Ramadani, Uzahir

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  • Ramadani, Uzahir (10)

Author's Bibliography

A Comparative Evaluation of Self-Attention Mechanism with ConvLSTM Model for Global Aerosol Time Series Forecasting

Radivojević, Dušan S.; Lazović, Ivan; Mirkov, Nikola S.; Ramadani, Uzahir; Nikezić, Dušan P.

(2023)

TY  - JOUR
AU  - Radivojević, Dušan S.
AU  - Lazović, Ivan
AU  - Mirkov, Nikola S.
AU  - Ramadani, Uzahir
AU  - Nikezić, Dušan P.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10871
AB  - The attention mechanism in natural language processing and self-attention mechanism in vision transformers improved many deep learning models. An implementation of the self-attention mechanism with the previously developed ConvLSTM sequence-to-one model was done in order to make a comparative evaluation with statistical testing. First, the new ConvLSTM sequence-to-one model with a self-attention mechanism was developed and then the self-attention layer was removed in order to make comparison. The hyperparameters optimization process was conducted by grid search for integer and string type parameters, and with particle swarm optimization for float type parameters. A cross validation technique was used for better evaluating models with a predefined ratio of train-validation-test subsets. Both models with and without a self-attention layer passed defined evaluation criteria that means that models are able to generate the image of the global aerosol thickness and able to find patterns for changes in the time domain. The model obtained by an ablation study on the self-attention layer achieved better outcomes for Root Mean Square Error and Euclidean Distance in regards to developed ConvLSTM-SA model. As part of the statistical test, a Kruskal–Wallis H Test was done since it was determined that the data did not belong to the normal distribution and the obtained results showed that both models, with and without the SA layer, predict similar images with patterns at the pixel level to the original dataset. However, the model without the SA layer was more similar to the original dataset especially in the time domain at the pixel level. Based on the comparative evaluation with statistical testing, it was concluded that the developed ConvLSTM-SA model better predicts without an SA layer.
T2  - Mathematics
T1  - A Comparative Evaluation of Self-Attention Mechanism with ConvLSTM Model for Global Aerosol Time Series Forecasting
VL  - 11
IS  - 7
SP  - 1744
DO  - 10.3390/math11071744
ER  - 
@article{
author = "Radivojević, Dušan S. and Lazović, Ivan and Mirkov, Nikola S. and Ramadani, Uzahir and Nikezić, Dušan P.",
year = "2023",
abstract = "The attention mechanism in natural language processing and self-attention mechanism in vision transformers improved many deep learning models. An implementation of the self-attention mechanism with the previously developed ConvLSTM sequence-to-one model was done in order to make a comparative evaluation with statistical testing. First, the new ConvLSTM sequence-to-one model with a self-attention mechanism was developed and then the self-attention layer was removed in order to make comparison. The hyperparameters optimization process was conducted by grid search for integer and string type parameters, and with particle swarm optimization for float type parameters. A cross validation technique was used for better evaluating models with a predefined ratio of train-validation-test subsets. Both models with and without a self-attention layer passed defined evaluation criteria that means that models are able to generate the image of the global aerosol thickness and able to find patterns for changes in the time domain. The model obtained by an ablation study on the self-attention layer achieved better outcomes for Root Mean Square Error and Euclidean Distance in regards to developed ConvLSTM-SA model. As part of the statistical test, a Kruskal–Wallis H Test was done since it was determined that the data did not belong to the normal distribution and the obtained results showed that both models, with and without the SA layer, predict similar images with patterns at the pixel level to the original dataset. However, the model without the SA layer was more similar to the original dataset especially in the time domain at the pixel level. Based on the comparative evaluation with statistical testing, it was concluded that the developed ConvLSTM-SA model better predicts without an SA layer.",
journal = "Mathematics",
title = "A Comparative Evaluation of Self-Attention Mechanism with ConvLSTM Model for Global Aerosol Time Series Forecasting",
volume = "11",
number = "7",
pages = "1744",
doi = "10.3390/math11071744"
}
Radivojević, D. S., Lazović, I., Mirkov, N. S., Ramadani, U.,& Nikezić, D. P.. (2023). A Comparative Evaluation of Self-Attention Mechanism with ConvLSTM Model for Global Aerosol Time Series Forecasting. in Mathematics, 11(7), 1744.
https://doi.org/10.3390/math11071744
Radivojević DS, Lazović I, Mirkov NS, Ramadani U, Nikezić DP. A Comparative Evaluation of Self-Attention Mechanism with ConvLSTM Model for Global Aerosol Time Series Forecasting. in Mathematics. 2023;11(7):1744.
doi:10.3390/math11071744 .
Radivojević, Dušan S., Lazović, Ivan, Mirkov, Nikola S., Ramadani, Uzahir, Nikezić, Dušan P., "A Comparative Evaluation of Self-Attention Mechanism with ConvLSTM Model for Global Aerosol Time Series Forecasting" in Mathematics, 11, no. 7 (2023):1744,
https://doi.org/10.3390/math11071744 . .
1

Possibility of Harmless Utilization of CRT Waste Glass in the Art Field

Miljojčić, Tatjana; Jelić, Ivana V.; Nikezić, Dušan; Šljivić-Ivanović, Marija Z.; Dimović, Slavko; Ramadani, Uzahir; Savić, Aleksandar

(Bor : University of Belgrade, Technical Faculty, 2023)

TY  - CONF
AU  - Miljojčić, Tatjana
AU  - Jelić, Ivana V.
AU  - Nikezić, Dušan
AU  - Šljivić-Ivanović, Marija Z.
AU  - Dimović, Slavko
AU  - Ramadani, Uzahir
AU  - Savić, Aleksandar
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11447
AB  - Elevation in the electronics industry has experienced a significant increase in the amount of waste generated, resulting in the generation of a substantial amount of electrical waste (E-waste). The excessive usage and production of cathode-ray tubes (CRT), a critical component of older monitors and screens, has become a significant environmental issue globally over the past few decades. With the advent of novel technologies, CRTs have been almost entirely replaced. It is now essential to develop new and renewable methods to manage CRT glass waste. The reuse of CRT waste glass for the manufacturing of new products or as an admixture to existing ones presents a significant opportunity, and thus it is obligatory to find contemporary ways to recycle this waste. Grounded CRT waste glass has been found to have a positive impact when used as a fine aggregate, but it is classified as hazardous due to its high lead content. However, after comprehensive series of cleaning and grinding the utilization of CRT glass can be beneficial in various fields. This paper focuses on reviewing recent developments related to the reuse of CRTs, and the aim is to evaluate the feasibility of its safe application in the art field.
PB  - Bor : University of Belgrade, Technical Faculty
C3  - 19th International May Conference on Strategic Management - IMCSM23 : Proceedings ; May, 25 ; Bor
T1  - Possibility of Harmless Utilization of CRT Waste Glass in the Art Field
VL  - 19
IS  - 1
SP  - 226
EP  - 231
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11447
ER  - 
@conference{
author = "Miljojčić, Tatjana and Jelić, Ivana V. and Nikezić, Dušan and Šljivić-Ivanović, Marija Z. and Dimović, Slavko and Ramadani, Uzahir and Savić, Aleksandar",
year = "2023",
abstract = "Elevation in the electronics industry has experienced a significant increase in the amount of waste generated, resulting in the generation of a substantial amount of electrical waste (E-waste). The excessive usage and production of cathode-ray tubes (CRT), a critical component of older monitors and screens, has become a significant environmental issue globally over the past few decades. With the advent of novel technologies, CRTs have been almost entirely replaced. It is now essential to develop new and renewable methods to manage CRT glass waste. The reuse of CRT waste glass for the manufacturing of new products or as an admixture to existing ones presents a significant opportunity, and thus it is obligatory to find contemporary ways to recycle this waste. Grounded CRT waste glass has been found to have a positive impact when used as a fine aggregate, but it is classified as hazardous due to its high lead content. However, after comprehensive series of cleaning and grinding the utilization of CRT glass can be beneficial in various fields. This paper focuses on reviewing recent developments related to the reuse of CRTs, and the aim is to evaluate the feasibility of its safe application in the art field.",
publisher = "Bor : University of Belgrade, Technical Faculty",
journal = "19th International May Conference on Strategic Management - IMCSM23 : Proceedings ; May, 25 ; Bor",
title = "Possibility of Harmless Utilization of CRT Waste Glass in the Art Field",
volume = "19",
number = "1",
pages = "226-231",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11447"
}
Miljojčić, T., Jelić, I. V., Nikezić, D., Šljivić-Ivanović, M. Z., Dimović, S., Ramadani, U.,& Savić, A.. (2023). Possibility of Harmless Utilization of CRT Waste Glass in the Art Field. in 19th International May Conference on Strategic Management - IMCSM23 : Proceedings ; May, 25 ; Bor
Bor : University of Belgrade, Technical Faculty., 19(1), 226-231.
https://hdl.handle.net/21.15107/rcub_vinar_11447
Miljojčić T, Jelić IV, Nikezić D, Šljivić-Ivanović MZ, Dimović S, Ramadani U, Savić A. Possibility of Harmless Utilization of CRT Waste Glass in the Art Field. in 19th International May Conference on Strategic Management - IMCSM23 : Proceedings ; May, 25 ; Bor. 2023;19(1):226-231.
https://hdl.handle.net/21.15107/rcub_vinar_11447 .
Miljojčić, Tatjana, Jelić, Ivana V., Nikezić, Dušan, Šljivić-Ivanović, Marija Z., Dimović, Slavko, Ramadani, Uzahir, Savić, Aleksandar, "Possibility of Harmless Utilization of CRT Waste Glass in the Art Field" in 19th International May Conference on Strategic Management - IMCSM23 : Proceedings ; May, 25 ; Bor, 19, no. 1 (2023):226-231,
https://hdl.handle.net/21.15107/rcub_vinar_11447 .

The efficiency of gas-filled surge arresters in the environment contaminated by non-ionizing radiation of fusion reactors

Aranđelović, Nemanja; Nikezić, Dušan P.; Ramadani, Uzahir; Lazović, Ivan; Mirkov, Nikola S.; Osmokrović, Predrag V.

(2022)

TY  - JOUR
AU  - Aranđelović, Nemanja
AU  - Nikezić, Dušan P.
AU  - Ramadani, Uzahir
AU  - Lazović, Ivan
AU  - Mirkov, Nikola S.
AU  - Osmokrović, Predrag V.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10435
AB  - The research presents an experiment with a model of an electronic generator for energy injection into the plasma of a fusion reactor. By recording a non-ionizing field in the vicinity of a fusion reactor, it was determined that this field has an extremely high growth rate. At the site of the maximum intensity of the field of non-ionizing radiation, commercial surge arresters with a flexible model of surge arresters were used for experimentation. It has been found that the commercial surge arresters have an efficiency of about 20%. For the efficiency of the flexible model, it was found to be slightly less than 40% (and to be achieved by the application of alpha particle radiation). Since neither of these efficiencies guarantee reliable operation of the gas-filled surge arrester, it was concluded that essential electronics in the vicinity of the fusion generator must be protected. However, since this protection can only be implemented in a fusion reactor, the fact remains that the environment of such a reactor is extremely contaminated with non-ionizing radiation. Commercial surge voltages are isolated for testing since the protection of electronic circuits from fast overvoltages is a critical point for the functioning of modern electronics.
T2  - Nuclear Technology and Radiation Protection
T1  - The efficiency of gas-filled surge arresters in the environment contaminated by non-ionizing radiation of fusion reactors
VL  - 37
IS  - 1
SP  - 51
EP  - 56
DO  - 10.2298/NTRP2201051A
ER  - 
@article{
author = "Aranđelović, Nemanja and Nikezić, Dušan P. and Ramadani, Uzahir and Lazović, Ivan and Mirkov, Nikola S. and Osmokrović, Predrag V.",
year = "2022",
abstract = "The research presents an experiment with a model of an electronic generator for energy injection into the plasma of a fusion reactor. By recording a non-ionizing field in the vicinity of a fusion reactor, it was determined that this field has an extremely high growth rate. At the site of the maximum intensity of the field of non-ionizing radiation, commercial surge arresters with a flexible model of surge arresters were used for experimentation. It has been found that the commercial surge arresters have an efficiency of about 20%. For the efficiency of the flexible model, it was found to be slightly less than 40% (and to be achieved by the application of alpha particle radiation). Since neither of these efficiencies guarantee reliable operation of the gas-filled surge arrester, it was concluded that essential electronics in the vicinity of the fusion generator must be protected. However, since this protection can only be implemented in a fusion reactor, the fact remains that the environment of such a reactor is extremely contaminated with non-ionizing radiation. Commercial surge voltages are isolated for testing since the protection of electronic circuits from fast overvoltages is a critical point for the functioning of modern electronics.",
journal = "Nuclear Technology and Radiation Protection",
title = "The efficiency of gas-filled surge arresters in the environment contaminated by non-ionizing radiation of fusion reactors",
volume = "37",
number = "1",
pages = "51-56",
doi = "10.2298/NTRP2201051A"
}
Aranđelović, N., Nikezić, D. P., Ramadani, U., Lazović, I., Mirkov, N. S.,& Osmokrović, P. V.. (2022). The efficiency of gas-filled surge arresters in the environment contaminated by non-ionizing radiation of fusion reactors. in Nuclear Technology and Radiation Protection, 37(1), 51-56.
https://doi.org/10.2298/NTRP2201051A
Aranđelović N, Nikezić DP, Ramadani U, Lazović I, Mirkov NS, Osmokrović PV. The efficiency of gas-filled surge arresters in the environment contaminated by non-ionizing radiation of fusion reactors. in Nuclear Technology and Radiation Protection. 2022;37(1):51-56.
doi:10.2298/NTRP2201051A .
Aranđelović, Nemanja, Nikezić, Dušan P., Ramadani, Uzahir, Lazović, Ivan, Mirkov, Nikola S., Osmokrović, Predrag V., "The efficiency of gas-filled surge arresters in the environment contaminated by non-ionizing radiation of fusion reactors" in Nuclear Technology and Radiation Protection, 37, no. 1 (2022):51-56,
https://doi.org/10.2298/NTRP2201051A . .
5
6

Deep Learning Model for Global Spatio-Temporal Image Prediction

Nikezić, Dušan P.; Ramadani, Uzahir; Radivojević, Dušan; Lazović, Ivan; Mirkov, Nikola S.

(2022)

TY  - JOUR
AU  - Nikezić, Dušan P.
AU  - Ramadani, Uzahir
AU  - Radivojević, Dušan
AU  - Lazović, Ivan
AU  - Mirkov, Nikola S.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10446
AB  - Mathematical methods are the basis of most models that describe the natural phenomena around us. However, the well-known conventional mathematical models for atmospheric modeling have some limitations. Machine learning with Big Data is also based on mathematics but offers a new approach for modeling. There are two methodologies to develop deep learning models for spatio-temporal image prediction. On these bases, two models were built—ConvLSTM and CNN-LSTM—with two types of predictions, i.e., sequence-to-sequence and sequence-to-one, in order to forecast Aerosol Optical Thickness sequences. The input dataset for training was NASA satellite imagery MODAL2_E_AER_OD from Terra/MODIS satellites, which presents global Aerosol Optical Thickness with an 8 day temporal resolution from 2000 to the present. The obtained results show that the ConvLSTM sequence-to-one model had the lowest RMSE error and the highest Cosine Similarity value. The advantages of the developed DL models are that they can be executed in milliseconds on a PC, can be used for global-scale Earth observations, and can serve as tracers to study how the Earth’s atmosphere moves. The developed models can be used as transfer learning for similar image time-series forecasting models.
T2  - Mathematics
T1  - Deep Learning Model for Global Spatio-Temporal Image Prediction
VL  - 10
IS  - 18
SP  - 3392
DO  - 10.3390/math10183392
ER  - 
@article{
author = "Nikezić, Dušan P. and Ramadani, Uzahir and Radivojević, Dušan and Lazović, Ivan and Mirkov, Nikola S.",
year = "2022",
abstract = "Mathematical methods are the basis of most models that describe the natural phenomena around us. However, the well-known conventional mathematical models for atmospheric modeling have some limitations. Machine learning with Big Data is also based on mathematics but offers a new approach for modeling. There are two methodologies to develop deep learning models for spatio-temporal image prediction. On these bases, two models were built—ConvLSTM and CNN-LSTM—with two types of predictions, i.e., sequence-to-sequence and sequence-to-one, in order to forecast Aerosol Optical Thickness sequences. The input dataset for training was NASA satellite imagery MODAL2_E_AER_OD from Terra/MODIS satellites, which presents global Aerosol Optical Thickness with an 8 day temporal resolution from 2000 to the present. The obtained results show that the ConvLSTM sequence-to-one model had the lowest RMSE error and the highest Cosine Similarity value. The advantages of the developed DL models are that they can be executed in milliseconds on a PC, can be used for global-scale Earth observations, and can serve as tracers to study how the Earth’s atmosphere moves. The developed models can be used as transfer learning for similar image time-series forecasting models.",
journal = "Mathematics",
title = "Deep Learning Model for Global Spatio-Temporal Image Prediction",
volume = "10",
number = "18",
pages = "3392",
doi = "10.3390/math10183392"
}
Nikezić, D. P., Ramadani, U., Radivojević, D., Lazović, I.,& Mirkov, N. S.. (2022). Deep Learning Model for Global Spatio-Temporal Image Prediction. in Mathematics, 10(18), 3392.
https://doi.org/10.3390/math10183392
Nikezić DP, Ramadani U, Radivojević D, Lazović I, Mirkov NS. Deep Learning Model for Global Spatio-Temporal Image Prediction. in Mathematics. 2022;10(18):3392.
doi:10.3390/math10183392 .
Nikezić, Dušan P., Ramadani, Uzahir, Radivojević, Dušan, Lazović, Ivan, Mirkov, Nikola S., "Deep Learning Model for Global Spatio-Temporal Image Prediction" in Mathematics, 10, no. 18 (2022):3392,
https://doi.org/10.3390/math10183392 . .
3
2

Comparison of Measurement Reliability of Nanosecond Rectangular Voltage Pulses by Kerr Effect and by High-Speed Voltage Probe

Aranđelović, Nemanja; Nikezić, Dušan P.; Brajović, Dragan; Ramadani, Uzahir

(2022)

TY  - JOUR
AU  - Aranđelović, Nemanja
AU  - Nikezić, Dušan P.
AU  - Brajović, Dragan
AU  - Ramadani, Uzahir
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10261
AB  - Recently, the idea of injecting energy with electromagnetic radiation in order to heat the plasma to achieve controlled fusion has been abandoned. This initially favored mechanism was rejected because it has been shown that after a certain temperature the plasma glows and acts as a mirror that reflects electromagnetic radiation. For that reason, today the energy is injected into the plasma by electrons. For this purpose, pulses from several electron beam generators, based on a Marx generator, are synchronously fired into the plasma. In addition to economic problems, the biggest problem of this method is the appearance of jitter, i.e., pulses with a width of about 5 ns are not simply added up but propagated in time due to the impossibility of synchronizing simultaneous triggering of the multiple electronic generators. In order to avoid this, the possibility of monitoring the pulses from an individual electron beam generator for the purpose of online synchronization is investigated in this paper. The voltage pulse monitoring of the electron beam generator was measured by instruments with the fastest response—the electro-optical Kerr effect and a fast capacitive probe. The obtained results showed that the electro-optical Kerr response is somewhat faster but much more complicated, so the use of fast capacitive probes is recommended for practice.
T2  - Fusion Science and Technology
T1  - Comparison of Measurement Reliability of Nanosecond Rectangular Voltage Pulses by Kerr Effect and by High-Speed Voltage Probe
SP  - 1
EP  - 10
DO  - 10.1080/15361055.2022.2031690
ER  - 
@article{
author = "Aranđelović, Nemanja and Nikezić, Dušan P. and Brajović, Dragan and Ramadani, Uzahir",
year = "2022",
abstract = "Recently, the idea of injecting energy with electromagnetic radiation in order to heat the plasma to achieve controlled fusion has been abandoned. This initially favored mechanism was rejected because it has been shown that after a certain temperature the plasma glows and acts as a mirror that reflects electromagnetic radiation. For that reason, today the energy is injected into the plasma by electrons. For this purpose, pulses from several electron beam generators, based on a Marx generator, are synchronously fired into the plasma. In addition to economic problems, the biggest problem of this method is the appearance of jitter, i.e., pulses with a width of about 5 ns are not simply added up but propagated in time due to the impossibility of synchronizing simultaneous triggering of the multiple electronic generators. In order to avoid this, the possibility of monitoring the pulses from an individual electron beam generator for the purpose of online synchronization is investigated in this paper. The voltage pulse monitoring of the electron beam generator was measured by instruments with the fastest response—the electro-optical Kerr effect and a fast capacitive probe. The obtained results showed that the electro-optical Kerr response is somewhat faster but much more complicated, so the use of fast capacitive probes is recommended for practice.",
journal = "Fusion Science and Technology",
title = "Comparison of Measurement Reliability of Nanosecond Rectangular Voltage Pulses by Kerr Effect and by High-Speed Voltage Probe",
pages = "1-10",
doi = "10.1080/15361055.2022.2031690"
}
Aranđelović, N., Nikezić, D. P., Brajović, D.,& Ramadani, U.. (2022). Comparison of Measurement Reliability of Nanosecond Rectangular Voltage Pulses by Kerr Effect and by High-Speed Voltage Probe. in Fusion Science and Technology, 1-10.
https://doi.org/10.1080/15361055.2022.2031690
Aranđelović N, Nikezić DP, Brajović D, Ramadani U. Comparison of Measurement Reliability of Nanosecond Rectangular Voltage Pulses by Kerr Effect and by High-Speed Voltage Probe. in Fusion Science and Technology. 2022;:1-10.
doi:10.1080/15361055.2022.2031690 .
Aranđelović, Nemanja, Nikezić, Dušan P., Brajović, Dragan, Ramadani, Uzahir, "Comparison of Measurement Reliability of Nanosecond Rectangular Voltage Pulses by Kerr Effect and by High-Speed Voltage Probe" in Fusion Science and Technology (2022):1-10,
https://doi.org/10.1080/15361055.2022.2031690 . .
2
2

Sustainable Utilization of Cathode-Ray Tube Waste Glass in Cementitious Materials – A Review

Miljojčić, Tatjana; Jelić, Ivana V.; Šljivić-Ivanović, Marija Z.; Dimović, Slavko; Ramadani, Uzahir

(Bor : University of Belgrade, Technical Faculty, 2022)

TY  - CONF
AU  - Miljojčić, Tatjana
AU  - Jelić, Ivana V.
AU  - Šljivić-Ivanović, Marija Z.
AU  - Dimović, Slavko
AU  - Ramadani, Uzahir
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12848
AB  - The advances in the electronic industry have led to a generation of an extensive amount of electrical waste (E-waste) before the end of its proper life span. Excessive usage and production of cathode-ray tubes (CRT), which is the fundamental part of old monitors and screens, has become an immense problem worldwide regarding the environmental issues, since the last few decades thin-film transistors (TFT) and liquid crystal display (LCD) replaced CRTs almost entirely. Consequently, it is of crucial importance to expand and deploy new, renewable methods to manage CRT glass waste. There is an appreciable prospective to use CRT waste glass for new products manufacture, or as an admixture to existing ones, hence the requirement for reusing this kind of waste is favorable. Many investigations have confirmed the positive effect of using grounded CRT waste glass as a fine aggregate. However, this waste is classified as hazardous due to the high lead content. Mixing CRT glass with mortar constructively decreases the amount of cement consumption. Features of this paper relate to a review of recent developments regarding the reuse of CRTs in cementitious materials. Emphasis was placed on their physico-mechanical properties to evaluate the possibility of CRT usage in mortar mixtures.
PB  - Bor : University of Belgrade, Technical Faculty
C3  - EcoTER’22 : 29th International Conference Ecological Truth and Environmental Research : Proceedings
T1  - Sustainable Utilization of Cathode-Ray Tube Waste Glass in Cementitious Materials – A Review
SP  - 465
EP  - 470
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12848
ER  - 
@conference{
author = "Miljojčić, Tatjana and Jelić, Ivana V. and Šljivić-Ivanović, Marija Z. and Dimović, Slavko and Ramadani, Uzahir",
year = "2022",
abstract = "The advances in the electronic industry have led to a generation of an extensive amount of electrical waste (E-waste) before the end of its proper life span. Excessive usage and production of cathode-ray tubes (CRT), which is the fundamental part of old monitors and screens, has become an immense problem worldwide regarding the environmental issues, since the last few decades thin-film transistors (TFT) and liquid crystal display (LCD) replaced CRTs almost entirely. Consequently, it is of crucial importance to expand and deploy new, renewable methods to manage CRT glass waste. There is an appreciable prospective to use CRT waste glass for new products manufacture, or as an admixture to existing ones, hence the requirement for reusing this kind of waste is favorable. Many investigations have confirmed the positive effect of using grounded CRT waste glass as a fine aggregate. However, this waste is classified as hazardous due to the high lead content. Mixing CRT glass with mortar constructively decreases the amount of cement consumption. Features of this paper relate to a review of recent developments regarding the reuse of CRTs in cementitious materials. Emphasis was placed on their physico-mechanical properties to evaluate the possibility of CRT usage in mortar mixtures.",
publisher = "Bor : University of Belgrade, Technical Faculty",
journal = "EcoTER’22 : 29th International Conference Ecological Truth and Environmental Research : Proceedings",
title = "Sustainable Utilization of Cathode-Ray Tube Waste Glass in Cementitious Materials – A Review",
pages = "465-470",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12848"
}
Miljojčić, T., Jelić, I. V., Šljivić-Ivanović, M. Z., Dimović, S.,& Ramadani, U.. (2022). Sustainable Utilization of Cathode-Ray Tube Waste Glass in Cementitious Materials – A Review. in EcoTER’22 : 29th International Conference Ecological Truth and Environmental Research : Proceedings
Bor : University of Belgrade, Technical Faculty., 465-470.
https://hdl.handle.net/21.15107/rcub_vinar_12848
Miljojčić T, Jelić IV, Šljivić-Ivanović MZ, Dimović S, Ramadani U. Sustainable Utilization of Cathode-Ray Tube Waste Glass in Cementitious Materials – A Review. in EcoTER’22 : 29th International Conference Ecological Truth and Environmental Research : Proceedings. 2022;:465-470.
https://hdl.handle.net/21.15107/rcub_vinar_12848 .
Miljojčić, Tatjana, Jelić, Ivana V., Šljivić-Ivanović, Marija Z., Dimović, Slavko, Ramadani, Uzahir, "Sustainable Utilization of Cathode-Ray Tube Waste Glass in Cementitious Materials – A Review" in EcoTER’22 : 29th International Conference Ecological Truth and Environmental Research : Proceedings (2022):465-470,
https://hdl.handle.net/21.15107/rcub_vinar_12848 .

Influence of gamma radiation on measurement fast pulse voltages by Kerr electro-optic effect

Aranđelović, Nemanja; Nikezić, Dušan P.; Brajović, Dragan; Ramadani, Uzahir

(2021)

TY  - JOUR
AU  - Aranđelović, Nemanja
AU  - Nikezić, Dušan P.
AU  - Brajović, Dragan
AU  - Ramadani, Uzahir
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9876
AB  - In this paper, the possibility of measuring the electronic pulse from an electronic generator for plasma heating by electro-optical method is considered. The experiments are performed by applying the Kerr effect on an electronic generator model. Kerr effect shows very good characteristics for measuring nanosecond pulse rate. However, the results obtained show that these characteristics are significantly spoiled by gamma radiation in a dynamic state as well as by the absorbed dose of gamma radiation. When the simplicity of measuring with a capacitive probe is added to that, it can be concluded that the Kerr electro-optical effect is not recommended for measurement in fusion experiments.
T2  - Radiation Effects and Defects in Solids
T1  - Influence of gamma radiation on measurement fast pulse voltages by Kerr electro-optic effect
VL  - 176
IS  - 7-8
SP  - 747
EP  - 757
DO  - 10.1080/10420150.2021.1950153
ER  - 
@article{
author = "Aranđelović, Nemanja and Nikezić, Dušan P. and Brajović, Dragan and Ramadani, Uzahir",
year = "2021",
abstract = "In this paper, the possibility of measuring the electronic pulse from an electronic generator for plasma heating by electro-optical method is considered. The experiments are performed by applying the Kerr effect on an electronic generator model. Kerr effect shows very good characteristics for measuring nanosecond pulse rate. However, the results obtained show that these characteristics are significantly spoiled by gamma radiation in a dynamic state as well as by the absorbed dose of gamma radiation. When the simplicity of measuring with a capacitive probe is added to that, it can be concluded that the Kerr electro-optical effect is not recommended for measurement in fusion experiments.",
journal = "Radiation Effects and Defects in Solids",
title = "Influence of gamma radiation on measurement fast pulse voltages by Kerr electro-optic effect",
volume = "176",
number = "7-8",
pages = "747-757",
doi = "10.1080/10420150.2021.1950153"
}
Aranđelović, N., Nikezić, D. P., Brajović, D.,& Ramadani, U.. (2021). Influence of gamma radiation on measurement fast pulse voltages by Kerr electro-optic effect. in Radiation Effects and Defects in Solids, 176(7-8), 747-757.
https://doi.org/10.1080/10420150.2021.1950153
Aranđelović N, Nikezić DP, Brajović D, Ramadani U. Influence of gamma radiation on measurement fast pulse voltages by Kerr electro-optic effect. in Radiation Effects and Defects in Solids. 2021;176(7-8):747-757.
doi:10.1080/10420150.2021.1950153 .
Aranđelović, Nemanja, Nikezić, Dušan P., Brajović, Dragan, Ramadani, Uzahir, "Influence of gamma radiation on measurement fast pulse voltages by Kerr electro-optic effect" in Radiation Effects and Defects in Solids, 176, no. 7-8 (2021):747-757,
https://doi.org/10.1080/10420150.2021.1950153 . .
2
2

Possibility of application nuclear magnetic resonance for measurement of fluid-flow

Kartalović, Nenad M.; Đekić, Saška D.; Đekić, Saša B.; Nikezić, Dušan P.; Ramadani, Uzahir

(2021)

TY  - JOUR
AU  - Kartalović, Nenad M.
AU  - Đekić, Saška D.
AU  - Đekić, Saša B.
AU  - Nikezić, Dušan P.
AU  - Ramadani, Uzahir
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10067
AB  - The paper considers the application of nuclear magnetic resonance for measurement of fluid-flow. The paper is of an experimental nature. Flowmeter based on nuclear magnetic resonance is extremely precise. The combined measurement uncertainty can be 0.1 %. Such a value of measurement uncertainty indicates that it is a matter of a deterministic and not of a stochastic quantity. This high degree of reliability of the method is theoretically and mathematically described. The paper presents a measurement scheme for flow measurement. Water flow measurement was performed on the principle of nuclear magnetic resonance and on the basis of tritiated water (which is considered to be the most accurate classical method). The obtained results show that the measurement of flow based on nuclear magnetic resonance is more accurate (especially at higher flow). This is explained by the higher inertial mass of HTO tritiated water molecules than the standard H2 O mass and the possible transition of tritiated water to H3HeO. In this way, it has been proven that tracing water based on nuclear magnetic resonance is the only real tracing of water by water. The obtained results show that tracing water with tritiated or heavy water is not tracing water by water which is explained by different inertial masses.
T2  - Nuclear Technology and Radiation Protection
T1  - Possibility of application nuclear magnetic resonance for measurement of fluid-flow
VL  - 36
IS  - 2
SP  - 168
EP  - 173
DO  - 10.2298/NTRP210614017K
ER  - 
@article{
author = "Kartalović, Nenad M. and Đekić, Saška D. and Đekić, Saša B. and Nikezić, Dušan P. and Ramadani, Uzahir",
year = "2021",
abstract = "The paper considers the application of nuclear magnetic resonance for measurement of fluid-flow. The paper is of an experimental nature. Flowmeter based on nuclear magnetic resonance is extremely precise. The combined measurement uncertainty can be 0.1 %. Such a value of measurement uncertainty indicates that it is a matter of a deterministic and not of a stochastic quantity. This high degree of reliability of the method is theoretically and mathematically described. The paper presents a measurement scheme for flow measurement. Water flow measurement was performed on the principle of nuclear magnetic resonance and on the basis of tritiated water (which is considered to be the most accurate classical method). The obtained results show that the measurement of flow based on nuclear magnetic resonance is more accurate (especially at higher flow). This is explained by the higher inertial mass of HTO tritiated water molecules than the standard H2 O mass and the possible transition of tritiated water to H3HeO. In this way, it has been proven that tracing water based on nuclear magnetic resonance is the only real tracing of water by water. The obtained results show that tracing water with tritiated or heavy water is not tracing water by water which is explained by different inertial masses.",
journal = "Nuclear Technology and Radiation Protection",
title = "Possibility of application nuclear magnetic resonance for measurement of fluid-flow",
volume = "36",
number = "2",
pages = "168-173",
doi = "10.2298/NTRP210614017K"
}
Kartalović, N. M., Đekić, S. D., Đekić, S. B., Nikezić, D. P.,& Ramadani, U.. (2021). Possibility of application nuclear magnetic resonance for measurement of fluid-flow. in Nuclear Technology and Radiation Protection, 36(2), 168-173.
https://doi.org/10.2298/NTRP210614017K
Kartalović NM, Đekić SD, Đekić SB, Nikezić DP, Ramadani U. Possibility of application nuclear magnetic resonance for measurement of fluid-flow. in Nuclear Technology and Radiation Protection. 2021;36(2):168-173.
doi:10.2298/NTRP210614017K .
Kartalović, Nenad M., Đekić, Saška D., Đekić, Saša B., Nikezić, Dušan P., Ramadani, Uzahir, "Possibility of application nuclear magnetic resonance for measurement of fluid-flow" in Nuclear Technology and Radiation Protection, 36, no. 2 (2021):168-173,
https://doi.org/10.2298/NTRP210614017K . .
6
7

In fluence of gamma radiation on Josephson junction

Kartalović, Nenad M.; Đekić, Saška D.; Đekić, Saša B.; Ramadani, Uzahir; Nikezić, Dušan P.

(2021)

TY  - JOUR
AU  - Kartalović, Nenad M.
AU  - Đekić, Saška D.
AU  - Đekić, Saša B.
AU  - Ramadani, Uzahir
AU  - Nikezić, Dušan P.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10438
AB  - Quantum mechanics consideration, supported by a concrete example, yielded standard sources of di rect volt age mea sured by frequency (which is the most ac cu rate measur able phys-ical quantity) and extremely sensitive instrument for measuring magnetic induction SQUID (which is an ac ro nym based on the term Supercon duct ing Quan tum Inter fer ence Device). The pos sibility of these mea sure ments is based on the Josephson junc tion. In this paper, the in flu ence of gamma ra diation on the mea sure ment un cer tainty Type A, of a com mercial Josephson compound, is investi gated. The conclu sion is that both dy namic gamma radiation and the dose of gamma ra di ation, un der the con ditions of the ex per iment, have a neg ligible ef-fect on the mea sure ment uncer tainty of the Josephson junc tion. Based on the ob tained re sult, it was con cluded that in the primary metrological con di tions, the mea sure ment un cer tainty type A of the Josephson junc tion is neg ligible, i. e., that the secondary cosmic radiation does not af fect the stan dard of the DC volt age source. © 2021, Vinca Inst Nuclear Sci. All rights reserved.
T2  - Nuclear Technology and Radiation Protection
T1  - In fluence of gamma radiation on Josephson junction
VL  - 36
IS  - 4
SP  - 352
EP  - 357
DO  - 10.2298/NTRP2104352K
ER  - 
@article{
author = "Kartalović, Nenad M. and Đekić, Saška D. and Đekić, Saša B. and Ramadani, Uzahir and Nikezić, Dušan P.",
year = "2021",
abstract = "Quantum mechanics consideration, supported by a concrete example, yielded standard sources of di rect volt age mea sured by frequency (which is the most ac cu rate measur able phys-ical quantity) and extremely sensitive instrument for measuring magnetic induction SQUID (which is an ac ro nym based on the term Supercon duct ing Quan tum Inter fer ence Device). The pos sibility of these mea sure ments is based on the Josephson junc tion. In this paper, the in flu ence of gamma ra diation on the mea sure ment un cer tainty Type A, of a com mercial Josephson compound, is investi gated. The conclu sion is that both dy namic gamma radiation and the dose of gamma ra di ation, un der the con ditions of the ex per iment, have a neg ligible ef-fect on the mea sure ment uncer tainty of the Josephson junc tion. Based on the ob tained re sult, it was con cluded that in the primary metrological con di tions, the mea sure ment un cer tainty type A of the Josephson junc tion is neg ligible, i. e., that the secondary cosmic radiation does not af fect the stan dard of the DC volt age source. © 2021, Vinca Inst Nuclear Sci. All rights reserved.",
journal = "Nuclear Technology and Radiation Protection",
title = "In fluence of gamma radiation on Josephson junction",
volume = "36",
number = "4",
pages = "352-357",
doi = "10.2298/NTRP2104352K"
}
Kartalović, N. M., Đekić, S. D., Đekić, S. B., Ramadani, U.,& Nikezić, D. P.. (2021). In fluence of gamma radiation on Josephson junction. in Nuclear Technology and Radiation Protection, 36(4), 352-357.
https://doi.org/10.2298/NTRP2104352K
Kartalović NM, Đekić SD, Đekić SB, Ramadani U, Nikezić DP. In fluence of gamma radiation on Josephson junction. in Nuclear Technology and Radiation Protection. 2021;36(4):352-357.
doi:10.2298/NTRP2104352K .
Kartalović, Nenad M., Đekić, Saška D., Đekić, Saša B., Ramadani, Uzahir, Nikezić, Dušan P., "In fluence of gamma radiation on Josephson junction" in Nuclear Technology and Radiation Protection, 36, no. 4 (2021):352-357,
https://doi.org/10.2298/NTRP2104352K . .
2
2

Passive and active shielding against electromagnetic radiation

Đekić, Saša B.; Nikezić, Dušan P.; Brajović, Dragan; Kartalović, Nenad M.; Ramadani, Uzahir

(2020)

TY  - JOUR
AU  - Đekić, Saša B.
AU  - Nikezić, Dušan P.
AU  - Brajović, Dragan
AU  - Kartalović, Nenad M.
AU  - Ramadani, Uzahir
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9165
AB  - In nuclear physics experiments, it is very important to isolate the measured quantities from electromagnetic noise. Without this possibility, it is impossible to obtain usable experimental results since natural electromagnetic noise can be several orders of magnitude larger than the measured magnitude. In order to enable such measurements, it is necessary to eliminate electromagnetic noise from the experimental procedure. This is achieved by shielding against electromagnetic radiation. In this paper, experiments were performed to protect a room from electromagnetic noise. By applying all known methods of shielding against electromagnetic radiation, it was concluded that the room can be protected from the electrical component, but it is impossible to protect it from the magnetic component of electromagnetic radiation.
T2  - Nuclear Technology and Radiation Protection
T1  - Passive and active shielding against electromagnetic radiation
VL  - 35
IS  - 4
SP  - 331
EP  - 338
DO  - 10.2298/NTRP2004331D
ER  - 
@article{
author = "Đekić, Saša B. and Nikezić, Dušan P. and Brajović, Dragan and Kartalović, Nenad M. and Ramadani, Uzahir",
year = "2020",
abstract = "In nuclear physics experiments, it is very important to isolate the measured quantities from electromagnetic noise. Without this possibility, it is impossible to obtain usable experimental results since natural electromagnetic noise can be several orders of magnitude larger than the measured magnitude. In order to enable such measurements, it is necessary to eliminate electromagnetic noise from the experimental procedure. This is achieved by shielding against electromagnetic radiation. In this paper, experiments were performed to protect a room from electromagnetic noise. By applying all known methods of shielding against electromagnetic radiation, it was concluded that the room can be protected from the electrical component, but it is impossible to protect it from the magnetic component of electromagnetic radiation.",
journal = "Nuclear Technology and Radiation Protection",
title = "Passive and active shielding against electromagnetic radiation",
volume = "35",
number = "4",
pages = "331-338",
doi = "10.2298/NTRP2004331D"
}
Đekić, S. B., Nikezić, D. P., Brajović, D., Kartalović, N. M.,& Ramadani, U.. (2020). Passive and active shielding against electromagnetic radiation. in Nuclear Technology and Radiation Protection, 35(4), 331-338.
https://doi.org/10.2298/NTRP2004331D
Đekić SB, Nikezić DP, Brajović D, Kartalović NM, Ramadani U. Passive and active shielding against electromagnetic radiation. in Nuclear Technology and Radiation Protection. 2020;35(4):331-338.
doi:10.2298/NTRP2004331D .
Đekić, Saša B., Nikezić, Dušan P., Brajović, Dragan, Kartalović, Nenad M., Ramadani, Uzahir, "Passive and active shielding against electromagnetic radiation" in Nuclear Technology and Radiation Protection, 35, no. 4 (2020):331-338,
https://doi.org/10.2298/NTRP2004331D . .
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