Krstić, Dragan

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  • Krstić, Dragan (11)
Projects

Author's Bibliography

Correlation Of Light Wavelengths On Spectral Camera And Vegetation Indexes In Barley Crop Scouting

Simonović, Vojislav; Simonović, Andrej; Marković, Dragan; Krstić, Dragan; Medojević, Ivana; Zlatanović, Ivan

(Scientific-Technical Union of Mechanical Engineering, 2020)

TY  - CONF
AU  - Simonović, Vojislav
AU  - Simonović, Andrej
AU  - Marković, Dragan
AU  - Krstić, Dragan
AU  - Medojević, Ivana
AU  - Zlatanović, Ivan
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4963
AB  - This paper presents a case study of a barley field experiment that was periodically scouted using a drone spectral camera. The camera has 4 bands so barley was scouted using 4 wavelengths of light - Green, Red, Red Edge and Nir Infra Red (NIR). Based on these wavelengths it is possible to calculate different vegetation indexes known in science and practice. In this paper, 15 such indices were used. The research work concerned the observation of correlation between individual wavelengths and corresponding vegetation indexes. This paper seeks to emphasize the importance of particular wavelengths and spectral areas in crop scouting
PB  - Scientific-Technical Union of Mechanical Engineering
C3  - Agricultureal Machinery 2020, VIII International scientific congress, 24th – 27th June 2020, Varna, Bulgaria
T1  - Correlation Of Light Wavelengths On Spectral Camera And Vegetation Indexes In Barley Crop Scouting
EP  - 12
SP  - 10
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4963
ER  - 
@conference{
author = "Simonović, Vojislav and Simonović, Andrej and Marković, Dragan and Krstić, Dragan and Medojević, Ivana and Zlatanović, Ivan",
year = "2020",
abstract = "This paper presents a case study of a barley field experiment that was periodically scouted using a drone spectral camera. The camera has 4 bands so barley was scouted using 4 wavelengths of light - Green, Red, Red Edge and Nir Infra Red (NIR). Based on these wavelengths it is possible to calculate different vegetation indexes known in science and practice. In this paper, 15 such indices were used. The research work concerned the observation of correlation between individual wavelengths and corresponding vegetation indexes. This paper seeks to emphasize the importance of particular wavelengths and spectral areas in crop scouting",
publisher = "Scientific-Technical Union of Mechanical Engineering",
journal = "Agricultureal Machinery 2020, VIII International scientific congress, 24th – 27th June 2020, Varna, Bulgaria",
title = "Correlation Of Light Wavelengths On Spectral Camera And Vegetation Indexes In Barley Crop Scouting",
pages = "12-10",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4963"
}
Simonović, V., Simonović, A., Marković, D., Krstić, D., Medojević, I.,& Zlatanović, I.. (2020). Correlation Of Light Wavelengths On Spectral Camera And Vegetation Indexes In Barley Crop Scouting. in Agricultureal Machinery 2020, VIII International scientific congress, 24th – 27th June 2020, Varna, Bulgaria
Scientific-Technical Union of Mechanical Engineering., 10-12.
https://hdl.handle.net/21.15107/rcub_machinery_4963
Simonović V, Simonović A, Marković D, Krstić D, Medojević I, Zlatanović I. Correlation Of Light Wavelengths On Spectral Camera And Vegetation Indexes In Barley Crop Scouting. in Agricultureal Machinery 2020, VIII International scientific congress, 24th – 27th June 2020, Varna, Bulgaria. 2020;:10-12.
https://hdl.handle.net/21.15107/rcub_machinery_4963 .
Simonović, Vojislav, Simonović, Andrej, Marković, Dragan, Krstić, Dragan, Medojević, Ivana, Zlatanović, Ivan, "Correlation Of Light Wavelengths On Spectral Camera And Vegetation Indexes In Barley Crop Scouting" in Agricultureal Machinery 2020, VIII International scientific congress, 24th – 27th June 2020, Varna, Bulgaria (2020):10-12,
https://hdl.handle.net/21.15107/rcub_machinery_4963 .

Impact Of Industry 4.0 On Agricultural Industry

Simonović, Andrej; Simonović, Vojislav; Marković, Dragan; Krstić, Dragan

(SCIENTIFIC-TECHNICAL UNION of MECHANICAL ENGINEERING “INDUSTRY 4.0", 2020)

TY  - CONF
AU  - Simonović, Andrej
AU  - Simonović, Vojislav
AU  - Marković, Dragan
AU  - Krstić, Dragan
PY  - 2020
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4980
AB  - Industry 4.0 represents the newest generation of industry development. Every day the various demands in industry are getting more and more demanding. The demand for shorter production and delivery time, more efficient and automated processes has led us to the Industry 4.0. It is necessary to include and integrate the latest developments based on digital technologies as well as the interoperability process across them. The goals is to enable companies to transmit information in real time in terms of performance and behaviour. Industry 4.0 can be applied to any branch of industry. Agricultural industry is no exception. As far as agricultural machinery is concerned, it is a very important part of agricultural industry. Agricultural machinery incorporates electronic controls and it is a part of digital age, enhancing their current performance. In addition to the electronics, using sensors and drones, supports the data collection of several agriculture key 
aspects, such as weather, animals and crops behaviour, geographical spatialization, etc. The main tasks are how to apply the right methods and methodologies in order to support a better supply chain decision-making process, how to automate the process and how can Industry 
4.0 help a person, who is in agricultural industry, in order to make effective decisions based on objective data.
PB  - SCIENTIFIC-TECHNICAL UNION of MECHANICAL ENGINEERING “INDUSTRY 4.0"
C3  - TECHNOLOGICAL BASIS OF "INDUSTRY 4.0" SOCIETY & „INDUSTRY 4.0"
T1  - Impact Of Industry 4.0 On Agricultural Industry
EP  - 93
IS  - 9
SP  - 91
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4980
ER  - 
@conference{
author = "Simonović, Andrej and Simonović, Vojislav and Marković, Dragan and Krstić, Dragan",
year = "2020",
abstract = "Industry 4.0 represents the newest generation of industry development. Every day the various demands in industry are getting more and more demanding. The demand for shorter production and delivery time, more efficient and automated processes has led us to the Industry 4.0. It is necessary to include and integrate the latest developments based on digital technologies as well as the interoperability process across them. The goals is to enable companies to transmit information in real time in terms of performance and behaviour. Industry 4.0 can be applied to any branch of industry. Agricultural industry is no exception. As far as agricultural machinery is concerned, it is a very important part of agricultural industry. Agricultural machinery incorporates electronic controls and it is a part of digital age, enhancing their current performance. In addition to the electronics, using sensors and drones, supports the data collection of several agriculture key 
aspects, such as weather, animals and crops behaviour, geographical spatialization, etc. The main tasks are how to apply the right methods and methodologies in order to support a better supply chain decision-making process, how to automate the process and how can Industry 
4.0 help a person, who is in agricultural industry, in order to make effective decisions based on objective data.",
publisher = "SCIENTIFIC-TECHNICAL UNION of MECHANICAL ENGINEERING “INDUSTRY 4.0"",
journal = "TECHNOLOGICAL BASIS OF "INDUSTRY 4.0" SOCIETY & „INDUSTRY 4.0"",
title = "Impact Of Industry 4.0 On Agricultural Industry",
pages = "93-91",
number = "9",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4980"
}
Simonović, A., Simonović, V., Marković, D.,& Krstić, D.. (2020). Impact Of Industry 4.0 On Agricultural Industry. in TECHNOLOGICAL BASIS OF "INDUSTRY 4.0" SOCIETY & „INDUSTRY 4.0"
SCIENTIFIC-TECHNICAL UNION of MECHANICAL ENGINEERING “INDUSTRY 4.0"., 2(9), 91-93.
https://hdl.handle.net/21.15107/rcub_machinery_4980
Simonović A, Simonović V, Marković D, Krstić D. Impact Of Industry 4.0 On Agricultural Industry. in TECHNOLOGICAL BASIS OF "INDUSTRY 4.0" SOCIETY & „INDUSTRY 4.0". 2020;2(9):91-93.
https://hdl.handle.net/21.15107/rcub_machinery_4980 .
Simonović, Andrej, Simonović, Vojislav, Marković, Dragan, Krstić, Dragan, "Impact Of Industry 4.0 On Agricultural Industry" in TECHNOLOGICAL BASIS OF "INDUSTRY 4.0" SOCIETY & „INDUSTRY 4.0", 2, no. 9 (2020):91-93,
https://hdl.handle.net/21.15107/rcub_machinery_4980 .

Sprega konvenvionalnih i obnovljivih izvora energije u okviru tehnološke linije za rashlađivanje i skladištenje voća

Živković, Branislav; Kosi, Franc; Marković, Dragan; Milovančević, Uroš; Stojković, Milena; Sretenović, Aleksandra; Krstić, Dragan

(2015)

TY  - GEN
AU  - Živković, Branislav
AU  - Kosi, Franc
AU  - Marković, Dragan
AU  - Milovančević, Uroš
AU  - Stojković, Milena
AU  - Sretenović, Aleksandra
AU  - Krstić, Dragan
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5196
T1  - Sprega konvenvionalnih i obnovljivih izvora energije u okviru tehnološke linije za rashlađivanje i skladištenje voća
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5196
ER  - 
@misc{
author = "Živković, Branislav and Kosi, Franc and Marković, Dragan and Milovančević, Uroš and Stojković, Milena and Sretenović, Aleksandra and Krstić, Dragan",
year = "2015",
title = "Sprega konvenvionalnih i obnovljivih izvora energije u okviru tehnološke linije za rashlađivanje i skladištenje voća",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5196"
}
Živković, B., Kosi, F., Marković, D., Milovančević, U., Stojković, M., Sretenović, A.,& Krstić, D.. (2015). Sprega konvenvionalnih i obnovljivih izvora energije u okviru tehnološke linije za rashlađivanje i skladištenje voća. .
https://hdl.handle.net/21.15107/rcub_machinery_5196
Živković B, Kosi F, Marković D, Milovančević U, Stojković M, Sretenović A, Krstić D. Sprega konvenvionalnih i obnovljivih izvora energije u okviru tehnološke linije za rashlađivanje i skladištenje voća. 2015;.
https://hdl.handle.net/21.15107/rcub_machinery_5196 .
Živković, Branislav, Kosi, Franc, Marković, Dragan, Milovančević, Uroš, Stojković, Milena, Sretenović, Aleksandra, Krstić, Dragan, "Sprega konvenvionalnih i obnovljivih izvora energije u okviru tehnološke linije za rashlađivanje i skladištenje voća" (2015),
https://hdl.handle.net/21.15107/rcub_machinery_5196 .

Indirektni sistem za skladištenje osetljivih vrsta voća u kontrolisanoj atmosferi

Kosi, Franc; Marković, Dragan; Živković, Branislav; Pokrajac, Slobodan; Stojković, Milena; Sretenović, Aleksandra; Krstić, Dragan

(2015)

TY  - GEN
AU  - Kosi, Franc
AU  - Marković, Dragan
AU  - Živković, Branislav
AU  - Pokrajac, Slobodan
AU  - Stojković, Milena
AU  - Sretenović, Aleksandra
AU  - Krstić, Dragan
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/5195
T1  - Indirektni sistem za skladištenje osetljivih vrsta voća u kontrolisanoj atmosferi
UR  - https://hdl.handle.net/21.15107/rcub_machinery_5195
ER  - 
@misc{
author = "Kosi, Franc and Marković, Dragan and Živković, Branislav and Pokrajac, Slobodan and Stojković, Milena and Sretenović, Aleksandra and Krstić, Dragan",
year = "2015",
title = "Indirektni sistem za skladištenje osetljivih vrsta voća u kontrolisanoj atmosferi",
url = "https://hdl.handle.net/21.15107/rcub_machinery_5195"
}
Kosi, F., Marković, D., Živković, B., Pokrajac, S., Stojković, M., Sretenović, A.,& Krstić, D.. (2015). Indirektni sistem za skladištenje osetljivih vrsta voća u kontrolisanoj atmosferi. .
https://hdl.handle.net/21.15107/rcub_machinery_5195
Kosi F, Marković D, Živković B, Pokrajac S, Stojković M, Sretenović A, Krstić D. Indirektni sistem za skladištenje osetljivih vrsta voća u kontrolisanoj atmosferi. 2015;.
https://hdl.handle.net/21.15107/rcub_machinery_5195 .
Kosi, Franc, Marković, Dragan, Živković, Branislav, Pokrajac, Slobodan, Stojković, Milena, Sretenović, Aleksandra, Krstić, Dragan, "Indirektni sistem za skladištenje osetljivih vrsta voća u kontrolisanoj atmosferi" (2015),
https://hdl.handle.net/21.15107/rcub_machinery_5195 .

Anthropometric assessment of crane cabins and recommendations for design: A case study

Žunjić, Aleksandar; Spasojević Brkić, Vesna; Klarin, Milivoj; Brkić, Aleksandar; Krstić, Dragan

(IOS Press, Amsterdam, 2015)

TY  - JOUR
AU  - Žunjić, Aleksandar
AU  - Spasojević Brkić, Vesna
AU  - Klarin, Milivoj
AU  - Brkić, Aleksandar
AU  - Krstić, Dragan
PY  - 2015
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2097
AB  - BACKGROUND: Work of crane operators is very difficult and demanding. Therefore, it is very important that the cabin of a crane be designed on the basis of relevant anthropometric data. However, it is very difficult to find a research that considers anthropometric convenience of crane cabins. OBJECTIVE: From the theoretical viewpoint, it is important to perceive and to classify effects of the anthropometric incompatibility of crane cabins. Globally, the objective is to consider the anthropometric convenience of existing crane cabins, and possibilities for improvements of their design from the ergonomic point of view. In this regard, it is significant to detect constraints that impede or hinder the work of the crane operators, which could be overcome with certain anthropometric solutions. The main objective is to examine whether and to what extent is justifiable to use anthropometric data that are obtained on the basis of general (national) population, during designing the crane cabins. METHODS: For the assessment of existing crane cabins and the work of operators, four methods were used: observation of the work of the operators and design solutions of the cabins, the checklist approach, interviewing of operators and the experimental research based on obtaining the data on the population of crane operators. RESULTS: Results of the analysis based on the method of observation, analysis based on the application of the checklist, as well as interviewing of the operators indicate that certain construction constraints of the components in the cabins are the main reasons of reduced visibility and improper working postures of operators. All this has caused the emergence of continuous musculoskeletal loading of the crane operators. The results of the anthropometric research that were obtained on the population of crane operators in this case study suggest that there is a statistically significant difference, when compared data of this population of workers with anthropometric data from the general population. CONCLUSIONS: Analyzed workplaces in crane cabins do not correspond to the majority of operators from the anthropometric standpoint. The conducted anthropometric analysis has been indicated that could be made the mistake, if dimensions of the cabin and layout of equipment would be relied on data derived from the general population of citizens. In order to achieve greater precision in the design and configuration of equipment, it is recommended using the data that are obtained directly on the population of the crane operators when designing the cabin.
PB  - IOS Press, Amsterdam
T2  - Work-A Journal of Prevention Assessment & Rehabilitation
T1  - Anthropometric assessment of crane cabins and recommendations for design: A case study
EP  - 194
IS  - 1
SP  - 185
VL  - 52
DO  - 10.3233/WOR-152042
ER  - 
@article{
author = "Žunjić, Aleksandar and Spasojević Brkić, Vesna and Klarin, Milivoj and Brkić, Aleksandar and Krstić, Dragan",
year = "2015",
abstract = "BACKGROUND: Work of crane operators is very difficult and demanding. Therefore, it is very important that the cabin of a crane be designed on the basis of relevant anthropometric data. However, it is very difficult to find a research that considers anthropometric convenience of crane cabins. OBJECTIVE: From the theoretical viewpoint, it is important to perceive and to classify effects of the anthropometric incompatibility of crane cabins. Globally, the objective is to consider the anthropometric convenience of existing crane cabins, and possibilities for improvements of their design from the ergonomic point of view. In this regard, it is significant to detect constraints that impede or hinder the work of the crane operators, which could be overcome with certain anthropometric solutions. The main objective is to examine whether and to what extent is justifiable to use anthropometric data that are obtained on the basis of general (national) population, during designing the crane cabins. METHODS: For the assessment of existing crane cabins and the work of operators, four methods were used: observation of the work of the operators and design solutions of the cabins, the checklist approach, interviewing of operators and the experimental research based on obtaining the data on the population of crane operators. RESULTS: Results of the analysis based on the method of observation, analysis based on the application of the checklist, as well as interviewing of the operators indicate that certain construction constraints of the components in the cabins are the main reasons of reduced visibility and improper working postures of operators. All this has caused the emergence of continuous musculoskeletal loading of the crane operators. The results of the anthropometric research that were obtained on the population of crane operators in this case study suggest that there is a statistically significant difference, when compared data of this population of workers with anthropometric data from the general population. CONCLUSIONS: Analyzed workplaces in crane cabins do not correspond to the majority of operators from the anthropometric standpoint. The conducted anthropometric analysis has been indicated that could be made the mistake, if dimensions of the cabin and layout of equipment would be relied on data derived from the general population of citizens. In order to achieve greater precision in the design and configuration of equipment, it is recommended using the data that are obtained directly on the population of the crane operators when designing the cabin.",
publisher = "IOS Press, Amsterdam",
journal = "Work-A Journal of Prevention Assessment & Rehabilitation",
title = "Anthropometric assessment of crane cabins and recommendations for design: A case study",
pages = "194-185",
number = "1",
volume = "52",
doi = "10.3233/WOR-152042"
}
Žunjić, A., Spasojević Brkić, V., Klarin, M., Brkić, A.,& Krstić, D.. (2015). Anthropometric assessment of crane cabins and recommendations for design: A case study. in Work-A Journal of Prevention Assessment & Rehabilitation
IOS Press, Amsterdam., 52(1), 185-194.
https://doi.org/10.3233/WOR-152042
Žunjić A, Spasojević Brkić V, Klarin M, Brkić A, Krstić D. Anthropometric assessment of crane cabins and recommendations for design: A case study. in Work-A Journal of Prevention Assessment & Rehabilitation. 2015;52(1):185-194.
doi:10.3233/WOR-152042 .
Žunjić, Aleksandar, Spasojević Brkić, Vesna, Klarin, Milivoj, Brkić, Aleksandar, Krstić, Dragan, "Anthropometric assessment of crane cabins and recommendations for design: A case study" in Work-A Journal of Prevention Assessment & Rehabilitation, 52, no. 1 (2015):185-194,
https://doi.org/10.3233/WOR-152042 . .
6
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14

Interior Space Design Optimization of Passenger Cars in Serbia

Klarin, Milivoj; Spasojević Brkić, Vesna; Sajfert, Zvonko; Pavlović, A. M.; Krstić, Dragan

(Scientific Publishers, 2014)

TY  - JOUR
AU  - Klarin, Milivoj
AU  - Spasojević Brkić, Vesna
AU  - Sajfert, Zvonko
AU  - Pavlović, A. M.
AU  - Krstić, Dragan
PY  - 2014
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/2052
AB  - This study proves that in addition to the angles between the anthropometric measurements, passenger car interior space optimization in terms of ergonomic adjustment is most heavily influenced by the totals of the anthropometric measurements for lower leg length, upper leg length and sitting height for the same overall totals, which are individually different. The regularities of the anthropometric measurement mechanism as well as their geometry and kinematics of movement have been compared with the mechanical mechanism, so that according to new methodology the vehicle has been designed for wider range of drivers. The optimal space is defined within a coordinate system with the origin at the fixed "O" point of contact between the driver's heel and the car floor in front of the accelerator pedal. The designed optimal roof-floor space height for the driver along the z-axis amounts to 1250 mm, and the distance from the fixed "O" point backwards along the x-axis is 1180 mm, while the distance from the zero point for feet accommodation forwards along the x-axis equals 330 mm. The adjustability of the seat-floor height ranges from 190 mm to 300 mm. The horizontal movement of the seat amounts to 250 mm.
PB  - Scientific Publishers
T2  - Journal of Scientific and Industrial Research
T1  - Interior Space Design Optimization of Passenger Cars in Serbia
EP  - 341
IS  - 5
SP  - 338
VL  - 73
UR  - https://hdl.handle.net/21.15107/rcub_machinery_2052
ER  - 
@article{
author = "Klarin, Milivoj and Spasojević Brkić, Vesna and Sajfert, Zvonko and Pavlović, A. M. and Krstić, Dragan",
year = "2014",
abstract = "This study proves that in addition to the angles between the anthropometric measurements, passenger car interior space optimization in terms of ergonomic adjustment is most heavily influenced by the totals of the anthropometric measurements for lower leg length, upper leg length and sitting height for the same overall totals, which are individually different. The regularities of the anthropometric measurement mechanism as well as their geometry and kinematics of movement have been compared with the mechanical mechanism, so that according to new methodology the vehicle has been designed for wider range of drivers. The optimal space is defined within a coordinate system with the origin at the fixed "O" point of contact between the driver's heel and the car floor in front of the accelerator pedal. The designed optimal roof-floor space height for the driver along the z-axis amounts to 1250 mm, and the distance from the fixed "O" point backwards along the x-axis is 1180 mm, while the distance from the zero point for feet accommodation forwards along the x-axis equals 330 mm. The adjustability of the seat-floor height ranges from 190 mm to 300 mm. The horizontal movement of the seat amounts to 250 mm.",
publisher = "Scientific Publishers",
journal = "Journal of Scientific and Industrial Research",
title = "Interior Space Design Optimization of Passenger Cars in Serbia",
pages = "341-338",
number = "5",
volume = "73",
url = "https://hdl.handle.net/21.15107/rcub_machinery_2052"
}
Klarin, M., Spasojević Brkić, V., Sajfert, Z., Pavlović, A. M.,& Krstić, D.. (2014). Interior Space Design Optimization of Passenger Cars in Serbia. in Journal of Scientific and Industrial Research
Scientific Publishers., 73(5), 338-341.
https://hdl.handle.net/21.15107/rcub_machinery_2052
Klarin M, Spasojević Brkić V, Sajfert Z, Pavlović AM, Krstić D. Interior Space Design Optimization of Passenger Cars in Serbia. in Journal of Scientific and Industrial Research. 2014;73(5):338-341.
https://hdl.handle.net/21.15107/rcub_machinery_2052 .
Klarin, Milivoj, Spasojević Brkić, Vesna, Sajfert, Zvonko, Pavlović, A. M., Krstić, Dragan, "Interior Space Design Optimization of Passenger Cars in Serbia" in Journal of Scientific and Industrial Research, 73, no. 5 (2014):338-341,
https://hdl.handle.net/21.15107/rcub_machinery_2052 .
1

PARAMETER OPTIMIZATION OF MESH CLEANING FOR TUBERS VEGETABLES IN HARVESTING

Marković, Dragan; Kosanić, Nenad; Simonović, Vojislav; Marković, Ivana; Krstić, Dragan

(2013)

TY  - CONF
AU  - Marković, Dragan
AU  - Kosanić, Nenad
AU  - Simonović, Vojislav
AU  - Marković, Ivana
AU  - Krstić, Dragan
PY  - 2013
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4943
AB  - Mesh cleaning for tubers vegetables in harvesters subject to oscillations and can be modeled as a 
system of mass-spring-damper. This paper presents a detailed analysis of the mathematical model and discussed a variety of options depending on the degree of attenuation. Shown the time  response of the system. The application of this work is in the design of mesh cleaning, especially in terms of energy efficiency. The research results can be applied to the entire hydraulic system, or in a separate part of the system.
C3  - 13th International Conference: Research and Development in Mechanical Industry, RaDMI 2013
T1  - PARAMETER OPTIMIZATION OF MESH CLEANING FOR  TUBERS VEGETABLES IN HARVESTING
EP  - 835
SP  - 832
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4943
ER  - 
@conference{
author = "Marković, Dragan and Kosanić, Nenad and Simonović, Vojislav and Marković, Ivana and Krstić, Dragan",
year = "2013",
abstract = "Mesh cleaning for tubers vegetables in harvesters subject to oscillations and can be modeled as a 
system of mass-spring-damper. This paper presents a detailed analysis of the mathematical model and discussed a variety of options depending on the degree of attenuation. Shown the time  response of the system. The application of this work is in the design of mesh cleaning, especially in terms of energy efficiency. The research results can be applied to the entire hydraulic system, or in a separate part of the system.",
journal = "13th International Conference: Research and Development in Mechanical Industry, RaDMI 2013",
title = "PARAMETER OPTIMIZATION OF MESH CLEANING FOR  TUBERS VEGETABLES IN HARVESTING",
pages = "835-832",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4943"
}
Marković, D., Kosanić, N., Simonović, V., Marković, I.,& Krstić, D.. (2013). PARAMETER OPTIMIZATION OF MESH CLEANING FOR  TUBERS VEGETABLES IN HARVESTING. in 13th International Conference: Research and Development in Mechanical Industry, RaDMI 2013, 832-835.
https://hdl.handle.net/21.15107/rcub_machinery_4943
Marković D, Kosanić N, Simonović V, Marković I, Krstić D. PARAMETER OPTIMIZATION OF MESH CLEANING FOR  TUBERS VEGETABLES IN HARVESTING. in 13th International Conference: Research and Development in Mechanical Industry, RaDMI 2013. 2013;:832-835.
https://hdl.handle.net/21.15107/rcub_machinery_4943 .
Marković, Dragan, Kosanić, Nenad, Simonović, Vojislav, Marković, Ivana, Krstić, Dragan, "PARAMETER OPTIMIZATION OF MESH CLEANING FOR  TUBERS VEGETABLES IN HARVESTING" in 13th International Conference: Research and Development in Mechanical Industry, RaDMI 2013 (2013):832-835,
https://hdl.handle.net/21.15107/rcub_machinery_4943 .

Using different color spaces in mechanical inspection of fruits and vegetables

Marković, Ivana; Ilić, Jelena; Marković, Dragan; Simonović, Vojislav; Krstić, Dragan; Šakota, Jovana

(Vrnjačka Banja : SaTCIP (Scientific and Technical Center for Intellectual Property) Ltd., 2013)

TY  - CONF
AU  - Marković, Ivana
AU  - Ilić, Jelena
AU  - Marković, Dragan
AU  - Simonović, Vojislav
AU  - Krstić, Dragan
AU  - Šakota, Jovana
PY  - 2013
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/4645
AB  - This paper presents the significant elements of a computer vision system and emphasises the important aspects of the image processing technique coupled with a review of the most recent developments throughout the food industry. Recently automatic inspection systems, mainly based on camera-computer technology have been investigated for the sensory analysis of agricultural and food products. This system known as computer vision has proven to be successful for objective measurement of various agricultural and food products. Computer vision is the construction of explicit and meaningful descriptions of physical objects from images. This review presents the recent developments and applications of image analysis in the food industry, the basic concepts and technologies associated with computer vision.
PB  - Vrnjačka Banja : SaTCIP (Scientific and Technical Center for Intellectual Property) Ltd.
C3  - Proceedings of the 13th International conference “Research and development in mechanical industry” RaDMI 2013
T1  - Using different color spaces in mechanical inspection of fruits and vegetables
EP  - 704
SP  - 700
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_machinery_4645
ER  - 
@conference{
author = "Marković, Ivana and Ilić, Jelena and Marković, Dragan and Simonović, Vojislav and Krstić, Dragan and Šakota, Jovana",
year = "2013",
abstract = "This paper presents the significant elements of a computer vision system and emphasises the important aspects of the image processing technique coupled with a review of the most recent developments throughout the food industry. Recently automatic inspection systems, mainly based on camera-computer technology have been investigated for the sensory analysis of agricultural and food products. This system known as computer vision has proven to be successful for objective measurement of various agricultural and food products. Computer vision is the construction of explicit and meaningful descriptions of physical objects from images. This review presents the recent developments and applications of image analysis in the food industry, the basic concepts and technologies associated with computer vision.",
publisher = "Vrnjačka Banja : SaTCIP (Scientific and Technical Center for Intellectual Property) Ltd.",
journal = "Proceedings of the 13th International conference “Research and development in mechanical industry” RaDMI 2013",
title = "Using different color spaces in mechanical inspection of fruits and vegetables",
pages = "704-700",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_machinery_4645"
}
Marković, I., Ilić, J., Marković, D., Simonović, V., Krstić, D.,& Šakota, J.. (2013). Using different color spaces in mechanical inspection of fruits and vegetables. in Proceedings of the 13th International conference “Research and development in mechanical industry” RaDMI 2013
Vrnjačka Banja : SaTCIP (Scientific and Technical Center for Intellectual Property) Ltd.., 1, 700-704.
https://hdl.handle.net/21.15107/rcub_machinery_4645
Marković I, Ilić J, Marković D, Simonović V, Krstić D, Šakota J. Using different color spaces in mechanical inspection of fruits and vegetables. in Proceedings of the 13th International conference “Research and development in mechanical industry” RaDMI 2013. 2013;1:700-704.
https://hdl.handle.net/21.15107/rcub_machinery_4645 .
Marković, Ivana, Ilić, Jelena, Marković, Dragan, Simonović, Vojislav, Krstić, Dragan, Šakota, Jovana, "Using different color spaces in mechanical inspection of fruits and vegetables" in Proceedings of the 13th International conference “Research and development in mechanical industry” RaDMI 2013, 1 (2013):700-704,
https://hdl.handle.net/21.15107/rcub_machinery_4645 .

State and potentials of use mechanization in vegetable production in Serbia

Marković, Dragan; Simonović, Vojislav; Marković, Ivana; Krstić, Dragan

(Univ Novi Sad, Fac Tech Sci, Adeko, Novi Sad, 2012)

TY  - CONF
AU  - Marković, Dragan
AU  - Simonović, Vojislav
AU  - Marković, Ivana
AU  - Krstić, Dragan
PY  - 2012
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1376
AB  - Vegetable production is one of the most intensive industry crop production, indicated by the size of the yield per unit area, earned income, net income and the share of human labor. To achieve high yield and get a quality product, the most important operations in the primary production of vegetables, after preparing the soil, is seeding. This paper presents the technical indicators of sowing devices that significantly affects the quality of sowing. Great progress made to improve the operation and functionality of existing planting equipment and seeder themselves related to the calibration of seeds that must be achieved by applying prescribed legal and appropriate standards.
PB  - Univ Novi Sad, Fac Tech Sci, Adeko, Novi Sad
C3  - Machine and Industrial Design in Mechanical Engineering, Seventh International Symposium, Kod 2012
T1  - State and potentials of use mechanization in vegetable production in Serbia
EP  - 242
SP  - 239
UR  - https://hdl.handle.net/21.15107/rcub_machinery_1376
ER  - 
@conference{
author = "Marković, Dragan and Simonović, Vojislav and Marković, Ivana and Krstić, Dragan",
year = "2012",
abstract = "Vegetable production is one of the most intensive industry crop production, indicated by the size of the yield per unit area, earned income, net income and the share of human labor. To achieve high yield and get a quality product, the most important operations in the primary production of vegetables, after preparing the soil, is seeding. This paper presents the technical indicators of sowing devices that significantly affects the quality of sowing. Great progress made to improve the operation and functionality of existing planting equipment and seeder themselves related to the calibration of seeds that must be achieved by applying prescribed legal and appropriate standards.",
publisher = "Univ Novi Sad, Fac Tech Sci, Adeko, Novi Sad",
journal = "Machine and Industrial Design in Mechanical Engineering, Seventh International Symposium, Kod 2012",
title = "State and potentials of use mechanization in vegetable production in Serbia",
pages = "242-239",
url = "https://hdl.handle.net/21.15107/rcub_machinery_1376"
}
Marković, D., Simonović, V., Marković, I.,& Krstić, D.. (2012). State and potentials of use mechanization in vegetable production in Serbia. in Machine and Industrial Design in Mechanical Engineering, Seventh International Symposium, Kod 2012
Univ Novi Sad, Fac Tech Sci, Adeko, Novi Sad., 239-242.
https://hdl.handle.net/21.15107/rcub_machinery_1376
Marković D, Simonović V, Marković I, Krstić D. State and potentials of use mechanization in vegetable production in Serbia. in Machine and Industrial Design in Mechanical Engineering, Seventh International Symposium, Kod 2012. 2012;:239-242.
https://hdl.handle.net/21.15107/rcub_machinery_1376 .
Marković, Dragan, Simonović, Vojislav, Marković, Ivana, Krstić, Dragan, "State and potentials of use mechanization in vegetable production in Serbia" in Machine and Industrial Design in Mechanical Engineering, Seventh International Symposium, Kod 2012 (2012):239-242,
https://hdl.handle.net/21.15107/rcub_machinery_1376 .

Analiza ekonomskih pokazatelja u primeni GPS tehnologije u Poljoprivrednom kombinatu Beograd

Marković, Dragan; Krstić, Dragan; Simonović, Vojislav; Marković, Ivana

(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2012)

TY  - JOUR
AU  - Marković, Dragan
AU  - Krstić, Dragan
AU  - Simonović, Vojislav
AU  - Marković, Ivana
PY  - 2012
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1392
AB  - U ovom radu ispitan je stepen ušteda pri primeni najsavremenijih tehničkih sistema za satelitsko navođenje i automatsko upravljanje pri obavljanju poljoprivrednih operacija tokom cele sezone. Uzorno imanje bila je Poljoprivredna korporacija Beograd koja se prostire na oko 21.000 hektara obradive površine. Analiziran je uticaj oblika parcele i pravca kretanja agregata traktor-priključna mašina pri kalkulisanju ušteda usled smanjenja preklopa susednih prohoda. Izvršena je analiza ušteda po kulturama (kukuruz, pšenica, soja, šećerna repa i detelina) i po operacijama za svaku kulturu pojedinačno, prema tehnologiji proizvodnje primenjenoj na uzornom imanju. Detaljno su prikazani podaci samo za kukuruz. Poređenjem ostvarenih stepena uštede zaključeno je pri kojim operacijama je primena navođenja ekonomski najopravdanija i koliki nivo opremljenosti uređajima za navođenje i upravljanje je potreban. Posebno je analizirana funkcionalna zavisnost ekonomskih ušteda u gorivu i inputima za operacije distribucije mineralnog hraniva i hemijske zaštite biljaka. Tabelarno je data procena stepena svih očekivanih ušteda za operacije koje se odnose na pet analiziranih kultura. .
AB  - This paper examined the level of savings in the application of modern technical systems for satellite guidance and control over performing agricultural operations throughout the season. The exemplary property was Agricultural Corporation Belgrade (PKB), which covers about 21.000 hectares of arable land. The effects of plot shape and direction of movement of tractor-attachment units in calculating the savings from reduced overlapping of adjacent passes were studied. The analysis was carried out of savings per crop (maize, wheat, soybean, sugar beet and alfalfa) and the operations for each crop separately, based on the manufacturing technology applied to an exemplary property. Detailed data are shown only for maize. Comparing the achieved level of savings, the application of guidance for the type of the most economically viable operations was found as well as the needed equipment level of guidance devices and management. In particular, the analysis involved the functional dependence of the economic savings in fuel and inputs for the operations such as mineral fertilizers distribution and chemical plant protection. Tabulated are the data estimates for the degree of anticipated savings for operations related to the five analyzed crops. .
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd
T2  - Poljoprivredna tehnika
T1  - Analiza ekonomskih pokazatelja u primeni GPS tehnologije u Poljoprivrednom kombinatu Beograd
T1  - Analysis of economic indicators for GPS technologies application in Agricultural Corporation Belgrade (PKB)
EP  - 88
IS  - 4
SP  - 79
VL  - 37
UR  - https://hdl.handle.net/21.15107/rcub_machinery_1392
ER  - 
@article{
author = "Marković, Dragan and Krstić, Dragan and Simonović, Vojislav and Marković, Ivana",
year = "2012",
abstract = "U ovom radu ispitan je stepen ušteda pri primeni najsavremenijih tehničkih sistema za satelitsko navođenje i automatsko upravljanje pri obavljanju poljoprivrednih operacija tokom cele sezone. Uzorno imanje bila je Poljoprivredna korporacija Beograd koja se prostire na oko 21.000 hektara obradive površine. Analiziran je uticaj oblika parcele i pravca kretanja agregata traktor-priključna mašina pri kalkulisanju ušteda usled smanjenja preklopa susednih prohoda. Izvršena je analiza ušteda po kulturama (kukuruz, pšenica, soja, šećerna repa i detelina) i po operacijama za svaku kulturu pojedinačno, prema tehnologiji proizvodnje primenjenoj na uzornom imanju. Detaljno su prikazani podaci samo za kukuruz. Poređenjem ostvarenih stepena uštede zaključeno je pri kojim operacijama je primena navođenja ekonomski najopravdanija i koliki nivo opremljenosti uređajima za navođenje i upravljanje je potreban. Posebno je analizirana funkcionalna zavisnost ekonomskih ušteda u gorivu i inputima za operacije distribucije mineralnog hraniva i hemijske zaštite biljaka. Tabelarno je data procena stepena svih očekivanih ušteda za operacije koje se odnose na pet analiziranih kultura. ., This paper examined the level of savings in the application of modern technical systems for satellite guidance and control over performing agricultural operations throughout the season. The exemplary property was Agricultural Corporation Belgrade (PKB), which covers about 21.000 hectares of arable land. The effects of plot shape and direction of movement of tractor-attachment units in calculating the savings from reduced overlapping of adjacent passes were studied. The analysis was carried out of savings per crop (maize, wheat, soybean, sugar beet and alfalfa) and the operations for each crop separately, based on the manufacturing technology applied to an exemplary property. Detailed data are shown only for maize. Comparing the achieved level of savings, the application of guidance for the type of the most economically viable operations was found as well as the needed equipment level of guidance devices and management. In particular, the analysis involved the functional dependence of the economic savings in fuel and inputs for the operations such as mineral fertilizers distribution and chemical plant protection. Tabulated are the data estimates for the degree of anticipated savings for operations related to the five analyzed crops. .",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd",
journal = "Poljoprivredna tehnika",
title = "Analiza ekonomskih pokazatelja u primeni GPS tehnologije u Poljoprivrednom kombinatu Beograd, Analysis of economic indicators for GPS technologies application in Agricultural Corporation Belgrade (PKB)",
pages = "88-79",
number = "4",
volume = "37",
url = "https://hdl.handle.net/21.15107/rcub_machinery_1392"
}
Marković, D., Krstić, D., Simonović, V.,& Marković, I.. (2012). Analiza ekonomskih pokazatelja u primeni GPS tehnologije u Poljoprivrednom kombinatu Beograd. in Poljoprivredna tehnika
Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd., 37(4), 79-88.
https://hdl.handle.net/21.15107/rcub_machinery_1392
Marković D, Krstić D, Simonović V, Marković I. Analiza ekonomskih pokazatelja u primeni GPS tehnologije u Poljoprivrednom kombinatu Beograd. in Poljoprivredna tehnika. 2012;37(4):79-88.
https://hdl.handle.net/21.15107/rcub_machinery_1392 .
Marković, Dragan, Krstić, Dragan, Simonović, Vojislav, Marković, Ivana, "Analiza ekonomskih pokazatelja u primeni GPS tehnologije u Poljoprivrednom kombinatu Beograd" in Poljoprivredna tehnika, 37, no. 4 (2012):79-88,
https://hdl.handle.net/21.15107/rcub_machinery_1392 .

Matematički model temperaturnog polja skladišta za povrće i voće bez strujanja vazduha

Simonović, Vojislav; Dragić, Marko; Čebela, Žarko; Krstić, Dragan; Marković, Ivana

(Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad, 2011)

TY  - JOUR
AU  - Simonović, Vojislav
AU  - Dragić, Marko
AU  - Čebela, Žarko
AU  - Krstić, Dragan
AU  - Marković, Ivana
PY  - 2011
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/1237
AB  - U ovom radu modeliran je uticaj toplote koje povrće i voće odaje tokom procesa skladištenja kao produkt respiracije uz CO2 i vodu. Za potrebe modeliranja, celo skladište izdeljeno je na N3 paralelopipeda i usvojene su početne pretpostavke. Vazduh miruje u graničnim slojevima, specifična toplota vazduha jednaka je u svim tačkama skladišta, u paralelopipedu V postoji tačka C u kojoj temperatura θC(t) i gustina ρC(t) imaju srednje vrednosti θsr(t) i ρsr(t), koeficijent provođenja toplote između dve susedne ćelije je konstantan i nezavistan od položaja tih ćelija, srednja gustina vazduha u ćeliji je i ona je konstantna za celu ćeliju. Upravljački toplotni izvori ili ponori potiču od nekog električnog ili termičkog grejnog odnosno rashladnog tela, dok poremećajni toplotni izvori potiču od uskladištenog povrća i voća. Njihov intenzitet je određen položajem upravljačkog organa odnosno količinom, stanjem i vremenom skladištenja biomaterijala. Na kraju rada je prikazana približna jednačina temperaturnog polja skladišta sa čistim vremenskim kašnjenjem koje se javlja usled vremena potrebnog za prenos signala sa jednog mesta na drugo, kao i dijagram odskočnog odziva temperature.
AB  - In this paper we modeled the impact of heat that gives vegetables and fruits during the storage as a product of respiration with CO2 and water. For the purposes of modeling the entire warehouse is divided on the N3 parallelepiped and adopted the initial assumptions. The air is at rest in the boundary layer, the specific heat of air is equal to the warehouse at all points in the parallelepiped V there is a point C with temperature θC(t) and density ρC(t) have mean values θsr(t) and ρsr(t), the coefficient of the implementation heat between two adjacent cells is constant and independent of the position of these cells, the mean air density in the cell and it is constant for the entire cell. Control heat sources or sinks come from any electrical or thermal heating and cooling of the body, and disturbances originating from the thermal sources of stored vegetables and fruits. Their intensity is determined by the position of the driver or the quantity, condition and time of storage of biomaterials. At the end of the paper shows approximate storage temperature field equations with pure time delay that occurs due to the time required to transmit signals from one place to another, and the rebound temperature response diagram.
PB  - Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad
T2  - Savremena poljoprivredna tehnika
T1  - Matematički model temperaturnog polja skladišta za povrće i voće bez strujanja vazduha
T1  - Mathematical model of temperature field of storage for vegetables and fruits without air flow
EP  - 418
IS  - 4
SP  - 409
VL  - 37
UR  - https://hdl.handle.net/21.15107/rcub_machinery_1237
ER  - 
@article{
author = "Simonović, Vojislav and Dragić, Marko and Čebela, Žarko and Krstić, Dragan and Marković, Ivana",
year = "2011",
abstract = "U ovom radu modeliran je uticaj toplote koje povrće i voće odaje tokom procesa skladištenja kao produkt respiracije uz CO2 i vodu. Za potrebe modeliranja, celo skladište izdeljeno je na N3 paralelopipeda i usvojene su početne pretpostavke. Vazduh miruje u graničnim slojevima, specifična toplota vazduha jednaka je u svim tačkama skladišta, u paralelopipedu V postoji tačka C u kojoj temperatura θC(t) i gustina ρC(t) imaju srednje vrednosti θsr(t) i ρsr(t), koeficijent provođenja toplote između dve susedne ćelije je konstantan i nezavistan od položaja tih ćelija, srednja gustina vazduha u ćeliji je i ona je konstantna za celu ćeliju. Upravljački toplotni izvori ili ponori potiču od nekog električnog ili termičkog grejnog odnosno rashladnog tela, dok poremećajni toplotni izvori potiču od uskladištenog povrća i voća. Njihov intenzitet je određen položajem upravljačkog organa odnosno količinom, stanjem i vremenom skladištenja biomaterijala. Na kraju rada je prikazana približna jednačina temperaturnog polja skladišta sa čistim vremenskim kašnjenjem koje se javlja usled vremena potrebnog za prenos signala sa jednog mesta na drugo, kao i dijagram odskočnog odziva temperature., In this paper we modeled the impact of heat that gives vegetables and fruits during the storage as a product of respiration with CO2 and water. For the purposes of modeling the entire warehouse is divided on the N3 parallelepiped and adopted the initial assumptions. The air is at rest in the boundary layer, the specific heat of air is equal to the warehouse at all points in the parallelepiped V there is a point C with temperature θC(t) and density ρC(t) have mean values θsr(t) and ρsr(t), the coefficient of the implementation heat between two adjacent cells is constant and independent of the position of these cells, the mean air density in the cell and it is constant for the entire cell. Control heat sources or sinks come from any electrical or thermal heating and cooling of the body, and disturbances originating from the thermal sources of stored vegetables and fruits. Their intensity is determined by the position of the driver or the quantity, condition and time of storage of biomaterials. At the end of the paper shows approximate storage temperature field equations with pure time delay that occurs due to the time required to transmit signals from one place to another, and the rebound temperature response diagram.",
publisher = "Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad",
journal = "Savremena poljoprivredna tehnika",
title = "Matematički model temperaturnog polja skladišta za povrće i voće bez strujanja vazduha, Mathematical model of temperature field of storage for vegetables and fruits without air flow",
pages = "418-409",
number = "4",
volume = "37",
url = "https://hdl.handle.net/21.15107/rcub_machinery_1237"
}
Simonović, V., Dragić, M., Čebela, Ž., Krstić, D.,& Marković, I.. (2011). Matematički model temperaturnog polja skladišta za povrće i voće bez strujanja vazduha. in Savremena poljoprivredna tehnika
Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad., 37(4), 409-418.
https://hdl.handle.net/21.15107/rcub_machinery_1237
Simonović V, Dragić M, Čebela Ž, Krstić D, Marković I. Matematički model temperaturnog polja skladišta za povrće i voće bez strujanja vazduha. in Savremena poljoprivredna tehnika. 2011;37(4):409-418.
https://hdl.handle.net/21.15107/rcub_machinery_1237 .
Simonović, Vojislav, Dragić, Marko, Čebela, Žarko, Krstić, Dragan, Marković, Ivana, "Matematički model temperaturnog polja skladišta za povrće i voće bez strujanja vazduha" in Savremena poljoprivredna tehnika, 37, no. 4 (2011):409-418,
https://hdl.handle.net/21.15107/rcub_machinery_1237 .