TY  - CONF
AU  - Davidović, Miloš
AU  - Kleut, Duška
AU  - Davidović, Milena D.
AU  - Stojanović, Danka B.
AU  - Jovašević-Stojanović, Milena
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13046
AB  - Atmospheric aerosols in urban areas typically consist of particles of different diameters, which can range in size from a few nanometers to a few micrometers and can have a strong impact on human health [1,2]. This motivates the need to measure aerosol concentration accurately, but it is often also necessary to combine results from several instruments, with fundamentally different measurement principles. In this work, methods based on the measurement of the electrical mobility of particles, for the range of diameters from 10nm to 420nm, and the measurement of the equivalent optical diameter, for the range of diameters from 300nm to 10um, were used. Combining the overlapping region in two size distribution spectra can be used to infer equivalent optical properties of the ambient aerosol, and examples of measured and combined spectra in several urban hot spots in Bay of Kotor are analyzed in some detail. These examples will illustrate several aspects of urban aerosol properties not readily available in a typical regulatory monitoring setting, such as distribution of modes in number and mass concentration, as well as optical properties of measured aerosol.  As the main result, examples of combining particle size spectrums are presented. In the process of combining the particle size spectra, it is possible to modify the distribution obtained by optical measurements by searching for the optimal value of the refractive index of the particles to obtain the best possible agreement with the size distribution obtained by measuring the electrical mobility. An equivalent refractive index as well as the equivalent shape factor of the ambient aerosol is obtained using Mie scattering theory as a theoretical framework [3]. The measurement results from the mobile monitoring campaign in Bay of Kotor in 2017 were used to elucidate the main principles of size spectrum combination, as well as to showcase diversity of equivalent optical properties of urban aerosols.
PB  - Belgrade : Institute of Physics
C3  - 16th Photonics Workshop : Book of abstracts
T1  - Combining size distribution spectrums of ambient aerosols using equivalent optical properties of nanosized particles – selected examples from the Bay of Kotor
SP  - 26
EP  - 26
UR  - https://hdl.handle.net/21.15107/rcub_vinar_13046
ER  - 

@conference{
author = "Davidović, Miloš and Kleut, Duška and Davidović, Milena D. and Stojanović, Danka B. and Jovašević-Stojanović, Milena",
year = "2023",
abstract = "Atmospheric aerosols in urban areas typically consist of particles of different diameters, which can range in size from a few nanometers to a few micrometers and can have a strong impact on human health [1,2]. This motivates the need to measure aerosol concentration accurately, but it is often also necessary to combine results from several instruments, with fundamentally different measurement principles. In this work, methods based on the measurement of the electrical mobility of particles, for the range of diameters from 10nm to 420nm, and the measurement of the equivalent optical diameter, for the range of diameters from 300nm to 10um, were used. Combining the overlapping region in two size distribution spectra can be used to infer equivalent optical properties of the ambient aerosol, and examples of measured and combined spectra in several urban hot spots in Bay of Kotor are analyzed in some detail. These examples will illustrate several aspects of urban aerosol properties not readily available in a typical regulatory monitoring setting, such as distribution of modes in number and mass concentration, as well as optical properties of measured aerosol.  As the main result, examples of combining particle size spectrums are presented. In the process of combining the particle size spectra, it is possible to modify the distribution obtained by optical measurements by searching for the optimal value of the refractive index of the particles to obtain the best possible agreement with the size distribution obtained by measuring the electrical mobility. An equivalent refractive index as well as the equivalent shape factor of the ambient aerosol is obtained using Mie scattering theory as a theoretical framework [3]. The measurement results from the mobile monitoring campaign in Bay of Kotor in 2017 were used to elucidate the main principles of size spectrum combination, as well as to showcase diversity of equivalent optical properties of urban aerosols.",
publisher = "Belgrade : Institute of Physics",
journal = "16th Photonics Workshop : Book of abstracts",
title = "Combining size distribution spectrums of ambient aerosols using equivalent optical properties of nanosized particles – selected examples from the Bay of Kotor",
pages = "26-26",
url = "https://hdl.handle.net/21.15107/rcub_vinar_13046"
}

Davidović, M., Kleut, D., Davidović, M. D., Stojanović, D. B.,& Jovašević-Stojanović, M.. (2023). Combining size distribution spectrums of ambient aerosols using equivalent optical properties of nanosized particles – selected examples from the Bay of Kotor. in 16th Photonics Workshop : Book of abstracts
Belgrade : Institute of Physics., 26-26.
https://hdl.handle.net/21.15107/rcub_vinar_13046

Davidović M, Kleut D, Davidović MD, Stojanović DB, Jovašević-Stojanović M. Combining size distribution spectrums of ambient aerosols using equivalent optical properties of nanosized particles – selected examples from the Bay of Kotor. in 16th Photonics Workshop : Book of abstracts. 2023;:26-26.
https://hdl.handle.net/21.15107/rcub_vinar_13046 .

Davidović, Miloš, Kleut, Duška, Davidović, Milena D., Stojanović, Danka B., Jovašević-Stojanović, Milena, "Combining size distribution spectrums of ambient aerosols using equivalent optical properties of nanosized particles – selected examples from the Bay of Kotor" in 16th Photonics Workshop : Book of abstracts (2023):26-26,
https://hdl.handle.net/21.15107/rcub_vinar_13046 .

TY  - CONF
AU  - Stojanović, Danka B.
AU  - Kleut, Duška
AU  - Davidović, Miloš
AU  - Lepioufle, Jean-Marie
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13047
AB  - Particulate matter (PM) in air has been proven to be hazardous to human health. Until recently, monitoring of air quality has been done by professional agencies. Nowadays, the availability of portable, low cost microsensor devices and the exponential growth of IoT (Internet of Things) in everyday life has enabled widespread monitoring of air quality among all citizens.[1]. For PM measurements, optical sensors measure light scattering by particles carried in an air stream through a light beam, which is converted by computation to equivalent mass concentration. Light scattering is strongly affected by parameters such as particle density, particle hygroscopicity, refraction index, and particle composition [2]. In this study, we measured PM 2.5 by seven AQ MESH low-cost optical sensors and compared the measured data with the ones obtained from the reference monitoring station (SEPA). Could we, by a sequence of low-processing data enrichment and a simple calibration method, reach an accuracy as close as a calibration based on machine learning? To answer this question, we used low-processing data enrichment such as resampling, encoding periodic timerelated features and making a composition of the initial low-cost signal at different time scales. We compared two algorithms for the calibration: multivariate linear regression and random forest. The results gave promising results and encouraged us in researching further about signal low-processing to achieve the required quality of data from low-cost sensor devices monitoring air quality [3].
PB  - Belgrade : Institute of Physics
C3  - 16th Photonics Workshop : Book of abstracts
T1  - Data enrichment and calibration for PM 2.5 low-cost optical sensors
SP  - 40
EP  - 40
UR  - https://hdl.handle.net/21.15107/rcub_vinar_13047
ER  - 

@conference{
author = "Stojanović, Danka B. and Kleut, Duška and Davidović, Miloš and Lepioufle, Jean-Marie",
year = "2023",
abstract = "Particulate matter (PM) in air has been proven to be hazardous to human health. Until recently, monitoring of air quality has been done by professional agencies. Nowadays, the availability of portable, low cost microsensor devices and the exponential growth of IoT (Internet of Things) in everyday life has enabled widespread monitoring of air quality among all citizens.[1]. For PM measurements, optical sensors measure light scattering by particles carried in an air stream through a light beam, which is converted by computation to equivalent mass concentration. Light scattering is strongly affected by parameters such as particle density, particle hygroscopicity, refraction index, and particle composition [2]. In this study, we measured PM 2.5 by seven AQ MESH low-cost optical sensors and compared the measured data with the ones obtained from the reference monitoring station (SEPA). Could we, by a sequence of low-processing data enrichment and a simple calibration method, reach an accuracy as close as a calibration based on machine learning? To answer this question, we used low-processing data enrichment such as resampling, encoding periodic timerelated features and making a composition of the initial low-cost signal at different time scales. We compared two algorithms for the calibration: multivariate linear regression and random forest. The results gave promising results and encouraged us in researching further about signal low-processing to achieve the required quality of data from low-cost sensor devices monitoring air quality [3].",
publisher = "Belgrade : Institute of Physics",
journal = "16th Photonics Workshop : Book of abstracts",
title = "Data enrichment and calibration for PM 2.5 low-cost optical sensors",
pages = "40-40",
url = "https://hdl.handle.net/21.15107/rcub_vinar_13047"
}

Stojanović, D. B., Kleut, D., Davidović, M.,& Lepioufle, J.. (2023). Data enrichment and calibration for PM 2.5 low-cost optical sensors. in 16th Photonics Workshop : Book of abstracts
Belgrade : Institute of Physics., 40-40.
https://hdl.handle.net/21.15107/rcub_vinar_13047

Stojanović DB, Kleut D, Davidović M, Lepioufle J. Data enrichment and calibration for PM 2.5 low-cost optical sensors. in 16th Photonics Workshop : Book of abstracts. 2023;:40-40.
https://hdl.handle.net/21.15107/rcub_vinar_13047 .

Stojanović, Danka B., Kleut, Duška, Davidović, Miloš, Lepioufle, Jean-Marie, "Data enrichment and calibration for PM 2.5 low-cost optical sensors" in 16th Photonics Workshop : Book of abstracts (2023):40-40,
https://hdl.handle.net/21.15107/rcub_vinar_13047 .

TY  - JOUR
AU  - De Vito, Saverio
AU  - D’Elia, Gerardo
AU  - Ferlito, Sergio
AU  - Di Francia, Girolamo
AU  - Davidović, Miloš
AU  - Kleut, Duška
AU  - Stojanović, Danka
AU  - Jovašević-Stojanović, Milena
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12046
AB  - Scalable and effective calibration is a fundamental requirement for Low Cost Air Quality Monitoring Systems and will enable accurate and pervasive monitoring in cities. Suffering from environmental interferences and fabrication variance, these devices need to encompass sensors specific and complex calibration processes for reaching a sufficient accuracy to be deployed as indicative measurement devices in Air Quality (AQ) monitoring networks. Concept and sensor drift often force calibration process to be frequently repeated. These issues lead to unbearable calibration costs which denies their massive deployment when accuracy is a concern. In this work, We propose a zero transfer samples, global calibration methodology as a technological enabler for IoT AQ multisensory devices which relies on low cost Particulate Matter (PM) sensors. This methodology is based on field recorded responses from a limited number of IoT AQ multisensors units and machine learning concepts and can be universally applied to all units of the same type. A multi season test campaign shown that, when applied to different sensors, this methodology performances match those of state of the art methodology which requires to derive different calibration parameters for each different unit. If confirmed, these results show that, when properly derived, a global calibration law can be exploited for a large number of networked devices with dramatic cost reduction eventually allowing massive deployment of accurate IoT AQ monitoring devices. Furthermore, this calibration model could be easily embedded on board of the device or implemented on the edge allowing immediate access to accurate readings for personal exposure monitor applications as well as reducing long range data transfer needs.
T2  - IEEE Transactions on Instrumentation and Measurement
T1  - A Global Multi-Unit Calibration as a Method for Large Scale IoT Particulate Matter Monitoring Systems Deployments
SP  - 1
EP  - 1
DO  - 10.1109/TIM.2023.3331428
ER  - 

@article{
author = "De Vito, Saverio and D’Elia, Gerardo and Ferlito, Sergio and Di Francia, Girolamo and Davidović, Miloš and Kleut, Duška and Stojanović, Danka and Jovašević-Stojanović, Milena",
year = "2023",
abstract = "Scalable and effective calibration is a fundamental requirement for Low Cost Air Quality Monitoring Systems and will enable accurate and pervasive monitoring in cities. Suffering from environmental interferences and fabrication variance, these devices need to encompass sensors specific and complex calibration processes for reaching a sufficient accuracy to be deployed as indicative measurement devices in Air Quality (AQ) monitoring networks. Concept and sensor drift often force calibration process to be frequently repeated. These issues lead to unbearable calibration costs which denies their massive deployment when accuracy is a concern. In this work, We propose a zero transfer samples, global calibration methodology as a technological enabler for IoT AQ multisensory devices which relies on low cost Particulate Matter (PM) sensors. This methodology is based on field recorded responses from a limited number of IoT AQ multisensors units and machine learning concepts and can be universally applied to all units of the same type. A multi season test campaign shown that, when applied to different sensors, this methodology performances match those of state of the art methodology which requires to derive different calibration parameters for each different unit. If confirmed, these results show that, when properly derived, a global calibration law can be exploited for a large number of networked devices with dramatic cost reduction eventually allowing massive deployment of accurate IoT AQ monitoring devices. Furthermore, this calibration model could be easily embedded on board of the device or implemented on the edge allowing immediate access to accurate readings for personal exposure monitor applications as well as reducing long range data transfer needs.",
journal = "IEEE Transactions on Instrumentation and Measurement",
title = "A Global Multi-Unit Calibration as a Method for Large Scale IoT Particulate Matter Monitoring Systems Deployments",
pages = "1-1",
doi = "10.1109/TIM.2023.3331428"
}

De Vito, S., D’Elia, G., Ferlito, S., Di Francia, G., Davidović, M., Kleut, D., Stojanović, D.,& Jovašević-Stojanović, M.. (2023). A Global Multi-Unit Calibration as a Method for Large Scale IoT Particulate Matter Monitoring Systems Deployments. in IEEE Transactions on Instrumentation and Measurement, 1-1.
https://doi.org/10.1109/TIM.2023.3331428

De Vito S, D’Elia G, Ferlito S, Di Francia G, Davidović M, Kleut D, Stojanović D, Jovašević-Stojanović M. A Global Multi-Unit Calibration as a Method for Large Scale IoT Particulate Matter Monitoring Systems Deployments. in IEEE Transactions on Instrumentation and Measurement. 2023;:1-1.
doi:10.1109/TIM.2023.3331428 .

De Vito, Saverio, D’Elia, Gerardo, Ferlito, Sergio, Di Francia, Girolamo, Davidović, Miloš, Kleut, Duška, Stojanović, Danka, Jovašević-Stojanović, Milena, "A Global Multi-Unit Calibration as a Method for Large Scale IoT Particulate Matter Monitoring Systems Deployments" in IEEE Transactions on Instrumentation and Measurement (2023):1-1,
https://doi.org/10.1109/TIM.2023.3331428 . .

Jovašević-Stojanović, M., de Vito, S., Davidović, M. D., Ristovski, Z.,& Bartonova, A.. (2023). Particulate matter research and management in Serbia. in Thermal Science, 27(3 Part B), XI-XV.
https://doi.org/10.2298/TSCI230300XIJ

Jovašević-Stojanović M, de Vito S, Davidović MD, Ristovski Z, Bartonova A. Particulate matter research and management in Serbia. in Thermal Science. 2023;27(3 Part B):XI-XV.
doi:10.2298/TSCI230300XIJ .

Jovašević-Stojanović, Milena, de Vito, Saverio, Davidović, Miloš D., Ristovski, Zoran, Bartonova, Alena, "Particulate matter research and management in Serbia" in Thermal Science, 27, no. 3 Part B (2023):XI-XV,
https://doi.org/10.2298/TSCI230300XIJ . .

TY  - JOUR
AU  - Stojanović, Danka
AU  - Kleut, Duška
AU  - Davidović, Miloš
AU  - de Vito, Saverio
AU  - Jovašević-Stojanović, Milena
AU  - Bartonova, Alena
AU  - Lepioufle, Jean-Marie
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12957
AB  - Particulate matter (PM) in air has been proven to be hazardous to human health. Here we focused on analysis of PM data we obtained from the same campaign which was presented in our previous study. Multivariate linear and random forest models were used for the calibration and analysis. In our linear regression model the inputs were PM, temperature and humidity measured with low-cost sensors, and the target was the reference PM measurements obtained from SEPA in the same timeframe.
T2  - Thermal Science
T1  - Low-processing data enrichment and calibration for PM2.5 low-cost sensors
VL  - 27
IS  - 3 Part B
SP  - 2229
EP  - 2240
DO  - 10.2298/TSCI221109221S
ER  - 

@article{
author = "Stojanović, Danka and Kleut, Duška and Davidović, Miloš and de Vito, Saverio and Jovašević-Stojanović, Milena and Bartonova, Alena and Lepioufle, Jean-Marie",
year = "2023",
abstract = "Particulate matter (PM) in air has been proven to be hazardous to human health. Here we focused on analysis of PM data we obtained from the same campaign which was presented in our previous study. Multivariate linear and random forest models were used for the calibration and analysis. In our linear regression model the inputs were PM, temperature and humidity measured with low-cost sensors, and the target was the reference PM measurements obtained from SEPA in the same timeframe.",
journal = "Thermal Science",
title = "Low-processing data enrichment and calibration for PM2.5 low-cost sensors",
volume = "27",
number = "3 Part B",
pages = "2229-2240",
doi = "10.2298/TSCI221109221S"
}

Stojanović, D., Kleut, D., Davidović, M., de Vito, S., Jovašević-Stojanović, M., Bartonova, A.,& Lepioufle, J.. (2023). Low-processing data enrichment and calibration for PM2.5 low-cost sensors. in Thermal Science, 27(3 Part B), 2229-2240.
https://doi.org/10.2298/TSCI221109221S

Stojanović D, Kleut D, Davidović M, de Vito S, Jovašević-Stojanović M, Bartonova A, Lepioufle J. Low-processing data enrichment and calibration for PM2.5 low-cost sensors. in Thermal Science. 2023;27(3 Part B):2229-2240.
doi:10.2298/TSCI221109221S .

Stojanović, Danka, Kleut, Duška, Davidović, Miloš, de Vito, Saverio, Jovašević-Stojanović, Milena, Bartonova, Alena, Lepioufle, Jean-Marie, "Low-processing data enrichment and calibration for PM2.5 low-cost sensors" in Thermal Science, 27, no. 3 Part B (2023):2229-2240,
https://doi.org/10.2298/TSCI221109221S . .

TY  - JOUR
AU  - Andreev, Vladimir A.
AU  - Davidović, Milena D.
AU  - Davidović, Ljubica D.
AU  - Davidović, Miloš D.
AU  - Davidović, Dragomir M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9164
AB  - We consider the system of N two-level atoms, of which N0 atoms are unexcited and N1 are excited. This system of N two-level atoms, which forms a linear quantum amplifier, interacts with a single-mode electromagnetic field. The problem of amplification of the L-photon states using such an amplifier is studied. The evolution of the electromagnetic field density matrix is described by the master equation for the field under amplification. The dynamics of this process is such that it can be described as the transformation of the scale of the phase space. The exact solution of the master equation is expressed using the transformed Husimi function of the L-quantum state of the harmonic oscillator. The properties of this function are studied and using it the average photon number and its fluctuations in the amplified state are found. © 2021, Editura Academiei Romane. All rights reserved.
T2  - Romanian Reports in Physics
T1  - Properties of the quantum state arising after the L-photon state has passed trough a linear quantum amplifier
VL  - 73
IS  - 1
SP  - 102
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9164
ER  - 

@article{
author = "Andreev, Vladimir A. and Davidović, Milena D. and Davidović, Ljubica D. and Davidović, Miloš D. and Davidović, Dragomir M.",
year = "2021",
abstract = "We consider the system of N two-level atoms, of which N0 atoms are unexcited and N1 are excited. This system of N two-level atoms, which forms a linear quantum amplifier, interacts with a single-mode electromagnetic field. The problem of amplification of the L-photon states using such an amplifier is studied. The evolution of the electromagnetic field density matrix is described by the master equation for the field under amplification. The dynamics of this process is such that it can be described as the transformation of the scale of the phase space. The exact solution of the master equation is expressed using the transformed Husimi function of the L-quantum state of the harmonic oscillator. The properties of this function are studied and using it the average photon number and its fluctuations in the amplified state are found. © 2021, Editura Academiei Romane. All rights reserved.",
journal = "Romanian Reports in Physics",
title = "Properties of the quantum state arising after the L-photon state has passed trough a linear quantum amplifier",
volume = "73",
number = "1",
pages = "102",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9164"
}

Andreev, V. A., Davidović, M. D., Davidović, L. D., Davidović, M. D.,& Davidović, D. M.. (2021). Properties of the quantum state arising after the L-photon state has passed trough a linear quantum amplifier. in Romanian Reports in Physics, 73(1), 102.
https://hdl.handle.net/21.15107/rcub_vinar_9164

Andreev VA, Davidović MD, Davidović LD, Davidović MD, Davidović DM. Properties of the quantum state arising after the L-photon state has passed trough a linear quantum amplifier. in Romanian Reports in Physics. 2021;73(1):102.
https://hdl.handle.net/21.15107/rcub_vinar_9164 .

Andreev, Vladimir A., Davidović, Milena D., Davidović, Ljubica D., Davidović, Miloš D., Davidović, Dragomir M., "Properties of the quantum state arising after the L-photon state has passed trough a linear quantum amplifier" in Romanian Reports in Physics, 73, no. 1 (2021):102,
https://hdl.handle.net/21.15107/rcub_vinar_9164 .

TY  - JOUR
AU  - Davidović, Miloš D.
AU  - Dmitrašinović, Sonja
AU  - Jovanović, Maja
AU  - Radonić, Jelena
AU  - Jovašević-Stojanović, Milena
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9553
AB  - Changes in air pollution in the region of the city of Novi Sad due to the COVID-19 induced state of emergency were evaluated while using data from permanently operating air quality monitoring stations belonging to the national, regional, and local networks, as well as ad hoc deployed low-cost particulate matter (PM) sensors. The low-cost sensors were collocated with reference gravimetric pumps. The starting idea for this research was to determine if and to what extent a massive change of anthropogenic activities introduced by lockdown could be observed in main air pollutants levels. An analysis of the data showed that fine and coarse particulate matter, as well as SO2 levels, did not change noticeably, compared to the pre-lockdown period. Isolated larger peaks in PM pollution were traced back to the Aralkum Desert episode. The reduced movement of vehicles and reduced industrial and construction activities during the lockdown in Novi Sad led to a reduction and a more uniform profile of the PM2.5 levels during the period between morning and afternoon air pollution peak, approximately during typical working hours. Daily profiles of NO2, NO, and NOX during the state of emergency proved lower levels during most hours of the day, due to restrictions on vehicular movement. CO during the state of the emergency mainly exhibited a lower level during night. Pollutants having transportation-dominated source profiles exhibited a decrease in level, while pollutants with domestic heating source profiles mostly exhibited a constant level. Considering local sources in Novi Sad, slight to moderate air quality improvement was observed after the lockdown as compared with days before. Furthermore, PM low-cost sensors’ usefulness in air quality assessment was confirmed, as they increase spatial resolution, but it is necessary to calibrate them at the deployment location.
T2  - Applied Sciences
T1  - Diurnal, Temporal and Spatial Variations of Main Air Pollutants Before and during Emergency Lockdown in the City of Novi Sad (Serbia)
VL  - 11
IS  - 3
SP  - 1212
DO  - 10.3390/app11031212
ER  - 

@article{
author = "Davidović, Miloš D. and Dmitrašinović, Sonja and Jovanović, Maja and Radonić, Jelena and Jovašević-Stojanović, Milena",
year = "2021",
abstract = "Changes in air pollution in the region of the city of Novi Sad due to the COVID-19 induced state of emergency were evaluated while using data from permanently operating air quality monitoring stations belonging to the national, regional, and local networks, as well as ad hoc deployed low-cost particulate matter (PM) sensors. The low-cost sensors were collocated with reference gravimetric pumps. The starting idea for this research was to determine if and to what extent a massive change of anthropogenic activities introduced by lockdown could be observed in main air pollutants levels. An analysis of the data showed that fine and coarse particulate matter, as well as SO2 levels, did not change noticeably, compared to the pre-lockdown period. Isolated larger peaks in PM pollution were traced back to the Aralkum Desert episode. The reduced movement of vehicles and reduced industrial and construction activities during the lockdown in Novi Sad led to a reduction and a more uniform profile of the PM2.5 levels during the period between morning and afternoon air pollution peak, approximately during typical working hours. Daily profiles of NO2, NO, and NOX during the state of emergency proved lower levels during most hours of the day, due to restrictions on vehicular movement. CO during the state of the emergency mainly exhibited a lower level during night. Pollutants having transportation-dominated source profiles exhibited a decrease in level, while pollutants with domestic heating source profiles mostly exhibited a constant level. Considering local sources in Novi Sad, slight to moderate air quality improvement was observed after the lockdown as compared with days before. Furthermore, PM low-cost sensors’ usefulness in air quality assessment was confirmed, as they increase spatial resolution, but it is necessary to calibrate them at the deployment location.",
journal = "Applied Sciences",
title = "Diurnal, Temporal and Spatial Variations of Main Air Pollutants Before and during Emergency Lockdown in the City of Novi Sad (Serbia)",
volume = "11",
number = "3",
pages = "1212",
doi = "10.3390/app11031212"
}

Davidović, M. D., Dmitrašinović, S., Jovanović, M., Radonić, J.,& Jovašević-Stojanović, M.. (2021). Diurnal, Temporal and Spatial Variations of Main Air Pollutants Before and during Emergency Lockdown in the City of Novi Sad (Serbia). in Applied Sciences, 11(3), 1212.
https://doi.org/10.3390/app11031212

Davidović MD, Dmitrašinović S, Jovanović M, Radonić J, Jovašević-Stojanović M. Diurnal, Temporal and Spatial Variations of Main Air Pollutants Before and during Emergency Lockdown in the City of Novi Sad (Serbia). in Applied Sciences. 2021;11(3):1212.
doi:10.3390/app11031212 .

Davidović, Miloš D., Dmitrašinović, Sonja, Jovanović, Maja, Radonić, Jelena, Jovašević-Stojanović, Milena, "Diurnal, Temporal and Spatial Variations of Main Air Pollutants Before and during Emergency Lockdown in the City of Novi Sad (Serbia)" in Applied Sciences, 11, no. 3 (2021):1212,
https://doi.org/10.3390/app11031212 . .

TY  - JOUR
AU  - Jovanović, Rastko D.
AU  - Davidović, Miloš D.
AU  - Lazović, Ivan
AU  - Jovanović, Maja
AU  - Jovašević-Stojanović, Milena
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9830
AB  - A novel statistical model based on a two-layer, contact and information, graph is suggested in order to study the influence of disease prevalence on voluntary general population vaccination during the COVID-19 outbreak. Details about the structure and number of susceptible, infectious, and recovered/vaccinated individuals from the contact layer are simultaneously transferred to the information layer. The ever-growing wealth of information that is becoming available about the COVID virus was modelled at each individual level by a simplified proxy predictor of the amount of disease spread. Each informed individual, a node in a heterogeneous graph, makes a decision about vaccination “motivated” by their benefit. The obtained results showed that disease information type, global or local, has a significant impact on an individual vaccination decision. A number of different scenarios were investigated. The scenarios showed that in the case of the stronger impact of globally broadcasted disease information, individuals tend to vaccinate in larger numbers at the same time when the infection has already spread within the population. If individuals make vaccination decisions based on locally available information, the vaccination rate is uniformly spread during infection outbreak duration. Prioritising elderly population vaccination leads to an increased number of infected cases and a higher reduction in mortality. The developed model accuracy allows the precise targeting of vaccination order depending on the individuals’ number of social contacts. Precisely targeted vaccination, combined with pre-existing immunity, and public health measures can limit the infection to isolated hotspots inside the population, as well as significantly delay and lower the infection peak.
T2  - International Journal of Environmental Research and Public Health
T2  - International Journal of Environmental Research and Public Health
T1  - Modelling voluntary general population vaccination strategies during covid-19 outbreak: Influence of disease prevalence
VL  - 18
IS  - 12
SP  - 6217
DO  - 10.3390/ijerph18126217
ER  - 

@article{
author = "Jovanović, Rastko D. and Davidović, Miloš D. and Lazović, Ivan and Jovanović, Maja and Jovašević-Stojanović, Milena",
year = "2021",
abstract = "A novel statistical model based on a two-layer, contact and information, graph is suggested in order to study the influence of disease prevalence on voluntary general population vaccination during the COVID-19 outbreak. Details about the structure and number of susceptible, infectious, and recovered/vaccinated individuals from the contact layer are simultaneously transferred to the information layer. The ever-growing wealth of information that is becoming available about the COVID virus was modelled at each individual level by a simplified proxy predictor of the amount of disease spread. Each informed individual, a node in a heterogeneous graph, makes a decision about vaccination “motivated” by their benefit. The obtained results showed that disease information type, global or local, has a significant impact on an individual vaccination decision. A number of different scenarios were investigated. The scenarios showed that in the case of the stronger impact of globally broadcasted disease information, individuals tend to vaccinate in larger numbers at the same time when the infection has already spread within the population. If individuals make vaccination decisions based on locally available information, the vaccination rate is uniformly spread during infection outbreak duration. Prioritising elderly population vaccination leads to an increased number of infected cases and a higher reduction in mortality. The developed model accuracy allows the precise targeting of vaccination order depending on the individuals’ number of social contacts. Precisely targeted vaccination, combined with pre-existing immunity, and public health measures can limit the infection to isolated hotspots inside the population, as well as significantly delay and lower the infection peak.",
journal = "International Journal of Environmental Research and Public Health, International Journal of Environmental Research and Public Health",
title = "Modelling voluntary general population vaccination strategies during covid-19 outbreak: Influence of disease prevalence",
volume = "18",
number = "12",
pages = "6217",
doi = "10.3390/ijerph18126217"
}

Jovanović, R. D., Davidović, M. D., Lazović, I., Jovanović, M.,& Jovašević-Stojanović, M.. (2021). Modelling voluntary general population vaccination strategies during covid-19 outbreak: Influence of disease prevalence. in International Journal of Environmental Research and Public Health, 18(12), 6217.
https://doi.org/10.3390/ijerph18126217

Jovanović RD, Davidović MD, Lazović I, Jovanović M, Jovašević-Stojanović M. Modelling voluntary general population vaccination strategies during covid-19 outbreak: Influence of disease prevalence. in International Journal of Environmental Research and Public Health. 2021;18(12):6217.
doi:10.3390/ijerph18126217 .

Jovanović, Rastko D., Davidović, Miloš D., Lazović, Ivan, Jovanović, Maja, Jovašević-Stojanović, Milena, "Modelling voluntary general population vaccination strategies during covid-19 outbreak: Influence of disease prevalence" in International Journal of Environmental Research and Public Health, 18, no. 12 (2021):6217,
https://doi.org/10.3390/ijerph18126217 . .

TY  - CONF
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10459
AB  - The International Workshop and Conference, Particulate Matter: Research and Management - WeBIOPATR is a biennial event held in Serbia since 2007. The conference addresses air quality in general and particulate matter specifically. Atmospheric particulate matter arises both from primary emissions and from secondary formation in the atmosphere. It is one of the least well understood local and regional air pollutants, has complex implications for climate change, and is perhaps the pollutant with the highest health relevance. It also poses many challenges to monitoring. [from Preface]
PB  - Belgrade : University of Belgrade - Vinča Institute of Nuclear Sciences
T1  - WeBIOPATR 2021 : Abstracts of keynote invited lectures and contributed papers
SP  - 1
EP  - 90
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10459
ER  - 

@conference{
editor = "Jovašević-Stojanović, Milena, Bartonova, Alena, Davidović, Miloš D., Smith, Simon",
year = "2021",
abstract = "The International Workshop and Conference, Particulate Matter: Research and Management - WeBIOPATR is a biennial event held in Serbia since 2007. The conference addresses air quality in general and particulate matter specifically. Atmospheric particulate matter arises both from primary emissions and from secondary formation in the atmosphere. It is one of the least well understood local and regional air pollutants, has complex implications for climate change, and is perhaps the pollutant with the highest health relevance. It also poses many challenges to monitoring. [from Preface]",
publisher = "Belgrade : University of Belgrade - Vinča Institute of Nuclear Sciences",
title = "WeBIOPATR 2021 : Abstracts of keynote invited lectures and contributed papers",
pages = "1-90",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10459"
}

Jovašević-Stojanović, M., Bartonova, A., Davidović, M. D.,& Smith, S.. (2021). WeBIOPATR 2021 : Abstracts of keynote invited lectures and contributed papers. 
Belgrade : University of Belgrade - Vinča Institute of Nuclear Sciences., 1-90.
https://hdl.handle.net/21.15107/rcub_vinar_10459

Jovašević-Stojanović M, Bartonova A, Davidović MD, Smith S. WeBIOPATR 2021 : Abstracts of keynote invited lectures and contributed papers. 2021;:1-90.
https://hdl.handle.net/21.15107/rcub_vinar_10459 .

Jovašević-Stojanović, Milena, Bartonova, Alena, Davidović, Miloš D., Smith, Simon, "WeBIOPATR 2021 : Abstracts of keynote invited lectures and contributed papers" (2021):1-90,
https://hdl.handle.net/21.15107/rcub_vinar_10459 .

TY  - CONF
AU  - Davidović, Miloš D.
AU  - Dmitrašinović, S.
AU  - Radonić, J.
AU  - Jovašević-Stojanović, Milena
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10989
PB  - Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences
C3  - WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
T1  - Planning and Conducting Mobile Aerosol Monitoring Campaign: Experiences from Belgrade and Novi Sad
SP  - 43
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10989
ER  - 

@conference{
author = "Davidović, Miloš D. and Dmitrašinović, S. and Radonić, J. and Jovašević-Stojanović, Milena",
year = "2021",
publisher = "Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences",
journal = "WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia",
title = "Planning and Conducting Mobile Aerosol Monitoring Campaign: Experiences from Belgrade and Novi Sad",
pages = "43",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10989"
}

Davidović, M. D., Dmitrašinović, S., Radonić, J.,& Jovašević-Stojanović, M.. (2021). Planning and Conducting Mobile Aerosol Monitoring Campaign: Experiences from Belgrade and Novi Sad. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences., 43.
https://hdl.handle.net/21.15107/rcub_vinar_10989

Davidović MD, Dmitrašinović S, Radonić J, Jovašević-Stojanović M. Planning and Conducting Mobile Aerosol Monitoring Campaign: Experiences from Belgrade and Novi Sad. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia. 2021;:43.
https://hdl.handle.net/21.15107/rcub_vinar_10989 .

Davidović, Miloš D., Dmitrašinović, S., Radonić, J., Jovašević-Stojanović, Milena, "Planning and Conducting Mobile Aerosol Monitoring Campaign: Experiences from Belgrade and Novi Sad" in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia (2021):43,
https://hdl.handle.net/21.15107/rcub_vinar_10989 .

TY  - CONF
AU  - Jovašević-Stojanović, Milena
AU  - Bartonova, A.
AU  - Davidović, Miloš D.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10990
PB  - Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences
C3  - WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
T1  - An Overview of Monitoring and Research of Atmospheric Particulate Matter in Serbia in the Past Half Decade
SP  - 49
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10990
ER  - 

@conference{
author = "Jovašević-Stojanović, Milena and Bartonova, A. and Davidović, Miloš D.",
year = "2021",
publisher = "Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences",
journal = "WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia",
title = "An Overview of Monitoring and Research of Atmospheric Particulate Matter in Serbia in the Past Half Decade",
pages = "49",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10990"
}

Jovašević-Stojanović, M., Bartonova, A.,& Davidović, M. D.. (2021). An Overview of Monitoring and Research of Atmospheric Particulate Matter in Serbia in the Past Half Decade. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences., 49.
https://hdl.handle.net/21.15107/rcub_vinar_10990

Jovašević-Stojanović M, Bartonova A, Davidović MD. An Overview of Monitoring and Research of Atmospheric Particulate Matter in Serbia in the Past Half Decade. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia. 2021;:49.
https://hdl.handle.net/21.15107/rcub_vinar_10990 .

Jovašević-Stojanović, Milena, Bartonova, A., Davidović, Miloš D., "An Overview of Monitoring and Research of Atmospheric Particulate Matter in Serbia in the Past Half Decade" in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia (2021):49,
https://hdl.handle.net/21.15107/rcub_vinar_10990 .

TY  - CONF
AU  - Dmitrašinović, S.
AU  - Jovašević-Stojanović, Milena
AU  - Radonić, J.
AU  - Davidović, Miloš D.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10992
PB  - Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences
C3  - WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
T1  - Comparative Statistical Analysis of Particulate Matter Pollution and Traffic Intensity on a Selected Location in the City of Novi Sad
SP  - 55
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10992
ER  - 

@conference{
author = "Dmitrašinović, S. and Jovašević-Stojanović, Milena and Radonić, J. and Davidović, Miloš D.",
year = "2021",
publisher = "Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences",
journal = "WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia",
title = "Comparative Statistical Analysis of Particulate Matter Pollution and Traffic Intensity on a Selected Location in the City of Novi Sad",
pages = "55",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10992"
}

Dmitrašinović, S., Jovašević-Stojanović, M., Radonić, J.,& Davidović, M. D.. (2021). Comparative Statistical Analysis of Particulate Matter Pollution and Traffic Intensity on a Selected Location in the City of Novi Sad. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences., 55.
https://hdl.handle.net/21.15107/rcub_vinar_10992

Dmitrašinović S, Jovašević-Stojanović M, Radonić J, Davidović MD. Comparative Statistical Analysis of Particulate Matter Pollution and Traffic Intensity on a Selected Location in the City of Novi Sad. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia. 2021;:55.
https://hdl.handle.net/21.15107/rcub_vinar_10992 .

Dmitrašinović, S., Jovašević-Stojanović, Milena, Radonić, J., Davidović, Miloš D., "Comparative Statistical Analysis of Particulate Matter Pollution and Traffic Intensity on a Selected Location in the City of Novi Sad" in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia (2021):55,
https://hdl.handle.net/21.15107/rcub_vinar_10992 .

TY  - CONF
AU  - Jovanović, Rastko
AU  - Davidović, Miloš D.
AU  - Massera, Ettore
AU  - Ristovski, Zoran
AU  - Jovašević-Stojanović, Milena
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10995
PB  - Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences
C3  - WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
T1  - Modeling Controlled Aerosol Atmosphere by Utilizing Physics Based Modeling: Experience from Using Computational Fluid Dynamics Approach
SP  - 74
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10995
ER  - 

@conference{
author = "Jovanović, Rastko and Davidović, Miloš D. and Massera, Ettore and Ristovski, Zoran and Jovašević-Stojanović, Milena",
year = "2021",
publisher = "Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences",
journal = "WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia",
title = "Modeling Controlled Aerosol Atmosphere by Utilizing Physics Based Modeling: Experience from Using Computational Fluid Dynamics Approach",
pages = "74",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10995"
}

Jovanović, R., Davidović, M. D., Massera, E., Ristovski, Z.,& Jovašević-Stojanović, M.. (2021). Modeling Controlled Aerosol Atmosphere by Utilizing Physics Based Modeling: Experience from Using Computational Fluid Dynamics Approach. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences., 74.
https://hdl.handle.net/21.15107/rcub_vinar_10995

Jovanović R, Davidović MD, Massera E, Ristovski Z, Jovašević-Stojanović M. Modeling Controlled Aerosol Atmosphere by Utilizing Physics Based Modeling: Experience from Using Computational Fluid Dynamics Approach. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia. 2021;:74.
https://hdl.handle.net/21.15107/rcub_vinar_10995 .

Jovanović, Rastko, Davidović, Miloš D., Massera, Ettore, Ristovski, Zoran, Jovašević-Stojanović, Milena, "Modeling Controlled Aerosol Atmosphere by Utilizing Physics Based Modeling: Experience from Using Computational Fluid Dynamics Approach" in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia (2021):74,
https://hdl.handle.net/21.15107/rcub_vinar_10995 .

TY  - CONF
AU  - Živković, Marija M.
AU  - Jovašević-Stojanović, Milena
AU  - Cvetković, A.
AU  - Lazović, Ivan
AU  - Davidović, Miloš D.
AU  - Gržetić, I.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10999
PB  - Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences
C3  - WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
T1  - Characterisation of Fine Particulate Matter Level, Content and Sources of a Kindergarden Microenvironment in Belgrade City Center
SP  - 81
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10999
ER  - 

@conference{
author = "Živković, Marija M. and Jovašević-Stojanović, Milena and Cvetković, A. and Lazović, Ivan and Davidović, Miloš D. and Gržetić, I.",
year = "2021",
publisher = "Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences",
journal = "WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia",
title = "Characterisation of Fine Particulate Matter Level, Content and Sources of a Kindergarden Microenvironment in Belgrade City Center",
pages = "81",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10999"
}

Živković, M. M., Jovašević-Stojanović, M., Cvetković, A., Lazović, I., Davidović, M. D.,& Gržetić, I.. (2021). Characterisation of Fine Particulate Matter Level, Content and Sources of a Kindergarden Microenvironment in Belgrade City Center. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences., 81.
https://hdl.handle.net/21.15107/rcub_vinar_10999

Živković MM, Jovašević-Stojanović M, Cvetković A, Lazović I, Davidović MD, Gržetić I. Characterisation of Fine Particulate Matter Level, Content and Sources of a Kindergarden Microenvironment in Belgrade City Center. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia. 2021;:81.
https://hdl.handle.net/21.15107/rcub_vinar_10999 .

Živković, Marija M., Jovašević-Stojanović, Milena, Cvetković, A., Lazović, Ivan, Davidović, Miloš D., Gržetić, I., "Characterisation of Fine Particulate Matter Level, Content and Sources of a Kindergarden Microenvironment in Belgrade City Center" in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia (2021):81,
https://hdl.handle.net/21.15107/rcub_vinar_10999 .

TY  - CONF
AU  - Kleut, Duška
AU  - Stojanović, D.
AU  - Davidović, Miloš D.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11001
PB  - Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences
C3  - WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
T1  - PM Low-Cost Sensors In-Field Calibration: The Influence of Sampling Coverage and Intervals
SP  - 83
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11001
ER  - 

@conference{
author = "Kleut, Duška and Stojanović, D. and Davidović, Miloš D.",
year = "2021",
publisher = "Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences",
journal = "WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia",
title = "PM Low-Cost Sensors In-Field Calibration: The Influence of Sampling Coverage and Intervals",
pages = "83",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11001"
}

Kleut, D., Stojanović, D.,& Davidović, M. D.. (2021). PM Low-Cost Sensors In-Field Calibration: The Influence of Sampling Coverage and Intervals. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences., 83.
https://hdl.handle.net/21.15107/rcub_vinar_11001

Kleut D, Stojanović D, Davidović MD. PM Low-Cost Sensors In-Field Calibration: The Influence of Sampling Coverage and Intervals. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia. 2021;:83.
https://hdl.handle.net/21.15107/rcub_vinar_11001 .

Kleut, Duška, Stojanović, D., Davidović, Miloš D., "PM Low-Cost Sensors In-Field Calibration: The Influence of Sampling Coverage and Intervals" in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia (2021):83,
https://hdl.handle.net/21.15107/rcub_vinar_11001 .

TY  - CONF
AU  - Gagić-Lazarević, R.
AU  - Jovašević-Stojanović, Milena
AU  - Nikolić, D.
AU  - Davidović, Miloš D.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11002
PB  - Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences
C3  - WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
T1  - Preliminary Results from PM Mobile Monitoring Pilot Campaign in Boka Kotorska Bay: PM Levels and Observed Modes in Onshore  and Offshore Area
SP  - 84
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11002
ER  - 

@conference{
author = "Gagić-Lazarević, R. and Jovašević-Stojanović, Milena and Nikolić, D. and Davidović, Miloš D.",
year = "2021",
publisher = "Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences",
journal = "WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia",
title = "Preliminary Results from PM Mobile Monitoring Pilot Campaign in Boka Kotorska Bay: PM Levels and Observed Modes in Onshore  and Offshore Area",
pages = "84",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11002"
}

Gagić-Lazarević, R., Jovašević-Stojanović, M., Nikolić, D.,& Davidović, M. D.. (2021). Preliminary Results from PM Mobile Monitoring Pilot Campaign in Boka Kotorska Bay: PM Levels and Observed Modes in Onshore  and Offshore Area. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia
Belgrade : University of Belgrade, Vinča Institute of Nuclear Sciences., 84.
https://hdl.handle.net/21.15107/rcub_vinar_11002

Gagić-Lazarević R, Jovašević-Stojanović M, Nikolić D, Davidović MD. Preliminary Results from PM Mobile Monitoring Pilot Campaign in Boka Kotorska Bay: PM Levels and Observed Modes in Onshore  and Offshore Area. in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia. 2021;:84.
https://hdl.handle.net/21.15107/rcub_vinar_11002 .

Gagić-Lazarević, R., Jovašević-Stojanović, Milena, Nikolić, D., Davidović, Miloš D., "Preliminary Results from PM Mobile Monitoring Pilot Campaign in Boka Kotorska Bay: PM Levels and Observed Modes in Onshore  and Offshore Area" in WeBIOPATR 2021 : 8th WeBIOPATR Workshop & Conference: Particulate Matter: Research and Management : Abstracts of Keynote Invited Lectures and Contributed Papers; November 29 - December 1, 2021; Belgrade, Serbia (2021):84,
https://hdl.handle.net/21.15107/rcub_vinar_11002 .

TY  - CONF
AU  - Davidović, Miloš
AU  - Helbig, Alexandra
AU  - Nohyl, Jiri
AU  - Živanović, Miloš
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11135
PB  - RAD Centre, Niš, Serbia
C3  - RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference
T1  - Conforming to the harmonized UAV regulatory framework in European countries – Experiences from the Preparedness project
SP  - 41
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11135
ER  - 

@conference{
author = "Davidović, Miloš and Helbig, Alexandra and Nohyl, Jiri and Živanović, Miloš",
year = "2020",
publisher = "RAD Centre, Niš, Serbia",
journal = "RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference",
title = "Conforming to the harmonized UAV regulatory framework in European countries – Experiences from the Preparedness project",
pages = "41",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11135"
}

Davidović, M., Helbig, A., Nohyl, J.,& Živanović, M.. (2020). Conforming to the harmonized UAV regulatory framework in European countries – Experiences from the Preparedness project. in RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference
RAD Centre, Niš, Serbia., 41.
https://hdl.handle.net/21.15107/rcub_vinar_11135

Davidović M, Helbig A, Nohyl J, Živanović M. Conforming to the harmonized UAV regulatory framework in European countries – Experiences from the Preparedness project. in RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference. 2020;:41.
https://hdl.handle.net/21.15107/rcub_vinar_11135 .

Davidović, Miloš, Helbig, Alexandra, Nohyl, Jiri, Živanović, Miloš, "Conforming to the harmonized UAV regulatory framework in European countries – Experiences from the Preparedness project" in RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference (2020):41,
https://hdl.handle.net/21.15107/rcub_vinar_11135 .

TY  - CONF
AU  - Davidović, Miloš
AU  - Topalović, Dušan
AU  - Stanković, Srboljub
AU  - Živanović, Miloš
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11137
PB  - RAD Centre, Niš, Serbia
C3  - RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference
T1  - On the determination of uncertainty budget of electromagnetic field spectrum analyzers – A case study
SP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11137
ER  - 

@conference{
author = "Davidović, Miloš and Topalović, Dušan and Stanković, Srboljub and Živanović, Miloš",
year = "2020",
publisher = "RAD Centre, Niš, Serbia",
journal = "RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference",
title = "On the determination of uncertainty budget of electromagnetic field spectrum analyzers – A case study",
pages = "80",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11137"
}

Davidović, M., Topalović, D., Stanković, S.,& Živanović, M.. (2020). On the determination of uncertainty budget of electromagnetic field spectrum analyzers – A case study. in RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference
RAD Centre, Niš, Serbia., 80.
https://hdl.handle.net/21.15107/rcub_vinar_11137

Davidović M, Topalović D, Stanković S, Živanović M. On the determination of uncertainty budget of electromagnetic field spectrum analyzers – A case study. in RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference. 2020;:80.
https://hdl.handle.net/21.15107/rcub_vinar_11137 .

Davidović, Miloš, Topalović, Dušan, Stanković, Srboljub, Živanović, Miloš, "On the determination of uncertainty budget of electromagnetic field spectrum analyzers – A case study" in RAD 2020 : 8th International Conference on Radiation in Various Fields of Research : book of abstracts; Virtual Conference (2020):80,
https://hdl.handle.net/21.15107/rcub_vinar_11137 .

TY  - JOUR
AU  - Topalović, Dušan
AU  - Davidović, Miloš D.
AU  - Jovanović, Maja
AU  - Bartonova, Alena
AU  - Ristovski, Zoran
AU  - Jovašević-Stojanović, Milena
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8372
AB  - The current compliance networks of automatic air-quality monitoring stations in large urban environments are not sufficient to provide spatial and temporal measurement resolution for realistic assessment of personal exposure to pollutants. Small low-cost sensor platforms with greater mobility and expected lower maintenance costs, are increasingly being used as a supplement to compliance monitoring stations. However, low-cost sensor platforms usually provide data with uncertain precision. To improve the precision, these sensor platforms require in-field calibration. Our paper aims to demonstrate that data from each individual sensor system can be corrected using that sensor system's own data to achieve much improved data quality compared to a reference. However, in this procedure, there are practical difficulties such as individual sensor outputs from the multi-sensor system not being sufficiently available due to malfunctions for instance. We explore how this can be dealt with. In our opinion, this is a novel approach, of practical importance both to users and manufacturers. We present a detailed comparative analysis of Linear Regression (univariate), Multivariate Linear Regression and Artificial Neural Networks used with a specific aim of calibrating field-deployed low-cost CO and O3 sensors. For Artificial Neural Network models, the performance of three common training algorithms was compared (Levenberg-Marquardt, Resilient back-propagation and Conjugate Gradient Powell-Beale algorithm). Data for this study were obtained from two campaigns conducted with 25 multi-sensor AQMESH v.3.5 platforms used within the activities of the CITI-SENSE project. The platforms were co-located to reference gas monitors at the Automatic Monitoring Station Stari Grad, in Belgrade, Serbia. This paper demonstrates that Multivariate Linear Regression and Artificial Neural Network calibration models can improve the output signal. This improvement can be measured by changes in the median and interquartile ranges of statistical parameters used for model evaluation. Artificial Neural Networks showed the best results compared to Linear Regression and Multivariate Linear Regression models. The best predictors for CO, in addition to CO low-cost sensor data, were PM2.5 and NO2, while for O3, in addition to O3 low-cost sensor data, the most suitable input predictors were NO and aH. Based on residual error analysis, we have shown that for CO and O3, a certain range of concentrations exists in which calibrated values differ by less than 10% from the reference method results. In addition, it was noted that for all models, CO sensors consistently showed lower variability between platforms compared to O3 sensors. © 2019 Elsevier Ltd
T2  - Atmospheric Environment
T1  - In search of an optimal in-field calibration method of low-cost gas sensors for ambient air pollutants: Comparison of linear, multilinear and artificial neural network approaches
VL  - 213
SP  - 640
EP  - 658
DO  - 10.1016/j.atmosenv.2019.06.028
ER  - 

@article{
author = "Topalović, Dušan and Davidović, Miloš D. and Jovanović, Maja and Bartonova, Alena and Ristovski, Zoran and Jovašević-Stojanović, Milena",
year = "2019",
abstract = "The current compliance networks of automatic air-quality monitoring stations in large urban environments are not sufficient to provide spatial and temporal measurement resolution for realistic assessment of personal exposure to pollutants. Small low-cost sensor platforms with greater mobility and expected lower maintenance costs, are increasingly being used as a supplement to compliance monitoring stations. However, low-cost sensor platforms usually provide data with uncertain precision. To improve the precision, these sensor platforms require in-field calibration. Our paper aims to demonstrate that data from each individual sensor system can be corrected using that sensor system's own data to achieve much improved data quality compared to a reference. However, in this procedure, there are practical difficulties such as individual sensor outputs from the multi-sensor system not being sufficiently available due to malfunctions for instance. We explore how this can be dealt with. In our opinion, this is a novel approach, of practical importance both to users and manufacturers. We present a detailed comparative analysis of Linear Regression (univariate), Multivariate Linear Regression and Artificial Neural Networks used with a specific aim of calibrating field-deployed low-cost CO and O3 sensors. For Artificial Neural Network models, the performance of three common training algorithms was compared (Levenberg-Marquardt, Resilient back-propagation and Conjugate Gradient Powell-Beale algorithm). Data for this study were obtained from two campaigns conducted with 25 multi-sensor AQMESH v.3.5 platforms used within the activities of the CITI-SENSE project. The platforms were co-located to reference gas monitors at the Automatic Monitoring Station Stari Grad, in Belgrade, Serbia. This paper demonstrates that Multivariate Linear Regression and Artificial Neural Network calibration models can improve the output signal. This improvement can be measured by changes in the median and interquartile ranges of statistical parameters used for model evaluation. Artificial Neural Networks showed the best results compared to Linear Regression and Multivariate Linear Regression models. The best predictors for CO, in addition to CO low-cost sensor data, were PM2.5 and NO2, while for O3, in addition to O3 low-cost sensor data, the most suitable input predictors were NO and aH. Based on residual error analysis, we have shown that for CO and O3, a certain range of concentrations exists in which calibrated values differ by less than 10% from the reference method results. In addition, it was noted that for all models, CO sensors consistently showed lower variability between platforms compared to O3 sensors. © 2019 Elsevier Ltd",
journal = "Atmospheric Environment",
title = "In search of an optimal in-field calibration method of low-cost gas sensors for ambient air pollutants: Comparison of linear, multilinear and artificial neural network approaches",
volume = "213",
pages = "640-658",
doi = "10.1016/j.atmosenv.2019.06.028"
}

Topalović, D., Davidović, M. D., Jovanović, M., Bartonova, A., Ristovski, Z.,& Jovašević-Stojanović, M.. (2019). In search of an optimal in-field calibration method of low-cost gas sensors for ambient air pollutants: Comparison of linear, multilinear and artificial neural network approaches. in Atmospheric Environment, 213, 640-658.
https://doi.org/10.1016/j.atmosenv.2019.06.028

Topalović D, Davidović MD, Jovanović M, Bartonova A, Ristovski Z, Jovašević-Stojanović M. In search of an optimal in-field calibration method of low-cost gas sensors for ambient air pollutants: Comparison of linear, multilinear and artificial neural network approaches. in Atmospheric Environment. 2019;213:640-658.
doi:10.1016/j.atmosenv.2019.06.028 .

Topalović, Dušan, Davidović, Miloš D., Jovanović, Maja, Bartonova, Alena, Ristovski, Zoran, Jovašević-Stojanović, Milena, "In search of an optimal in-field calibration method of low-cost gas sensors for ambient air pollutants: Comparison of linear, multilinear and artificial neural network approaches" in Atmospheric Environment, 213 (2019):640-658,
https://doi.org/10.1016/j.atmosenv.2019.06.028 . .

TY  - JOUR
AU  - Andreev, Vladimir A.
AU  - Davidović, Milena D.
AU  - Davidović, Ljubica D.
AU  - Davidović, Miloš D.
AU  - Davidović, Dragomir M.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8628
AB  - We consider a linear quantum amplifier consisting of NA two-level atoms and study the problem of amplification of N-photon states. The N-photon states are associated with N-quantum states of the harmonic oscillator. We show that the process of interaction of the electromagnetic field with atoms can be associated with some transformation of the phase space and functions defined on this phase space. We consider the Husimi functions QN(q, p) of N-quantum states of the harmonic oscillator, which are defined on the phase space, investigate transformation of these functions, and find an explicit form of the density matrix of the amplified N-photon state. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.
T2  - Journal of Russian Laser Research
T1  - Linear Light Amplifier and Amplification of N-Photon States
VL  - 40
IS  - 4
SP  - 321
EP  - 327
DO  - 10.1007/s10946-019-09807-2
ER  - 

@article{
author = "Andreev, Vladimir A. and Davidović, Milena D. and Davidović, Ljubica D. and Davidović, Miloš D. and Davidović, Dragomir M.",
year = "2019",
abstract = "We consider a linear quantum amplifier consisting of NA two-level atoms and study the problem of amplification of N-photon states. The N-photon states are associated with N-quantum states of the harmonic oscillator. We show that the process of interaction of the electromagnetic field with atoms can be associated with some transformation of the phase space and functions defined on this phase space. We consider the Husimi functions QN(q, p) of N-quantum states of the harmonic oscillator, which are defined on the phase space, investigate transformation of these functions, and find an explicit form of the density matrix of the amplified N-photon state. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.",
journal = "Journal of Russian Laser Research",
title = "Linear Light Amplifier and Amplification of N-Photon States",
volume = "40",
number = "4",
pages = "321-327",
doi = "10.1007/s10946-019-09807-2"
}

Andreev, V. A., Davidović, M. D., Davidović, L. D., Davidović, M. D.,& Davidović, D. M.. (2019). Linear Light Amplifier and Amplification of N-Photon States. in Journal of Russian Laser Research, 40(4), 321-327.
https://doi.org/10.1007/s10946-019-09807-2

Andreev VA, Davidović MD, Davidović LD, Davidović MD, Davidović DM. Linear Light Amplifier and Amplification of N-Photon States. in Journal of Russian Laser Research. 2019;40(4):321-327.
doi:10.1007/s10946-019-09807-2 .

Andreev, Vladimir A., Davidović, Milena D., Davidović, Ljubica D., Davidović, Miloš D., Davidović, Dragomir M., "Linear Light Amplifier and Amplification of N-Photon States" in Journal of Russian Laser Research, 40, no. 4 (2019):321-327,
https://doi.org/10.1007/s10946-019-09807-2 . .

TY  - CONF
AU  - Živanović, Miloš Z.
AU  - Neumaier, Stefan
AU  - Ciraj-Bjelac, Olivera
AU  - Pantelić, Gordana K.
AU  - Davidović, Miloš D.
AU  - Kržanović, Nikola
AU  - Stanković-Petrović, Jelena S.
PY  - 2019
UR  - https://plus.sr.cobiss.net/opac7/bib/279687436
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8695
AB  - 16ENV04 Preparedness je projekat iz poziva EMPIR 2016 za zaštitu životne sredine. Glavni cilj projekta je poboljšanje pripravnosti za nuklearne i radiološke incidente i akcidente, koji bi mogli da se dogode u budušnosti. Pripravnost će biti poboljšana tako što će se izvršiti istraživanja u nekoliko pravaca: upotreba bespilotnih letelica za radiološka merenja, upotreba mobilnih sistema za uzorkovanje vazduha, istraživanje mogućnosti  korišćenja radioloških podataka iz nevladinih mreža i korišćenje sistema pasivnih dozimetara za monitoring okoline. Još jedan od načina za poboljšanje pripravnosti je smanjenje  mogušnosti bezrazložne  panike  koja  bi  mogla  da  bude izazvana  diseminacijom merenja iz nevladinih mreža i drugih izvora, što bi moglo da izazove i smanjenje poverenja u zvanične podatke. U cilju realizacije projekta, od velikog značaja su diseminacija razultata i komunikacija sa svim zainteresovanim stranama.
AB  - 16ENV04 Preparedness is a research project within the EMPIR 2016environment call. The  main  project  goal  is  to  increase  the  preparedness  for  nuclear  and  radiological incidents  and  accidents  that  might  occur  in  the  future.  The  preparedness  will  be increased  by  pursuing  several  directions  of  research:  use  of  unmanned  aerial  vehicles for radiological measurements, use of transportable air-sampling systems, investigating the crowd sourced radiological data for possible official uses and investigating the use of passive dosimetry systems for ambient monitoring. Another aspect of preparedness is to try to reduce the possibility of unwarranted panic caused by the data disseminated by citizen  networks  and  other  sources  and  to  increase  confidence  in  official  data.  To realize the project goals, communication with stakeholders and dissemination of results are of greatest importance.
PB  - Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе
C3  - 30. симпозијум ДЗЗСЦГ : зборник радова
T1  - EMPIR projekat 16ENV04 Preparedness - glavni ciljevi i pravci istraživanja
T1  - EMPIR project 16ENV04 Preparedness - main goals and research directions
SP  - 144
EP  - 149
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8695
ER  - 

@conference{
author = "Živanović, Miloš Z. and Neumaier, Stefan and Ciraj-Bjelac, Olivera and Pantelić, Gordana K. and Davidović, Miloš D. and Kržanović, Nikola and Stanković-Petrović, Jelena S.",
year = "2019",
abstract = "16ENV04 Preparedness je projekat iz poziva EMPIR 2016 za zaštitu životne sredine. Glavni cilj projekta je poboljšanje pripravnosti za nuklearne i radiološke incidente i akcidente, koji bi mogli da se dogode u budušnosti. Pripravnost će biti poboljšana tako što će se izvršiti istraživanja u nekoliko pravaca: upotreba bespilotnih letelica za radiološka merenja, upotreba mobilnih sistema za uzorkovanje vazduha, istraživanje mogućnosti  korišćenja radioloških podataka iz nevladinih mreža i korišćenje sistema pasivnih dozimetara za monitoring okoline. Još jedan od načina za poboljšanje pripravnosti je smanjenje  mogušnosti bezrazložne  panike  koja  bi  mogla  da  bude izazvana  diseminacijom merenja iz nevladinih mreža i drugih izvora, što bi moglo da izazove i smanjenje poverenja u zvanične podatke. U cilju realizacije projekta, od velikog značaja su diseminacija razultata i komunikacija sa svim zainteresovanim stranama., 16ENV04 Preparedness is a research project within the EMPIR 2016environment call. The  main  project  goal  is  to  increase  the  preparedness  for  nuclear  and  radiological incidents  and  accidents  that  might  occur  in  the  future.  The  preparedness  will  be increased  by  pursuing  several  directions  of  research:  use  of  unmanned  aerial  vehicles for radiological measurements, use of transportable air-sampling systems, investigating the crowd sourced radiological data for possible official uses and investigating the use of passive dosimetry systems for ambient monitoring. Another aspect of preparedness is to try to reduce the possibility of unwarranted panic caused by the data disseminated by citizen  networks  and  other  sources  and  to  increase  confidence  in  official  data.  To realize the project goals, communication with stakeholders and dissemination of results are of greatest importance.",
publisher = "Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе",
journal = "30. симпозијум ДЗЗСЦГ : зборник радова",
title = "EMPIR projekat 16ENV04 Preparedness - glavni ciljevi i pravci istraživanja, EMPIR project 16ENV04 Preparedness - main goals and research directions",
pages = "144-149",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8695"
}

Živanović, M. Z., Neumaier, S., Ciraj-Bjelac, O., Pantelić, G. K., Davidović, M. D., Kržanović, N.,& Stanković-Petrović, J. S.. (2019). EMPIR projekat 16ENV04 Preparedness - glavni ciljevi i pravci istraživanja. in 30. симпозијум ДЗЗСЦГ : зборник радова
Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе., 144-149.
https://hdl.handle.net/21.15107/rcub_vinar_8695

Živanović MZ, Neumaier S, Ciraj-Bjelac O, Pantelić GK, Davidović MD, Kržanović N, Stanković-Petrović JS. EMPIR projekat 16ENV04 Preparedness - glavni ciljevi i pravci istraživanja. in 30. симпозијум ДЗЗСЦГ : зборник радова. 2019;:144-149.
https://hdl.handle.net/21.15107/rcub_vinar_8695 .

Živanović, Miloš Z., Neumaier, Stefan, Ciraj-Bjelac, Olivera, Pantelić, Gordana K., Davidović, Miloš D., Kržanović, Nikola, Stanković-Petrović, Jelena S., "EMPIR projekat 16ENV04 Preparedness - glavni ciljevi i pravci istraživanja" in 30. симпозијум ДЗЗСЦГ : зборник радова (2019):144-149,
https://hdl.handle.net/21.15107/rcub_vinar_8695 .

TY  - CONF
AU  - Davidović, Miloš D.
AU  - Helbig, Alexandra
AU  - Nohyl, Jiri
AU  - Živanović, Miloš Z.
PY  - 2019
UR  - https://plus.sr.cobiss.net/opac7/bib/279687436
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8725
AB  - Bespilotne letelice, kolokvijalno poznatije kao dronovi, mogu biti od velike pomoći prilikom prikupljanja podataka visoke rezolucije, naročito u slučajevima kada direktno uključivanje obučenog osoblja na lokaciji od interesa ne bi bilo poželjno. Takav je slučaj sa reagovanjem u slučaju nuklearnog ili radiološkog akcidenta. Dron koji bi imao niz kompaktnih senzora, koji bi sadržali i specijalizovanu opremu koja nije deo standardnog tovara drona, kao što je npr. gama spektrometar, bi bio od velike pomoći, naravno pod pretpostavkom pouzdanog linka za prenos podataka u izazovnom okruženju kakvo je i očekivano u tom slučaju. Pitanje koje komplikuje upotrebu dronova u ovakvim situacijama, a možda i više u slučaju istraživanja i vežbi (koje moraju prethoditi bilo kakvoj realnoj upotrebi) je heterogeni regulatorni okvir koji postoji u evropskim zemljama. Ova fragmentacija je potekla od činjenice da je Evropska komisija ostavila regulisanje dronova mase ispod 150kg zemljama članicama. Iako je nova, harmonizujuća regulativa u procesu donošenja i primene, različiti nacionalni regulatorni okviri su još uvek na snazi, i oni imaju i slučnosti ali i kontrastirajuće elemente. U ovom radu je dat pregled odabranih nacionalnih regulativa u kontekstu reagovanja u vanrednim situacijama kao i uvid u neke buduće trendove.
AB  - Unmanned aerial vehicles -UAVs, more colloquially known as drones, can be of great help in high resolution data acquisition, especially in situations where direct, on-the-ground involvement of trained personnel would be strongly undesirable. One such case is an emergency response following a nuclear or radiological event. Drone mounted with array of compact sensors, which may include specialized equipment not commonly found in the payload, such as gamma spectrometer, would be of great help to first responders, of course under assumption of a reliable data link in a complicated environment. Issue that complicates use of drones in emergency situations, and maybe even more so in research and exercises (that must precede any realistic use) is heterogeneous regulatory framework that currently exists in European countries. This fragmentation originated from the fact that European Commission left regulation of drones under 150kg to Member States. While new harmonizing legislation is under discussion, various national UAV regulations are still in place, with strong similarities but also with contrasting elements. This work summarizes current status of various national UAV regulations in the context of emergency response and also gives perspective into future trends.
PB  - Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе
C3  - 30. симпозијум ДЗЗСЦГ : зборник радова
T1  - Pregled postojećeg regulatornog okvira za bespilotne letelice u evropskim zemljama u kontekstu reagovanja i vežbi reagovanja u vanrednim situacijama
T1  - Overview of the existing UAV regulatory framework in European contries in the context of an emergency response and emergency response exercises
SP  - 622
EP  - 628
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8725
ER  - 

@conference{
author = "Davidović, Miloš D. and Helbig, Alexandra and Nohyl, Jiri and Živanović, Miloš Z.",
year = "2019",
abstract = "Bespilotne letelice, kolokvijalno poznatije kao dronovi, mogu biti od velike pomoći prilikom prikupljanja podataka visoke rezolucije, naročito u slučajevima kada direktno uključivanje obučenog osoblja na lokaciji od interesa ne bi bilo poželjno. Takav je slučaj sa reagovanjem u slučaju nuklearnog ili radiološkog akcidenta. Dron koji bi imao niz kompaktnih senzora, koji bi sadržali i specijalizovanu opremu koja nije deo standardnog tovara drona, kao što je npr. gama spektrometar, bi bio od velike pomoći, naravno pod pretpostavkom pouzdanog linka za prenos podataka u izazovnom okruženju kakvo je i očekivano u tom slučaju. Pitanje koje komplikuje upotrebu dronova u ovakvim situacijama, a možda i više u slučaju istraživanja i vežbi (koje moraju prethoditi bilo kakvoj realnoj upotrebi) je heterogeni regulatorni okvir koji postoji u evropskim zemljama. Ova fragmentacija je potekla od činjenice da je Evropska komisija ostavila regulisanje dronova mase ispod 150kg zemljama članicama. Iako je nova, harmonizujuća regulativa u procesu donošenja i primene, različiti nacionalni regulatorni okviri su još uvek na snazi, i oni imaju i slučnosti ali i kontrastirajuće elemente. U ovom radu je dat pregled odabranih nacionalnih regulativa u kontekstu reagovanja u vanrednim situacijama kao i uvid u neke buduće trendove., Unmanned aerial vehicles -UAVs, more colloquially known as drones, can be of great help in high resolution data acquisition, especially in situations where direct, on-the-ground involvement of trained personnel would be strongly undesirable. One such case is an emergency response following a nuclear or radiological event. Drone mounted with array of compact sensors, which may include specialized equipment not commonly found in the payload, such as gamma spectrometer, would be of great help to first responders, of course under assumption of a reliable data link in a complicated environment. Issue that complicates use of drones in emergency situations, and maybe even more so in research and exercises (that must precede any realistic use) is heterogeneous regulatory framework that currently exists in European countries. This fragmentation originated from the fact that European Commission left regulation of drones under 150kg to Member States. While new harmonizing legislation is under discussion, various national UAV regulations are still in place, with strong similarities but also with contrasting elements. This work summarizes current status of various national UAV regulations in the context of emergency response and also gives perspective into future trends.",
publisher = "Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе",
journal = "30. симпозијум ДЗЗСЦГ : зборник радова",
title = "Pregled postojećeg regulatornog okvira za bespilotne letelice u evropskim zemljama u kontekstu reagovanja i vežbi reagovanja u vanrednim situacijama, Overview of the existing UAV regulatory framework in European contries in the context of an emergency response and emergency response exercises",
pages = "622-628",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8725"
}

Davidović, M. D., Helbig, A., Nohyl, J.,& Živanović, M. Z.. (2019). Pregled postojećeg regulatornog okvira za bespilotne letelice u evropskim zemljama u kontekstu reagovanja i vežbi reagovanja u vanrednim situacijama. in 30. симпозијум ДЗЗСЦГ : зборник радова
Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе., 622-628.
https://hdl.handle.net/21.15107/rcub_vinar_8725

Davidović MD, Helbig A, Nohyl J, Živanović MZ. Pregled postojećeg regulatornog okvira za bespilotne letelice u evropskim zemljama u kontekstu reagovanja i vežbi reagovanja u vanrednim situacijama. in 30. симпозијум ДЗЗСЦГ : зборник радова. 2019;:622-628.
https://hdl.handle.net/21.15107/rcub_vinar_8725 .

Davidović, Miloš D., Helbig, Alexandra, Nohyl, Jiri, Živanović, Miloš Z., "Pregled postojećeg regulatornog okvira za bespilotne letelice u evropskim zemljama u kontekstu reagovanja i vežbi reagovanja u vanrednim situacijama" in 30. симпозијум ДЗЗСЦГ : зборник радова (2019):622-628,
https://hdl.handle.net/21.15107/rcub_vinar_8725 .

TY  - JOUR
AU  - Davidović, Milena D.
AU  - Davidović, Miloš D.
AU  - Sanz, Angel S.
AU  - Božić, Mirjana
AU  - Vasiljević, Darko
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7965
AB  - In the diffraction pattern produced by a half-plane sharp edge when it obstructs the passage of a laser beam, two characteristic regions are noticeable. There is a central region, where the diffraction of laser light appears in the region of geometric shadow, while intensity oscillations are observed in the non-obstructed area. On both sides of the edge, there are also very long light traces along the normal to the edge of the obstacle. The theoretical explanation of this phenomenon is based on the Fresnel–Kirchhoff diffraction theory applied to the Gaussian beam propagation behind the obstacle. In this paper, we supplement this explanation by considering electromagnetic flow lines, which provide a more complete interpretation of the phenomenon in terms of electric and magnetic fields and flux lines; at the same time, that can be related to average photon paths. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.
T2  - Journal of Russian Laser Research
T1  - Trajectory-Based Interpretation of Laser Light Diffraction by a Sharp Edge
VL  - 39
IS  - 5
SP  - 438
EP  - 447
DO  - 10.1007/s10946-018-9738-9
ER  - 

@article{
author = "Davidović, Milena D. and Davidović, Miloš D. and Sanz, Angel S. and Božić, Mirjana and Vasiljević, Darko",
year = "2018",
abstract = "In the diffraction pattern produced by a half-plane sharp edge when it obstructs the passage of a laser beam, two characteristic regions are noticeable. There is a central region, where the diffraction of laser light appears in the region of geometric shadow, while intensity oscillations are observed in the non-obstructed area. On both sides of the edge, there are also very long light traces along the normal to the edge of the obstacle. The theoretical explanation of this phenomenon is based on the Fresnel–Kirchhoff diffraction theory applied to the Gaussian beam propagation behind the obstacle. In this paper, we supplement this explanation by considering electromagnetic flow lines, which provide a more complete interpretation of the phenomenon in terms of electric and magnetic fields and flux lines; at the same time, that can be related to average photon paths. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.",
journal = "Journal of Russian Laser Research",
title = "Trajectory-Based Interpretation of Laser Light Diffraction by a Sharp Edge",
volume = "39",
number = "5",
pages = "438-447",
doi = "10.1007/s10946-018-9738-9"
}

Davidović, M. D., Davidović, M. D., Sanz, A. S., Božić, M.,& Vasiljević, D.. (2018). Trajectory-Based Interpretation of Laser Light Diffraction by a Sharp Edge. in Journal of Russian Laser Research, 39(5), 438-447.
https://doi.org/10.1007/s10946-018-9738-9

Davidović MD, Davidović MD, Sanz AS, Božić M, Vasiljević D. Trajectory-Based Interpretation of Laser Light Diffraction by a Sharp Edge. in Journal of Russian Laser Research. 2018;39(5):438-447.
doi:10.1007/s10946-018-9738-9 .

Davidović, Milena D., Davidović, Miloš D., Sanz, Angel S., Božić, Mirjana, Vasiljević, Darko, "Trajectory-Based Interpretation of Laser Light Diffraction by a Sharp Edge" in Journal of Russian Laser Research, 39, no. 5 (2018):438-447,
https://doi.org/10.1007/s10946-018-9738-9 . .

TY  - CONF
AU  - Davidović, Miloš
AU  - Topalović, Dušan
AU  - Tasić, Viša
AU  - Jovašević-Stojanović, Milena
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12690
AB  - One of the most important factors for increasing usefulness and relevance of air pollution data on a personal level would certainly be an increase in its spatial resolution. Current state of affairs in air quality monitoring networks at state or local level is such that they typically provide a wealth of high resolution temporal data, but monitoring stations are on the other hand mainly located at a few strategically important places in urban area. This low spatial resolution is a big barrier towards providing personally relevant information to citizens which would then be able to answer questions such as: what is the level of air pollution on routes and places they frequent, what are the associated health risks, and finally what can they do about it and at what cost? Part of the solution to this complex puzzle may be in low-cost air quality sensors (LCS). LCS’s are an emerging technology and are now commercially available for gases, particulate matter and meteorological parameters in a wide variety of designs and capabilities. However, the data sets generated by devices composed of selected LCS are often of questionable data quality. There are some protocols for calibration LCS in laboratory and in the field, but such procedures are extensive and appropriate for testing performance only during sensor development, but are certainly not practically feasible for testing of each commercial LCS [1, 2]. Developing, optimizing, and refining experiments and statistical modelling techniques for LCS-AQ calibration and validation is the mandatory step on the route of obtaining reliable and meaningful data [3, 4]. This work elaborates an important part of LCS deployment – its effective calibration procedure. We will describe our current work on calibration procedures for sensors for gaseous pollutants: ozone and carbon monoxide and sensors for particulate matter. In validation campaigns described in this work we have used combination of quality checks and mid-level validation, together with several statistical modeling approaches in order to observe which sensors have desirable level of performance and to later derive calibration curves or more complex calibration models. Calibration models were based on simple linear regression (LR), multiple linear regression (MLR) and artificial neural networks (ANN). Mid-level validation of particulate matter low cost sensors was done via collocation with lab-grade instruments in laboratory office space in Institute Vinca and the results were collected for several weeks. Low cost instruments included two Sharp GP2Y1010AU0F compact optical dust sensors connected to Arduino platform (1 channel output), Alphasense CompactOPC sensor (16 channels from 0.38 to 17 μm) and Dylos DC1700 PM unit (2 channels corresponding to “large” and “small” particles). Lab grade instruments included TSI NanoScan SMPS Model 3910 and TSI Optical particle sizer 3330 (17 channels from 0.3um to 10um). Basic quality check of two Sharp sensors showed that they did not have malfunctions and are surprisingly reliable when used in combination with Arduino platform. Sharp sensors mutually correlate with correlation coefficient cc~0.98. In comparison with lab grade instruments, they correlate best with OPS first channel cc~0.75 and cc steadily declines for channels corresponding to larger particles. Dylos channels best correlate with OPS 0.5-0.721μm for “small” particles with cc~0.60, and with OPS 2.156 μm for “large” particles with cc~0.978. Best performing low cost sensor was certainly Alphasense OPC with cc over 0.90 for corresponding channels. Performed validation steps clearly show to which particulate matter size range individual sensor channels correspond, enabling one to derive meaningful calibration curves. LCS’s for gaseous pollutants were deployed within multi-sensor platform AQMesh. Platforms were collocated with Automatic Monitoring Station Stari Grad belonging to the State Network run by the Serbian Environmental Protection Agency (SEPA), in two 1-month periods in late summer and early autumn 2015. CO and O3 sensors in AQMesh platform passed low level validation (criteria was percentage of collected data), and were considered for development of calibration models. Choice of predictors for MLR and ANN models utilized both statistical reasoning and heuristics to avoid overfitting calibrated sensor with co-varying gas species. Improvements in sensor performance with sophisticated ANN models compared to LR were significant, resulting in relative residuals less than 15% for concentration of pollutant approximately ranging from 175 μg/m3  to 400 μg/m3 , while for O3 in the range from 40 μg/m3 to 120 μg/m3 .
PB  - Belgrade : Serbian Chemical Society
C3  - ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts
T1  - Towards widespread adoption of low cost air quality sensors - a necessity for effective calibration procedures
SP  - 39
EP  - 40
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12690
ER  - 

@conference{
author = "Davidović, Miloš and Topalović, Dušan and Tasić, Viša and Jovašević-Stojanović, Milena",
year = "2018",
abstract = "One of the most important factors for increasing usefulness and relevance of air pollution data on a personal level would certainly be an increase in its spatial resolution. Current state of affairs in air quality monitoring networks at state or local level is such that they typically provide a wealth of high resolution temporal data, but monitoring stations are on the other hand mainly located at a few strategically important places in urban area. This low spatial resolution is a big barrier towards providing personally relevant information to citizens which would then be able to answer questions such as: what is the level of air pollution on routes and places they frequent, what are the associated health risks, and finally what can they do about it and at what cost? Part of the solution to this complex puzzle may be in low-cost air quality sensors (LCS). LCS’s are an emerging technology and are now commercially available for gases, particulate matter and meteorological parameters in a wide variety of designs and capabilities. However, the data sets generated by devices composed of selected LCS are often of questionable data quality. There are some protocols for calibration LCS in laboratory and in the field, but such procedures are extensive and appropriate for testing performance only during sensor development, but are certainly not practically feasible for testing of each commercial LCS [1, 2]. Developing, optimizing, and refining experiments and statistical modelling techniques for LCS-AQ calibration and validation is the mandatory step on the route of obtaining reliable and meaningful data [3, 4]. This work elaborates an important part of LCS deployment – its effective calibration procedure. We will describe our current work on calibration procedures for sensors for gaseous pollutants: ozone and carbon monoxide and sensors for particulate matter. In validation campaigns described in this work we have used combination of quality checks and mid-level validation, together with several statistical modeling approaches in order to observe which sensors have desirable level of performance and to later derive calibration curves or more complex calibration models. Calibration models were based on simple linear regression (LR), multiple linear regression (MLR) and artificial neural networks (ANN). Mid-level validation of particulate matter low cost sensors was done via collocation with lab-grade instruments in laboratory office space in Institute Vinca and the results were collected for several weeks. Low cost instruments included two Sharp GP2Y1010AU0F compact optical dust sensors connected to Arduino platform (1 channel output), Alphasense CompactOPC sensor (16 channels from 0.38 to 17 μm) and Dylos DC1700 PM unit (2 channels corresponding to “large” and “small” particles). Lab grade instruments included TSI NanoScan SMPS Model 3910 and TSI Optical particle sizer 3330 (17 channels from 0.3um to 10um). Basic quality check of two Sharp sensors showed that they did not have malfunctions and are surprisingly reliable when used in combination with Arduino platform. Sharp sensors mutually correlate with correlation coefficient cc~0.98. In comparison with lab grade instruments, they correlate best with OPS first channel cc~0.75 and cc steadily declines for channels corresponding to larger particles. Dylos channels best correlate with OPS 0.5-0.721μm for “small” particles with cc~0.60, and with OPS 2.156 μm for “large” particles with cc~0.978. Best performing low cost sensor was certainly Alphasense OPC with cc over 0.90 for corresponding channels. Performed validation steps clearly show to which particulate matter size range individual sensor channels correspond, enabling one to derive meaningful calibration curves. LCS’s for gaseous pollutants were deployed within multi-sensor platform AQMesh. Platforms were collocated with Automatic Monitoring Station Stari Grad belonging to the State Network run by the Serbian Environmental Protection Agency (SEPA), in two 1-month periods in late summer and early autumn 2015. CO and O3 sensors in AQMesh platform passed low level validation (criteria was percentage of collected data), and were considered for development of calibration models. Choice of predictors for MLR and ANN models utilized both statistical reasoning and heuristics to avoid overfitting calibrated sensor with co-varying gas species. Improvements in sensor performance with sophisticated ANN models compared to LR were significant, resulting in relative residuals less than 15% for concentration of pollutant approximately ranging from 175 μg/m3  to 400 μg/m3 , while for O3 in the range from 40 μg/m3 to 120 μg/m3 .",
publisher = "Belgrade : Serbian Chemical Society",
journal = "ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts",
title = "Towards widespread adoption of low cost air quality sensors - a necessity for effective calibration procedures",
pages = "39-40",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12690"
}

Davidović, M., Topalović, D., Tasić, V.,& Jovašević-Stojanović, M.. (2018). Towards widespread adoption of low cost air quality sensors - a necessity for effective calibration procedures. in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts
Belgrade : Serbian Chemical Society., 39-40.
https://hdl.handle.net/21.15107/rcub_vinar_12690

Davidović M, Topalović D, Tasić V, Jovašević-Stojanović M. Towards widespread adoption of low cost air quality sensors - a necessity for effective calibration procedures. in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts. 2018;:39-40.
https://hdl.handle.net/21.15107/rcub_vinar_12690 .

Davidović, Miloš, Topalović, Dušan, Tasić, Viša, Jovašević-Stojanović, Milena, "Towards widespread adoption of low cost air quality sensors - a necessity for effective calibration procedures" in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts (2018):39-40,
https://hdl.handle.net/21.15107/rcub_vinar_12690 .

TY  - CONF
AU  - Davidović, Milena D.
AU  - Davidović, Miloš D.
AU  - Davidović, Ljubica D.
AU  - Andreev, Vladimir A.
AU  - Davidović, Dragomir M.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10941
AB  - Many real-world signals, occurring in everyday engineering practice are non-stationary, and as a result, their frequency components may change gradually or abruptly over time. Such signals are typically analyzed using Fourier transform, however, this type of analysis is often not sufficient to reveal the true nature of localized (in time) frequency content. This is where time-frequency analysis (TFA) can be of great help. Several approaches of TFA exist, and in this paper we use Husimi function (Gaussian smoothed Wigner function) for this purpose [1,2,3]. Both the Wigner and Husimi functions are the phase space quasidistributions in quantum mechanics [4,5]. In quantum mechanics, Husimi function of a quantum mechanical state arises when simultaneous measurement of quantum conjugated observables - coordinate and momentum, is performed. Similarly, in signal analysis, conjugated variables are time and frequency. If the measurement has the highest physically possible accuracy (as dictated by the Heisenberg uncertainty relations), then the product of standard deviations of conjugated observables equals  2 and Gaussian smoothed Wigner function for in such a way chosen parameters is known as a Husimi function (HF) [2,5]. In this paper, characteristic signals which describe behavior of several devices used in optics, microwave engineering and plasmonics were obtained via 3D electromagnetic numerical simulations. These signals, and their time and frequency evolution, were then analyzed using specifically tailored HF.
PB  - Belgrade : Institute of Physics Belgrade
C3  - PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts
T1  - Husimi function for time-frequency analysis in optical, microwave and plasmonics aplications
SP  - 59
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10941
ER  - 

@conference{
author = "Davidović, Milena D. and Davidović, Miloš D. and Davidović, Ljubica D. and Andreev, Vladimir A. and Davidović, Dragomir M.",
year = "2017",
abstract = "Many real-world signals, occurring in everyday engineering practice are non-stationary, and as a result, their frequency components may change gradually or abruptly over time. Such signals are typically analyzed using Fourier transform, however, this type of analysis is often not sufficient to reveal the true nature of localized (in time) frequency content. This is where time-frequency analysis (TFA) can be of great help. Several approaches of TFA exist, and in this paper we use Husimi function (Gaussian smoothed Wigner function) for this purpose [1,2,3]. Both the Wigner and Husimi functions are the phase space quasidistributions in quantum mechanics [4,5]. In quantum mechanics, Husimi function of a quantum mechanical state arises when simultaneous measurement of quantum conjugated observables - coordinate and momentum, is performed. Similarly, in signal analysis, conjugated variables are time and frequency. If the measurement has the highest physically possible accuracy (as dictated by the Heisenberg uncertainty relations), then the product of standard deviations of conjugated observables equals  2 and Gaussian smoothed Wigner function for in such a way chosen parameters is known as a Husimi function (HF) [2,5]. In this paper, characteristic signals which describe behavior of several devices used in optics, microwave engineering and plasmonics were obtained via 3D electromagnetic numerical simulations. These signals, and their time and frequency evolution, were then analyzed using specifically tailored HF.",
publisher = "Belgrade : Institute of Physics Belgrade",
journal = "PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts",
title = "Husimi function for time-frequency analysis in optical, microwave and plasmonics aplications",
pages = "59",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10941"
}

Davidović, M. D., Davidović, M. D., Davidović, L. D., Andreev, V. A.,& Davidović, D. M.. (2017). Husimi function for time-frequency analysis in optical, microwave and plasmonics aplications. in PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts
Belgrade : Institute of Physics Belgrade., 59.
https://hdl.handle.net/21.15107/rcub_vinar_10941

Davidović MD, Davidović MD, Davidović LD, Andreev VA, Davidović DM. Husimi function for time-frequency analysis in optical, microwave and plasmonics aplications. in PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts. 2017;:59.
https://hdl.handle.net/21.15107/rcub_vinar_10941 .

Davidović, Milena D., Davidović, Miloš D., Davidović, Ljubica D., Andreev, Vladimir A., Davidović, Dragomir M., "Husimi function for time-frequency analysis in optical, microwave and plasmonics aplications" in PHOTONICA2017 : 6th International School and Conference on Photonics and COST actions: MP1406 and MP1402 : Program and the book of abstracts (2017):59,
https://hdl.handle.net/21.15107/rcub_vinar_10941 .