TY  - JOUR
AU  - Rubinjoni, Luka
AU  - Stanković, Srboljub J.
AU  - Lončar, Boris
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4432
AB  - Cementation is the baseline technology for conditioning of low to intermediate level radioactive waste. Geopolymers, a class of alkali activated binders, are a promising new material for radioactive waste treatment. Coal fly-ash based geopolymers are a low-cost, low greenhouse gas footprint alternative to metakaolin based materials. Both the grouting of sludge/powders/liquids and encapsulation of solids/compacted waste rely on the grout maintaining optimal flow (theological properties) during the mixing and pouring operations, and achieving a set leading to proper long term solidification (mechanical properties). The initial and final setting time for fly-ash geopolymer paste, based on the SRPS EN 196-3 standard, has been measured upon irradiation by gamma rays in a Co-60 reference field positioned with a kerma air rate of 3.42 mGys(-1). The binder paste was prepared using fly-ash from the TENT B power plant's electrostatic filters without further sieving, activated by water glass with module 1.5 and mixed with distilled water until a satisfactory flow was obtained, and poured into the sample and control molds. The initial and final setting times for the irradiated sample and non-irradiated control were determined by the Vicat apparatus. The irradiated sample demonstrated an 11 % shorter initial setting time, and 16 % shorter final setting time, compared to the control.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Nuclear Technology & Radiation Protection
T1  - The effect of co-60 gamma irradiation on coal fly-ash geopolymer paste setting time
EP  - 153
IS  - 2
SP  - 150
VL  - 35
DO  - 10.2298/NTRP2002150R
ER  - 

@article{
author = "Rubinjoni, Luka and Stanković, Srboljub J. and Lončar, Boris",
year = "2020",
abstract = "Cementation is the baseline technology for conditioning of low to intermediate level radioactive waste. Geopolymers, a class of alkali activated binders, are a promising new material for radioactive waste treatment. Coal fly-ash based geopolymers are a low-cost, low greenhouse gas footprint alternative to metakaolin based materials. Both the grouting of sludge/powders/liquids and encapsulation of solids/compacted waste rely on the grout maintaining optimal flow (theological properties) during the mixing and pouring operations, and achieving a set leading to proper long term solidification (mechanical properties). The initial and final setting time for fly-ash geopolymer paste, based on the SRPS EN 196-3 standard, has been measured upon irradiation by gamma rays in a Co-60 reference field positioned with a kerma air rate of 3.42 mGys(-1). The binder paste was prepared using fly-ash from the TENT B power plant's electrostatic filters without further sieving, activated by water glass with module 1.5 and mixed with distilled water until a satisfactory flow was obtained, and poured into the sample and control molds. The initial and final setting times for the irradiated sample and non-irradiated control were determined by the Vicat apparatus. The irradiated sample demonstrated an 11 % shorter initial setting time, and 16 % shorter final setting time, compared to the control.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Nuclear Technology & Radiation Protection",
title = "The effect of co-60 gamma irradiation on coal fly-ash geopolymer paste setting time",
pages = "153-150",
number = "2",
volume = "35",
doi = "10.2298/NTRP2002150R"
}

Rubinjoni, L., Stanković, S. J.,& Lončar, B.. (2020). The effect of co-60 gamma irradiation on coal fly-ash geopolymer paste setting time. in Nuclear Technology & Radiation Protection
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 35(2), 150-153.
https://doi.org/10.2298/NTRP2002150R

Rubinjoni L, Stanković SJ, Lončar B. The effect of co-60 gamma irradiation on coal fly-ash geopolymer paste setting time. in Nuclear Technology & Radiation Protection. 2020;35(2):150-153.
doi:10.2298/NTRP2002150R .

Rubinjoni, Luka, Stanković, Srboljub J., Lončar, Boris, "The effect of co-60 gamma irradiation on coal fly-ash geopolymer paste setting time" in Nuclear Technology & Radiation Protection, 35, no. 2 (2020):150-153,
https://doi.org/10.2298/NTRP2002150R . .

TY  - JOUR
AU  - Selaković, Sara D.
AU  - Stanisavljević, Nemanja S.
AU  - Vujić, Vukica D.
AU  - Rubinjoni, Luka
AU  - Jovanović, Zivko S.
AU  - Radović, Svetlana R.
AU  - Cvetković, Dragana D.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3855
AB  - Interactions between plants and herbivorous insects can be shaped by light environment, resulting in differential herbivory in sun and shade. In dioecious species, the combination of plant sex and light-induced changes in defense traits and nutritive value can alter the patterns of foliar damage. We explored the combined effects of light environment and plant sex on natural herbivore damage and plant traits in the dioecious understory forb Mercurialis perennis on Mt. Kopaonik (Serbia). The role of plant traits in predicting the extent of damage was examined as well. Male and female plants from contrasting light environments (shade vs. sun) were analyzed with respect to leaf damage, as well as plant morphological and biochemical traits (size, specific leaf area, carbon-based defensive compounds and nutritional quality). We found prominent differences in herbivore damage between sun and shade conditions, but not between the sexes. Plants from the sun-exposed site had a significantly larger leaf area removed. The specific leaf area co-varied with herbivore damage in an inverse fashion, while leaf nutritional value had a moderate effect. Contrasting light conditions influenced the patterns of intersexual differences in the contents of condensed tannins and soluble proteins, with females exhibiting higher trait values. We found that factors defining risk of consumption were related to plant morphological traits and nutritive value rather than to chemical defenses.
PB  - Srpsko biološko društvo, Beograd, i dr.
T2  - Archives of Biological Sciences
T1  - Light and sex interplay: differential herbivore damage in sun and shade in dioecious Mercurialis perennis
EP  - 479
IS  - 3
SP  - 469
VL  - 70
DO  - 10.2298/ABS171207007S
ER  - 

@article{
author = "Selaković, Sara D. and Stanisavljević, Nemanja S. and Vujić, Vukica D. and Rubinjoni, Luka and Jovanović, Zivko S. and Radović, Svetlana R. and Cvetković, Dragana D.",
year = "2018",
abstract = "Interactions between plants and herbivorous insects can be shaped by light environment, resulting in differential herbivory in sun and shade. In dioecious species, the combination of plant sex and light-induced changes in defense traits and nutritive value can alter the patterns of foliar damage. We explored the combined effects of light environment and plant sex on natural herbivore damage and plant traits in the dioecious understory forb Mercurialis perennis on Mt. Kopaonik (Serbia). The role of plant traits in predicting the extent of damage was examined as well. Male and female plants from contrasting light environments (shade vs. sun) were analyzed with respect to leaf damage, as well as plant morphological and biochemical traits (size, specific leaf area, carbon-based defensive compounds and nutritional quality). We found prominent differences in herbivore damage between sun and shade conditions, but not between the sexes. Plants from the sun-exposed site had a significantly larger leaf area removed. The specific leaf area co-varied with herbivore damage in an inverse fashion, while leaf nutritional value had a moderate effect. Contrasting light conditions influenced the patterns of intersexual differences in the contents of condensed tannins and soluble proteins, with females exhibiting higher trait values. We found that factors defining risk of consumption were related to plant morphological traits and nutritive value rather than to chemical defenses.",
publisher = "Srpsko biološko društvo, Beograd, i dr.",
journal = "Archives of Biological Sciences",
title = "Light and sex interplay: differential herbivore damage in sun and shade in dioecious Mercurialis perennis",
pages = "479-469",
number = "3",
volume = "70",
doi = "10.2298/ABS171207007S"
}

Selaković, S. D., Stanisavljević, N. S., Vujić, V. D., Rubinjoni, L., Jovanović, Z. S., Radović, S. R.,& Cvetković, D. D.. (2018). Light and sex interplay: differential herbivore damage in sun and shade in dioecious Mercurialis perennis. in Archives of Biological Sciences
Srpsko biološko društvo, Beograd, i dr.., 70(3), 469-479.
https://doi.org/10.2298/ABS171207007S

Selaković SD, Stanisavljević NS, Vujić VD, Rubinjoni L, Jovanović ZS, Radović SR, Cvetković DD. Light and sex interplay: differential herbivore damage in sun and shade in dioecious Mercurialis perennis. in Archives of Biological Sciences. 2018;70(3):469-479.
doi:10.2298/ABS171207007S .

Selaković, Sara D., Stanisavljević, Nemanja S., Vujić, Vukica D., Rubinjoni, Luka, Jovanović, Zivko S., Radović, Svetlana R., Cvetković, Dragana D., "Light and sex interplay: differential herbivore damage in sun and shade in dioecious Mercurialis perennis" in Archives of Biological Sciences, 70, no. 3 (2018):469-479,
https://doi.org/10.2298/ABS171207007S . .