri šoloobveznih mladostnikih
Lorena Mihelač, 2011, doktorska disertacija

Objavljeno: 19.02.2015; Ogledov: 1208; Prenosov: 85
.pdf Polno besedilo (4,21 MB)
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