TY  - JOUR
AU  - Popović, Jasmina
AU  - Popović, Mlađan
AU  - Điporović-Momčilović, Milanka
AU  - Prahin, Ana M.
AU  - Dodevski, Vladimir M.
AU  - Gavrilović-Grmuša, Ivana
PY  - 2021
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1209
AB  - Particles of beech wood were treated with hot water at the temperature of 150 degrees C, during 60 min, prior to the pelleting process. The applied hot water pretreatment affected the chemical composition and heating value of particles. Two groups of pellets, designated as PT 10 and PT 20, were produced from treated beech particles, with the moisture content of particles being 10.5 and 20.5 %, respectively. Pellets from nontreated beech particles (PNT) served as controls to assess the hot water pretreatment effects on the pellet properties. Both, the applied pretreatment, and the particle moisture content, affected properties of the obtained pellets. The heating value of PT 10 ad PT 20 pellets has increased for similar to 6 and 1 %, respectively. The mineral (ash) content in treated pellets decreased for about 24 % in comparison to that in PNT pellets. In addition, the bulk (apparent) density of pellets has increased for 21 % (PT 10) and 10 % (PT 20), as a consequence of the hot water pretreatment of particles. The specific density of PT 10 pellets was for 16 % higher, while the equilibrium moisture content (after conditioning at RH 68 % and 20.1 degrees C) was for about 32 % lower in comparison to the respective properties of PNT pellets.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Effects of water pretreatment on properties of pellets made from beech particles
EP  - 51
IS  - 1
SP  - 39
VL  - 75
DO  - 10.2298/HEMIN191224007P
UR  - conv_1529
ER  - 

@article{
author = "Popović, Jasmina and Popović, Mlađan and Điporović-Momčilović, Milanka and Prahin, Ana M. and Dodevski, Vladimir M. and Gavrilović-Grmuša, Ivana",
year = "2021",
abstract = "Particles of beech wood were treated with hot water at the temperature of 150 degrees C, during 60 min, prior to the pelleting process. The applied hot water pretreatment affected the chemical composition and heating value of particles. Two groups of pellets, designated as PT 10 and PT 20, were produced from treated beech particles, with the moisture content of particles being 10.5 and 20.5 %, respectively. Pellets from nontreated beech particles (PNT) served as controls to assess the hot water pretreatment effects on the pellet properties. Both, the applied pretreatment, and the particle moisture content, affected properties of the obtained pellets. The heating value of PT 10 ad PT 20 pellets has increased for similar to 6 and 1 %, respectively. The mineral (ash) content in treated pellets decreased for about 24 % in comparison to that in PNT pellets. In addition, the bulk (apparent) density of pellets has increased for 21 % (PT 10) and 10 % (PT 20), as a consequence of the hot water pretreatment of particles. The specific density of PT 10 pellets was for 16 % higher, while the equilibrium moisture content (after conditioning at RH 68 % and 20.1 degrees C) was for about 32 % lower in comparison to the respective properties of PNT pellets.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Effects of water pretreatment on properties of pellets made from beech particles",
pages = "51-39",
number = "1",
volume = "75",
doi = "10.2298/HEMIN191224007P",
url = "conv_1529"
}

Popović, J., Popović, M., Điporović-Momčilović, M., Prahin, A. M., Dodevski, V. M.,& Gavrilović-Grmuša, I.. (2021). Effects of water pretreatment on properties of pellets made from beech particles. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 75(1), 39-51.
https://doi.org/10.2298/HEMIN191224007P
conv_1529

Popović J, Popović M, Điporović-Momčilović M, Prahin AM, Dodevski VM, Gavrilović-Grmuša I. Effects of water pretreatment on properties of pellets made from beech particles. in Hemijska industrija. 2021;75(1):39-51.
doi:10.2298/HEMIN191224007P
conv_1529 .

Popović, Jasmina, Popović, Mlađan, Điporović-Momčilović, Milanka, Prahin, Ana M., Dodevski, Vladimir M., Gavrilović-Grmuša, Ivana, "Effects of water pretreatment on properties of pellets made from beech particles" in Hemijska industrija, 75, no. 1 (2021):39-51,
https://doi.org/10.2298/HEMIN191224007P .,
conv_1529 .

TY  - JOUR
AU  - Popović, Mlađan
AU  - Popović, Jasmina
AU  - Điporović-Momčilović, Milanka
AU  - Vukić, Nevena
AU  - Budinski-Simendić, Jaroslava
AU  - Gavrilović-Grmuša, Ivana
AU  - Hamid, Fadhil
PY  - 2019
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/1040
AB  - U ovom radu istraživan je uticaj pred-tretmana poljskog jasena (Fraxinus angustifolia Vahl. ssp. Pannonica Soo & Simon) na tok očvršćavanja urea-formaldehidnog (UF) adheziva. Metoda diferecijalne skenirajuće kalorimetrije (DSC) korišćena je za praćenje reakcije očvršćavanja UF adheziva u smeši sa netretiranim drvnim brašnom (kontrolna serija) i drvnim brašnom dobijenim od različito tretiranog iverja poljskog jasena. Primenjena su tri različita pred-tretmana: tretman rastvorom natrijum karbonata (0,03 g/g apsolutno suvog drveta), tretman rastvorom sirćetne kiseline (0,06 g/g apsolutno suvog drveta) i tretman destilovanom vodom. Rezultati praćenja očvršćavanja različitih adhezivnih sistema nisu ukazali na značajne razlike u temperaturama maksimuma reakcije, kao niti u vrednostima entalpije reakcije. Međutim, relativno niže vrednosti energije aktivacije uočene su kod UF adhezivnih sistema sa drvnim brašnom dobijenim nakon alkalnog i kiselog tretmana (76,64 and 76,92 kJ/mol) u odnosu na UF adhezive sa kontrolnim (netretiranim) drvnim brašnom i drvnim brašnom tretiranim vodom (79,28 and 79,14 kJ/mol). Pored toga, primenjene izo-konverzione metode pokazale su različito ponašanje ispitivanih UF adhezivnih sistema tokom očvršćavanja.
AB  - The influence of Narrow Leaved Ash (Fraxinus angustifolia Vahl. ssp. Pannonica Soo & Simon) pre-treatments on the curing behavior of urea-formaldehyde (UF) adhesive was studied. Differential scanning calorimetry (DSC) was used to monitor the curing reaction of UF adhesive mixed with non-treated wood flour (control series) and wood flour of Narrow leaved Ash obtained after different pre-treatments of wood particles. Three different pre-treatments were applied, one with sodium carbonate solution (0.03 g/g of dry wood), one with acetic acid solution (0.06 g/g of dry wood) and one with distilled water. The curing reaction of different adhesive systems showed no apparent differences in peak temperature values, and there were no significant differences in the enthalpy of the reaction. However, it was assessed that the activation energy has lower values for the UF systems with alkaline and acid treated wood flour (76.64 and 76.92 kJ/mol) in regard to the UF systems with control (untreated) wood flour and water treated wood flour (79.28 and 79.14 kJ/mol). In addition, the application of iso-conversional models have shown different curing behavior of UF adhesive systems.
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Materials Protection
T1  - Očvršćavanje urea-formaldehidnog adheziva u prisustvu hemijski tretiranog drveta poljskog jasena
T1  - The curing behavior of urea-formaldehyde adhesive in the presence of chemically treated narrow-leaved ash
EP  - 69
IS  - 1
SP  - 64
VL  - 60
DO  - 10.5937/zasmat1901064P
UR  - conv_2004
ER  - 

@article{
author = "Popović, Mlađan and Popović, Jasmina and Điporović-Momčilović, Milanka and Vukić, Nevena and Budinski-Simendić, Jaroslava and Gavrilović-Grmuša, Ivana and Hamid, Fadhil",
year = "2019",
abstract = "U ovom radu istraživan je uticaj pred-tretmana poljskog jasena (Fraxinus angustifolia Vahl. ssp. Pannonica Soo & Simon) na tok očvršćavanja urea-formaldehidnog (UF) adheziva. Metoda diferecijalne skenirajuće kalorimetrije (DSC) korišćena je za praćenje reakcije očvršćavanja UF adheziva u smeši sa netretiranim drvnim brašnom (kontrolna serija) i drvnim brašnom dobijenim od različito tretiranog iverja poljskog jasena. Primenjena su tri različita pred-tretmana: tretman rastvorom natrijum karbonata (0,03 g/g apsolutno suvog drveta), tretman rastvorom sirćetne kiseline (0,06 g/g apsolutno suvog drveta) i tretman destilovanom vodom. Rezultati praćenja očvršćavanja različitih adhezivnih sistema nisu ukazali na značajne razlike u temperaturama maksimuma reakcije, kao niti u vrednostima entalpije reakcije. Međutim, relativno niže vrednosti energije aktivacije uočene su kod UF adhezivnih sistema sa drvnim brašnom dobijenim nakon alkalnog i kiselog tretmana (76,64 and 76,92 kJ/mol) u odnosu na UF adhezive sa kontrolnim (netretiranim) drvnim brašnom i drvnim brašnom tretiranim vodom (79,28 and 79,14 kJ/mol). Pored toga, primenjene izo-konverzione metode pokazale su različito ponašanje ispitivanih UF adhezivnih sistema tokom očvršćavanja., The influence of Narrow Leaved Ash (Fraxinus angustifolia Vahl. ssp. Pannonica Soo & Simon) pre-treatments on the curing behavior of urea-formaldehyde (UF) adhesive was studied. Differential scanning calorimetry (DSC) was used to monitor the curing reaction of UF adhesive mixed with non-treated wood flour (control series) and wood flour of Narrow leaved Ash obtained after different pre-treatments of wood particles. Three different pre-treatments were applied, one with sodium carbonate solution (0.03 g/g of dry wood), one with acetic acid solution (0.06 g/g of dry wood) and one with distilled water. The curing reaction of different adhesive systems showed no apparent differences in peak temperature values, and there were no significant differences in the enthalpy of the reaction. However, it was assessed that the activation energy has lower values for the UF systems with alkaline and acid treated wood flour (76.64 and 76.92 kJ/mol) in regard to the UF systems with control (untreated) wood flour and water treated wood flour (79.28 and 79.14 kJ/mol). In addition, the application of iso-conversional models have shown different curing behavior of UF adhesive systems.",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Materials Protection",
title = "Očvršćavanje urea-formaldehidnog adheziva u prisustvu hemijski tretiranog drveta poljskog jasena, The curing behavior of urea-formaldehyde adhesive in the presence of chemically treated narrow-leaved ash",
pages = "69-64",
number = "1",
volume = "60",
doi = "10.5937/zasmat1901064P",
url = "conv_2004"
}

Popović, M., Popović, J., Điporović-Momčilović, M., Vukić, N., Budinski-Simendić, J., Gavrilović-Grmuša, I.,& Hamid, F.. (2019). Očvršćavanje urea-formaldehidnog adheziva u prisustvu hemijski tretiranog drveta poljskog jasena. in Materials Protection
Inženjersko društvo za koroziju, Beograd., 60(1), 64-69.
https://doi.org/10.5937/zasmat1901064P
conv_2004

Popović M, Popović J, Điporović-Momčilović M, Vukić N, Budinski-Simendić J, Gavrilović-Grmuša I, Hamid F. Očvršćavanje urea-formaldehidnog adheziva u prisustvu hemijski tretiranog drveta poljskog jasena. in Materials Protection. 2019;60(1):64-69.
doi:10.5937/zasmat1901064P
conv_2004 .

Popović, Mlađan, Popović, Jasmina, Điporović-Momčilović, Milanka, Vukić, Nevena, Budinski-Simendić, Jaroslava, Gavrilović-Grmuša, Ivana, Hamid, Fadhil, "Očvršćavanje urea-formaldehidnog adheziva u prisustvu hemijski tretiranog drveta poljskog jasena" in Materials Protection, 60, no. 1 (2019):64-69,
https://doi.org/10.5937/zasmat1901064P .,
conv_2004 .

TY  - JOUR
AU  - Budinski, Natalija
AU  - Takaci, Đurđica
AU  - Jovičić, Mirjana
AU  - Pavličević, Jelena
AU  - Ristić, Ivan
AU  - Vukić, Nevena
AU  - Teofilović, Vesna
AU  - Popović, Mlađan
PY  - 2015
UR  - https://omorika.sfb.bg.ac.rs/handle/123456789/645
AB  - We discuss a new educational approach for teaching Materials Science and Engineering (MSE). MSE can be introduced to high school students via classes of Mathematics. We describe how such students are introduced to MSE experiments by scientists from the Faculty of Technology of the University of Novi Sad. Subsequently, students share their experiences with their peers. Application of our approach accomplishes at least two objectives. First, students see Applied Mathematics via demonstrated connections between Mathematics and MSE. Second, MSE appears on their radar when they reach the stage of choosing their major at the college level and thus their future professions. This is important since most high school students do not get in contact with exhibitions of the Materials Research Society or with other MSE related activities of professional societies.
T2  - Journal of Materials Education
T1  - Materials science experiments as a tool for learning and applying high school mathematics
EP  - 84
IS  - 1-2
SP  - 59
VL  - 37
UR  - conv_1161
ER  - 

@article{
author = "Budinski, Natalija and Takaci, Đurđica and Jovičić, Mirjana and Pavličević, Jelena and Ristić, Ivan and Vukić, Nevena and Teofilović, Vesna and Popović, Mlađan",
year = "2015",
abstract = "We discuss a new educational approach for teaching Materials Science and Engineering (MSE). MSE can be introduced to high school students via classes of Mathematics. We describe how such students are introduced to MSE experiments by scientists from the Faculty of Technology of the University of Novi Sad. Subsequently, students share their experiences with their peers. Application of our approach accomplishes at least two objectives. First, students see Applied Mathematics via demonstrated connections between Mathematics and MSE. Second, MSE appears on their radar when they reach the stage of choosing their major at the college level and thus their future professions. This is important since most high school students do not get in contact with exhibitions of the Materials Research Society or with other MSE related activities of professional societies.",
journal = "Journal of Materials Education",
title = "Materials science experiments as a tool for learning and applying high school mathematics",
pages = "84-59",
number = "1-2",
volume = "37",
url = "conv_1161"
}

Budinski, N., Takaci, Đ., Jovičić, M., Pavličević, J., Ristić, I., Vukić, N., Teofilović, V.,& Popović, M.. (2015). Materials science experiments as a tool for learning and applying high school mathematics. in Journal of Materials Education, 37(1-2), 59-84.
conv_1161

Budinski N, Takaci Đ, Jovičić M, Pavličević J, Ristić I, Vukić N, Teofilović V, Popović M. Materials science experiments as a tool for learning and applying high school mathematics. in Journal of Materials Education. 2015;37(1-2):59-84.
conv_1161 .

Budinski, Natalija, Takaci, Đurđica, Jovičić, Mirjana, Pavličević, Jelena, Ristić, Ivan, Vukić, Nevena, Teofilović, Vesna, Popović, Mlađan, "Materials science experiments as a tool for learning and applying high school mathematics" in Journal of Materials Education, 37, no. 1-2 (2015):59-84,
conv_1161 .